Exterios E Single Split System Wall Mounted Heat Pump | Panasonic North America - Canada
Order No: PAPAMY1501049CE AU TO HEAT COOL DRY FAN FAN SPEED AIR SWING OFF/ON AUTO ECONAVI COMFORT MODE T E M P AIR SWING POWERFUL/ QUIET FAN SPEED TIM ER ON 1 2 SET 3 O FF CANCEL AC RC SET CHECK CLOCK RESET AU TO HEAT COOL DRY FAN FAN S PEED AIR SWING OFF/ON AUTO ECONAVI COMFORT MODE TEM P POWERFUL/ QUIET FAN SPEED AIR SWING TIM ER ON 1 2 SET 3 O FF CANCEL AC RC SET CHECK CLOCK RESET Indoor Unit CS-E9RKUAW CS-E12RKUAW CS-E18RKUAW CS-E24RKUAW Outdoor Unit CU-E9RKUA CU-E12RKUA CU-E18RKUA CU-E24RKUA Destination USA Canada Please file and use this manual together with the service manual for Model No. CU-2E18NBU and CU-5E36QBU, Order No. PHAAM1111120A1 and PAPAMY1312037CE. WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the products dealt with in this service information by anyone else could result in serious injury or death. PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2015. TABLE OF CONTENTS 1. Safety Precautions .............................................3 2. Specification .......................................................5 3. Features.............................................................11 4. Location of Controls and Components..........12 4.1 Indoor Unit ..................................................12 4.2 Outdoor Unit ...............................................12 4.3 Remote Control ..........................................12 5. Dimensions .......................................................13 5.1 Indoor Unit ..................................................13 5.2 Outdoor Unit ...............................................15 6. Refrigeration Cycle Diagram ...........................16 6.1 CU-E9RKUA CU-E12RKUA......................16 6.2 CU-E18RKUA CU-E24RKUA....................17 7. Block Diagram ..................................................18 7.1 CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA.................18 7.2 CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA.................19 8. Wiring Connection Diagram ............................20 8.1 Indoor Unit ..................................................20 8.2 Outdoor Unit ...............................................22 9. Electronic Circuit Diagram ..............................24 9.1 Indoor Unit ..................................................24 9.2 Outdoor Unit ...............................................26 10. Printed Circuit Board .......................................28 10.1 Indoor Unit ..................................................28 10.2 Outdoor Unit ...............................................30 11. Installation Instruction (E9RK and E12RK)....33 11.1 Select the Best Location.............................33 11.2 Indoor Unit ..................................................34 11.3 Outdoor Unit ...............................................38 12. Installation Instruction (E18RK and E24RK) .........................................41 12.1 Select the Best Location.............................41 12.2 Indoor Unit ..................................................42 12.3 Outdoor Unit ...............................................46 13. Operation Control.............................................49 13.1 Basic Function ............................................49 13.2 Indoor Fan Speed Control ..........................50 13.3 Indoor Fan Motor Operation .......................51 13.4 Outdoor Fan Motor Operation ....................51 13.5 Airflow Direction..........................................52 13.6 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode) ......................................53 13.7 Quiet Operation (Heating) ..........................54 13.8 Powerful Mode Operation...........................54 13.9 Timer Control..............................................54 13.10 Auto Restart Control ...................................55 13.11 Indication Panel ..........................................55 13.12 ECONAVI and AUTO COMFORT Operation ....................................................55 14. Operation Control (For Multi Split Connection) ............................59 14.1 Cooling operation .......................................59 14.2 Soft Dry Operation......................................59 14.3 Heating Operation ......................................59 14.4 Automatic Operation (For Multi Split Connection Only) ...............60 14.5 Indoor Fan Motor Operation .......................60 14.6 Powerful Mode Operation...........................60 14.7 Auto restart control .....................................60 14.8 Indication Panel ..........................................60 15. Protection Control (E9RK and E12RK)...........61 15.1 Protection Control For All Operations.........61 15.2 Protection Control For Cooling & Soft Dry Operation ....................................................63 16. Protection Control (E18RK and E24RK).........66 16.1 Protection Control For All Operations.........66 16.2 Protection Control For Cooling & Soft Dry Operation ....................................................67 17. Servicing Mode .................................................70 17.1 Auto Off/On Button .....................................70 17.2 Cooling Only Operation (Single connection Only, Multi connection please refer to Multi outdoor manual).........71 17.3 Remote Control Button ...............................72 18. Troubleshooting Guide ....................................73 18.1 Refrigeration Cycle System ........................73 18.2 Breakdown Self Diagnosis Function...........75 18.3 Error Code Table ........................................76 18.4 Self-diagnosis Method ................................78 19. Disassembly and Assembly Instructions ... 107 19.1 CS-E9RKUAW CS-E12RKUAW ............ 107 19.2 CS-E18RKUAW CS-E24RKUAW .......... 111 19.3 Outdoor Electronic Controller Removal Procedure ................................................ 114 20. Technical Data ............................................... 116 20.1 Cool Mode Performance Data ................. 116 20.2 Heat Mode Performance Data................. 120 21. Service Data ................................................... 122 21.1 Cool Mode Outdoor Air Temperature Characteristic........................................... 122 21.2 Heat Mode Outdoor Air Temperature Characteristic........................................... 126 21.3 Piping Length Correction Factor.............. 130 22. Exploded View and Replacement Parts List .................................................................. 132 22.1 Indoor Unit ............................................... 132 22.2 Outdoor Unit ............................................ 138 2 1. Safety Precautions Read the following "SAFETY PRECAUTIONS" carefully before perform any servicing. Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications. WARNING CAUTION This indication shows the possibility of causing death or serious injury This indication shows the possibility of causing injury or damage to properties. The items to be followed are classified by the symbols: This symbol denotes item that is PROHIBITED from doing. Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference. WARNING 1. Do not modify the machine, part, material during repairing service. 2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit. 3. Do not wrench the fasten terminal. Pull it out or insert it straightly. 4. Engage authorized dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water leakage, electrical shock or fire. 5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire. 6. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock. 7. Install at a strong and firm location which is able to withstand the set's weight. If the strength is not enough or installation is not properly done, the set will drop and cause injury. 8. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire. 9. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown. 10. Do not use joint cable for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to installation instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no external force will be acted on the terminal. If connecting or fixing is not perfect, it will cause heat up or fire at the connection. 11. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause heat-up or fire at the connection point of terminal, fire or electrical shock. 12. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration cycle (piping). (Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). 13. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may climb up to outdoor unit and cross over the handrail and causing accident. 14. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown. 15. Keep away from small children, the thin film may cling to nose and mouth and prevent breathing. 16. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire. 17. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may break and cause refrigerant gas leakage. 18. For R410A model, use piping, flare nut and tools which is specified for R410A refrigerant. Using of existing (R22) piping, flare nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. Thickness or copper pipes used with R410A must be more than 1/32" (0.8 mm). Never use copper pipes thinner than 1/32" (0.8 mm). It is desirable that the amount of residual oil is less than 0.0008 oz/ft (40 mg/10 m). 3 WARNING 19. During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). 20. During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). 21. After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire. 22. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire. 23. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury. 24. Must not use other parts except original parts describe in catalog and manual. 25. Using of refrigerant other than the specified type may cause product damage, burst and injury etc. CAUTION 1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture. 3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may break and cause refrigerant gas leakage. 4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury. 5. Select an installation location which is easy for maintenance. 6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F 70°F (30°C 40°C) higher. Please use a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C). Pb free solder will tend to splash when heated too high (about 1100°F / 600°C). 7. Power supply connection to the room air conditioner. Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG14 (For E9RK and E12RK) and AWG12 (For E18RK and E24RK) wires. Power supply point should be in an easily accessible place for power disconnection in case of emergency. In some countries, permanent connection of this air conditioner to the power supply is prohibited. Fix power supply connection to a circuit breaker for permanent connection. Use NRTL approved fuse or circuit breaker (rating refers to name plate) for permanent connection. 8. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts. Take care of the liquid refrigerant, it may cause frostbite. 9. Installation or servicing work: It may need two people to carry out the installation or servicing work. 10. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc. 11. Do not sit or step on the unit, you may fall down accidentally. 12. Do not touch the sharp aluminium fins or edges of metal parts. If you are required to handle sharp parts during installation or servicing, please wear hand glove. Sharp parts may cause injury. 4 2. Specification Cooling Heating Model Indoor Outdoor CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA Performance Test Condition ARI ARI Power Supply Phase, Hz V Single, 60 208 230 Single, 60 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Capacity kW BTU/h 1.20 2.64 3.00 1.20 2.64 3.00 1.20 3.36 3.90 1.20 3.36 3.90 4100 9000 10200 4100 9000 10200 4100 11500 13300 4100 11500 13300 Running Current A - 3.6 - - 3.2 - - 4.7 - - 4.2 - Input Power W 250 690 850 250 690 850 250 920 1.15k 250 920 1.15k EER W/W Btu/hW 4.80 3.83 3.53 4.80 3.83 3.53 4.80 3.65 3.39 4.80 3.65 3.39 16.40 13.00 12.00 16.40 13.00 12.00 16.40 12.50 11.55 16.40 12.50 11.55 Power Factor % - 92 - - 94 - - 94 - - 95 - dB-A Indoor Noise (H / L / QLo) Power Level dB 40 / 25 / 20 56 / - / - 40 / 25 / 20 56 / - / - 43 / 28 / 20 59 / - / - 43 / 28 / 20 59 / - / - dB-A Outdoor Noise (H / L / QLo) Power Level dB 47 / - / 62 / - / - 47 / - / 62 / - / - 48 / - / 63 / - / - 48 / - / 63 / - / - Capacity kW BTU/h 1.20 3.52 4.14 1.20 3.52 4.14 1.20 4.05 4.77 1.20 4.05 4.77 4100 12000 14100 4100 12000 14100 4100 13800 16300 4100 13800 16300 Running Current A - 5.7 - - 5.1 - - 6.3 - - 5.6 - Input Power W 200 1.12k 1.50k 200 1.12k 1.50k 200 1.25k 1.71k 200 1.25k 1.71k COP W/W Btu/hW 6.00 3.14 2.76 6.00 3.14 2.76 6.00 3.24 2.79 6.00 3.24 2.79 20.50 10.70 9.40 20.50 10.70 9.40 20.50 11.00 9.50 20.50 11.00 9.50 Power Factor % - 94 - - 95 - - 95 - - 97 - dB-A Indoor Noise (H / L / QLo) Power Level dB 42 / 29 / 26 58 / - / - 42 / 29 / 26 58 / - / - 44 / 35 / 32 60 / - / - 44 / 35 / 32 60 / - / - dB-A Outdoor Noise (H / L / QLo) Power Level dB 48 / - / 63 / - / - 48 / - / 63 / - / - 49 / - / 64 / - / - 49 / - / 64 / - / - Max Current (A) / Max Input Power (W) 7.0 / 1.57k 7.8 / 1.71k Starting Current (A) 5.7 6.3 Min Circuit Ampacity 15.0 15.0 Max. Current Protection 15.0 15.0 SEER / HSPF 23.00 / 11.00 22.50 / 11.00 Type Hermetic Motor / Rotary Hermetic Motor / Rotary Compressor Motor Type Brushless (4 poles) Brushless (4 poles) Output Power W 700 700 Type Cross-flow fan Cross-flow fan Material ASG20K1 ASG20K1 Motor Type DC (8 poles) DC (8 poles) Input Power W 47.0 - 47.0 47.0 - 47.0 Output Power W QLo rpm Lo rpm Speed Me rpm Hi rpm SHi rpm 40 Cooling : 610 Heating : 730 Cooling : 710 Heating : 830 Cooling : 910 Heating : 1040 Cooling : 1120 Heating : 1250 Cooling : 1210 Heating : 1340 40 Cooling : 620 Heating : 940 Cooling : 780 Heating : 1040 Cooling : 1000 Heating : 1210 Cooling : 1230 Heating : 1380 Cooling : 1350 Heating : 1450 Indoor Fan 5 Outdoor Fan Model Type Material Motor Type Input Power Output Power Speed Hi Moisture Removal Indoor Outdoor W W rpm L/h (Pt/h) QLo m3/min (ft3/min) Lo m3/min (ft3/min) Indoor Airflow Me m3/min (ft3/min) Hi m3/min (ft3/min) SHi m3/min (ft3/min) Outdoor Airflow Refrigeration Cycle Hi Control Device Refrigerant Oil Refrigerant Type m3/min (ft3/min) cm3 g (oz) Height(I/D / O/D) mm (inch) Dimension Width (I/D / O/D) mm (inch) Depth (I/D / O/D) mm (inch) Weight Net (I/D / O/D) kg (lb) Pipe Diameter (Liquid / Gas) mm (inch) Standard length m (ft) Piping Length range (min max) m (ft) I/D & O/D Height different m (ft) Additional Gas Amount g/m (oz/ft) Length for Additional Gas m (ft) Drain Hose Inner Diameter Length mm (inch) mm (inch) Fin Material Indoor Heat Fin Type Exchanger Row x Stage x FPI Size (W x H x L) inch Fin Material Outdoor Fin Type Heat Exchanger Row x Stage x FPI Size (W x H x L) inch Air Filter Material Type Power Supply Power Supply Cord A Thermostat Protection Device CS-E9RKUAW CU-E9RKUA Propeller PP DC (8 poles) - 40 C: 830 H: 780 0.6 (1.3) Cooling : 6.28 (222) Heating : 7.08 (250) Cooling : 7.40 (261) Heating : 8.20 (290) Cooling : 9.64 (340) Heating : 10.55 (373) Cooling : 12.0 (425) Heating : 12.9 (455) Cooling : 13.00 (459) Heating : 13.91 (491) Cooling : 31.0 (1095) Heating : 31.0 (1095) Expansion Valve FV50S (320) R410A, 980 (34.6) 290 (11-7/16) / 540 (21-9/32) 870 (34-9/32) / 780 (30-23/32) 214 (8-7/16) / 289 (11-13/32) 9 (20) 37 (82) 6.35 (1/4) / 9.52 (3/8) 7.5 (24.6) 3 (9.8) ~ 20 (65.6) 15 (49.2) 20 (0.2) 7.5 (24.6) 16.7 (5/8) 650 (25-5/8) Aluminium (Pre Coat) Slit Fin 2 x 15 x 21 1 x 12-13/32 x 24 Aluminium (Blue coated) Corrugate Fin 2 x 24 x 17 1-13/32 x 19-13/16 x 28-1/16 26-7/8 Polypropelene One-touch Outdoor - - - CS-E12RKUAW CU-E12RKUA Propeller PP DC (8 poles) - 40 C: 830 H: 820 0.8 (1.7) Cooling : 5.97 (211) Heating : 9.37 (331) Cooling : 7.76 (274) Heating : 10.49 (370) Cooling : 10.22 (361) Heating : 12.40 (438) Cooling : 12.8 (450) Heating : 14.3 (505) Cooling : 14.14 (499) Heating : 15.08 (532) Cooling : 31.2 (1100) Heating : 31.2 (1100) Expansion Valve FV50S (320) R410A, 1.08k (38.1) 290 (11-7/16) / 540 (21-9/32) 870 (34-9/32) / 780 (30-23/32) 214 (8-7/16) / 289 (11-13/32) 9 (20) 37 (82) 6.35 (1/4) / 12.70 (1/2) 7.5 (24.6) 3 (9.8) ~ 20 (65.6) 15 (49.2) 20 (0.2) 7.5 (24.6) 16.7 (5/8) 650 (25-5/8) Aluminium (Pre Coat) Slit Fin 2 x 15 x 21 1 x 12-13/32 x 24 Aluminium (Blue coated) Corrugate Fin 2 x 24 x 17 1-13/32 x 19-13/16 x 32-7/16 31-1/4 Polypropelene One-touch Outdoor - - - 6 Model Indoor Outdoor CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA DRY BULB WET BULB DRY BULB WET BULB Indoor Operation Range (Cooling) (°F / °C) Maximum Minimum 89.6 / 32 60.8 / 16 73.4 / 23 51.8 / 11 89.6 / 32 60.8 / 16 73.4 / 23 51.8 / 11 Outdoor Operation Range (Cooling) (°F / °C) Maximum Minimum 114.8 / 46 0 / -17.8 78.8 / 26 - / - 114.8 / 46 0 / -17.8 78.8 / 26 - / - Indoor Operation Range Maximum 86.0 / 30 - / - 86.0 / 30 - / - (Heating) (°F / °C) Minimum 60.8 / 16 - / - 60.8 / 16 - / - Outdoor Operation Range (Heating) (°F / °C) Maximum Minimum 75.2 / 24 -4 / -20 64.4 / 18 -5.8 / -21 75.2 / 24 -4 / -20 64.4 / 18 -5.8 / -21 1. Cooling capacities are based on indoor temperature of 27°C DRY BULB (80.6°F DRY BULB), 19.0°C WET BULB (66°F WET BULB) and outdoor air temperature of 35°C DRY BULB (95°F DRY BULB), 24°C WET BULB (75.2°F WET BULB) 2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb) 3. Specifications are subjected to change without prior notice for further improvement. 7 Cooling Heating Model Indoor Outdoor CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA Performance Test Condition ARI ARI Power Supply Phase, Hz V Single, 60 208 230 Single, 60 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Capacity kW BTU/h 1.70 5.04 5.80 1.70 5.04 5.80 1.70 7.02 8.00 1.70 7.02 8.00 5800 17200 19800 5800 17200 19800 5800 24000 27200 5800 24000 27200 Running Current A - 7.00 - - 6.30 - - 11.90 - - 10.80 - Input Power W 430 1.30k 1.60k 430 1.30k 1.60k 430 2.35k 2.72k 430 2.35k 2.72k EER W/W Btu/hW 3.95 3.88 3.63 3.95 3.88 3.63 3.95 2.99 2.94 3.95 2.99 2.94 13.45 13.20 12.35 13.45 13.20 12.35 13.45 10.20 10.00 13.45 10.20 10.00 Power Factor % - 89 - - 90 - - 95 - - 95 - dB-A Indoor Noise (H / L / QLo) Power Level dB 47 / 39 / 36 63 / - / - 47 / 39 / 36 63 / - / - 48 / 40 / 37 64 / - / - 48 / 40 / 37 64 / - / - dB-A Outdoor Noise (H / L / QLo) Power Level dB 49 / - / 63 / - / - 49 / - / 63 / - / - 51 / - / 65 / - / - 51 / - / 65 / - / - Capacity kW BTU/h 1.70 6.33 6.43 1.70 6.33 6.43 1.70 8.46 8.56 1.70 8.46 8.56 5800 21600 22000 5800 21600 22000 5800 28800 29200 5800 28800 29200 Running Current A - 9.30 - - 8.30 - - 12.60 - - 11.40 - Input Power W 380 1.75k 1.80k 380 1.75k 1.80k 380 2.50k 2.66k 380 2.50k 2.66k COP W/W Btu/hW 4.47 3.62 3.57 4.47 3.62 3.57 4.47 3.38 3.22 4.47 3.38 3.22 15.25 12.30 12.20 15.25 12.30 12.20 15.25 11.50 10.95 15.25 11.50 10.95 Power Factor % - 90 - - 92 - - 95 - - 95 - dB-A Indoor Noise (H / L / QLo) Power Level dB 46 / 39 / 36 62 / - / - 46 / 39 / 36 62 / - / - 48 / 40 / 37 64 / - / - 48 / 40 / 37 64 / - / - dB-A Outdoor Noise (H / L / QLo) Power Level dB 51 / - / 65 / - / - 51 / - / 65 / - / - 53 / - / 67 / - / - 53 / - / 67 / - / - Max Current (A) / Max Input Power (W) 12.7 / 2.69k 13.7 / 3.06k Starting Current (A) 9.3 12.6 Min Circuit Ampacity 15.0 20.0 Max. Overcurrent Protection 20.0 25.0 SEER / HSPF 19.50 / 10.00 19.00 / 10.00 Type Hermetic Motor / Rotary Hermetic Motor / Rotary Compressor Motor Type Brushless (4 poles) Brushless (4 poles) Output Power W 1.7k 1.7k Type Cross-flow fan Cross-flow fan Material ASG30K1 ASG30K1 Motor Type DC (8 poles) DC (8 poles) Input Power W 94.8 - 94.8 94.8 - 94.8 Output Power W QLo rpm Lo rpm Speed Me rpm Hi rpm SHi rpm 40 Cooling : 970 Heating : 1030 Cooling : 1060 Heating : 1120 Cooling : 1220 Heating : 1260 Cooling : 1380 Heating : 1410 Cooling : 1480 Heating : 1500 40 Cooling : 1000 Heating : 1110 Cooling : 1090 Heating : 1220 Cooling : 1240 Heating : 1360 Cooling : 1400 Heating : 1500 Cooling : 1500 Heating : 1600 Indoor Fan 8 Model Indoor Outdoor CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA Type Propeller Propeller Material PP PP Outdoor Fan Motor Type DC Motor (8 poles) DC Motor (8 poles) Input Power W - - Output Power Speed Hi Moisture Removal QLo Lo Indoor Airflow Me Hi SHi Outdoor Airflow Hi Refrigeration Cycle Control Device Refrigerant Oil Refrigerant Type W rpm L/h (Pt/h) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) m3/min (ft3/min) cm3 g (oz) 60 Cooling: 700 Heating: 700 1.4 (3.0) Cooling : 13.28 (469) Heating : 14.40 (508) Cooling : 14.53 (513) Heating : 15.65 (553) Cooling : 16.77 (592) Heating : 17.61 (622) Cooling : 19.00 (670) Heating : 19.70 (695) Cooling : 20.40 (720) Heating : 20.96 (740) Cooling : 54.5 (1925) Cooling : 54.5 (1925) Heating : 54.5 (1925) Heating : 54.5 (1925) Expansion Valve FV50S (800) R410A, 1.60k (56.5) 60 Cooling: 730 Heating: 750 3.6 (7.6) Cooling : 13.42 (474) Heating : 14.86 (525) Cooling : 14.67 (518) Heating : 16.39 (579) Cooling : 16.77 (592) Heating : 18.35 (648) Cooling : 19.00 (670) Heating : 20.30 (715) Cooling : 20.40 (720) Heating : 21.70 (766) Cooling : 54.9 (1940) Cooling : 54.9 (1940) Heating : 56.5 (1995) Heating : 56.5 (1995) Expansion Valve FV50S (800) R410A, 1.85k (65.3) Height(I/D / O/D) mm (inch) 290 (11-7/16) / 795 (31-5/16) 290 (11-7/16) / 795 (31-5/16) Dimension Width (I/D / O/D) mm (inch) 1070 (42-5/32) / 875 (34-15/32) 1070 (42-5/32) / 875 (34-15/32) Depth (I/D / O/D) mm (inch) 240 (9-15/32) / 320 (12-5/8) 240 (9-15/32) / 320 (12-5/8) Weight Net (I/D / O/D) kg (lb) 12 (26) 60 (132) 12 (26) 60 (132) Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) 6.35 (1/4) / 15.88 (5/8) Standard length m (ft) 7.5 (24.6) 7.5 (24.6) Piping Length range (min max) m (ft) 3 (9.8) ~ 30.5 (100.0) 3 (9.8) ~ 30.5 (100.0) I/D & O/D Height different m (ft) 15 (49.2) 15 (49.2) Additional Gas Amount g/m (oz/ft) 25 (0.3) 25 (0.3) Length for Additional Gas m (ft) 10 (32.8) 10 (32.8) Drain Hose Inner Diameter Length mm (inch) mm (inch) 16.7 (5/8) 650 (25-5/8) 16.7 (5/8) 650 (25-5/8) Fin Material Aluminium (Pre Coat) Aluminium (Pre Coat) Indoor Heat Fin Type Exchanger Row x Stage x FPI Slit Fin 2 x 15 x 21 Slit Fin 2 x 15 x 21 Size (W x H x L) inch 1 x 12-13/32 x 31-7/8 1 x 12-13/32 x 31-7/8 Fin Material Aluminium (Blue coated) Aluminium (Blue coated) Outdoor Fin Type Heat Exchanger Row x Stage x FPI Size (W x H x L) inch Air Filter Material Type Corrugate Fin 2 x 36 x 19 1-13/32 x 29-25/32 x 34-7/32 35-5/16 Polypropelene One-touch Corrugate Fin 2 x 36 x 19 1-13/32 x 29-25/32 x 34-7/32 35-5/16 Polypropelene One-touch Power Supply Outdoor Outdoor Power Supply Cord A - - Thermostat - - Protection Device - - 9 Model Indoor Outdoor CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA DRY BULB WET BULB DRY BULB WET BULB Indoor Operation Range (Cooling) (°F / °C) Maximum Minimum 89.6 / 32 60.8 / 16 73.4 / 23 51.8 / 11 89.6 / 32 60.8 / 16 73.4 / 23 51.8 / 11 Outdoor Operation Range (Cooling) (°F / °C) Maximum Minimum 114.8 / 46 0 / -17.8 78.8 / 26 - / - 114.8 / 46 0 / -17.8 78.8 / 26 - / - Indoor Operation Range Maximum 86.0 / 30 - / - 86.0 / 30 - / - (Heating) (°F / °C) Minimum 60.8 / 16 - / - 60.8 / 16 - / - Outdoor Operation Range (Heating) (°F / °C) Maximum Minimum 75.0 / 24 -4 / -20 64.4 / 18 -5.8 / -21 75.0 / 24 -4 / -20 64.4 / 18 -5.8 / -21 1. Cooling capacities are based on indoor temperature of 80°F DRY BULB, 67°F WET BULB and outdoor air temperature of 95°F DRY BULB, 75°F WET BULB. 2. Heating capacities are based on indoor temperature of 70°F DRY BULB, 60°F WET BULB and outdoor air temperature of 47°F DRY BULB, 43°F WET BULB. 3. Specifications are subjected to change without prior notice for further improvement. 10 3. Features Inverter Technology o Wider output power range o Energy saving o Quick Cooling o More precise temperature control Environment Protection o Non-ozone depletion substances refrigerant (R410A) Long Installation Piping o CS/CU-E9/12RK, long piping up to 65 feet (20 meters) o CS/CU-E18/24RK, long piping up to 100 feet (30 meters) Easy to use remote control Quality Improvement o Random auto restart after power failure for safety restart operation o Gas leakage protection o Prevent compressor reverse cycle o Inner protector to protect Compressor o Noise prevention during soft dry operation Operation Improvement o Quiet mode to reduce the indoor unit operating sound o Powerful mode to reach the desired room temperature quickly Serviceability Improvement o Breakdown Self Diagnosis function 11 4. Location of Controls and Components 4.1 Indoor Unit Aluminium Fin Front Panel Auto OFF/ON button Air Filters Human activity sensor Horizontal Airflow Direction Louver · Manually adjustable (E9RK and E12RK). Air Purifying Filter POWER TIMER ECONAVI AUTO COMFORT POWERFUL QUIET Remote control receiver and Indicator Vertical Airflow Direction Louver · Do not adjust by hand. INDICATOR POWER TIMER ECONAVI AUTO COMFORT POWERFUL QUIET (Green) (Orange) (Green) (Green) (Orange) (Orange) 4.2 · Do not adjust by hand (E18RK and E24RK). Outdoor Unit Air inlet (rear) Air inlet (side) 4.3 Remote Control Air outlet Remote control display Econavi operation Operation mode Temperature setting Powerful/Sleep mode operation Check AUTO HEAT COOL DRY FAN FAN SPEED AIR SW ING OFF/ON AUTO ECONAVI COMFORT MODE TEMP AIR SWING POWERFUL/ QUIET FAN SPEED TIMER ON SET 1 2 3 OFF CANCEL AC RC SET CHECK CLOCK RESET OFF/ON Auto comfort operation Vertical airflow direction selection Fan speed selection Timer setting Clock setting Remote control display Econavi operation Operation mode Temperature setting Powerful/Sleep mode operation Check AUTO HEAT COOL DRY FAN FAN SPEED AIR SW ING OFF/ON AUTO ECONAVI COMFORT MODE TEMP POWERFUL/ QUIET FAN SPEED AIR SWING TIMER ON SET 1 2 3 OFF CANCEL AC RC SET CHECK CLOCK RESET OFF/ON Auto comfort operation Airflow direction selection Fan speed selection Timer setting Clock setting E9RK E12RK E18RK E24RK 12 5. Dimensions 5.1 Indoor Unit 5.1.1 CS-E9RKUAW CS-E12RKUAW <Top View> <Side View> Air intake direction <Front View> (8-7/16) <Side View> 8-7/16 11-7/16 2-13/32 1-49/64 Left piping hole Air outlet direction 1/32~1/16 <Bottom View> 4-29/32 2-11/32 <Rear View> 34-9/32 1/32~1/16 Liquid side Gas side 2-11/32 4-17/32 Right piping hole Remote control 1-7/8 7/8 5-1/4 AUTO HEAT COOL DRY FAN FAN S P E ED A IR SW IN G O FF/O N ECONAVI AUTO CO MFO RT MODE T E M P AIR SWING POWERFUL/ QUIET FAN SPEED TIM ER ON 1 2 SET 3 O FF CAN CEL AC RC SET CHECK CLOCK RESET Remote control holder 2-3/8 2 16-1/8 (1-5/8~2-13/32) Relative position between the indoor unit and the installation plate <Front View> 29-29/64 Installation plate Indoor unit external dimensions line 17-9/32 Left piping hole 3-3/4 1-11/16 17 Right piping hole 5-1/16 9-17/32 5-1/16 9-17/32 10-3/8 5/8 Unit: inch 13 11-7/16 2-13/32 1-49/64 5.1.2 CS-E18RKUAW CS-E24RKUAW <Top View> (9-15/32) <Side View> Air intake direction <Front View> <Side View> 9-15/32 Left piping hole Air outlet direction 1/32~1/16 <Bottom View> 42-5/32 4-29/32 2-11/32 <Rear View> 1/32~1/16 2-11/32 4-17/32 Right piping hole Remote control 1-7/8 7/8 5-1/4 AUTO HEAT COOL DRY FAN FAN SPEED A IR SW IN G O FF/ON ECO NAVI AUTO COMFORT MODE TEM P POWERFUL/ QU IET FAN SPEED A IR SW ING TIM ER ON 1 2 SET 3 O FF CA N CEL AC RC SET CHECK CLOCK RESET Remote control holder 2-3/8 2 16-9/64 (1-39/64~2-13/32) Installation plate Indoor unit external dimensions line Relative position between the indoor unit and the installation plate <Front View> 29-7/16 21-7/32 Left piping hole 8-5/8 6-21/32 20-15/16 Right piping hole 5-1/16 9-17/32 5-1/16 9-17/32 10-3/8 5/8 Unit: inch 14 5.2 Outdoor Unit 5.2.1 CU-E9RKUA CU-E12RKUA Space necessary for installation 3-7/8 3-7/8 39-3/8 <Top View> 1 (4-1/8) Anchor Bolt Pitch 12-5/8 x 22-1/2 30-23/32 22-1/2 <Side View> <Front View> 1-3/8 2-5/8 4-1/8 2-3/8 3-3/8 6-1/8 2-way valve at Liquid side (High Pressure) 3-way valve at Gas side (Low Pressure) <Side View> 1/2 11-13/32 (2-3/4) (2-3/8) (3/4) 21-9/32 Unit : inch 5.2.2 CU-E18RKUA CU-E24RKUA Space necessary for installation 3-7/8 3-7/8 39-3/8 <Top View> 1-5/64 (5-5/32) Anchor Bolt Pitch 15-5/64 x 24-7/64 34-15/32 24-1/8 <Side View> <Front View> 2-3/4 5-5/32 3-7/32 5-31/32 14-3/16 1-1/2 <Side View> 2-5/16 12-5/8 2-3/4 2-61/64 (31/32) 31-5/16 Unit: inch 2-17/32 15 6. Refrigeration Cycle Diagram 6.1 CU-E9RKUA CU-E12RKUA INDOOR INTAKE TEMP. SENSOR PIPE TEMP. SENSOR LIQUID SIDE 2-WAY VALVE OUTDOOR DISCHARGE MUFFLER EXPANSION VALVE STRAINER INTAKE TEMP. SENSOR PIPE TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) COOLING HEATING HEAT EXCHANGER (CONDENSER) GAS SIDE 3-WAY VALVE 4-WAY VALVE COMPRESSOR TEMP. SENSOR COMPRESSOR 16 6.2 CU-E18RKUA CU-E24RKUA INDOOR OUTDOOR INTAKE TEMP. SENSOR PIPE TEMP. SENSOR 1 PIPE TEMP. SENSOR 2 LIQUID SIDE RECEIVER EXPANSION VALVE STRAINER 2-WAY VALVE INTAKE TEMP. SENSOR PIPE TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) HEAT EXCHANGER (CONDENSER) COOLING HEATING GAS SIDE 3-WAY VALVE 4-WAY VALVE DISCHARGE MUFFLER COMPRESSOR DISC. SENSOR COMPRESSOR 17 7. Block Diagram 7.1 CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA 18 7.2 CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA 19 8. Wiring Connection Diagram 8.1 Indoor Unit 8.1.1 CS-E9RKUAW CS-E12RKUAW TERMINAL BOARD BL 1 2 3 R TO TEMP. W OUTDOOR FUSE UNIT 102°C (3A) AC306 (BLK) FUSE301 T3.15A L250V AUTO SW (SW01) AC303 (WHT) AC304 (RED) NOISE FILTER CIRCUIT GROUNDING TERMINAL Y/G G G301 (GRN) COMMUNICATION CIRCUIT EVAPORATOR RECTIFICATION CIRCUIT FAN MOTOR ELECTRONIC M Y B W BL 7 6 5 CONTROLLER (MAIN) R 4 1 CNFM (WHT) 1 CNDISP (YLW) 12 WW WW W W W W W 11 CNDISP (WHT) 1 ELECTRONIC CONTROLLER (DISPLAY & RECEIVER) REMOTE CONTROLLER CNMSENS (WHT) CNMSENS (WHT) ELECTRONIC CONTROLLER (COMPARATOR) CNSENS1 (WHT) CNSENS1 (YLW) CNTH (RED) CNSTM1 (WHT) CNRMT (WHT) 4 1 1 BR R O Y 5 P REMARKS B : BLUE P : PINK BR : BROWN O : ORANGE BL : BLACK Y : YELLOW W : WHITE G : GREEN R : RED Y/G : YELLOW/GREEN 1 M UP DOWN LOUVER MOTOR 5 6 t t 1 t PIPING TEMP. SENSOR 2 (THERMISTOR) PIPING TEMP. SENSOR 1 (THERMISTOR) SUCTION TEMP. SENSOR (THERMISTOR) 3 W W 1 1W 8 1 W W 1 3W3 ELECTRONIC CONTROLLER (ECO SENSOR) 20 8.1.2 CS-E18RKUAW CS-E24RKUAW TERMINAL BOARD 1 BL 2 3 R TO TEMP. W OUTDOOR FUSE UNIT 102°C (3A) AC306 (BLK) FUSE301 T3.15A L250V AUTO SW (SW01) AC303 (WHT) AC304 (RED) NOISE FILTER CIRCUIT GROUNDING TERMINAL Y/G EVAPORATOR G G301 (GRN) COMMUNICATION CIRCUIT RECTIFICATION CIRCUIT FAN MOTOR ELECTRONIC M Y B W BL 7 6 5 CONTROLLER (MAIN) R 4 1 CNFM (WHT) 1 CNDISP (YLW) 12 WWWW W W W W W 11 CNDISP (WHT) 1 ELECTRONIC CONTROLLER (DISPLAY & RECEIVER) REMOTE CONTROLLER CNMSENS (WHT) CNTH (RED) CNSTM2 CNSTM1 CNRMT (YLW) (WHT) (WHT) CNMSENS (WHT) ELECTRONIC CONTROLLER (COMPARATOR) CN-SENS1 (WHT) CNSENS1 (YLW) 4 1 1 BR R O Y 5 P 1 BR R O Y 5 P REMARKS B : BLUE P : PINK BR : BROWN O : ORANGE BL : BLACK Y : YELLOW W : WHITE G : GREEN R : RED Y/G : YELLOW/GREEN 1 M UP DOWN LOUVER MOTOR 5 1 M LEFT RIGHT LOUVER MOTOR 5 6 t t 1 t PIPING TEMP. SENSOR 2 (THERMISTOR) PIPING TEMP. SENSOR 1 (THERMISTOR) SUCTION TEMP. SENSOR (THERMISTOR) 3 W W 1 1W 8 1 W W 1 3W3 ELECTRONIC CONTROLLER (ECO SENSOR) 21 8.2 Outdoor Unit 8.2.1 CU-E9RKUA CU-E12RKUA 22 POWER SUPPLY TO INDOOR UNIT L1 L2 1 2 3 (BLACK) (BLACK) (RED) WHT RED TERMINAL BOARD REACTOR GRY GRY ELECTRONIC-MAGNETIC COIL (EXPANSION VALVE) M Resistance of Compressor Windings CONNECTION 5RS102XHA21 U-V 1.741 U-W 1.765 V-W 1.711 HEATER FUSE 102 T3.15A L250V GRN BLK REMARKS; BLK WHT BLACK; (BLK) BLUE; (BLU) WHITE; (WHT) RED; (RED) GRAY; (GRY) GRN GREEN; (GRN) BROWN; (BRW) ORANGE; (ORG) YELLOW/GREEN; (YLW/GRN) GRN DATA (RED) AC-BLK (BLK) FUSE 101 20A 250V COMMUNICATION CIRCUIT NOISE FILTER CIRCUIT AC-WHT (WHT) FG1 (GRN) LJP101 (GRN) 1 FAN MOTOR ORG ELECTRONIC CONTROLLER ORG RY-HT2 HT2 (ORG) ACL (BRW) 4 M 5 6 7 CN-DCFM 1 CN4 (BLK) 5 1 CN5 (BLK) 5 HT2 (ORG) RAT2 (GRY) RAT1 (GRY) 1 CN-STM 6 PFC CIRCUIT 1 CN-TH 2 3 4 RECTIFICATION CIRCUIT RECTIFICATION CIRCUIT 1 CN-TANK 3 AIR TEMP. SENSOR (THERMISTOR) t° t° PIPING TEMP. SENSOR (THERMISTOR) COMPRESSOR TEMP. SENSOR (THERMISTOR) t° CN-HOT 1 YLW 3 YLW ELECTRONIC-MAGNETIC COIL (4-WAY VALVE) FUSE 103 T3.15A l250v SWITCHING POWER SUPPLY CIRCUIT Q1 P N U (RED) V (BLU) W (YLW) RED BLU MS YLW 3~ COMPRESSOR YELLOW (YLW) BLUE (BLU) RED (RED) BRW ACL (BRW) ELECTRONIC CONTROLLER (TRADERMARK) COMPRESSOR TERMINAL THE PARENTHESIZED LETTERS IS INDICATED ON TERMINAL COVER. 8.2.2 CU-E18RKUA CU-E24RKUA 23 POWER SUPPLY TO INDOOR UNIT REACTOR YLW/GRN GRN GRN L1 L2 TERMINAL BOARD TERMINAL BOARD 1 BLK WHT WHT BLK 23 RED GRY 2 2 GRY BLK 1 1 BLK Resistance of Compressor Windings CONNECTION 5KD240XAF21 U-V 0.720 U-W V-W 0.726 0.708 YLW/GRN YELLOW (YLW) ACN1 (WHITE) ACL1 COM3 (BLACK) (RED) 1 FUSE3 CN-COM (25A, 250V) (YELLOW) COMMUNICATION CIRCUIT NOISE FILTER CIRCUIT FG1 (GREEN) ELECTRONIC CONTROLLER (NOISE FILTER) 4 CN-BLK (BLACK) CN-WHT (WHITE) 1 CN-FM1 (WHITE) 5 DC-FM1 (ORANGE) WHT WHT WHT WHT BLK WHT WHT WHT WHT WHT WHT ORG 1 CN-COM (YELLOW) L2-1 (GRAY) 4 AC-BLK (BLACK) FUSE2 (T 3.15A L 250V) AC-WHT (WHITE) 1 CN-FM1 (WHITE) 5 DC-FM1 (ORANGE) L2-0 (BLACK) RECTIFICATION CIRCUIT FUSE1 (T 2.5A L 250V) ELECTRONIC CONTROLLER (MAIN) PFC CIRCUIT Q10 (RED) U P U V (BLUE) V N W (YELLOW) W COMPRESSOR RED 3 3 RED BLU BLU MS YLW YLW 3~ 11 RECTIFICATION CIRCUIT SWITCHING POWER SUPPLY CIRCUIT RY-HT CN-HT (BLACK) 1 HEATER BLUE (BLU) RED (RED) (TRADEMARK) COMP. TERMINAL THE PARENTHESIZED LETTERS IS INDICATED ON TERMINAL COVER 14 CN-DCFM 7 (WHITE) YLW 7 BLU WHT BLK 4 RED 1 DC-FMG YLW DC-FMG (YELLOW) (YELLOW) 3 7 FAN MOTOR CN-EV (WHITE) 6 1 RY-HOT 1 CN-HOT (BLUE) 3 CN-DIS (WHITE) 2 1 CN-TH1 (WHITE) 4 1 M BLU M t° 4 ELECTRO-MAGNETIC ELECTRO-MAGNETIC t° t° PIPING TEMP. SENSOR (THERMISTOR) OUTDOOR AIR TEMP. SENSOR (THERMISTOR) 1 COIL COIL (4-WAY VALVE) (EXPANSION VALVE) DISCHARGE TEMP. SENSOR (THERMISTOR) 9. Electronic Circuit Diagram 9.1 Indoor Unit 9.1.1 CS-E9RKUAW CS-E12RKUAW TERMINAL BOARD 1 BL 2 3 R TO TEMP. OUTDOOR FUSE W UNIT 102°C (3A) AC306 (BLK) FUSE301 T3.15A L250V AUTO SW (SW01) AC303 (WHT) AC304 (RED) NOISE FILTER CIRCUIT GROUNDING TERMINAL Y/G EVAPORATOR G G301 (GRN) COMMUNICATION CIRCUIT RECTIFICATION CIRCUIT FAN MOTOR ELECTRONIC M Y B W BL 7 6 5 CONTROLLER (MAIN) R 4 R62 15.0k 1 CNFM (WHT) 5V *R54 *R37 270 10k 5V *C45 0.1u 4 12V VCC 1 9 IC03 16 2 IC03 15 3 IC03 14 4 IC03 13 *C49 1 NONE CNRMT (WHT) CNSTM1 12V (WHT) 1 5 12 IC03 5 6 IC03 11 5V 7 IC03 10 R47 R46 6 8 GND C25 R61 1u 20.0k C27 1u *R63 1 CNTH *C28 (RED) 5V 5V R89 CNDISP (YLW) 1 *R74 *R75 *C41 C3 0.1u 12 3 1 CNMSENS (WHT) ELECTRONIC CONTROLLER 5V_ (DISPLAY & RECEIVER) IC201 R209 47 Vout 1 Vcc 2 GND 3 WW WW W W W W W CNDISP (WHT) 11 1 12V BZ201 BZ REMOTE CONTROLLER AUTO HEAT COOL DRY FAN FAN SPEED A IR SW ING GND GND 45 + C201 47u C202 0.01u c R218 0 POWER (green) LED201 R201 470 TIMER R202 2k (orange) LED202 ECO NAVI (green) LED203 R203 27k R215 0 OFF/ON AUTO ECONAVI CO M FO RT MODE TEMP AIR SWING POW ERFUL/ QUIET FAN SPEED TIMER ON SET 1 2 3 OFF CANCEL AC RC SET CHECK CLOCK RESET SEN201 e NANOE G/AUTO COMF R204 820 R210 JP201 (green) PCB3 LED204 5V_ R211 JP200 R216 0 Q201 e 10k b R212 JP203 R213 JP204 R208 LED205 3 2 1 R207 620 R206 2.7k R217 0 4.7k c 5V_ Q202 e 10k b GND-A POWERFUL/QUIET (orange/green) 4.7k c BR R O 1 M UP DOWN Y LOUVER MOTOR P 5 PIPING TEMP. SENSOR 2 t (THERMISTOR) PIPING TEMP. SENSOR 1 t (THERMISTOR) t SUCTION TEMP. SENSOR (THERMISTOR) W CNMSENS 5V_3 (WHT) 1 ELECTRONIC CONTROLLER (COMPARATOR) W R401 W R402 8 5V_3 R403 6 7 IC401 5 C403 1 8 IC401 2 3 4 1 W W 1 3W3 CNSENS1 (WHT) CNSENS1 (YLW) ELECTRONIC CONTROLLER (ECO SENSOR) 24 9.1.2 CS-E18RKUAW CS-E24RKUAW TERMINAL BOARD 1 BL 2 3 R TO TEMP. OUTDOOR FUSE W UNIT 102°C (3A) AC306 (BLK) FUSE301 T3.15A L250V AUTO SW (SW01) AC303 (WHT) AC304 (RED) NOISE FILTER CIRCUIT GROUNDING TERMINAL Y/G EVAPORATOR G G301 (GRN) COMMUNICATION CIRCUIT RECTIFICATION CIRCUIT FAN MOTOR ELECTRONIC M Y B W BL 7 6 5 CONTROLLER (MAIN) R 4 R62 15.0k 1 CNFM (WHT) 5V *R54 *R37 270 10k 5V *C45 0.1u 4 12V VCC 1 9 IC03 16 2 IC03 15 3 IC03 14 4 IC03 13 *C49 1 NONE CNRMT (WHT) CNSTM1 12V (WHT) 1 5 IC03 12 5 6 IC03 11 5V 7 IC03 10 R47 R46 6 8 GND C25 R61 1u 20.0k C27 1u *R63 1 CNTH *C28 (RED) 5V 5V R89 CNDISP (YLW) 1 *R74 *R75 *C41 C3 0.1u 12 3 1 CNMSENS (WHT) ELECTRONIC CONTROLLER 5V_ (DISPLAY & RECEIVER) IC201 R209 47 Vout 1 Vcc 2 GND 3 WW WW W W W W W CNDISP (WHT) 11 1 12V BZ201 BZ REMOTE CONTROLLER AUTO HEAT COOL DRY FAN FAN SPEED A IR SW IN G GND GND 45 + C201 47u C202 0.01u c R218 0 POWER (green) LED201 R201 470 TIMER R202 2k (orange) LED202 ECO NAVI (green) LED203 R203 27k R215 0 OFF/ON AUTO ECONAVI COM FO RT MODE TEMP AIR SWING PO W ER FU L/ QUIET FAN SPEED TIMER ON SET 1 2 3 OFF CANCEL AC RC SET CHECK CLOCK RESET SEN201 e NANOE G/AUTO COMF R204 820 R210 JP201 (green) PCB3 LED204 5V_ R211 JP200 R216 0 Q201 e 10k b R212 JP203 R213 JP204 R208 LED205 3 2 1 R207 620 R206 2.7k R217 0 4.7k c 5V_ Q202 e b 10k GND-A POWERFUL/QUIET (orange/green) 4.7k c BR R O 1 M UP DOWN Y LOUVER MOTOR P 5 PIPING TEMP. SENSOR 2 t (THERMISTOR) PIPING TEMP. SENSOR 1 t (THERMISTOR) t SUCTION TEMP. SENSOR (THERMISTOR) W CNMSENS 5V_3 (WHT) 1 ELECTRONIC CONTROLLER (COMPARATOR) W R401 W R402 8 5V_3 R403 6 7 IC401 5 1 W W 1 3W3 C403 1 8 IC401 2 3 4 CNSENS1 (WHT) CNSENS1 (YLW) ELECTRONIC CONTROLLER (ECO SENSOR) 25 9.2 Outdoor Unit 9.2.1 CU-E9RKUA CU-E12RKUA 26 POWER SUPPLY TO INDOOR UNIT L1 L2 1 2 3 (BLACK) (BLACK) (RED) TERMINAL BOARD REACTOR ELECTRONIC-MAGNETIC COIL (EXPANSION VALVE) M HEATER FUSE 102 T3.15A L250V D29 D28 D27 D26 WHT RED GRY GRY GRN BLK BLK WHT GRN DATA (RED) AC-BLK (BLK) FUSE 101 20A 250V AC-WHT (WHT) COMMUNICATION CIRCUIT NOISE FILTER CIRCUIT FG1 (GRN) GRN LJP101 (GRN) 1 FAN M MOTOR 4 5 6 7 CN-DCFM ORG ELECTRONIC 5V 5V HT2 (ORG) CONTROLLER R130 R129 1k CN4 (BLK) 1 1 CN-HT1 1k R118 2 2 1 9 16 R116 3 3 13V 4 4 RY-HT1 IC 1 2 2 15 5 5 IC 1 2 3 14 IC 1 2 4 13 IC 1 2 5 12 IC 1 2 6 11 IC 1 2 7 10 IC 1 2 13_1V CN5 (BLK) 1 CN-HT2 1 ORG 8 RY-HT2 2 2 3 3 4 4 RY-HT2 HT2 (ORG) 5 5 RAT2 (GRY) RAT1 (GRY) CN-STM 1 2 3 4 5 6 13V 5V PFC CIRCUIT RECTIFICATION CIRCUIT RECTIFICATION CIRCUIT FUSE 103 T3.15A l250v Q1 P N U (RED) V (BLU) W (YLW) C80 R11 15.8k C6 1 C3 1 R12 CN-TH 15.0k (WHT) 1 C7 1 2 3 4 CN-TANK 5V (WHT) 1 3 R1 4.99k CN-HOT (WHT) 1 D19 3 AIR TEMP. SENSOR (THERMISTOR) t° t° PIPING TEMP. SENSOR (THERMISTOR) COMPRESSOR TEMP. SENSOR (THERMISTOR) t° YLW ELECTRONIC-MAGNETIC COIL (4-WAY VALVE) YLW RED BLU MS YLW 3~ SWITCHING POWER SUPPLY CIRCUIT ELECTRONIC CONTROLLER COMPRESSOR ACL (BRW) BRW ACL (BRW) 9.2.2 CU-E18RKUA CU-E24RKUA 27 POWER SUPPLY TO INDOOR UNIT REACTOR YLW/GRN GRN GRN YLW/GRN L1 L2 TERMINAL BOARD TERMINAL BOARD 1 2 3 BLK WHT WHT BLK RED ACN1 (WHITE) ACL1 (BLACK) COM3 (RED) 5V CN-COM (YELLOW) FUSE3 (25A, 250V) COMMUNICATION CIRCUIT c Q25 4.7k b 10k e 1 2 3 4 CN-BLK (BLACK) NOISE FILTER CIRCUIT CN-WHT (WHITE) FG1 (GREEN) 5V CN-FM1 (WHITE) 1 2 ELECTRONIC CONTROLLER (NOISE FILTER) 15V_2 3 4 5 DC-FM1 (ORANGE) WHT WHT WHT WHT BLK WHT WHT WHT WHT WHT WHT ORG GRY BLK 2 2 GRY 1 1 BLK CN-COM 5V (YELLOW) 1 2 3 4 L2-1 (GRAY) L2-0 (BLACK) AC-BLK (BLACK) FUSE2 (T 3.15A L 250V) RECTIFICATION CIRCUIT AC-WHT (WHITE) CN-FM1 5V (WHITE) 1 2 3 C209 15V_2 4 5 + C259 C260 DC-FM1 (ORANGE) FUSE1 (T 2.5A L 250V) RECTIFICATION CIRCUIT ELECTRONIC CONTROLLER (MAIN) PFC CIRCUIT Q10 P N COMPRESSOR (RED) U RED 3 3 RED U V (BLUE) V BLU W (YELLOW) W YLW BLU MS YLW 3 ~ 11 SWITCHING POWER SUPPLY CIRCUIT RY-HT CN-HT (BLACK) 1 HEATER 3 14 CN-DCFM 7 (WHITE) YLW 7 BLU WHT BLK 4 RED 1 7 FAN MOTOR M 4 1 DC-FMG YLW DC-FMG (YELLOW) (YELLOW) 5V 5V *D36 *D35 *D34 13V *D33 RY-HOT C47 R102 C212 1 4.99k 1 R101 15.8k C251 220 C46 1 R100 15.0k C45 1 *C84 65 43 2 1 CN-EV (WHITE) M 1 3 CN-HOT BLU (BLUE) ELECTRO-MAGNETIC ELECTRO-MAGNETIC COIL COIL (4-WAY VALVE) (EXPANSION VALVE) 21 CN-DIS (WHITE) t° 4 3 21 CN-TH1 (WHITE) t° t° PIPING TEMP. SENSOR (THERMISTOR) OUTDOOR AIR TEMP. SENSOR (THERMISTOR) DISCHARGE TEMP. SENSOR (THERMISTOR) 10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board 10.1.2 JP1 (Random Auto Restart enable/disable) Indicator Printed Circuit Board CN-FM CN-RMT CN-STM2 (E18/24RKUAW only) CN-STM1 CN-MSENS CN-DISP CN-TH CN-DISP 28 10.1.3 Comparator Printed Circuit Board CN-SENS1 CN-MSENS CN-SENS2 29 10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board 10.2.1.1 CU-E9RKUA CU-E12RKUA FG1 CN-DCFM CN5 CN4 CN-STM CN-TANK CN-TH CN-HOT AC-BLK AC-WHT DATA CURRENT TRANSFORMER (CT) POWER TRANSISTOR (IPM) 30 10.2.1.2 CU-E18RKUA CU-E24RKUA CN-TH1 CN-EV CN-DIS CN-HT CN-HOT AC-BLK AC-WHT CURRENT TRANSFORMER (CT) DC-FMG CN-S CN-COM CN-FM1 DC-FM1 POWER TRANSISTOR (IPM) 31 10.2.2 Noise Filter Printed Circuit Board 10.2.2.1 CU-E18RKUA CU-E24RKUA 32 11. Installation Instruction (E9RK and E12RK) 11.1 Select the Best Location 11.1.1 Indoor Unit Do not install the unit in excessive oil fume area such as kitchen, workshop and etc. There should not be any heat source or steam near the unit. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where noise prevention is taken into consideration. Do not install the unit near the door way. Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. Recommended installation height for indoor unit shall be at least 8 ft (2.4 m). 11.1.2 Outdoor Unit If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. There should not be any animal or plant which could be affected by hot air discharged. Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles. Do not place any obstacles which may cause a short circuit of the discharged air. If piping length is over the [piping length for additional gas], additional refrigerant should be added as shown in the table. Recommended installation height for outdoor unit should be above the seasonal snow level. Model Capacity (Btu/h) Piping size Gas Liquid Std. Length Min. Max. Piping Elevation Length Max. Piping Length Additional Refrigerant Piping Length for add. gas E9RKUAW E12RKUAW 9000 11500 3/8" (9.52 mm) 1/4" 24.6 ft 1/2" (6.35 mm) (7.5 m) (12.7 mm) 49.2 ft (15 m) 9.8 ft 65.6 ft (3 m) (20 m) 0.2 oz/ft (20 g/m) 24.6 ft (7.5 m) Example: For E9RKUAW If the unit is installed at 32.8 ft (10 m) distance, the quantity of additional refrigerant should be 1.64 oz (50 g) .... (32.8 - 24.6) ft x 0.2 oz/ft = 1.64 oz. ((10 -7.5) m x 20 g/m = 50 g). 11.1.3 Indoor/Outdoor Unit Installation Diagram Piping direction Do not bend up (Front side) drain hose Right Rear Right Left Left bottom Rear Left bottom Installation parts you should purchase () 2 9/16" (65 mm) or more 1 31/32" (50 mm) or more (Left and right are identical) Floor / Grade level Insulation of piping connections · Carry out insulation after checking for gas leaks and secure with vinyl tape. Vinyl tape Attaching the remote control holder to the wall Remote control holder fixing screws 6 Remote control 3 Remote control holder 5 It is advisable to avoid more than 2 blockage directions. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist. o(1r 03m0o1m5re/1m6)" (319030o/0r8m"momre) · This illustration is for explanation purposes only. The indoor unit will actually face a different way. o(r103m0o1r5me/1m6)" 8 ft (2.4 m) or more Installation plate 1 Bushing-Sleeve () Sleeve () Putty () (Gum Type Sealer) Bend the pipe as closely on the wall as possible, but be careful that it doesn't break. Vinyl tape (wide) () · Apply after carrying out a drainage test. · To carry out the drainage test, remove the air filters and pour water into the heat exchanger. Saddle () o(r3m0101orm1e3m/1)6" Conduit (Power supply cord ()) Conduit (Connection cable) Liquid side piping () Gas side piping () Additional drain hose () Control Board cover 33 11.2 Indoor Unit 11.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from the vibration. Wall More than 1 Wall Wall More than 1 Indoor unit 2 screw More than 2 3 4 Measuring Tape 9 17/32" (241.5 mm) 5 1/16" (128 mm) 5 1/16" (128 mm) 6 5 Installation plate 1 For best strength of INDOOR unit installation, it is highly recommended to locate " " at 5 position as shown. 9 17/32" (241.5 mm) 5 1/16" (128 mm) Model E9RKUAW, E12RKUAW or Dimension 1 2 3 4 5 6 19 9/32" 3 7/32" 17 9/32" 17" 1 11/16" 3 3/4" (490 mm) (82 mm) (439 mm) (432 mm) (43 mm) (95 mm) The center of installation plate should be at more than at right and left of the wall. The distance from installation plate edge to ceiling should more than . From installation plate left edge to unit's left side is . From installation plate right edge to unit's right side is . B : For left side piping, piping connection for liquid should be about from this line. : For left side piping, piping connection for gas should be about from this line. 1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws). (If mounting the unit on the concrete wall, consider using anchor bolts.) o Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge. 2 Drill the piping plate hole with ø2 3/4" (ø70 mm) hole-core drill. o Line according to the left and right side of the installation plate. The meeting point of the extended line is the center of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole center is obtained by measuring the distance namely 5 1/16" (128 mm) for left and right hole respectively. o Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor side. 11.2.2 To Drill a Hole in the Wall and Install a Sleeve of Piping 1 Insert the piping sleeve to the hole. 2 Fix the bushing to the sleeve. 3 Cut the sleeve until it extrudes about 19/32" (15 mm) from the wall. CAUTION When the wall is hollow, please be sure to use the sleeve for tube assembly to prevent dangers caused by mice biting the connection cable. Indoor Wall Outdoor Sleeve for tube assembly 19/32" (15 mm) Approx. 7/32" - 9/32" (5-7 mm) 4 Finish by sealing the sleeve with putty or caulking compound at the final stage. ø2 3/4" (ø70 mm) through hole Bushing for tube assembly Putty or caulking compound 34 11.2.3 Indoor Unit Installation Do not turn over the unit without it's shock absorber during pull out the piping. It may cause intake grille damage. Use shock absorber during pull out the piping to protect the intake grille from damage. pull out the piping Piping pull out the piping Piping PUSH PUSH PUSH PUSH Intake grille 11.2.3.1 For the right rear piping Step-1 Pull out the Indoor piping Step-2 Install the Indoor Unit Step-3 Secure the Indoor Unit Step-4 Insert the connection cable 11.2.3.2 For the right bottom piping Step-1 Pull out the Indoor piping Step-2 Install the Indoor Unit Step-3 Insert the connection cable Step-4 Secure the Indoor Unit 11.2.3.3 For the embedded piping Step-1 Replace the drain hose Step-2 Bend the embedded piping · Use a spring bender or equivalent to bend the piping so that the piping is not crushed. Step-3 Pull the connection cable into Indoor Unit · The inside and outside connection cable can be connected without removing the front grille. Step-4 Cut and flare the embedded piping · When determining the dimensions of the piping, slide the unit all the way to the left on the installation plate. · Refer to the section "Cutting and flaring the piping". Step-5 Install the Indoor Unit Step-6 Connect the piping · Please refer to "Connecting the piping" column in outdoor unit section. (Below steps are done after connecting the outdoor piping and gas-leakage confirmation.) Step-7 Insulate and finish the piping · Please refer to "Insulation of piping connection" column as mentioned in indoor/outdoor unit installation. Step-8 Secure the Indoor Unit Shock absorber Right Rear piping Tape it with piping in a position as mentioned in Fig. below. Piping Drain hose Cover for the bottom piping How to keep the cover In case of the cover is cut, keep the cover at the rear of chassis as shown in the illustration for future reinstallation. (Left and 2 bottom covers for piping.) Cover Cover for the for the bottom piping left piping Cover for piping Right and Right Bottom piping Tape it with piping in a position as mentioned in Fig. below. Piping Drain hose Cover for the right piping Cover for Cover for the the left bottom piping piping Install the indoor unit Hook the indoor unit onto the upper portion of installation plate. (Engage the indoor unit with the upper edge of the installation plate). Ensure the hooks are properly seated on the installation plate by moving it in left and right. Secure the Indoor Unit 1. Press the lower left and right side of the unit against the installation plate until hooks engages with their slot (sound click). Indoor unit Unit's hook Hooks at installation plate Sleeve for piping hole Piping Drain hose Installation plate marking To take out the unit, push the marking at the bottom unit, and pull it slightly towards you to disengage the hooks from the unit. Insert the connection cable (720-38/40"m- 3mAb)5/o32u"t Guide surface Connection cable Connection cable Gas side piping Liquid side piping Drain hose (This can be used for left rear piping and bottom piping also.) 35 Replace the drain hose Rear view for left piping installation Drain cap Drain hose Drain hose Connection cable Adjust the piping slightly downwards. · How to pull the piping and drain hose out, in case of embedded piping. Apply putty or caulking material to seal the wall opening. M3o7re13th/3a2n" (950 mm) Connection cable Piping More than 27 9/16" (700 mm) PVC tube for drain hose (VP-20) 18M1/o2r"e(t4h7a0n mm) Drain hose from main unit PVC tube (VP-65) for piping and connection cable PVC tube for drain hose (VP-30) PVC tube for drain hose Cable Piping Indoor unit 3 15/16" (100 mm) Drain hose adapter 9 usage · Join indoor drain hose to 3/4" (20 mm) nominal PVC pipe size by using drain hose adapter 9 when necessary. Remarks : Make sure indoor unit drain hose & 3/4" (20 mm) nominal PVC pipe are fully inserted to drain hose adapter 9. Piping Drain hose Connection cable More than 37 13/32" (950 mm) Sleeve for piping hole · How to insert the connection cable and drain hose in the case of left piping. 45° Drain hose Cable Piping (For right piping, follow the same procedure) Indoor unit drain hose Close join by Vinyl Tape ( ) Drain hose adapter 9 11.2.4 Connect the Cable to the Indoor Unit 1. The inside and outside connection cable can be connected without removing the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassis. 3. Connection cable between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. 4. Connection cable between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. o Ensure the colour of wires of outdoor unit and terminal number are the same as the indoor's repectively. Terminals on the indoor unit 1 Colour of wires (connection cable) Terminals on the outdoor unit 1 23 23 WARNING This equipment must be properly earthed. 3/4" (20 mm) nominal PVC pipe - Install incline downward more than 1° - Apply PVC glue at the join. o Earth lead wire shall be Yellow/Green (Y/G) in colour and shall be longer than other lead wires as shown in the figure for electrical safety in case of the slipping. Conduit Connector Lock Nut Conduit Cover Chassis Rear Side of Indoor Unit Terminal Board 123 Indoor and outdoor connection cable Earth Wire longer than others AC wires for safety reason Holder 36 11.2.5 Wiring Stripping and connecting requirement Wire stripping 13/32" ± 1/16" (10±1 mm) No loose strand when inserted WARNING RISK OF FIRE JOINING OF WIRES MAY CAUSE OVERHEATING AND FIRE. Do not joint wires Indoor/outdoor connection terminal board 7/32" (5 mm) or more (gap between wires) Conductor Conductor Conductor not fully inserted over inserted fully inserted ACCEPT PROHIBITED PROHIBITED OR OR OR Use complete wire without joining. Use approved socket and plug with earth pin. Wire connection in this area must follow to national wiring rules. 11.2.5.1 Cutting and flaring the piping 1 Please cut using pipe cutter and then remove the burrs. 2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3 Please make flare after inserting the flare nut onto the copper pipes. 1. To cut Improper flaring Pipe Reamer Handle Bar Yoke Core 0 1/32" (0-0.5 mm) Bar Inclined Surface Cracked Uneven damaged thickness Point down 2. To remove burrs Clamp handle Red arrow mark 3. To flare Copper pipe When properly flared, the internal surface of the flare will evenly shine and be of even thickness. Since the flare part comes into contact with the connections, carefully check the flare finish. 37 11.3 Outdoor Unit 11.3.1 Install the Outdoor Unit After selecting the best location, start installation according to indoor/outdoor unit installation diagram. 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø13/32" (ø10 mm)). 2 When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. A B C D Model A B C D E9RKUA, E12RKUA 22-7/16" (570 mm) 4-1/8" 23/32" (105 mm) (18.5 mm) 12-19/32" (320 mm) 11.3.2 Connect the Piping 11.3.2.1 Connecting the piping to indoor Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers. Further tighten the flare nut with torque wrench in specified torque as stated in the table. 11.3.2.2 Connecting the piping to outdoor Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table. Do not over tighten, over tightening may cause gas leakage. Piping size Torque 1/4" (6.35 mm) 13.3 Ibf.ft [18 N·m (1.8 kgf·m)] 3/8" (9.52 mm) 31.0 Ibf.ft [42 N·m (4.3 kgf·m)] 1/2" (12.7 mm) 40.6 Ibf.ft [55 N·m (5.6 kgf·m)] 5/8" (15.88 mm) 47.9 Ibf.ft [65 N·m (6.6 kgf·m)] 3/4" (19.05 mm) 73.8 Ibf.ft [100 N·m (10.2 kgf·m)] Spanner or Wrench Torque wrench 38 11.3.2.3 Connecting the piping to outdoor multi Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table. Male side Hall Union (Auxiliary pipe) Wrench (Adjustable Wrench) Hall Union Male side (Auxiliary pipe) Wrench (Adjustable Wrench) Torque Wrench for Flare Nut and Pipe Size Reducer Flare Nut Female side Applicable to (Connection pipe) Liquid and Gas side of CS-E9RKUAW Torque Wrench for Flare Nut Liquid side of CS-E12RKUAW Packing Pipe Size Reducer Flare Nut Female side (Connection pipe) Applicable to Gas side of CS-E12RKUAW 11.3.2.4 Gas Leak Checking Pressure test to system to 400 PSIG with dry nitrogen, in stages. Thoroughly leak check the system. If the pressure holds, release the nitrogen and proceed to section 11.3.3. 11.3.3 Evacuation of the equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedures. Vacuum pump Indoor unit Liquid side Two-way valve Outdoor unit Gas side Close OPEN Lo Hi Three-way valve Close CLOSE 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. 2. Connect the micron gauge between vacuum pump and service port of outdoor units. 3. Turn on the power switch of the vacuum pump and make sure that connect digital micron gauge and to pull down to a value of 500 microns. 4. To make sure micron gauge a value 500 microns and close the low side valve of the charging set and turn off the vacuum pump. 5. Disconnect the vacuum pump house from the service port of the 3-way valve. 6. Tighten the service port caps of the 3-way valve at a torque of 13.3 Ibf.ft (18 N·m) with a torque wrench. 7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to "Open" using a hexagonal wrench (5/32" (4 mm)). 8. Mount valve caps onto the 2-way valve and the 3-way valve. o Be sure to check for gas leakage. · If micron gauge value does not descend 500 microns, take the following measures: - If the leak stops when the piping connections are tightened further, continue working from step 3. - If the leak does not stop when the connections are retightened, repair location of leak. - Do not release refrigerant during piping work for installation and reinstallation. - Be careful with the liquid refrigerant, it may cause frostbite. 39 11.3.3.1 Connect the Cable to the Outdoor Unit 1. Remove Top panel. 2. Remove Control Board Cover (Resin and Metal). 3. Remove Plugs. 4. Fix the conduit connectors to the knockout holes with lock-nuts, then secure them against the side panel. 5. All wires pass through conduits. 6. Connection cable between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. 7. Wire connection to the power supply (208/230V 60Hz) through circuit breaker. o Connect the UL listed or CSA approved wires minimum AWG14 to the terminal board, and connect the other end of the wires to ELCB / GFCI. 8. Connect the power supply cord and connection cable between indoor unit and outdoor unit according to the diagram below. Control Board Metal Cover Control Board Cover (Resin) Indoor Unit Terminal 1 2 3 208/230V min AWG16 208/230V min AWG16 208/230V min AWG16 Grounding wire min AWG16 * Ensure all connecting wire between indoor unit and outdoor unit and power supply cord are installed in individual conduit. Outdoor Unit Terminal 1 2 3 Disconnect Switch Field supply L1 L2 Grounding wire Top Panel Power Supply Wires Lock Nuts Knockout Holes Plugs Connectors Side Panel Power Supply Single Phase 208/230V 60Hz min AWG14 9. Secure the wire onto the control board with the holder (clamper). 10. After completing wiring connections, reattach the control board cover (Metal and Resin) and the top panel to the original position with the screws. 11. For wire stripping and connection requirement, refer to instruction 11.2.5 of indoor unit. WARNING This equipment must be properly earthed. Earth lead wire shall be Yellow/Green (Y/G) in colour and shall be longer than other lead wires as shown in the figure for electrical safety in case of the slipping. Earth wire longer than others AC wires for safety reason L1 L2 1 2 3 Terminal Board Earth wire longer than others AC wires for safety reason Holder Power supply cord Indoor & outdoor connection cable 11.3.3.2 Piping Insulation 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 1/4" (6 mm) or above. 40 12. Installation Instruction (E18RK and E24RK) 12.1 Select the Best Location 12.1.1 Indoor Unit Do not install the unit in excessive oil fume area such as kitchen, workshop and etc. There should not be any heat source or steam near the unit. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where noise prevention is taken into consideration. Do not install the unit near the door way. Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. Recommended installation height for indoor unit shall be at least 8 ft (2.4 m). 12.1.2 Outdoor Unit If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. There should not be any animal or plant which could be affected by hot air discharged. Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles. Do not place any obstacles which may cause a short circuit of the discharged air. If piping length is over the [piping length for additional gas], additional refrigerant should be added as shown in the table. Recommended installation height for outdoor unit should be above the seasonal snow level. Model Capacity (Btu/h) Piping size Gas Liquid Std. Length Max. Elevation Min. Piping Length Max. Piping Length Piping Additional Length Refrigerant for add. gas E18RKUA E24RKUA 17200 24000 1/2" (12.7 mm) 1/4" 5/8" (6.35 mm) (15.88 mm) 24.6 ft (7.5 m) 49.2 ft (15 m) 9.8 ft 100.0 ft 0.3 oz/ft 32.8 ft (3 m) (30.5 m) (25 g/m) (10 m) Example: For E18RKUA If the unit is installed at 41 ft (12.5 m) distance, the quantity of additional refrigerant should be 2.46 oz (62.5 g) .... (41 - 32.8) ft x 0.3 oz/ft = 2.46 oz. ((12.5 - 10) m x 25 g/m = 62.5 g). 12.1.3 Indoor/Outdoor Unit Installation Diagram Piping direction Attention not to bend (Front side) up drain hose Right Rear Right Left Left bottom Rear Left bottom Installation parts you should purchase () 2 9/16" (65 mm) or more 1 31/32" (50 mm) or more (Left and right are identical) Floor / Grade level Insulation of piping connections · Carry out insulation after checking for gas leaks and secure with vinyl tape. Vinyl tape Attaching the remote control holder to the wall Remote control holder fixing screws 6 Remote control 3 Remote control holder 5 It is advisable to avoid more than 2 blockage directions. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist. o(r10m30o1mr5e/m16)" (319030o/08r"mmmor)e · This illustration is for explanation purposes only. The indoor unit will actually face a different way. 8 ft (2.4 m) or more o(r103m0o1r5m/e1m6)" Installation plate 1 Bushing-Sleeve () Sleeve () Putty () (Gum Type Sealer) Bend the pipe as closely on the wall as possible, but be careful that it doesn't break. Vinyl tape (wide) () · Apply after carrying out a drainage test. · To carry out the drainage test, remove the air filters and pour water into the heat exchanger. Saddle () Conduit (Power supply cord ()) o(r3m0101orm1e3m/1)6" Conduit (Connection cable) Liquid side piping () Gas side piping () Additional drain hose Control Board cover 41 12.2 Indoor Unit 12.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from the vibration. Wall More than 1 Wall More than 1 Wall Indoor unit 2 screw More than 2 3 4 Measuring Tape 9 17/32" (241.5 mm) 5 1/16" (128 mm) 5 1/16" (128 mm) 6 5 Installation plate 1 For best strength of INDOOR unit installation, it is highly recommended to locate " " at 5 position as shown. 9 17/32" (241.5 mm) 5 1/16" (128 mm) Model E18RKUA, E24RKUA 1 23 7/32" (590 mm) 2 3 7/32" (82 mm) Dimension 3 4 21 7/32" 20 15/16" (539 mm) (532 mm) 5 6 21/32" (169 mm) 6 8 5/8" (219 mm) The center of installation plate should be at more than at right and left of the wall. The distance from installation plate edge to ceiling should more than . From installation plate left edge to unit's left side is . From installation plate right edge to unit's right side is . B : For left side piping, piping connection for liquid should be about from this line. : For left side piping, piping connection for gas should be about from this line. 1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws). (If mounting the unit on the concrete wall, consider using anchor bolts.) o Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge. 2 Drill the piping plate hole with ø2 3/4" (ø70 mm) hole-core drill. o Line according to the left and right side of the installation plate. The meeting point of the extended line is the center of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole center is obtained by measuring the distance namely 5 1/16" (128 mm) for left and right hole respectively. o Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor side. 12.2.2 To Drill a Hole in the Wall and Install a Sleeve of Piping 1 Insert the piping sleeve to the hole. 2 Fix the bushing to the sleeve. 3 Cut the sleeve until it extrudes about 19/32" (15 mm) from the wall. CAUTION When the wall is hollow, please be sure to use the sleeve for tube assembly to prevent dangers caused by mice biting the connection cable. Indoor Wall Outdoor Sleeve for tube assembly 19/32" (15 mm) Approx. 7/32" - 9/32" (5 - 7 mm) 4 Finish by sealing the sleeve with putty or caulking compound at the final stage. ø2 3/4" (ø70 mm) through hole Bushing for tube assembly Putty or caulking compound 42 12.2.3 Indoor Unit Installation Do not turn over the unit without it's shock absorber during pull out the piping. It may cause intake grille damage. Use shock absorber during pull out the piping to protect the intake grille from damage. pull out the piping Piping pull out the piping Piping PUSH PUSH PUSH PUSH Intake grille 12.2.3.1 For the right rear piping Step-1 Pull out the Indoor piping Step-2 Install the Indoor Unit Step-3 Secure the Indoor Unit Step-4 Insert the connection cable 12.2.3.2 For the right bottom piping Step-1 Pull out the Indoor piping Step-2 Install the Indoor Unit Step-3 Insert the connection cable Step-4 Secure the Indoor Unit 12.2.3.3 For the embedded piping Step-1 Replace the drain hose Step-2 Bend the embedded piping · Use a spring bender or equivalent to bend the piping so that the piping is not crushed. Step-3 Pull the connection cable into Indoor Unit · The inside and outside connection cable can be connected without removing the front grille. Step-4 Cut and flare the embedded piping · When determining the dimensions of the piping, slide the unit all the way to the left on the installation plate. · Refer to the section "Cutting and flaring the piping". Step-5 Install the Indoor Unit Step-6 Connect the piping · Please refer to "Connecting the piping" column in outdoor unit section. (Below steps are done after connecting the outdoor piping and gas-leakage confirmation.) Step-7 Insulate and finish the piping · Please refer to "Piping and finishing" column of outdoor section and "Insulation of piping connection" column as mentioned in indoor/outdoor unit installation. Step-8 Secure the Indoor Unit Shock absorber Right Rear piping Tape it with piping in a position as mentioned in Fig. below. Piping Drain hose Cover for the bottom piping How to keep the cover In case of the cover is cut, keep the cover at the rear of chassis as shown in the illustration for future reinstallation. (Left and 2 bottom covers for piping.) Cover Cover for the for the bottom piping left piping Cover for piping Right and Right Bottom piping Tape it with piping in a position as mentioned in Fig. below. Piping Drain hose Cover for the right piping Cover for Cover for the the left bottom piping piping Install the indoor unit Hook the indoor unit onto the upper portion of installation plate. (Engage the indoor unit with the upper edge of the installation plate). Ensure the hooks are properly seated on the installation plate by moving it in left and right. Secure the Indoor Unit 1. Press the lower left and right side of the unit against the installation plate until hooks engages with their slot (sound click). Indoor unit Unit's hook Hooks at installation plate Sleeve for piping hole Piping Drain hose Installation plate marking To take out the unit, push the marking at the bottom unit, and pull it slightly towards you to disengage the hooks from the unit. Insert the connection cable (720-38/40"m- 3mAb)5/o32u"t Guide surface Connection cable Connection cable Gas side piping Liquid side piping Drain hose (This can be used for left rear piping and bottom piping also.) 43 Replace the drain hose Rear view for left piping installation Drain cap Drain hose Drain hose Connection cable Adjust the piping slightly downwards. · How to pull the piping and drain hose out, in case of embedded piping. Apply putty or caulking material to seal the wall opening. M4o5(r1e91/t53h20a"nmm) Connection cable Piping More than 27 9/16" (700 mm) PVC tube for drain hose (VP-20) PVC tube for drain hose More 18 1/2" than (470 mm) Drain hose from main unit PVC tube (VP-65) for piping and connection cable PVC tube for drain hose (VP-30) Cable Piping Indoor unit 2 27/32" (72 mm) Drain hose adapter 9 usage · Join indoor drain hose to 3/4" (20 mm) nominal PVC pipe size by using drain hose adapter 9 when necessary. Remarks : Make sure indoor unit drain hose & 3/4" (20 mm) nominal PVC pipe are fully inserted to drain hose adapter 9. 12.2.4 Connect the Cable to the Indoor Unit 1. The inside and outside connection cable can be connected without removing the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassis. 3. Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. o Ensure the colour of wires of outdoor unit and terminal number are the same as the indoor's repectively. Terminals on the indoor unit 123 Colour of wires (Connecting wire) Terminals on the outdoor unit 123 WARNING This equipment must be properly earthed. o Earth lead wire shall be Yellow/Green (Y/G) in colour and shall be longer than other lead wires as shown in the figure for electrical safety in case of the slipping. 44 Piping Drain hose Connection cable More than 45 9/32" (1150 mm) Sleeve for piping hole · How to insert the connection cable and drain hose in the case of left piping. 45° Drain hose Cable Piping (For right piping, follow the same procedure) Indoor unit drain hose Close join by Vinyl Tape ( ) Drain hose adapter 9 3/4" (20 mm) nominal PVC pipe - Install incline downward more than 1° - Apply PVC glue at the join. Conduit Connector Lock Nut Conduit Cover Chassis Rear Side of Indoor Unit Terminal Board 123 Indoor and outdoor connection cable Earth Wire longer than others AC wires for safety reason Holder 12.2.5 Wiring Stripping and connecting requirement Wire stripping 13/32" ± 1/16" (10±1 mm) No loose strand when inserted WARNING RISK OF FIRE JOINING OF WIRES MAY CAUSE OVERHEATING AND FIRE. Do not joint wires Indoor/outdoor connection terminal board 7/32" (5 mm) or more (gap between wires) Conductor Conductor Conductor not fully inserted over inserted fully inserted ACCEPT PROHIBITED PROHIBITED OR OR OR Use complete wire without joining. Use approved socket and plug with earth pin. Wire connection in this area must follow to national wiring rules. 12.2.5.1 Cutting and flaring the piping 1 Please cut using pipe cutter and then remove the burrs. 2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3 Please make flare after inserting the flare nut onto the copper pipes. 1. To cut Improper flaring Pipe Reamer Handle Bar Yoke Core 0 1/32" (0-0.5 mm) Bar Inclined Surface Cracked Uneven damaged thickness Point down 2. To remove burrs Clamp handle Red arrow mark 3. To flare Copper pipe When properly flared, the internal surface of the flare will evenly shine and be of even thickness. Since the flare part comes into contact with the connections, carefully check the flare finish. 45 12.3 Outdoor Unit 12.3.1 Install the Outdoor Unit After selecting the best location, start installation according to indoor/outdoor unit installation diagram. 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut ø13/32" (ø10 mm). 2 When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. A B Model E18RKUA, E24RKUA A 24-1/8" (613 mm) B 5 5/32" (131 mm) C D 5/8" 14 3/16" (16 mm) (360.5 mm) C D 12.3.2 Connect the Piping 12.3.2.1 Connecting the piping to indoor Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers. Further tighten the flare nut with torque wrench in specified torque as stated in the table. 12.3.2.2 Connecting the piping to outdoor Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table. Do not over tighten, over tightening may cause gas leakage. Piping size Torque 1/4" (6.35 mm) 13.3 Ibf.ft [18 N·m (1.8 kgf·m)] 3/8" (9.52 mm) 31.0 Ibf.ft [42 N·m (4.3 kgf·m)] 1/2" (12.7 mm) 40.6 Ibf.ft [55 N·m (5.6 kgf·m)] 5/8" (15.88 mm) 47.9 Ibf.ft [65 N·m (6.6 kgf·m)] 3/4" (19.05 mm) 73.8 Ibf.ft [100 N·m (10.2 kgf·m)] Spanner or Wrench Torque wrench 46 12.3.2.3 Connecting the piping to outdoor multi Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valve and then tighten with torque wrench to the specified torque as stated in the table. Male side Hall Union (Auxiliary pipe) Wrench (Adjustable Wrench) Hall Union Male side (Auxiliary pipe) Female side Flare Nut (Connection pipe) Applicable to Liquid side of CS-E18RKUA CS-E24RKUA Packing Torque Wrench for Flare Nut Pipe Size Reducer Flare Nut Female side (Connection pipe) Wrench (Adjustable Wrench) Torque Wrench for Flare Nut and Pipe Size Reducer Applicable to Gas side of CS-E18RKUA CS-E24RKUA 12.3.2.4 Gas Leak Checking Pressure test to system to 400 PSIG with dry nitrogen, in stages. Thoroughly leak check the system. If the pressure holds, release the nitrogen and proceed to section 12.3.3. 12.3.3 Evacuation of the equipment Vacuum pump Indoor unit Liquid side Two-way valve Outdoor unit Gas side Close Three-way valve Close 1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. 2. Connect the micron gauge between vacuum pump and service port of outdoor units. 3. Turn on the power switch of the vacuum pump and make sure that connect digital micron gauge and to pull down to a value of 500 microns. 4. To make sure micron gauge a value 500 microns and close the low side valve of the charging set and turn off the vacuum pump. 5. Disconnect the vacuum pump house from the service port of the 3-way valve. 6. Tighten the service port caps of the 3-way valve at a torque of 13.3 Ibf·ft (18 N·m) with a torque wrench. 7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to "Open" using a hexagonal wrench (5/32" (4 mm)). 8. Mount valve caps onto the 2-way valve and the 3-way valve. o Be sure to check for gas leakage. · If micron gauge value does not descend 500 microns, take the following measures: - If the leak stops when the piping connections are tightened further, continue working from step 3. - If the leak does not stop when the connections are retightened, repair location of leak. - Do not release refrigerant during piping work for installation and reinstallation. - Be careful with the liquid refrigerant, it may cause frostbite. 47 12.3.3.1 Connect the Cable to the Outdoor Unit 1. Remove control board cover (Resin and Metal). 2. Remove particular plate. 3. Remove plugs. 4. Fix the conduit connectors to the knockout holes with lock-nuts, then secure them against the side panel. 5. All wires pass through conduits & particular plate's opening hole. 6. Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. 7. Wire connection to the power supply (208/230V 60Hz) through circuit breaker. o Connect the UL listed or CSA approved wires minimum AWG12 to the terminal board, and connect the other end of the wires to ELCB / GFCI. 8. Connect the power supply cord and connecting wire between indoor unit and outdoor unit according to the diagram below. Indoor Unit Terminal 1 2 3 208/230V min AWG16 208/230V min AWG16 208/230V min AWG16 Grounding wire min AWG16 * Ensure all connecting wire between indoor unit and outdoor unit and power supply cord are installed in individual conduit. Outdoor Unit Terminal 1 2 3 Disconnect Switch Field supply L1 L2 Grounding wire Power Supply Single Phase 208/230V 60Hz min AWG12 9. Secure the wire onto the control board with the holder (clamper). 10. After completing wiring connections, reattach the control board cover (Metal and Resin) and the top panel to the original position with the screws. 11. For wire stripping and connection requirement, refer to instruction 12.2.5 of indoor unit. WARNING This equipment must be properly earthed. Earth lead wire shall be Yellow/Green (Y/G) in colour and longer than other lead wires for electrical safety in case of the slipping. Front Panel Particular Plate Lock Nuts Connecting Wires Control Board Cover (Metal) Control Board Cover (Resin) Terminal Board Earth wire longer than others AC wires for safety reason Holder Terminal Board Earth wire longer than others AC wires for safety reason Holder Knockout Holes Plugs Connectors Particular Plate's opening holes Power supply cord Indoor & outdoor connection cable 12.3.3.2 Piping Insulation 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 1/4" (6 mm) or above. 48 13. Operation Control 13.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature. 13.1.1 Internal Setting Temperature Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit. Remote Control Setting Temperature 60.8°F - 86°F Auto Operation Mode Shifting Indoor Air Temperature Shifting Outdoor Air Temperature Shifting Powerful Mode Shifting Setting Temperature Limit Checking (Min: 60.8°F; Max 91.4°F) Internal Setting Temperature 13.1.2 Cooling Operation 13.1.2.1 Thermostat control Compressor is OFF when intake Air Temperature - Internal Setting Temperature < 2.7°F. Compressor is ON after waiting for 3 minutes, if the Intake Temperature - Internal Setting Temperature > Compressor OFF point. 13.1.3 Soft Dry Operation 13.1.3.1 Thermostat control Compressor is OFF when Intake Temperature - Internal Setting Temperature < -3.6°F. Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point. 13.1.4 Heating Operation 13.1.4.1 Thermostat control Compressor is OFF when Intake Temperature - Internal Setting Temperature > 3.6°F. Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF point 49 13.1.4.2 Automatic Operation (For Single Split Connection Only) This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature. During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature. Every 10 minutes, the indoor temperature is judged. For the 1st judgment o If indoor intake temperature - remote control setting temperature 3.6°F, COOL mode is decided. o If -3.6°F indoor intake temperature - remote control setting temperature < 3.6°F, DRY mode is decided. o If indoor intake temperature - remote control setting temperature < -3.6°F , HEAT mode is decided. Heat Dry Cool -10.8 -9.0 -7.2 -5.4 -3.6 -1.8 0 1.8 3.6 5.4 7.2 9.0 10.8 For the 2nd judgment onwards o If indoor intake temperature - remote control setting temperature 5.4°F, if previous operate in DRY mode, then continue in DRY mode. otherwise COOL mode is decided. o If -3.6°F indoor intake temperature - remote control setting temperature < 5.4°F, maintain with previous mode. o If indoor intake temperature - remote control setting temperature < -3.6°F, HEAT mode is decided. Heat Maintain current mode Cool /Dry -10.8 -9.0 -7.2 -5.4 -3.6 -1.8 0 1.8 3.6 5.4 7.2 9.0 10.8 13.2 Indoor Fan Speed Control Indoor Fan Speed can be set using remote control. 13.2.1 Fan Speed Rotation Chart Mode COOL Fan Tap SHi Hi Me+ Me MeLo LoSLo SSLo Mode HEAT Fan Tap SSHi SHi Me+ Me MeLo LoSLo SSLo Application Pwr Me+ Fc, RC RC RC RC Fcmin, RC QuietLo Dry Auto Cut Application Pwr Me+ Fh, RC RC RC RC Fhmin, RC QuietLo Thermo Off, Hot start Thermo Off E9RKUAW rpm 1210 1120 1010 910 810 710 610 550 540 E12RKUAW rpm 1350 1230 1110 1000 890 780 620 560 550 E18RKUAW rpm 1480 1380 1300 1220 1140 1060 970 690 580 E24RKUAW rpm 1500 1400 1320 1240 1160 1090 1000 690 580 E9RKUAW rpm 1340 1250 1140 1040 930 830 730 570 560 E12RKUAW rpm 1450 1380 1290 1210 1120 1040 940 570 560 E18RKUAW rpm 1500 1410 1330 1260 1190 1120 1030 430 330 E24RKUAW rpm 1600 1500 1430 1360 1290 1220 1110 430 330 50 13.3 Indoor Fan Motor Operation 13.3.1 Basic Rotation Speed (rpm) Manual Fan Speed [Cooling, Dry] o Fan motor's number of rotation is determined according to remote control setting. Remote control Tab Hi Me+ Me Me- Lo [Heating] o Fan motor's number of rotation is determined according to remote control setting. Remote control Tab Shi Me+ Me Me- Lo Auto Fan Speed [Cooling, Dry] o According to room temperature and setting temperature, indoor fan speed is determined automatically. o The indoor fan will operate according to pattern below. Fan [1 pattern : 10 s] Speed Higher a b c d e f g h a b Medium Lower o During operation, indoor fan motor may stop due to odor prevention. [Heating] o According to indoor pipe temperature, automatic heating fan speed is determined as follows. 102.2oF RPM Increased RPM Maintain RPM Reduced 95oC 66.2oF OFF 60.8oF Indoor Pipe Temp. Feedback control o Immediately after the fan motor started, feedback control is performed once every second. o During fan motor on, if fan motor feedback 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error counter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then H19 - fan motor error is detected. Operation stops and cannot on back. 13.4 Outdoor Fan Motor Operation Outdoor fan motor is operated with fan speed number of rotation. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation. ON Compressor ON OFF ON Fan Speed ON Outdoor Fan 30 sec OFF 51 13.5 Airflow Direction There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes). Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control). 13.5.1 Vertical Airflow 13.5.1.1 CU-E9RKUA CU-E12RKUA Operation Mode Airflow Direction Heating Cooling Soft Dry A Auto with Heat Exchanger Temperature B C Manual Auto Manual Auto Manual 13.5.1.2 CU-E18RKUA CU-E24RKUA Vane angle (°) 1 2 3 4 5 20 57 32 20 32 45 57 68 20 ~ 45 20 26 32 37 45 20 ~ 45 20 26 32 37 45 Operation Mode Airflow Direction Heating Cooling Soft Dry A Auto with Heat Exchanger Temperature B C Manual Auto Manual Auto (Anti-Dew Control) Manual (Anti-Dew Control) Vane angle (°) 1 2 3 4 5 20 45 32 20 32 45 57 68 20 ~ 45 20 26 32 37 45 20 ~ 45 20 26 32 37 45 Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, the vane will shift to close position. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position. C 136.4°F B 96.8°F A Indoor Heat Exchanger Temperature Figure 1 122°F 86°F 0° 1 2 3 140° Side View 4 5 Close position Figure 2 13.5.2 Horizontal Airflow (CU-E9RKUA CU-E12RKUA) The horizontal airflow direction louvers can be adjusted manually by hand. 52 13.5.3 Horizontal Airflow (CU-E18RKUA CU-E24RKUA) Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below. Operation Mode A Heating with heat exchanger temperature B Cooling and Soft Sry Vane Angle (°) 68 ~ 112 90 68 ~ 112 109.4°F A: swing B: fix front Indoor Heat Exchanger Temperature Figure 1 104.0°F 0° Top View 1 5 2 4 3 Figure 2 Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated below and the positions of the vane are as figure below: Pattern 1 2 3 4 5 Airflow Direction Patterns at Remote Control Vane Angle (° ) 90 68 78 102 112 13.6 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode) Purpose o To provide quiet cooling operation compare to normal operation. Control condition o Quiet operation start condition When "Quiet" button at remote control is pressed. Quiet LED illuminates. o Quiet operation stop condition When one of the following conditions is satisfied, quiet operation stops: POWERFUL/QUIET button is pressed. Stop by OFF/ON button. OFF Timer activates. POWERFUL/QUIET button is pressed again. When quiet operation is stopped, operation is shifted to normal operation with previous setting. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode. During quiet operation, if ON timer activates, quiet operation maintains. After off, when on back, quiet operation is not memorised. Control contents o Auto fan speed is change from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB. o Manual fan speed for quiet operation is -1 step from setting fan speed. 53 13.7 Quiet Operation (Heating) Purpose o To provide quiet heating operation compare to normal operation. Control condition o Quiet operation start condition When "POWERFUL/QUIET" button at remote control is pressed. Quiet LED illuminates. o Quiet operation stop condition When one of the following conditions is satisfied, quiet operation stops: Stop by OFF/ON button. Timer "off" activates. POWERFUL/QUIET button is pressed again. When quiet operation is stopped, operation is shifted to normal operation with previous setting. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode. During quiet operation, if timer "on" activates, quiet operation maintains. After off, when on back, quiet operation is not memorised. Control contents o Fan speed auto Indoor FM RPM depends on pipe temperature sensor of indoor heat exchanger. Auto fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB. o Fan speed manual Manual fan speed for quiet operation is -1 step from setting fan speed. 13.8 Powerful Mode Operation When the powerful mode is selected, the internal setting temperature will shift lower up to 3.6°F (for Cooling/Soft Dry) or higher up to 6.3°F (for Heating) than remote control setting temperature for 20 minutes to achieve the setting temperature quickly. 13.9 Timer Control 13.9.1 ON Timer Control ON Timer can be set using remote control, where the unit with timer set will start operation earlier than the setting time. This is to provide a comfortable environment when reaching the set ON time. 60 minutes before the set ON time, indoor (at fan speed of Lo-) and outdoor fan motor start operation for 30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operation starting time. From the above judgment, the decided operation will start operation earlier than the set time as shown below. Indoor intake air temperature (oF) 86 15 min 10 min 77 5 min 86 95 (oF) Outdoor air temperature (oF) Indoor intake air temperature (oF) 59 25 min 30 min 41 35 min 32 41 (oF) Outdoor air temperature (oF) Cooling/Soft Dry Heating 13.9.2 OFF Timer Control OFF Timer can be set using remote control, the unit with timer set will stop at set time. 54 13.10 Auto Restart Control When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes. This type of control is not applicable during ON/OFF Timer setting. 13.11 Indication Panel LED Color Light ON Light OFF POWER Green Operation ON Operation OFF TIMER QUIET POWERFUL Orange Orange Orange Timer Setting ON Quiet Mode ON Powerful Mode ON Timer Setting OFF Quiet Mode OFF Powerful Mode OFF AUTO COMFORT Green Auto Comfort ON Auto Comfort OFF ECONAVI Green Econavi Mode ON Econavi Mode OFF Note: If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling. If Timer LED is blinking, there is an abnormality operation occurs. 13.12 ECONAVI and AUTO COMFORT Operation A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine the presence or absence of human and its activity level. Human detection area is shown in figure below: Top View 90° 2m Angle of detection 7m Area of detection ECONAVI and AUTO COMFORT operation Human presence/absence detection outlined flow Process infrared sensor output signal Human detection (movement) every 3 seconds. Human detection records Records human detection (movement) result for 30 seconds and determine its activity level i.e. Hi/Lo. Presence / absence detection Compares current and previous human detection result every 30 seconds to determine the presence or absence of human. Presence / absence determination Based on human presence / absence detection, if human presence detection showed within 30 minutes, it is recognised that human is present. If human absence detection showed continuously for more than 30 minutes, it is recognised that no human is present. ECONAVI and AUTO COMFORT Sensor abnormality detection 1. Connector pulled out (disconnected), Wire cut Abnormality (Fix Output at Hi) a. Abnormal judgment start condition. Start from ECONAVI and AUTO COMFORT Sensor power ON, and end after 30 seconds. b. Control content. Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms. c. Abnormal Judgment condition. When ECONAVI and AUTO COMFORT Sensor has continues for 25 seconds Hi level. 55 2. Circuit Abnormal (Fix Output Lo) a. Abnormal judgment start condition. After ECONAVI and AUTO COMFORT Sensor unit power ON, and after pressed 70 seconds. b. Control content. Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms. c. Abnormal Judgment condition. When ECONAVI and AUTO COMFORT Sensor has continues at Lo level for 25 seconds. 3. Abnormal treatment Any one of the above self-diagnosis result is abnormal Abnormal counter +1 and ECONAVI and AUTO COMFORT Sensor power supply OFF. After ECONAVI and AUTO COMFORT Sensor unit power is OFF for 5 seconds, Retry the ECONAVI and AUTO COMFORT operation. When Abnormal counter reach 4 counts, ECONAVI and AUTO COMFORT sensor abnormality is confirmed. (Abnormal counter is cleared when sensor power ON and maintain normal for 120 seconds and above or Clear Abnormal counter by power reset) Save ECONAVI and AUTO COMFORT Sensor Abnormality H59 (no Timer LED blinking). ECONAVI & AUTO COMFORT Sensor operation OFF, but ECONAVI and AUTO COMFORT LED maintain ON. The unit still operate as normal. Sensor error counter can be cleared only after power supply reset or AC Reset button on the remote control is pressed. ECONAVI and AUTO COMFORT Demo Mode To enable ECO DEMO mode, during unit is OFF (power standby): Remote control normal mode Press continously for 5s SET SET Transmit ECO demo code and after 30 seconds return to normal mode. TEM P TEM P SET Transmit sunlight sensor check code and after 30 seconds return to normal mode. TEM P TEM P SET Transmit check code and after 30 seconds return to normal mode. To disable ECO Demo MODE: Transmit ECO Demo signal again. Control details: During ECONAVI and AUTO COMFORT Demo mode, operation LED ON and horizontal vane will set to Auto Swing. When Hi activity judge, Fan speed change to Hi Fan and ECONAVI and AUTO COMFORT LED ON. When Lo activity judge, Fan speed change to Lo Fan and ECONAVI and AUTO COMFORT LED OFF. No setting temperature adjustment. During ECONAVI and AUTO COMFORT operation, the internal setting temperature and fan speed are adjusted in order to provide comfort and energy saving. 56 ECONAVI Start condition. Press ECONAVI button. ECONAVI Stop condition. Press ECONAVI button again. OFF Timer activates. Press OFF/ON button to turn off the air conditioner. Press AUTO OFF/ON button to turn off the air conditioner. Press POWERFUL/QUIET button. AUTO COMFORT Start condition. Press AUTO COMFORT button. AUTO COMFORT Stop condition. Press AUTO COMFORT button again. OFF Timer activates. Press OFF/ON button to turn off the air conditioner. Press AUTO OFF/ON button to turn off the air conditioner. Press POWERFUL/QUIET button. ECONAVI and AUTO COMFORT operation could ON when any of the following conditions is fulfilled: During forced cooling or forced heating operation. Power Failure ECONAVI and AUTO COMFORT operation will be resuming after recovered from power failure. Timer Operation When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is ON during previous operation before OFF, ECONAVI and AUTO COMFORT operation will not be ON automatically. When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is OFF during previous operation before OFF, ECONAVI and AUTO COMFORT operation will not be ON automatically. Other Information ECONAVI and AUTO COMFORT, Powerful, Quiet and Mild Dry Cooling cannot be operated at the same time. ECONAVI and AUTO COMFORT sensor initialized time is 70 seconds from power supplied to ECONAVI and AUTO COMFORT sensor, or 70 seconds from the operation start. Setting Temperature and Fan Speed Shift Mono Sensor ECONAVI ; Detecting human presence and activity, the unit controls room temperature to save energy. Mode COOL/DRY HEAT Human Low activity Normal activity High activity Set temperature +2°F / +1°C -4°F / -2°C Absent +4°F / +2°C -4°F / -2°C AUTO COMFORT ; Detecting human presence and activity, the unit controls room temperature to keep human comfortable consistently. Mode COOL/DRY HEAT Human Low activity Normal activity Set temperature +2°F / +1°C +0.5°F / +0.3°C Set Fan Speed +1 tap* High activity -2°F / -1°C -4°F / -2°C +1 tap Absent +4°F / +2°C -4°F / -2°C * During low activity, fan speed 1 tap up for first 15 minutes or until set temperature is reached. ** During human absence, maximum fan speed for COOL/DRY mode is medium fan. 57 13.12.1 Human Activity Sensor Check Mode To enable Human Activity sensor abnormality check mode, during ECONAVI operation ON: Remote control normal mode Press continously for 5s SET SET Transmit ECO demo code and after 30 seconds return to normal mode. TEMP TEMP SET Transmit sunlight sensor check code and after 30 seconds return to normal mode. TEMP TEMP SET Transmit check code and after 30 seconds return to normal mode. During ECONAVI is ON, when CHECK signal received, if either sensors has abnormality, the 4 times abnormality counter is ignored, ECONAVI Indicator will blink immediately and error code is memorized. The unit could operate without ECONAVI or AUTO COMFORT. The ECONAVI indicator blinking could be cancelled by pressing ECONAVI button again. If the human activity sensor has no abnormality, the CHECK process will end and continue with normal operation. 58 14. Operation Control (For Multi Split Connection) During multi split connection, indoor unit's operation controls are same with single split connection unless specified in this chapter. 14.1 Cooling operation 14.1.1 Thermostat control Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature -- Internal setting temperature < 28.4°F. Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air temperature -- Internal setting temperature > Capability supply OFF point. 14.2 Soft Dry Operation 14.2.1 Thermostat control Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature -- Internal setting temperature < 26.6°F. Capability resume to indoor unit after waiting for 3 minutes, if the Intake Air temperature -- Internal setting temperature > Capability supply OFF point. 14.3 Heating Operation 14.3.1 Thermostat control Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature -- Internal setting temperature > 33.8°F. During this condition, the indoor fan is stopped if compressor is ON. Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air Temperature -- Internal setting temperature < Capability supply OFF point. 14.3.2 Temperature Sampling Control Temperature sampling is controlled by outdoor unit where room temperature for all power supply ON indoor unit could be obtained. When capability supply to the indoor unit is OFF and the compressor is ON during heating operation, the indoor fan motor is stopped. During this condition, 15 seconds after sampling signal from outdoor unit is received, the indoor fan start operation at low fan speed. However, within first 4 minutes of capability stopped supply to the indoor unit, even sampling signal is received, the sampling control is cancelled. 59 14.4 Automatic Operation (For Multi Split Connection Only) This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature. During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on below chart. Indoor intake air temperature (F) 96.8 T1 T2 T3 Heating Mode Soft Dry Mode Cooling Mode Remote Control setting temperature 60.8 55.4 66.2 69.8 73.4 77 Outdoor air temperature (F) Every 180 minutes, the indoor and outdoor temperature is judge. Based on remote control setting temperature, the value of T1 will increase up to 50°F, T2 will decrease by 37.4°F and T3 will decrease up to 46.4°F. 14.5 Indoor Fan Motor Operation 14.5.1 Residual Heat Removal Control To prevent high pressure at indoor unit, when heating mode thermostat-off condition or power supply OFF, indoor fan continue to operate at controlled fan speed for maximum 30 seconds then stop. 14.6 Powerful Mode Operation When the power mode is selected, the internal setting temperature will shift lower up to 39.2F for Cooling/Soft Dry or higher up to 42.8°F for heating than remote control setting temperature, the powerful operation continue until user cancel the Powerful operation by pressing powerful button again. 14.7 Auto restart control When the power supply is cut off during the operation of air conditioner, the compressor will re-operate between three to four minutes (10 patterns to be selected randomly) after power resume. During multi split connection, Indoor unit will resume previous mode, include unit standby mode. 14.8 Indication Panel LED Color Light ON Light OFF POWER Green Operation ON Operation OFF TIMER QUIET POWERFUL AUTO COMFORT Orange Orange Orange Green Timer Setting ON Quiet Mode ON Powerful Mode ON Auto Comfort ON Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Auto Comfort OFF ECONAVI Green Econavi Mode ON Econavi Mode OFF Note: If POWER LED is blinking (0.5 second ON, 0.5 second OFF), the possible operation of the unit are during Indoor Residual Heat Removal, Hot Start, during Deice operation, operation mode judgment, or ON timer sampling. If POWER LED is blinking (2.5 seconds ON, 0.5 second OFF), the unit is in standby mode. If TIMER LED is blinking, there is an abnormality operation occurs. 60 15. Protection Control (E9RK and E12RK) 15.1 Protection Control For All Operations 15.1.1 Restart Control (Time Delay Safety Control) The compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. This control is not applicable if the power supply is cut off and on again. This phenomenon is to balance the pressure inside the refrigerant cycle. 15.1.2 30 Seconds Forced Operation Once the air conditioner is turned on, the compressor will not stop within 30 seconds in a normal operation although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON button at the remote control is permitted or the Auto OFF/ON button at indoor unit. The reason for the compressor to force operation for minimum 30 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit. 15.1.3 Total Running Current Control When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be decreased. If the running current does not exceed X value for 5 seconds, the frequency instructed will be increased. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3 minutes. Model A Cool (X) B C Heat (X) Y E9RKUA 3.89 A 3.28 A 3.28 A 5.27 A 15.01 A E12RKUA 6.55 A 6.10 A 6.10 A 7.05 A 15.01 A 1. The first 30 minutes of cooling operation, (A) will be applied. 109.4°F C 107.6°F 102.2°F B 100.4°F A Outdoor Intake temperature Outdoor Intake temperature 15.1.4 IPM (Power Transistor) Prevention Control Overheating Prevention Control o When the IPM temperature rises to 212°F, compressor operation will stop immediately. o Compressor operation restarts after 3 minutes the temperature decreases to 203°F. o If this condition repeats continuously 4 times within 20 minutes, timer LED will be blinking ("F96" is indicated). DC Peak Current Control o When electric current to IPM exceeds set value of 18.5A, the compressor will stop operate. Then, operation will restart after 3 minutes. o If the set value exceeds again more than 30 seconds after the compressor starts, the operation will restart after 2 minutes. o If the set value exceeds again within 30 seconds after the compressor starts, the operation will restart after 1 minute. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off, timer LED will be blinking ("F99" is indicated). 61 15.1.5 Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. If compressor discharge temperature exceeds 224.6°F, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking. ("F97" is indicated.) 224.6oF 217.4oF 212oF Compressor = OFF Compressor Frequency Reduce Compressor Frequency Maintain Free 197.6oF 195.8oF 194oF Comp. Discharge temperature 15.1.6 Low Pressure Prevention Control (Gas Leakage Detection) Control start conditions o For 5 minutes, the compressor continuously operates and outdoor total current is between 0.64A and 0.85A. o During Cooling and Soft Dry operations: Indoor suction temperature - indoor piping temperature is below 7.2.°F. o During Heating operations: Indoor piping temperature - indoor suction is under 9°F. Control contents o Compressor stops (and restart after 3 minutes). o If the conditions above happen 2 times within 20 minutes, the unit will: Stop operation Timer LED blinks and "F91" indicated. 15.1.7 Low Frequency Protection Control 1 When the compressor operates at frequency lower than 24Hz continued for 240 minutes, the operation frequency will be changed to 25Hz for 2 minutes. 15.1.8 Low Frequency Protection Control 2 When all below conditions comply, minimum limit of compressor will be set. Temperature, T, for: Indoor intake air (°F) Outdoor air (°F) Indoor heat exchanger (°F) Cooling / Soft Dry T < 57.2 or T 86 T < 55.4 or T 100.4 T < 86 Heating - T < 57.2 or T 82.4 T 32 62 15.2 Protection Control For Cooling & Soft Dry Operation 15.2.1 Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rise above 57.2°F in order to avoid compressor overloading. 101.3°F Compressor ON Compressor OFF 99.5°F Outdoor Air Temperature The compressor will be stopped at outdoor air temperature -4°F. The unit still operate within the temperature range. -0.4°F Compressor ON -4°F Compressor OFF Outdoor Air Temperature 15.2.2 Cooling Overload Control Pipe temperature limitation / restriction. o Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor operation frequency) o The compressor stops if outdoor pipe temperature exceeds 141.8°F. o If the compressor stops 4 times in 20 minutes, Timer LED blinks ("F95" indicated: Outdoor high pressure rise protection) 15.2.3 Freeze Prevention Control 1 When indoor heat exchanger temperature is lower than 32°F continuously for 6 minutes, compressor will stops operation. Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 41°F. At the same time, indoor fan speed will be higher than during its normal operation. If the indoor heat exchanger temperature is higher than 55.4°F for 5 minutes, the fan speed will return to its normal operation. 15.2.4 Freeze Prevention Control 2 Control start conditions o During Cooling operation and soft dry operation During thermo OFF condition, indoor intake temperature is less than 50°F or Compressor stops for freeze prevention control o Either one of the conditions above occurs 5 times in 60 minutes. Control contents o Operation stops o Timer LED blinks and "H99" indicated 63 15.2.5 Dew Prevention Control 1 To prevent dew formation at indoor unit discharge area. This control will be activated if: o Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. o When Cooling or Dry mode is operated more than 20 minutes or more. This control stopped if: o Compressor stopped. o Remote control setting changed (fan speed / temperature). o Outdoor air temperature and indoor intake temperature changed. Fan speed, angle of louver (vertical airflow angle) will be adjusted accordingly in this control. 1. Fan speed will be increased slowly when control is activated until predetermine value. Compressor frequency will be regulated accordingly. 15.2.6 Protection Control For Heating Operation 15.2.6.1 Intake Air Temperature Control Compressor will operate at limited freq., if indoor intake air temperature is 86°F or above. 15.2.6.2 Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rise above 57.2°F in order to avoid compressor overloading. 57.2°F Current Regulated Free withing maximum limit 52.6°F Outdoor Air Temperature The compressor will be stopped at outdoor air temperature -4°F. The unit still operate within the temperature range. -0.4°F Compressor ON -4°F Compressor OFF Outdoor Air Temperature 64 15.2.6.3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below. If the heat exchanger temperature exceeds 140.0°F, compressor will stop. 140°F 131°F OFF Frequency Reduced Frequency Limited 120.2°F Free Indoor Heat Exchanger Temp. Frequency Limited 114.8°F 15.2.6.4 Low Temperature Compressor Oil Return Control In heating operation, if the outdoor temperature falls below 14°F when compressor starts, the compressor frequency will be regulated up to 600 seconds. 15.2.6.5 Cold Draught Prevention Control When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced or stop. Horizontal vane angle may be adjusted in Auto vane setting. 15.2.6.6 Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks. Horizontal vane is closed during auto vane setting. 65 16. Protection Control (E18RK and E24RK) 16.1 Protection Control For All Operations 16.1.1 Restart Control (Time Delay Safety Control) The compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. This control is not applicable if the power supply is cut off and on again. This phenomenon is to balance the pressure inside the refrigerant cycle. 16.1.2 30 Seconds Forced Operation Once the air conditioner is turned on, the compressor will not stop within 30 seconds in a normal operation although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON button at the remote control is permitted or the Auto OFF/ON button at indoor unit. The reason for the compressor to force operation for minimum 30 seconds is to allow the refrigerant oil run in a full cycle and return back to the outdoor unit. 16.1.3 Total Running Current Control When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be decreased. If the running current does not exceed X value for 5 seconds, the frequency instructed will be increased. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3 minutes. Model A Cool (X) B C Heat (X) Y E18RKUA 10.85 A 9.84 A 9.84 A 11.29 A 19.30 A E24RKUA 12.47 A 11.46 A 10.16 A 13.80 A 19.30 A 1. The first 30 minutes of cooling operation, (A) will be applied. 109.4°F C 107.6°F 102.2°F B 100.4°F A Outdoor Intake temperature Outdoor Intake temperature 16.1.4 IPM (Power Transistor) Prevention Control Overheating Prevention Control o When the IPM temperature rises to 212°F, compressor operation will stop immediately. o Compressor operation restarts after 3 minutes the temperature decreases to 203°F. DC Peak Current Control o When electric current to IPM exceeds set value of 29.9A, the compressor will stop operate. Then, operation will restart after 3 minutes. o If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will restart after 2 minute. o If the set value is exceeded again within 30 seconds after the compressor starts, the operation will restart after 1 minute. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off. Timer LED will be blinking (F99 is indicated). 66 16.1.5 Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. If compressor discharge temperature exceeds 233.6°F, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking. "F97" is indicated. 233.6°F 230.0°F Compressor = OFF Compressor Frequency Reduced 206.6°F 212.0°F Compressor Frequency Maintain 204.8°F Free Comp Discharge temperature 194.0°F 16.1.6 Low Pressure Protection Control (Gas Leakage Detection) For 5 minutes, the compressor continuously operates and outdoor total current is between 0.78A and 1.16A. During Cooling and Soft Dry operation: Indoor suction temperature indoor piping temperature is below 39.2°F. During Heating operations : Indoor piping temperature - indoor suction is under 41.0°F. 16.1.7 Low Frequency Protection Control 1 When the compressor operates at frequency lower than 25Hz continued for 240 minutes, the operation frequency will be changed to 24Hz for 2 minutes. 16.1.8 Low Frequency Protection Control 2 When all below conditions comply, minimum limit of compressor will be set. Temperature, T, for: Indoor intake air (°F) Outdoor air (°F) Indoor heat exchanger (°F) E18RKUA, E24RKUA Cooling / Soft Dry Heating T < 57.2 or T 86.0 T < 57.2 or T 82.4 T < 55.4 or T 100.4 T < 39.2 or T 75.2 T < 86.0 T 32.0 16.2 Protection Control For Cooling & Soft Dry Operation 16.2.1 Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. This control will begin 1 minute after the compressor starts. Compressor frequency will adjust based on outdoor air temperature. 77.0°F Free Limited frequency 71.6°F 67 The compressor will be stopped at outdoor air temperature -4°F. The unit still operate within the temperature range. -0.4°F Compressor ON -4°F Compressor OFF Outdoor Air Temperature 16.2.2 Cooling Overload Control Pipe temperature limitation / restriction. o Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor operation frequency) o The compressor stops if outdoor pipe temperature exceeds 145.4°F. o If the compressor stops 4 times in 20 minutes, Timer LED blinks ("F95" indicated: Outdoor high pressure rise protection) 16.2.3 Freeze Prevention Control 1 When indoor heat exchanger temperature is lower than 32°F continuously for 6 minutes, compressor will stops operation. Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 41.0°F. At the same time, indoor fan speed will be higher than during its normal operation. If the indoor heat exchanger temperature is higher than 55.4°F for 5 minutes, the fan speed will return to its normal operation. 16.2.4 Freeze Prevention Control 2 Control start conditions o During Cooling operation and soft dry operation During thermo OFF condition, indoor intake temperature is less than 50.0°F or Compressor stops for freeze prevention control o Either one of the conditions above occurs 5 times in 60 minutes. Control contents o Operation stops o Timer LED blinks and "H99" indicated 16.2.5 Dew Prevention Control 1 To prevent dew formation at indoor unit discharge area. This control will be activated if: o Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. o When Cooling or Dry mode is operated more than 20 minutes or more. This control stopped if: o Compressor stopped. o Remote control setting changed (fan speed / temperature). o Outdoor air temperature and indoor intake temperature changed. Fan speed, angle of louver (vertical airflow angle) will be adjusted accordingly in this control. 1. Fan speed will be increased slowly when control is activated until predetermine value. Compressor frequency will be regulated accordingly. 16.2.6 Protection Control For Heating Operation 16.2.6.1 Intake Air Temperature Control Compressor will operate at limited freq., if indoor intake air temperature is 86.0°F or above. 68 16.2.6.2 Outdoor Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 57.2°F in order to avoid compressor overloading. The compressor will be stopped at outdoor air temperature -4°F. The unit still operate within the temperature range. -0.4°F Compressor ON -4°F Compressor OFF Outdoor Air Temperature 16.2.6.3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below. If the heat exchanger temperature exceeds 140.0°F, compressor will stop. 140.0°F 125.6°F 120.2°F OFF Frequency Reduced Frequency Limited Free 114.8°F 16.2.6.4 Low Temperature Compressor Oil Return Control In heating operation, if the indoor temperature falls below 17.6°F when compressor starts, the compressor frequency will be regulated up to 600 seconds. 16.2.6.5 Cold Draught Prevention Control When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced or stop. Horizontal vane angle may be adjusted in Auto vane setting. 16.2.6.6 Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks. Horizontal vane is closed during auto vane setting. 69 17. Servicing Mode 17.1 Auto Off/On Button Auto OFF/ON Button pressed Auto OFF/ON Button pressed Auto OFF/ON Button pressed Auto Operation 5 sec Test Run Operation (Forced Cooling Operation) Beep 5 sec Stop Test Run Operation (Forced Cooling Operation) Beep x 2 Stop 1 AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. 2 TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds. A "beep" sound will heard at the fifth seconds, in order to identify the starting of Test Run operation (Forced cooling operation). Within 5 minutes after Forced cooling operation start, the Auto OFF/ON button is pressed for more than 5 seconds. A 2 "beep" sounds will heard at the fifth seconds, in order to identify the starting of Forced heating operation. The Auto OFF/ON button may be used together with remote control to set / change the advance setting of air conditioner operation. Auto OFF/ON button pressed Auto Operation Main unit always continue Test Run (forced cooling) operation 5 sec 8 sec 11 sec 16 sec Test Run Operation Test Run Operation Remote Control Number (Forced Cooling Operation) (Forced Heating Operation) Switch Mode Remote Control Receiving Sound OFF/ON Beep Beep x 2 Beep x 3 Beep x 4 Press "AC RESET" Press "AC RESET", then any key at remote control Press "AC RESET" at remote control 3 REMOTE CONTROL NUMBER SWITCH MODE The Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 11 seconds (3 "beep" sounds will occur at 11th seconds to identify the Remote Control Number Switch Mode is in standby condition) and press "AC RESET" button and then press any button at remote control to transmit and store the desired transmission code to the EEPROM. There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit will only operate when received signal with same transmission code from remote control. This could prevent signal interference when there are 2 or more indoor units installed nearby together. To change remote control transmission code, short or open jumpers at the remote control printed circuit board. Remote Control Printed Circuit Board J1 Jumper A (J1) Short Jumper B (D2) Open Remote Control No. A (Default) Open Open B D2 Short Short C Open Short D During Remote Control Number Switch Mode, press any button at remote control to transmit and store the transmission code to the EEPROM. 4 REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 "beep" sounds will occur at 16th seconds to identify the Remote Control Receiving Sound OFF/ON Mode is in standby condition) and press "AC Reset" button at remote control. 70 Press Auto OFF/ON button to toggle remote control receiving sound. - Short "beep": Turn OFF remote control receiving sound. - Long "beep": Turn ON remote control receiving sound. After Auto OFF/ON button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is restarted. 17.2 Cooling Only Operation (Single connection Only, Multi connection please refer to Multi outdoor manual) 17.2.1 How to activate and deactivate Cooling Only Operation AUTO SW is pressed 5s 8s 11s 16s 21s 26s 36s Emergency Operation Forced Cooling Operation Forced Heating Operation Cool Only Mode Enable/ Disable Remote Control Number Switch Mode Remote Control Receiving Sound No Setting Mode *Operation Forced Time Check Cooling Mode Operation Pit PitPit PitPitPit PitPitPitPit Peet No AC reset code CHECK AC reset code AC reset code AC reset code AC reset code code The default setting is "Cool Only" mode disable. To enable the "Cool Only" mode, press the AUTO OFF/ON SW for more than 8s and less than 11s, "Pit Pit" sound will be heard, then release the AUTO OFF/ON SW and press remote controller CHECK button. A short "Pit" sound will be heard. "Cool Only" mode is now enable. To disable the "Cool Only" mode, press the AUTO OFF/ON SW for more than 8s and less than 11s, "Pit Pit" sound will be heard, then release the AUTO OFF/ON SW and press remote controller CHECK button. A long "Pit" sound will be heard. "Cool Only" mode is now disable. 17.2.2 Operation mode during Cooling Only Operation The table below shows the operation mode comparison when cooling only operation mode activated and deactivated. Operation mode AUTO HEAT Cooling Only Operation Mode Activated After 30s sampling, regardless of indoor intake or outdoor intake temperature judgement, the unit will run Cooling or DRY operation. The unit will stop and Power LED blinking. Cooling Only Operation Mode Deactivated After 30s sampling, the unit will judge the operation mode base on remote controller temperature setting and Indoor Intake Sensor (New Auto Mode) or Outdoor Intake Sensor (Old Auto Mode) The unit will run Heating operation. COOL The unit will run Cooling operation. The unit will run Cooling operation. DRY The unit will run DRY operation. The unit will run Dry operation. Force Heating The unit will run Force Cooling operation. AUTO (with Timer) HEAT (with Timer) COOL (with Timer) The unit will turn ON by the timer and run Auto Operation. After 30s sampling, regardless of indoor intake or outdoor intake temperature judgement, the unit will run Cooling or DRY operation. The unit will not turn ON by the Timer. Power LED blinking. The unit will turn ON by the Timer and run Cooling operation. DRY (with Timer) The unit will turn ON by the Timer and run DRY operation. ** Power LED blinking = 2.5s ON, 0.5s OFF The unit will run Force Heating operation. The unit will turn ON by the timer and run Auto Operation. After 30s sampling, the unit will judge the operation mode base on remote controller temperature setting and Indoor Intake Sensor (New Auto Mode) or Outdoor Intake Sensor (Old Auto Mode) The unit will turn ON by the timer and run Heating Operation. The unit will turn ON by the timer and run Cooling Operation. The unit will turn ON by the timer and run Cooling Dry Operation. 71 17.3 Remote Control Button 17.3.1 SET Button To check remote control transmission code and store the transmission code to EEPROM o Press "Set" button continuously for 10 seconds by using pointer o Press "Timer Set" button unit a "beep" sound is heard as confirmation of transmission code change. 17.3.2 RESET (RC) To clear and restore the remote control setting to factory default. o Press once to clear the memory 17.3.3 RESET (AC) To restore the unit's setting to factory default. o Press once to restore the unit's setting 17.3.4 TIMER To change indoor unit indicator's LED intensity: o Press continuously for 5 seconds. 17.3.5 TIMER To change remote control display from Degree Celsius (°C) to Degree Fahrenheit (°F) o Press continuously for 10 seconds. 17.3.6 CLOCK Button To change the remote control time format: o Press for more than 5 seconds 72 18. Troubleshooting Guide 18.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right. Normal Pressure and Outlet Air Temperature (Standard) Gas Pressure Outlet air PSI (kg/cm2G) Temperature (°F) Cooling Mode 130.53 ~ 174.04 (9 ~ 12) 53.6 ~ 60.8 Heating Mode 333.58 ~ 420.60 (23 ~ 29) 96.8 ~ 113 Condition: Indoor fan speed = High Outdoor temperature 95°F at cooling mode and 44.6°F at heating mode. Compressor operate at rated frequency Difference in the intake and outlet air temperatures More than 14.4°F (15 minutes after an operation is started.) at cooling mode. Above 25.2°F (15 minutes after an operation is started.) at heating mode Normal Measuring the air temperature difference Less than 14.4°F at the cooling mode. Less than 25.2°F at the cooling mode. Value of electric current during operation Higher than specified Lower than specified Dusty condenser preventing heat radiation Excessive amount of refrigerant Measuring electric current during operation Gas side pressure Cooling Mode High Low Low Low Heating Mode Low Low Inefficient compressor Insufficient refrigerant Clogged strainer or expansion valve Inefficient compressor Insufficient refrigerant Clogged strainer or capillary tube Measuring gas side pressure 73 18.1.1 Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air conditioner Low Pressure High Pressure Electric current during operating Low Pressure High Pressure Electric current during operating Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started. 74 18.2 Breakdown Self Diagnosis Function 18.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code) Once error occurred during operation, the unit will stop its operation, and Timer LED blinks. Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will ON again. In operation after breakdown repair, the Timer LED will not blink. The last error code (abnormality) will be stored in IC memory. 18.2.2 To Make a Diagnosis 1 Timer LED starts to blink and the unit automatically stops the operation. 2 Press the CHECK button on the remote control continuously for 5 seconds. 3 "- -" will be displayed on the remote control display. AUTO HEAT COOL DRY FAN FAN SPEED AIR SWING Note: Display only for "- -" (No signal transmission, no receiving sound and no Power LED blinking) 4 Press the TIMER or button on the remote control. The code "H00" (no abnormality) will be displayed and signal will be transmit to the main unit. 5 Each press of the button ( or ) will increase error code number and transmit error code signal to the main unit. "Check" button 6 When the latest abnormality code on the main unit and code transmitted from the remote control are matched, Power LED will light up for E C O N A V I OFF/ON AUTO COMFORT MODE TEMP POW ERFU QUIET L/ F A N SPEED AIR SWING TIMER ON 1 2 OFF SET CHECK CLOCK SET 3 CANCEL AC RC RESET 30 seconds and a "beep" sound (continuously for 4 seconds) will be heard. If no codes are matched, Power LED will light up for 0.5 seconds and no sound will be heard. 7 The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds. 8 The LED will be off if the unit is turned off or the RESET button on the main unit is pressed. 18.2.3 To Display Memorized Error Code (Protective Operation) 1 Turn power on. 2 Press the CHECK button on the remote control 3 "- -" will be displayed on the remote control display. Note: Display only for "- -" (No signal transmission, no receiving sound and no Power LED blinking) 4 Press the TIMER or button on the remote control. The code "H00" (no abnormality) will be displayed and signal will be transmit to the main unit. 5 Each press of the button ( or ) will increase error code number and transmit error code signal to the main unit. 6 When the latest abnormality code on the main unit and code transmitted from the remote control are matched, Power LED will light up for 30 seconds and a "beep" sound (continuously for 4 seconds) will be heard. If no codes are matched, Power LED will light up for 0.5 seconds and no sound will be heard. 7 The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds. 8 The same diagnosis can be repeated by turning power on again. 18.2.4 To Clear Memorized Error Code after Repair (Protective Operation) 1 Turn power on (in standby condition). 2 Press the AUTO button for 5 seconds (a "beep" sound is heard) on the main unit to operate the unit at Forced Cooling Operation Mode. 3 Press the CHECK button on the remote control for about 1 second with a pointed object to transmit signal to main unit. A "beep" sound is heard, and the Error Code is cleared. 18.2.5 Temporary Operation (Depending On Breakdown Status) 1 Press the Auto OFF/ON button on the main unit (a "beep" sound is heard) to operate the unit. (Remote control is enable again). 2 The unit can be temporarily be used until repaired. Error Code H23 H27, H28 Operation Cooling Cooling, Heating Temporary items Emergency Operation with limited power 75 18.3 Error Code Table Diagnosis Abnormality / display Protection control Abnormality Judgement Protection operation Problem Check location H00 No memory of failure -- Normal operation -- -- H11 Indoor/outdoor abnormal communication After operation for Indoor fan only 1 minute operation can start by entering into force cooling operation Indoor/outdoor communication not establish · Indoor/outdoor wire terminal · Indoor/outdoor PCB · Indoor/outdoor connection wire H12 Indoor unit capacity unmatched 90s after power supply -- Total indoor capability more · Indoor/outdoor connection wire than maximum limit or less · Indoor/outdoor PCB than minimum limit, or · Specification and combination number of indoor unit less table in catalogue than two. H14 Indoor intake air temperature sensor abnormality Continuous for 5s -- Indoor intake air temperature · Indoor intake air temperature sensor open or short circuit sensor lead wire and connector H15 Compressor temperature sensor abnormality Continuous for 5s -- Compressor temperature · Compressor temperature sensor sensor open or short circuit lead wire and connector H16 Outdoor current transformer (CT) abnormality -- -- Current transformer faulty or · Outdoor PCB faulty or compressor faulty compressor faulty H19 Indoor fan motor Continuous -- Indoor fan motor lock or · Fan motor lead wire and merchanism lock happen for 7 times feedback abnormal connector · Fan motor lock or block H23 Indoor heat exchanger Continuous for 5s temperature sensor abnormality -- Indoor heat exchanger · Indoor heat exchanger temperature sensor open or temperature sensor lead wire and short circuit connector H24 Indoor heat exchanger Continuous for 5s temperature sensor 2 abnormality H27 Outdoor air temperature Continuous for 5s sensor abnormality -- Indoor heat exchanger · Indoor heat exchanger temperature sensor 2 open temperature sensor 2 lead wire or short circuit and connector -- Outdoor air temperature · Outdoor air temperature sensor sensor open or short circuit lead wire and connector H28 Outdoor heat exchanger Continuous for 5s temperature sensor 1 abnormality -- Outdoor heat exchanger · Outdoor heat exchanger temperature sensor 1 open temperature sensor 1 lead wire or short circuit and connector H30 Outdoor discharge pipe Continuous for 5s temperature sensor abnormality -- Outdoor discharge pipe · Outdoor discharge pipe temperature sensor open or temperature sensor lead wire and short circuit connector H32 Outdoor heat exchanger Continuous for 5s temperature sensor 2 abnormality -- Outdoor heat exchanger · Outdoor heat exchanger temperature sensor 2 open temperature sensor 2 lead wire or short circuit and connector H33 Indoor / outdoor misconnection abnormality -- -- Indoor and outdoor rated · Indoor and outdoor units check voltage different H36 Outdoor gas pipe temperature sensor abnormality Continuous for 5s Heating protection Outdoor gas pipe operation only temperature sensor open or short circuit · Outdoor gas pipe temperature sensor lead wire and connector H37 Outdoor liquid pipe temperature sensor abnormality Continuous for 5s Cooling protection Outdoor liquid pipe operation only temperature sensor open or short circuit · Outdoor liquid pipe temperature sensor lead wire and connector H38 Indoor/Outdoor -- mismatch (brand code) -- Brand code not match · Check indoor unit and outdoor unit. H39 Abnormal indoor operating unit or standby units 3 times happen within 40 minutes -- Wrong wiring and connecting · Check the indoor/outdoor pipe, expansion valve connection wire and connection abnormality, indoor heat pipe. exchanger sensor open circuit · Indoor heat exchanger sensor lead wire and connector. · Expansion valve and lead wire and connector system. H41 Abnormal wiring or -- piping connection -- Wrong wiring and · Check indoor/outdoor connecting pipe, expansion connection wire and connection valve abnormality pipe · Expansion valve and lead wire and connector 76 Diagnosis Abnormality / display Protection control Abnormality Judgement Protection operation Problem Check location H59 ECONAVI sensor abnormality Continuous for 25s H64 Outdoor high pressure Continuous for 1 sensor abnormality minutes -- ECOANVI sensor open or · ECONAVI sensor (defective or short circuit disconnected) · ECONAVI PCB -- High pressure sensor open · High pressure sensor circuit during compressor · Lead wire and connector H97 Outdoor fan motor mechanism lock 2 times happen within 30 minutes -- Outdoor fan motor lock or · Outdoor fan motor lead wire and feedback abnormal connector · Fan motor lock or block H98 Indoor high pressure -- protection -- Indoor high pressure protection (Heating) · Check indoor heat exchanger · Air filter dirty · Air circulation short circuit H99 Indoor operating unit -- freeze protection -- Indoor freeze protection · Check indoor heat exchanger (Cooling) · Air filter dirty · Air circulation short circuit F11 4-way valve switching 4 times happen abnormality within 30 minutes -- 4-way valve switching abnormal · 4-way valve · Lead wire and connector. F17 Indoor standby units 3 times happen freezing abnormality within 40 minutes -- Wrong wiring and connecting · Check indoor/outdoor connection pipe, expansion valve wire and pipe leakage, indoor heat · Indoor heat exchanger sensor exchanger sensor open lead wire and connector circuit · Expansion valve lead wire and connector. F90 Power factor correction 4 times happen (PFC) circuit protection within 10 minutes -- Power factor correction · Outdoor PCB faulty circuit abnormal F91 Refrigeration cycle abnormality 2 times happen within 20 minutes -- Refrigeration cycle abnormal · Insufficient refrigerant or valve close F93 Compressor abnormal 4 times happen revolution within 20 minutes -- Compressor abnormal · Power transistor module faulty or revolution compressor lock F94 Compressor discharge 4 times happen overshoot protection within 30 minutes -- Compressor discharge · Check refrigeration system pressure overshoot F95 Outdoor cooling high 4 times happen pressure protection within 20 minutes -- Cooling high pressure protection · Check refrigeration system · Outdoor air circuit F96 Power transistor module 4 times happen overheating protection within 30 minutes -- Power transistor module · PCB faulty overheat · Outdoor air circuit (fan motor) F97 Compressor 3 times happen overheating protection within 30 minutes -- Compressor overheat · Insufficient refrigerant F98 Total running current 3 times happen protection within 20 minutes -- Total current protection · Check refrigeration system · Power source or compressor lock F99 Outdoor direct current Continuous -- Power transistor module · Power transistor module faulty or (DC) peak detection happen for 7 times current protection compressor lock Note: "" Frequency measured and fan speed fixed The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until "beep" sound heard following by pressing the CHECK button at remote control. Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Code Table) by using remote control or Auto OFF/ON button at indoor unit. However, the remote control signal receiving sound is changed from one "beep" to four "beep" sounds. 77 18.4 Self-diagnosis Method 18.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused Faulty indoor unit PCB. Faulty outdoor unit PCB. Indoor unit-outdoor unit signal transmission error due to wrong wiring. Indoor unit-outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units. Indoor unit-outdoor unit signal transmission error due to disturbed power supply waveform. Troubleshooting When abnormality indication starts again. Check the indoor-outdoor units' connection wires. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is there any wiring error? NO Disconnect terminal 3 wire and measure Vdc between terminal 2 & 3 from the outdoor unit. YES Correct the indoor-outdoor units connection wires. Is the Vdc fluctuate between 10~70 Vdc? NO YES Reconnect terminal 3 wire and measure Vdc between terminal 2 & 3 from the outdoor unit. Replace outdoor PCB. Is the Vdc fluctuate between 10~70Vdc? NO Replace indoor unit PCB. 78 18.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused Wrong models interconnected. Wrong indoor unit or outdoor unit PCBs mounted. Indoor unit or outdoor unit PCBs defective. Indoor-outdoor unit signal transmission error due to wrong wiring. Indoor-outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor and outdoor units. Troubleshooting When abnormality indication starts again. Check the indoor and outdoor unit connection wires. Is there any wiring error? NO Check indoor and outdoor units model number. YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Correct the indoor-outdoor unit's connection wires. Is indoor unit and outdoor unit model numbers matched? NO YES Check the spare part numbers of the indoor and outdoor unit PCBs and compare with their Part Lists. YES Matched compatibility? NO Match the compatible model(s). Change for the specified indoor or outdoor unit PCB. Replace the indoor and outdoor unit PCBs. 79 18.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? YES Check the indoor intake air temperature sensor: Plug out connector from the indoor unit PCB. Measure the resistance of the indoor intake air temperature sensor. Is the measured resistance of the indoor intake air temperature sensor matches the value specified in its characteristic chart? YES Sensor (Thermistor) 70 Characteristics 60 Pipe temp. Sensor Intake Air Temp. Sensor 50 40 30 20 10 0 14 32 50 68 86 104 122 Temperature (°F) For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. NO Connector poor contact. Correct the connection. NO Defect in indoor intake air temperature sensor. Replace the indoor intake air temperature sensor. Defect in indoor unit PCB. Replace the indoor unit PCB. Resistance (K) 80 18.4.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? YES Check the outdoor compressor temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor compressor temperature sensor. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. NO Connector poor contact. Correct the connection. Is the measured resistance of the outdoor compressor temperature sensor matches the value specified in its characteristic chart? YES Compressor Temp. Sensor (Thermistor) Charateristics 70 60 50 40 30 20 10 0 68 104 140 176 212 248 284 Temperature (°F) NO Defect in outdoor compressor temperature sensor. Replace the outdoor compressor temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. Resistance (K) 81 18.4.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused Lack of gas. Broken CT (current transformer). Broken Outdoor PCB. Troubleshooting When abnormality indication starts again. Refer to Service Manual Technical Graph for Temp vs Current and Pressure. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Suction pressure and running current is normal. In forced cooling, check suction pressure versus running current. Running current is much too low and suction pressure is much too high. Check & replace defected CT. Running current and suction pressure is very low. Compressor Lack Compression. Replace Compressor. Check for gas leaking source; Repair or replace defected part(s). Capillary tube/expansion valve blockage; Replace defected part(s). 82 18.4.6 H19 (Indoor Fan Motor DC Motor Mechanism Locked) Malfunction Decision Conditions The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or < 50rpm) Malfunction Caused Operation stops due to short circuit inside the fan motor winding. Operation stops due to breaking of wire inside the fan motor. Operation stops due to breaking of fan motor lead wires. Operation stops due to Hall IC malfunction. Operation error due to faulty indoor unit PCB. Troubleshooting When abnormality indication starts again. Turn off power supply and rotate fan by hand. Does fan rotate smoothly? YES Turn power supply on and operate fan. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. NO Replace fan motor. Does it rotate? NO Turn off power supply and disconnect fan motor connector, then turn power on. YES Stop fan motor. Check the rotation feedback output from fan motor. Check the output of fan motor from indoor PCB. Is the motor power supply voltage~325Vdc (pin 1 & 4) generated? Rotate the fan motor by hand, is the rotation NO feedback voltage 15Vdc (pin 7 & 4) generated? YES NO NO Is the motor control voltage 15Vdc (pin 5 & 4) generated? Operate the fan, is the rotation command voltage 1~5Vdc NO (pin 6 & 4) generated? YES Replace indoor PCB. Replace fan motor. 83 18.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Plug out connector from the indoor unit PCB. Measure the resistance of the indoor pipe temperature sensor. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the connector connection normal? NO YES Check the outdoor air temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor intake air temperature sensor. Connector poor contact. Correct the connection. Is the measured resistance of the outdoor intake air NO temperature sensor matches the value specified in its characteristic chart? YES Sensor (Thermistor) 70 Characteristics 60 Pipe temp. Sensor Intake Air Temp. Sensor 50 40 30 20 10 0 14 32 50 68 86 104 122 Temperature (°F) Defect in outdoor intake air temperature sensor. Replace the outdoor intake air temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. Resistance (K) 84 18.4.8 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. NO Is the connector connection normal? YES Check the outdoor air temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor air temperature sensor. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Is the measured resistance of the outdoor air temperature NO sensor matches the value specified in its characteristic chart? YES Sensor (Thermistor) Characteristics 70 Outdoor Air Sensor 60 Outdoor Heat Exchanger Sensor 50 40 30 20 10 0 14 32 50 68 86 104 122 Temperature (°F) Defect in outdoor air temperature sensor. Replace the outdoor air temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. Resistance (K) 85 18.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? No YES Check the outdoor heat exchanger temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor heat exchanger temperature sensor. Is the measured resistance of the outdoor heat exchanger temperature sensor matches the value specified in its No characteristic chart? YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in outdoor heat exchanger temperature sensor. Replace the outdoor heat exchanger temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. Resistance (K) Sensor (Thermistor) Characteristics 70 Outdoor Air Sensor 60 Outdoor Heat Exchanger Sensor 50 40 30 20 10 0 14 32 50 68 86 104 122 Temperature (°F) 86 18.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? NO YES Check the outdoor discharge pipe temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor discharge pipe temperature sensor. Is the measured resistance of the outdoor discharge pipe temperature sensor matches the value specified in its NO characteristic chart? YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in outdoor discharge pipe temperature sensor. Replace the outdoor discharge pipe temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. 87 18.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? NO YES Check the outdoor discharge pipe temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor discharge pipe temperature sensor. Is the measured resistance of the outdoor heat exchanger temperature sensor matches the value specified in its NO characteristic chart? YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in outdoor discharge pipe temperature sensor. Replace the outdoor discharge pipe temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. 88 18.4.12 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused Wrong models interconnected. Wrong indoor unit and outdoor unit PCBs used. Indoor unit or outdoor unit PCB defective. Troubleshooting When abnormality indication starts again. Check indoor and outdoor units model number. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the indoor and outdoor unit model number matched? NO Match the compatible model (follow specification). Check indoor and outdoor PCB part number and compare if YES they matched the part list. NO Change for the specified indoor or outdoor unit PCB. Replace the indoor and outdoor unit PCB. 89 18.4.13 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? NO YES Check the outdoor discharge pipe temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor discharge pipe temperature sensor. Is the measured resistance of the outdoor gas pipe temperature sensor matches the value specified in its NO characteristic chart? YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in outdoor discharge pipe temperature sensor. Replace the outdoor discharge pipe temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. 90 18.4.14 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused Faulty connector connection. Faulty sensor. Faulty PCB. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? NO YES Check the outdoor discharge pipe temperature sensor: Plug out connector from the outdoor unit PCB. Measure the resistance of the outdoor discharge pipe temperature sensor. Is the measured resistance of the outdoor liquid pipe temperature sensor matches the value specified in its NO characteristic chart? YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in outdoor discharge pipe temperature sensor. Replace the outdoor discharge pipe temperature sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. 91 18.4.15 H59 (Human Activity Sensor Abnormality) Malfunction Decision Conditions Feedback signal of human activity sensor. Malfunction Caused Feedback signal is fixed at 0 VDC or 5 VDC continuously for 25 seconds during ECONAVI or AUTO COMFORT operation. Feedback signal is detected during ECONAVI or AUTO COMFORT off. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? NO YES Check if the feedback signal of human activity sensor (pin 2 and 3) is normal. When no motion, feedback is 0V. NO When motion detected, feedback is between 1.5VDC to 2.5VDC. YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in human activity sensor. Replace the human activity sensor. Defect in outdoor unit PCB. Replace the outdoor unit PCB. 92 18.4.16 H70 (Light Sensor Abnormality) Malfunction Decision Conditions Feedback signal of light sensor. Malfunction Caused Feedback value is 0 VDC continuously. Troubleshooting When abnormality indication starts again. Check the connector connection: Turn off the power. Check the connector connection. Is the connector connection normal? NO YES Check if the feedback signal of sunlight sensor (pin 11 and 13) is normal. NO Depends on indoor light intensity, feedback voltage = 0.06 ~ 4.8 VDC (from dim to bright). YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Connector poor contact. Correct the connection. Defect in sunlight sensor. Replace the sinlight sensor. Defect in indoor unit PCB. Replace the indoor unit PCB. 93 18.4.17 H97 (Outdoor Fan Motor DC Motor Mechanism Locked) Malfunction Decision Conditions The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused Operation stops due to short circuit inside the fan motor winding. Operation stops due to breaking of wire inside the fan motor. Operation stops due to breaking of fan motor lead wires. Operation stops due to Hall IC malfunction. Operation error due to faulty outdoor unit PCB. Troubleshooting When abnormality indication starts again. Turn off power supply and rotate fan by hand. Does fan rotate smoothly? YES Turn power supply on and operate fan. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. NO Replace fan motor. Does it rotate? NO Turn off power supply and disconnect fan motor connector, then turn power on. YES Stop fan motor. Check the rotation feedback output from fan motor. Check the output of fan motor from outdoor PCB. Is the motor power supply voltage ~325Vdc (pin 7 & 4) generated? Is the motor control voltage 15Vdc (pin 3 & 4) generated? Rotate the fan motor by hand, is the rotation feedback NO voltage 15 Vdc (pin 1 & 4) generated? YES NO NO Operate the fan, is the rotation command voltage 1~5Vdc (pin 2 NO & 4) generated? YES Replace outdoor PCB. Replace fan motor. 94 18.4.18 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. Phenomena: unit is stopping and re-starting very often in heating mode. Malfunction Caused Indoor heat exchanger thermistor. Clogged air filter or heat exchanger. Over-bent pipe (liquid side). Troubleshooting When abnormality indication starts again. Check the indoor unit intake air filter. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. YES Is the air filter dirty? NO Check the dust accumulation on the indoor unit heat exchanger. Clean the air filter. Is the indoor unit heat exchanger dirty? YES NO Check the indoor pipe temperature thermistor: Plug out connector (CN-TH) from the indoor unit PCB. Measure the resistance of the indoor heat exchanger temperature thermistor. Clean the indoor unit heat exchanger. Is the measured resistance of the indoor pipe temperature thermistor matches the value specified in its characteristic NO chart? YES Defect in indoor pipe temperature thermistor. Replace the indoor pipe temperature thermistor. Check the piping & installation condition. Replace piping / reinstall the unit if necessary. 95 18.4.19 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C). Malfunction Caused Air short circuit at indoor unit. Clogged indoor unit air filter. Dust accumulation on the indoor unit heat exchanger. 2/3 way valve closed. Faulty indoor unit fan motor. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer. Faulty indoor pipe temperature sensor. Faulty indoor unit PCB. Troubleshooting When abnormality indication starts again. Check the air passage. Is there any short circuit? YES For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Provide sufficient air passage. Check the indoor unit air filter. Is the air filter dirty? YES NO Check the dust accumulation on the indoor unit heat exchanger. Is the indoor unit heat exchanger dirty? YES NO Check if 2/3 way valve is closed? YES NO Check if indoor fan motor operates normally? NO YES Check for gas leakage, Is oil oozing out from the 2/3 way YES valve? Check if expansion valve or strainer clogged (ice formed)? YES NO Check the indoor pipe temperature sensor. NO Does it conform to the sensor characteristic chart? YES Clean the air filter. Clean the indoor unit heat exchanger. Open the 2/3 way valve. Replace the indoor unit fan motor and/or indoor unit PCB. Repair the pipe flare or union nuts. Reclaim and recharge refrigerant. Reclaim and recharge with correct amount of refrigerant. Replace the indoor pipe temperature sensor. Replace the indoor unit PCB. 96 18.4.20 F11 (4-way Valve Switching Failure) Malfunction Decision Conditions When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused Indoor heat exchanger (pipe) thermistor 4-way valve malfunction Troubleshooting When abnormality starts again. Check the indoor pipe temperature thermistor: Plug out connector (CN-TH) from the indoor unit PCB. Measure the resisitance of the indoor heat exchanger temperature thermistor. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the indoor pipe NO temperature thermistor matches the value specified in its characteristic chart? YES Problem occurs in heating mode only? Defect in indoor pipe temperature thermistor. Replace the indoor pipe temperature thermistor. YES NO, it happen in cooling/dry as well. Is 4-way solenoid valve being energised? NO YES Outdoor PCB fault Replace Outdoor PCB. The 4-way valve may have been damaged or wrongly connected between discharge and suction tube. Check connecting tubes to 4-way valve. 4-way valve not working (not energize). Check CN-HOT connection (4-way valve connector). 4 WAYS VALVE YELLOW YELLOW COIL COMPLETE 1 CN-HOT (WHT) 2 No Good. Reconnect CN-HOT (4-way valve connector). OK Check V-coil attach to solenoid valve. OK Check valve v-coil continuity. OK No Good. Attach and screw the V-coil to solenoid valve. No continuity (open). V-coil fault Replace Remove CN-HOT. V-coil only. Measure continuity of the coil. CN-HOT (VH3-2) 123 4 WAYS VALVE Measure voltage supplied to CN-HOT at the start of heating. OK (Depending on 4-way valve model). Reverse solenoid value faulty Replace the 4-way valve. No supply. Outdoor PCB fault Replace Outdoor PCB. * Check gas side pipe for hot gas flow in cooling mode 97 18.4.21 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions When the different between indoor intake air temperature and indoor pipe temperature is above 50°F or indoor pipe temperature is below 30.2°F Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s). Malfunction Caused Wrong wiring connection Faulty sensor Faulty expansion valve Troubleshooting When F17 indication happens. Check the system wiring connection. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the wiring connection ok? NO YES Check the indoor intake air and indoor pipe temperature sensors. NO Does it conform to the sensor characteristic chart? YES Check the expansion valve. Perform Auto Wiring to correct the wiring connection. Replace the indoor intake air or indoor pipe temperature sensor. Is the expansion valve ok? NO YES Replace the solenoid coil or expansion valve. Replace outdoor unit PCB. 98 18.4.22 F90 (Power Factor Correction Protection) Malfunction Decision Conditions To maintain DC voltage level supply to power transistor. To detect high DC voltage level after rectification. Malfunction Caused During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors. When DC voltage detected is LOW, transistor switching will turn ON by controller to push-up the DC level. When DC voltage detected is HIGH (391Vdc 425Vdc), active LOW signal will send by the controller to turn OFF relay RY-C. Troubleshooting When abnormality indication starts again. Reset the error code and turn on the unit again. Is AC power supply normal fluctuation? YES Verify PFC abnormality by measuring DC voltage between DCP(+) and DCN(-) at the capacitor PCB. Is the DC voltage between DCP(+) and DCN(-) normal? NO (391.2Vdc ~ 425Vdc) Confirm the DC voltage between CN-FM 1 and 4 when compressor is running. Normal voltage range should be between 265-325Vdc. NO AC power supply abnormal surge. YES (~280Vdc) Defect in PFC circuitry. Replace the outdoor unit PCB. Is the DC voltage between CN-FM1 and 4 of the outdoor fan motor normal? NO Defect in outdoor fan motor. Replace outdoor fan motor. Check the compressor winding resistance: Turn off the power and disconnect the harnesses U, V, and W. Measure the winding resistance between U-V, V-W, and W-U. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Are the compressor's winding resistance (U-V, V-W, U-W) uniform? YES Check the reactor impedance. NO Defect in compressor. Replace compressor. Is the impedence of the reactor low? YES Defect in reactor. Replace reactor. 99 18.4.23 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused Lack of gas. 3-way valve close. Troubleshooting When F91 indication happens. Check 3 way valve. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. 3-way valve opened? YES Check for gas leaking source (Refer H16). Gas leaking? NO, gas amount is OK. Check other parts in refrigeration cycles. NO, closed. YES Open 3 way valve. Check for gas leaking source; Repair or replace defected part(s). Re-claim and then re-charge the right amount. 100 18.4.24 F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused Compressor terminal disconnect. Faulty Outdoor PCB. Faulty compressor. Troubleshooting When F93 indication happens. Check the U, V and W connector connection: - Turn OFF the power. - Check the U, V and W connector connection at outdoor PCB and compressor terminal. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the connector connection normal? NO YES Disconnect the harnesses U, V and W from the compressor terminal. Connector poor contact. Correct the connection. From the disconnected harnesses U, V and W, correct them to the inverter checker. Turn ON the power and operate the system. Check the inverter checker 6 LEDs blinking condition. Is the blinking of the 6 LEDs in same NO sequence/condition. YES IPM defective. Replace outdoor unit PCB. Replace compressor. 101 18.4.25 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused Outdoor heat exchanger temperature rise due to short-circuit of hot discharge air flow. Outdoor heat exchanger temperature rise due to defective of outdoor fan motor. Outdoor heat exchanger temperature rise due to defective outdoor heat exchanger thermistor. Outdoor heat exchanger temperature rise due to defective of outdoor unit PCB. Troubleshooting When abnormality indication starts again. Check the outdoor unit installation condition (during cooling or soft dry operation). Is there any improper heat radiation? NO Reset the error code and turn on the unit again. YES Reinstall the outdoor unit. Remove the obstacle(s). Clean the outdoor heat exchanger. Is the outdoor fan motor operating? NO Measure the AC/DC voltage between pins of connector CN-FM outdoor unit PCB. YES Check the outdoor heat exchanger thermistor: Turn off the power and disconnect the connector of outdoor heat exchanger thermistor from the PCB. Measure the resistance of the outdoor heat exchanger thermistor. Is the voltage supplied to the outdoor fan motor normal? NO (0V) Defect in outdoor unit PCB. Replace the outdoor unit PCB. YES (240VAC / 265~326VDC) Defect in outdoor fan motor. Replace the outdoor fan motor. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the outdoor heat exchanger thermistor matches the value specified in its characteristic chart? Defect in outdoor heat exchanger NO thermistor. Replace the outdoor heat exchanger thermistor. YES Defect in outdoor unit PCB. Replace the outdoor unit PCB. 102 18.4.26 F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooling and heating, when IPM temperature data (212°F) is detected by the IPM temperature sensor. Multi Models only o Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. o Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (194°F) is detected by the heat sink temperature sensor. Malfunction Caused IPM overheats due to short circuit of hot discharge air flow. IPM overheats due to defective of outdoor fan motor. IPM overheats due to defective of internal circuitry of IPM. IPM overheats due to defective IPM temperature sensor. Multi Models Only o Compressor OL connector poor contact. o Compressor OL faulty. Troubleshooting When F96 indication happens. Check the outdoor unit installation condition (during cooling or soft-dry operation). Is there any improper heat radiation? NO Is outdoor fan motor operating? YES YES NO For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Reinstall the outdoor unit. Remove the obstacle(s). Clean the outdoor heat exchanger. Replace the outdoor fan motor. Defect in IPM. Replace the outdoor unit PCB. 103 18.4.27 F97 (Compress or Overheating) Malfunction Decision Conditions During operation of cooling and heating, when compressor tank temperature data (233.6°F) is detected by the compressor tank temperature sensor. Malfunction Caused Faulty compressor tank temperature sensor 2/3 way valve closed Refrigerant shortage (refrigerant leakage) Faulty outdoor unit PCB Faulty compressor Troubleshooting When F97 indication happens. Check the compressor tank temperature sensor. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Does it conform to the sensor characteristic chart? YES 2/3 way valve closed? NO Check for gas leakage. NO YES Replace the compressor tank temperature sensor. Open the 2/3 way valve. Oil oozing out from the 2/3 way valve? NO Check if expansion valve or strainer clogged (ice formed). NO Reclaim and recharge for a specified amount of refrigerant. YES YES Repair the pipe flare or union nuts. Reclaim and recharge refrigerant. Replace expansion valve and/or strainer. Reclaim and recharge refrigerant. Refrigerant cycle abnormality error again? NO YES Replace outdoor unit PCB. Replace outdoor unit compressor. Procedure complete. 104 18.4.28 F98 (Input Over Current Detection) Malfunction Decision Conditions During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running. Malfunction Caused Excessive refrigerant. Faulty outdoor unit PCB. Troubleshooting When F98 indication happens. Get restarted and measure the input current. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. NO Input current > limit? YES Turn off power supply. Check the main circuit electrolytic capacitor. Replace the outdoor unit PCB. Normal? NO Check refrigerant amount. NO Excess refrigerant? NO YES YES Repair the pipe flare or union nuts. Reclaim and recharge refrigerant. Reclaim and recharge with correct amount of refrigerant. Replace outdoor unit PCB. Replace outdoor unit compressor. 105 18.4.29 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused DC current peak due to compressor failure. DC current peak due to defective power transistor(s). DC current peak due to defective outdoor unit PCB. DC current peak due to short circuit. Troubleshooting When abnormality indication starts again. Reset the error code and turn on the unit again. Is there a sound when compressor starts? NO (Compressor stops) Outdoor electronic circuit defect due to power transistor short. Replace the outdoor unit PCB. YES Is compressor vibration even? NO (Quite a lot of vibration at start operation) YES Is there no change even if all refrigerant is discharged? NO (Normal) YES (Stops after 2, 3 seconds of noise during operation) Check the compressor winding resistance: Turn off the power and disconnect the harnesses U, V and W. Measure the winding resistance between U-V, V-W and W-U. Amplification IC defect. Diode defect. Defect in microcontroller. Replace the outdoor unit PCB. Excessive amount of refrigerant. For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Are the compressor's winding resistance (U-V, V-W or U-W) shorted? YES NO (Normal) Compressor defective due to mechanical locked. Replace compressor. Compressor defective due to winding shorted. Replace compressor. 106 19. Disassembly and Assembly Instructions WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 19.1 CS-E9RKUAW CS-E12RKUAW 19.1.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 19.1.1.1 To remove front grille 3. Hold both sides of the front grille and remove it by pulling up and toward yourself gently. 2. Remove 2 caps and 2 screws at the bottom of discharge vane. Figure 1 19.1.1.2 To remove power electronic controller 1. Lift to open the vertical vane gently. 2 Hooks (left hand side) 4. Remove the eco sensor complete by screw. Figure 2 5. Remove the control board cover by releasing the 2 hooks. 107 9. Pull out the main electronic controller and power electronic controller halfway. 10. Detach 3 or 4 connectors as labeled from the electronic controller. Then pull out main controller gently 8. Remove screw to remove terminal board complete. 7. Detach the CN-DISP connector then remove the indicator complete. 6. Detach the Earth wire Figure 3 19.1.1.3 To remove discharge grille Figure 4 CN-FM CN-RMT CN-STM1 CN-MSENS CN-DISP CN-TH 11. Pull out to remove the drain hose from the discharge grille 19.1.1.4 12. Then pull the discharge grille downward gently to dismantle it Figure 5 To remove control board 13. Remove 4 screws holding the control board then pull out the control board. Figure 6 108 19.1.1.5 To remove cross flow fan and indoor fan motor Figure 7 14. Remove the screw that holding the cross flow fan and fan motor axis. 16. Remove the bearing by pulling it out gently 15. Remove the screw from the evaporator. Figure 8 17. Push the holdfast to the left and lift up the evaporator. Evaporator Cross flow fan 18. Remove the cross flow fan from the unit by pulling it to the left and downward. Figure 9 19. Fan motor can be removed after the removal of cross flow fan. Reminder: To reinstall the fan motor, adjust the fan motor connector to 45° towards you before fixing control board. 109 Cross Flow Fan Figure 10 Reminder: To reinstall the cross flow fan, ensure cross flow fan is in line as shown in figure 10 110 WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 19.2 CS-E18RKUAW CS-E24RKUAW 19.2.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 19.2.1.1 To remove front grille 2. Remove 3 caps and 4 screws at the bottom of the discharge vane. 3. Hold both sides of the front grille and remove it by pulling up and toward you gently. 1. Lift to open the horizontal vane and intake grille gently. Figure 1 19.2.1.2 To remove power electronic controller 2 Hooks (left hand side) 5. Remove the control board cover by releasing the 2 hooks. 4. Remove the eco sensor complete by screw. Figure 2 9. Pull out the main electronic controller and power electronic controller halfway. 10. Detach 3 or 4 connectors as labeled from the electronic controller. Then pull out main controller gently 8. Remove screw to remove terminal board complete. Figure 3 7. Detach the CN-DISP connector then remove the indicator complete. 6. Detach the Earth wire 111 Figure 4 CN-FM CN-RMT CN-STM2 CN-STM1 CN-MSENS CN-DISP CN-TH 19.2.1.3 To remove discharge grille 11. Pull out to remove the drain hose from the discharge grille. 19.2.1.4 12. Then pull the discharge grille downward gently to dismantle it. Figure 5 To remove control board 13. Remove 4 screws holding the control board then pull out the control board. Figure 6 19.2.1.5 To remove cross flow fan and indoor fan motor Figure 7 14. Remove the screw that holding the cross flow fan and fan motor axis. 112 16. Remove the bearing by pulling it out gently. 15. Remove the screw from the evaporator. Figure 8 17. Push the holdfast to the left and lift up the evaporator. Evaporator Cross flow fan 18. Remove the cross flow fan from the unit by pulling it to the left and downward. Figure 9 19. Fan motor can be removed after the removal of cross flow fan. Reminder: To reinstall the fan motor, adjust the fan motor connector to 45° towards you before fixing control board. Cross Flow Fan Figure 10 113 Reminder: To reinstall the cross flow fan, ensure cross flow fan is in line as shown in figure 10 19.3 Outdoor Electronic Controller Removal Procedure 19.3.1 CU-E9RKUA CU-E12RKUA Caution! When handling electronic controller, be careful of electrostatic discharge. 1 Remove the 3 screws of the Top Panel. 5 Remove the Control Board as follows: Screw Top Panel Screws Control Board Release 3 Terminal Connectors and Earth Wire Screw Fig. 1 2 Remove the 6 screws of the Front Panel. Screws Front Panel Release 5· Connectors Release Earth Wire Screw Fig. 4 Remove the Terminal Cover and 3 Terminal Compressor Remove 2 Screws Screws Fig. 2 3 Remove the screw of the Terminal Board Cover. 4 Remove the Top Cover of the Control Board by 4 hooks. Hooks Top Cover Hooks Control Board Compressor Fig. 5 Electronic Controller Control Board Control Board Fig. 3 Terminal Board Cover Screw 114 Fig. 6 19.3.2 CU-E18RKUA CU-E24RKUA Caution! When handling electronic controller, be careful of electrostatic discharge. 1 Remove the 8 screws of the Top Panel. 4 Remove the Control Board. Screws Screws Release the hooks Control board Release 7 terminal connectors Screws Fig. 1 2 Remove the 8 screws of the Front Panel. Release 8 connectors Fig. 4 5 Remove the 6 screws of the Electronic Controller. Screws Screws Fig. 2 3 Remove the Top Cover of the Electronic Controller. Hooks Top Cover Fig. 5 Caution! When handling electronic controller, be careful of electrostatic discharge. Fig. 3 115 20. Technical Data Technical data provided are based on the air conditioner running under free frequency. 20.1 Cool Mode Performance Data Unit setting: Standard piping length, Hi Fan, Cool mode at 60.8°F Voltage: 230V 20.1.1 CS-E9RKUAW CU-E9RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F) DB WB -20 (-4) -10 (14) 0 (32) 5 (41) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 10120 9156 508 10120 9156 516 10071 9237 504 10280 9429 476 (80.6) 22 (71.6) 10694 6508 540 10694 6508 549 10760 6603 517 11617 7015 386 23 16 (60.8) 9471 9376 485 9471 9376 493 9153 9062 527 10369 10265 424 (73.4) 18 (64.4) 9962 6484 498 9962 6484 506 9648 6373 530 10193 6706 447 20 13 (55.4) 8999 8909 525 8999 8909 534 8679 8592 547 7954 7874 375 (68) 16 (60.8) 9274 6447 535 9274 6447 544 9299 6400 525 8372 6037 355 Indoor (°C / °F) Outdoor (°C / °F) DB WB 16 (60.8) 25 (77) 35 (95) TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 10698 9191 422 9450 8466 617 9008 8558 690 (80.6) 22 (71.6) 11048 6569 420 10314 5946 590 9591 5942 678 23 16 (60.8) 9488 9393 473 8560 8474 633 8301 8218 699 (73.4) 18 (64.4) 10035 6503 456 9406 5994 616 8515 6133 690 20 13 (55.4) 7031 6961 209 6969 6899 478 7628 7552 702 (68) 16 (60.8) 8062 5730 402 8377 5865 630 7752 5886 695 46 (114.8) TC SHC IP 7391 6622 829 8067 4650 792 6695 6628 850 7357 4689 827 5174 5122 642 6552 4588 847 20.1.2 CS-E12RKUAW CU-E12RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F) DB WB -20 (-4) -10 (14) 0 (32) 5 (41) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 12880 11530 678 12880 11530 689 12818 11632 671 13084 11874 635 (80.6) 22 (71.6) 13610 8196 720 13610 8196 732 13694 8315 689 14785 8834 515 23 16 (60.8) 12053 11933 647 12053 11933 657 11649 11533 703 13196 13064 565 (73.4) 18 (64.4) 12679 8165 664 12679 8165 674 12279 8026 706 12972 8445 596 20 13 (55.4) 11453 11339 700 11453 11339 712 11046 10935 729 10123 10022 500 (68) 16 (60.8) 11803 8119 714 11803 8119 725 11834 8060 700 10655 7603 474 Indoor (°C / °F) Outdoor (°C / °F) DB WB 16 (60.8) 25 (77) 35 (95) 46 (114.8) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 13616 11574 563 12028 10662 823 11465 10777 920 9407 8843 1105 (80.6) 22 (71.6) 14061 8272 560 13126 7487 786 12206 7483 904 10016 6140 1086 23 16 (60.8) 12075 11954 631 10894 10785 844 10565 10459 932 (73.4) 18 (64.4) 12772 8190 608 11971 7549 821 10837 7723 919 8669 8892 8582 6337 1120 1104 20 13 (55.4) 8948 8859 279 8870 8781 638 9708 9611 935 7966 7886 1123 (68) 16 (60.8) 10260 7216 536 10662 7386 841 9867 7413 926 8096 6082 1113 116 20.1.3 CS-E18RKUAW CU-E18RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) Outdoor (°C / °F) DB WB -20 (-4) -10 (14) 0 (32) 5 (41) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 21188 17930 935 21167 17913 924 21141 18234 896 21082 17831 888 (80.6) 22 (71.6) 24306 14656 817 24282 14641 807 23146 14323 936 21589 13429 934 23 16 (60.8) 18646 18460 1032 18628 18442 1019 19803 19605 849 18879 18690 941 (73.4) 18 (64.4) 20846 13794 945 20825 13780 933 23204 14860 739 21619 13003 982 20 13 (55.4) 16414 16250 1024 16398 16234 1011 16292 16129 672 15704 15547 803 (68) 16 (60.8) 16372 12160 1182 16356 12148 1168 17139 12557 699 18527 13408 689 Indoor (°C / °F) DB WB 27 (80.6) 23 (73.4) 20 (68) 19 (66.2) 22 (71.6) 16 (60.8) 18 (64.4) 13 (55.4) 16 (60.8) TC 21000 21726 19472 21253 17023 19378 16 (60.8) SHC 18063 14368 19278 13726 16853 15270 IP 876 879 876 878 734 1189 TC 18377 19983 17002 18690 15925 19083 Outdoor (°C / °F) 25 (77) 35 (95) SHC IP TC SHC 16061 1195 17197 15993 12710 1208 18977 9991 16832 1172 15737 15580 12233 1185 17325 11865 15765 1171 14512 14366 13310 1503 16210 6590 IP 1300 1317 1373 1398 1349 1469 46 (114.8) TC SHC IP 11804 10978 1169 13026 6858 1184 10802 10694 1234 11892 8144 1257 9961 9861 1212 11126 4523 1321 20.1.4 CS-E24RKUAW CU-E24RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) DB WB 27 (80.6) 23 (73.4) 20 (68) 19 (66.2) 22 (71.6) 16 (60.8) 18 (64.4) 13 (55.4) 16 (60.8) TC 29512 33855 25972 29036 22863 22804 -20 (-4) SHC 24706 20194 25712 19007 22634 16755 IP 1691 1477 1866 1708 1851 2137 TC 29483 33821 25946 29006 22840 22781 Outdoor (°C / °F) -10 (14) SHC IP TC 24681 1670 29446 20174 1459 32240 25686 1843 27583 18988 1687 31474 22612 1828 22693 16738 2111 23873 0 (32) SHC 25124 19735 27307 20475 22466 17302 IP 1621 1692 1534 1335 1214 1263 TC 29365 30071 26296 30112 21873 25806 5 (41) SHC 24568 18504 26033 17917 21654 18475 IP 1606 1688 1701 1775 1451 1246 Indoor (°C / °F) DB WB 27 (80.6) 23 (73.4) 20 (68) 19 (66.2) 22 (71.6) 16 (60.8) 18 (64.4) 13 (55.4) 16 (60.8) 16 (60.8) TC SHC 29250 24889 30261 19797 27122 26851 29602 18912 23711 23474 26991 21041 IP 1584 1589 1584 1588 1326 2149 TC 25596 27833 23682 26032 22181 26580 Outdoor (°C / °F) 25 (77) 35 (95) SHC IP TC SHC 22130 2159 23953 22037 17513 2183 26432 13767 23445 2119 21920 21700 16855 2141 24131 16348 21959 2117 20212 20010 18340 2717 22578 9080 IP 2350 2381 2481 2527 2438 2655 46 (114.8) TC SHC IP 16441 15126 2113 18143 9449 2140 15046 14895 2231 16563 11221 2272 13874 13735 2192 15497 6233 2387 TC : Total capacity (BTU) SHC: Sensible Heat Capacity (BTU) IP: Input Power (Watt) 117 20.1.5 CS-E9RKUAW CU-E9RKUA Maximum Capacity Indoor (°C / °F) Outdoor (°C / °F) DB WB -20 (-4) -10 (14) 0 (32) 5 (41) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 10120 8963 508 10120 8963 516 10073 9043 504 10281 9231 476 (80.6) 22 (71.6) 10694 6372 540 10694 6372 549 10758 6463 517 11615 6866 386 23 16 (60.8) 9472 9377 485 9472 9377 493 9155 9063 527 10369 10266 424 (73.4) 18 (64.4) 9963 6348 498 9963 6348 506 9646 6238 530 10192 6565 447 20 13 (55.4) 8998 8908 525 8998 8908 534 8677 8590 547 8268 8185 412 (68) 16 (60.8) 9274 6312 535 9274 6312 544 9298 6265 525 9046 6386 430 Indoor (°C / °F) DB WB 16 (60.8) TC SHC IP 27 19 (66.2) 10748 9039 432 (80.6) 22 (71.6) 11601 6753 500 23 16 (60.8) 10305 10202 530 (73.4) 18 (64.4) 10271 6516 481 20 13 (55.4) 7725 7648 274 (68) 16 (60.8) 8766 6099 482 Outdoor (°C / °F) 25 (77) 35 (95) TC SHC IP TC SHC IP 10739 9418 730 10236 9520 850 11301 6378 670 10898 6610 835 9830 9732 751 9433 9339 861 9963 6216 671 9676 6822 850 7766 7688 564 8668 8582 864 8906 6104 691 8809 6548 856 46 (114.8) TC SHC IP 7391 6873 829 8066 4892 792 6695 6628 850 7609 5365 842 6057 5996 768 6773 5034 864 20.1.6 CS-E12RKUAW CU-E12RKUA Maximum Capacity Indoor (°C / °F) Outdoor (°C / °F) DB WB -20 (-4) -10 (14) 0 (32) 5 (41) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 12898 11300 688 12929 11327 701 12884 11443 682 13157 11686 645 (80.6) 22 (71.6) 13642 8041 734 13662 8053 746 13744 8168 699 14846 8682 520 23 16 (60.8) 12127 12005 659 12127 12005 669 11687 11570 721 13236 13103 575 (73.4) 18 (64.4) 12720 8018 676 12720 8018 684 12318 8677 718 13017 8294 609 20 13 (55.4) 11506 11391 721 11506 11391 723 11103 10992 738 10492 10387 534 (68) 16 (60.8) 11871 7992 722 11871 7992 735 11898 7931 719 10697 7470 480 Indoor (°C / °F) DB WB 16 (60.8) TC SHC IP 27 19 (66.2) 13666 11369 573 (80.6) 22 (71.6) 14263 8212 574 23 16 (60.8) 12250 12127 651 (73.4) 18 (64.4) 13004 8161 628 20 13 (55.4) 9499 9404 305 (68) 16 (60.8) 10721 7380 570 TC 13140 14635 11721 12802 9998 11038 Outdoor (°C / °F) 25 (77) SHC IP TC 11400 945 13307 8170 921 14168 11603 960 12263 7901 921 12579 9898 756 11269 7484 919 11452 35 (95) SHC 12243 8500 12140 8774 11156 8421 IP 1150 1130 1165 1149 1169 1158 46 (114.8) TC SHC IP 10079 9273 1234 10219 6131 1165 8721 8634 1198 9233 6440 1198 8175 8094 1254 8384 6165 1196 118 20.1.7 CS-E18RKUAW CU-E18RKUA Maximum Capacity Indoor (°C / °F) Outdoor (°C / °F) DB WB -20 (-4) -10 (14) 0 (32) 5 (41) TC SHC IP TC SHC IP TC SHC IP TC SHC IP 27 19 (66.2) 21189 17546 935 21166 17526 924 21142 17843 896 21084 17448 888 (80.6) 22 (71.6) 24305 14340 817 24281 14326 807 23148 14016 936 21930 13348 956 23 15.7 (60.26) 18647 18461 1059 18627 18441 1046 19804 19606 871 19869 19670 1020 (73.4) 18.4 (65.12) 20845 13497 969 20824 13483 958 23203 14540 758 22131 13801 1005 20 13.3 (55.94) 16429 16265 1051 16467 16302 1038 16344 16181 689 15969 15809 855 (68) 15.8 (60.44) 16395 11915 1213 16354 11885 1198 17238 12358 717 18699 13241 735 Indoor (°C / °F) DB WB 27 (80.6) 23 (73.4) 20 (68) 19 (66.2) 22 (71.6) 15.7 (60.26) 18.4 (65.12) 13.3 (55.94) 15.8 (60.44) 16 (60.8) TC SHC 21002 17676 22971 14257 20101 19900 21595 13647 17252 17079 21220 13940 IP 896 972 945 921 785 1340 TC 20650 22493 18876 20343 17043 20423 25 (77) SHC 17660 13999 18687 13029 16872 13938 Outdoor (°C / °F) IP 1395 1415 1358 1341 1301 1682 TC 19790 21839 18110 19937 16700 18654 35 (95) SHC 18009 11251 17929 13360 16533 7421 IP 1600 1621 1689 1720 1660 1808 46 (114.8) TC SHC IP 11803 10740 1169 13024 6710 1184 10803 10695 1234 12014 8051 1290 10107 10006 1268 11332 4508 1387 20.1.8 CS-E24RKUAW CU-E24RKUA Maximum Capacity Indoor (°C / °F) DB WB 27 (80.6) 23 (73.4) 20 (68) 19 (66.2) 22 (71.6) 15.7 (60.26) 18.4 (65.12) 13.3 (55.94) 15.8 (60.44) TC 29529 33889 26041 29126 22981 22865 -20 (-4) SHC 24182 19776 25781 18651 22751 16434 IP 1698 1510 1886 1721 1883 2158 TC 29508 33886 26014 29109 22967 22899 Outdoor (°C / °F) -10 (14) SHC IP TC 24166 1681 29484 19774 1511 32286 25754 1858 27645 18640 1721 31678 22737 1856 22865 16459 2164 24103 0 (32) SHC 24610 19334 27369 19633 22636 17090 IP 1631 1699 1559 1374 1264 1301 TC 29396 30549 26693 30211 22118 25973 5 (41) SHC 24059 18389 26426 18633 21896 18190 IP 1621 1756 1721 1801 1498 1358 Indoor (°C / °F) DB WB 27 (80.6) 23 (73.4) 20 (68) 19 (66.2) 22 (71.6) 15.7 (60.26) 18.4 (65.12) 13.3 (55.94) 15.8 (60.44) 16 (60.8) TC SHC 29283 24375 30371 18644 27338 27065 29757 18598 23957 23717 29269 19017 IP 1591 1618 1654 1611 1336 2451 TC 28181 30348 26106 27928 23626 28170 25 (77) SHC 23835 18680 25845 17690 23389 19014 Outdoor (°C / °F) IP 2541 2481 2431 2464 2400 3000 TC 27297 30122 24980 27499 23034 25730 35 (95) SHC 24567 15347 24730 18225 22804 10123 IP 2720 2756 2872 2924 2822 3074 46 (114.8) TC SHC IP 16457 14811 2126 18200 9273 2180 15205 15052 2275 16904 11203 2321 14061 13921 2212 15553 6119 2421 TC : Total capacity (BTU) SHC: Sensible Heat Capacity (BTU) IP: Input Power (Watt) 119 20.2 Heat Mode Performance Data Unit setting: Standard piping length, Hi Fan, Heat mode at 86°F Voltage: 230V 20.2.1 CS-E9RKUAW CU-E9RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 4364 747 4598 736 3711 718 -8.3 (17.06) TC IP 8712 1039 9315 1035 9571 1024 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 11021 1128 12059 1129 11336 1106 12011 1120 12262 1116 12890 1149 12 (53.6) TC IP 12375 1149 12253 1124 12988 1104 23.9 (75.02) TC IP 13471 1114 14239 1089 13891 1071 20.2.2 CS-E12RKUAW CU-E12RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 5021 833 5290 822 4270 802 -8.3 (17.06) TC IP 10024 1159 10717 1155 11012 1143 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 12681 1259 13875 1260 13043 1235 13819 1250 14108 1245 14831 1283 12 (53.6) TC IP 13337 1282 14098 1254 13753 1233 23.9 (75.02) TC IP 15499 1243 16383 1216 15983 1195 20.2.3 CS-E18RKUAW CU-E18RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 6715 1213 6913 1169 6455 1117 -8.3 (17.06) TC IP 12572 1615 12610 1554 12720 1485 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 16051 1628 21041 1850 16284 1561 21599 1750 16459 1495 22135 1654 12 (53.6) TC IP 21969 1839 22844 1765 23456 1671 23.9 (75.02) TC IP 23675 1767 24618 1695 25278 1605 20.2.4 CS-E24RKUAW CU-E24RKUA Rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 8975 1733 9239 1670 8627 1596 -8.3 (17.06) TC IP 16802 2307 16854 2220 17000 2122 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 21452 2326 28122 2643 21764 2230 28867 2500 21997 2136 29584 2363 12 (53.6) TC IP 29361 2628 30530 2522 31349 2388 23.9 (75.02) TC IP 31641 2524 32901 2422 33784 2293 TC : Total capacity (BTU) IP: Input Power (Watt) 120 20.2.5 CS-E9RKUAW CU-E9RKUA Maximum Capacity Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 7056 1301 7433 1295 6000 1261 -8.3 (17.06) TC IP 9370 1320 10019 1315 10294 1301 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 12234 1459 14183 1512 12583 1431 14126 1500 13611 1443 15160 1539 12 (53.6) TC IP 14534 1525 14390 1491 15253 1466 23.9 (75.02) TC IP 15225 1424 16093 1393 15700 1369 20.2.6 CS-E12RKUAW CU-E12RKUA Maximum Capacity Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 8129 1625 8564 1664 6914 1654 -8.3 (17.06) TC IP 10796 1505 11543 1499 11861 1484 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 14095 1663 16342 1724 14498 1631 16276 1710 15682 1645 17468 1755 12 (53.6) TC IP 15685 1738 16580 1700 16175 1671 23.9 (75.02) TC IP 17541 1623 18542 1588 18089 1561 20.2.7 CS-E18RKUAW CU-E18RKUA Maximum Capacity Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 9834 1881 10124 1825 9454 1750 -8.3 (17.06) TC IP 14795 1984 14840 1910 14969 1829 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 18316 1952 21374 1903 18582 1843 21940 1800 18782 1781 22485 1702 12 (53.6) TC IP 22308 1892 23196 1816 23818 1719 23.9 (75.02) TC IP 24058 1783 25016 1711 25687 1620 20.2.8 CS-E24RKUAW CU-E24RKUA Maximum Capacity Indoor (°C / °F) DB 24 (75.2) 20 (68) 16 (60.8) -20 (-4) TC IP 13092 2741 13478 2641 12585 2500 -8.3 (17.06) TC IP 19696 2832 19756 2761 19928 2684 Outdoor (°C / °F) 1.7 (35.06) 8.3 (46.94) TC IP TC IP 24383 2755 28454 2812 24738 2650 29208 2660 25003 2521 29933 2515 12 (53.6) TC IP 29697 2796 30880 2683 31708 2541 23.9 (75.02) TC IP 32027 2525 33303 2423 34196 2295 TC : Total capacity (BTU) IP: Input Power (Watt) 121 Outlet Air (°F) 21. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 21.1 Cool Mode Outdoor Air Temperature Characteristic Condition - Indoor room temperature: 80°F Dry Bulb/67°F Wet Bulb - Unit setting: Standard piping length, forced cooling at 60.8°F, Hi fan - Compressor frequency: Rated for cooling operation - Piping length: 24.6ft - Voltage: 230V 21.1.1 CS-E9RKUAW CU-E9RKUA 230 64.5 64.0 63.5 63.0 62.5 62.0 61.5 61.0 60.5 60.0 59.5 59.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 4.0 3.5 3.0 2.5 2.0 1.5 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 152.0 150.0 148.0 146.0 144.0 142.0 140.0 138.0 136.0 134.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 122 Current (A) Gas Side Piping Pressure (PSI) Outlet Air (°F) Current (A) Gas Side Piping Pressure (PSI) 21.1.2 CS-E12RKUAW CU-E12RKUA 230 62.0 61.5 61.0 60.5 60.0 59.5 59.0 58.5 58.0 57.5 57.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 5.5 5.0 4.5 4.0 3.5 3.0 2.5 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 150.0 148.0 146.0 144.0 142.0 140.0 138.0 136.0 134.0 132.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 123 Outlet Air (°F) Current (A) Gas Side Piping Pressure (PSI) 21.1.3 CS-E18RKUAW CU-E18RKUA 230 68.0 66.0 64.0 62.0 60.0 58.0 56.0 54.0 52.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 6.5 6.0 5.5 5.0 4.5 4.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 175.0 170.0 165.0 160.0 155.0 150.0 145.0 140.0 135.0 130.0 125.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 124 Outlet Air (°F) Current (A) Gas Side Piping Pressure (PSI) 21.1.4 CS-E24RKUAW CU-E24RKUA 230 60.0 59.0 58.0 57.0 56.0 55.0 54.0 53.0 52.0 51.0 50.0 49.0 48.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 142.0 137.0 132.0 127.0 122.0 117.0 112.0 107.0 102.0 -4 6 16 26 36 46 56 66 76 86 96 106 116 Outdoor Air Temperature (°F) 125 21.2 Heat Mode Outdoor Air Temperature Characteristic Condition - Indoor room temperature: 68°F Dry Bulb/-°F Wet Bulb - Unit setting: Standard piping length, forced heating at 86°F, Hi fan - Compressor frequency: Rated for Heating operation - Piping length: 24.6ft - Voltage: 230V 21.2.1 CS-E9RKUAW CU-E9RKUA Outlet Air (°F) Current (A) 230 102.0 100.0 98.0 96.0 94.0 92.0 90.0 88.0 86.0 84.0 82.0 -4 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 -4 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 380.0 360.0 340.0 320.0 300.0 280.0 260.0 240.0 -4 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) Gas Side Piping Pressure (PSI) 126 21.2.2 CS-E12RKUAW CU-E12RKUA Outlet Air (°F) Current (A) 110.0 108.0 106.0 104.0 102.0 100.0 98.0 96.0 94.0 92.0 90.0 88.0 -4 1 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 -4 1 420.0 400.0 380.0 360.0 340.0 320.0 300.0 280.0 260.0 -4 1 230 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) Gas Side Piping Pressure (PSI) 127 21.2.3 CS-E18RKUAW CU-E18RKUA Outlet Air (°F) Current (A) 230 106.0 104.0 102.0 100.0 98.0 96.0 94.0 92.0 90.0 88.0 -4 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 8.4 8.2 8.0 7.8 7.6 7.4 7.2 7.0 6.8 6.6 6.4 -4 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 420.0 400.0 380.0 360.0 340.0 320.0 300.0 280.0 -4 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) Gas Side Piping Pressure (PSI) 128 21.2.4 CS-E24RKUAW CU-E24RKUA Outlet Air (°F) Current (A) 122.0 120.0 118.0 116.0 114.0 112.0 110.0 108.0 106.0 104.0 102.0 -4 1 12.0 11.5 11.0 10.5 10.0 9.5 9.0 -4 1 520.0 500.0 480.0 460.0 440.0 420.0 400.0 380.0 360.0 340.0 -4 1 230 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 Outdoor Air Temperature (°F) Gas Side Piping Pressure (PSI) 129 21.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 21.3.1 CS-E9RKUAW CU-E9RKUA CS-E12RKUAW CU-E12RKUA Cooling Capacity Correction Factor 1.040 1.030 1.020 1.010 1.000 0.990 0.980 0.970 0.960 9.5 1.060 1.050 1.040 1.030 1.020 1.010 1.000 0.990 0.980 0.970 0.960 0.950 9.5 230 13.5 17.5 21.5 25.5 29.5 33.5 37.5 41.5 45.5 49.5 Piping Length (ft) 14.5 19.5 24.5 29.5 34.5 39.5 44.5 49.5 Piping Length (ft) Heating Capacity Correction Factor Note: The graphs show the factor after added right amount of additional refrigerant. 130 21.3.2 CS-E18RKUAW CU-E18RKUA CS-E24RKUAW CU-E24RKUA Cooling Capacity Correction Factor 1.020 1.010 1.000 0.990 0.980 0.970 0.960 0.950 9.5 1.010 1.000 0.990 0.980 0.970 0.960 9.5 230 19.5 29.5 39.5 49.5 59.5 69.5 79.5 89.5 99.5 Piping Length (ft) 19.5 29.5 39.5 49.5 59.5 69.5 79.5 89.5 99.5 Piping Length (ft) Heating Capacity Correction Factor Note: The graphs show the factor after added right amount of additional refrigerant. 131 22. Exploded View and Replacement Parts List 22.1 Indoor Unit 22.1.1 CS-E9RKUAW CS-E12RKUAW O/I 46 I/I 47 I/I 48 4 3 40 CWH55025J 45 CWH55051J 44 17 20 18 54 22 21 5 8 9 2 7 1 27 37 38 39 41 42 51 50 53 52 6 10 16 14 23 11 13 12 25 15 24 43 34 28 29 30 35 33 26 49 36 55 Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 132 SAFETY REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 27 28 29 30 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 PART NAME & DESCRIPTION CHASSIS COMPLETE FAN MOTOR CROSS-FLOW FAN COMPLETE BEARING ASSY SCREW - CROSS-FLOW FAN PARTICULAR PIECE EVAPORATOR FLARE NUT (LIQUID) FLARE NUT (GAS) CLIP FOR SENSOR CONTROL BOARD CASING TERMINAL BOARD COMPLETE ELECTRONIC CONTROLLER - MAIN PARTICULAR PIECE - TERMINAL ELECTRONIC CONTROLLER-INDICATOR SENSOR COMPLETE SENSOR COMPLETE (ECO) ELECTRONIC CONTROLLER (ECO SENSOR) ELECTRONIC CONTROLLER (COMPARATOR) LEAD WIRE - PCB ECO CONTROL BOARD CASING FOR PCB ECO CONTROL BOARD TOP COVER INDICATOR HOLDER CONTROL BOARD FRONT COVER CO. DISCHARGE GRILLE COMPLETE BACK COVER CHASSIS FULCRUM VERTICAL VANE CONNECTING BAR AIR SWING MOTOR CAP - DRAIN TRAY HORIZONTAL VANE COMPLETE REMOTE CONTROL COMPLETE FRONT GRILLE COMPLETE INTAKE GRILLE COMPLETE GRILLE DOOR COMPLETE AIR FILTER SCREW - FRONT GRILLE CAP - FRONT GRILLE DRAIN HOSE INSTALLATION PLATE BAG COMPLETE - INSTALLATION SCREW OPERATING INSTRUCTION INSTALLATION INSTRUCTION INSTALLATION INSTRUCTION REMOTE CONTROL HOLDER BAG QTY. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 8 2 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 1 1 1 CS-E9RKUAW CWD50C1633 L6CBYYYL0055 CWH02C1076 CWH64K007 CWH551146 CWD933067 CWB30C5033 CWT251030 CWT251031 CWH321085 CWH102605A CWA28C2357 CWA73C9156 CWD933137A CWA748158 CWA50C3228 CWA50C2820 CWA745791 CWA746769 CWA67C9786 CWD933427 CWH131467 CWD933406 CWH13C1333 CWE20C3495 CWD933233B CWH621131 CWE241374 CWE261251 CWA981264 CWH521259 CWE24C1385 CWA75C4567 CWE11C5960 CWE22C1946 CWE14C1131 CWD001279 XTT4+16CFJ CWH521227 CWH851173 CWH361134 CWH82C1705 CWF569755 CWF616529 CWF616530 CWH361078 CWG861497 CS-E12RKUAW CWB30C5026 CWT251032 CWA73C9157 REMARK O O O O O O O O O O O O O O 133 SAFETY REF. NO. 51 52 53 54 55 PART NAME & DESCRIPTION SHOCK ABSORBER ( L ) SHOCK ABSORBER ( R ) C.C.CASE AIR PURIFYING FILTER BAG COMPLETE (TUBE CONNECTOR) QTY. 1 1 1 1 1 CS-E9RKUAW CWG713386 CWG713387 CWG567355 CWD00C1141 CWH82C2030 (Note) All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). "O" marked parts are recommended to be kept in stock. CS-E12RKUAW REMARK O 134 22.1.2 CS-E18RKUAW CS-E24RKUAW O/I 46 I/I 47 I/I 48 4 3 40 CWH55025J 45 CWH55051J 17 20 18 22 21 54 37 2 5 8 9 7 38 39 41 42 44 1 27 6 10 16 14 12 13 25 23 11 43 24 15 51 50 53 31 52 34 28 29 30 35 55 49 36 32 33 26 Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 135 SAFETY REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 PART NAME & DESCRIPTION CHASSIS COMPLETE FAN MOTOR CROSS-FLOW FAN COMPLETE BEARING ASSY SCREW - CROSS-FLOW FAN PARTICULAR PIECE EVAPORATOR FLARE NUT (LIQUID) FLARE NUT (GAS) CLIP FOR SENSOR CONTROL BOARD CASING TERMINAL BOARD COMPLETE ELECTRONIC CONTROLLER - MAIN PARTICULAR PIECE - TERMINAL ELECTRONIC CONTROLLER-INDICATOR SENSOR COMPLETE SENSOR COMPLETE (ECO) ELECTRONIC CONTROLLER (ECO SENSOR) ELECTRONIC CONTROLLER (COMPARATOR) LEAD WIRE - PCB ECO CONTROL BOARD CASING FOR PCB ECO CONTROL BOARD TOP COVER INDICATOR HOLDER CONTROL BOARD FRONT COVER CO. DISCHARGE GRILLE COMPLETE BACK COVER CHASSIS FULCRUM VERTICAL VANE CONNECTING BAR CONNECTING BAR AIR SWING MOTOR ASS'Y. AIR SWING MOTOR CAP - DRAIN TRAY HORIZONTAL VANE COMPLETE REMOTE CONTROL COMPLETE FRONT GRILLE COMPLETE INTAKE GRILLE COMPLETE GRILLE DOOR COMPLETE AIR FILTER SCREW - FRONT GRILLE CAP - FRONT GRILLE DRAIN HOSE INSTALLATION PLATE BAG COMPLETE - INSTALLATION SCREW OPERATING INSTRUCTION INSTALLATION INSTRUCTION INSTALLATION INSTRUCTION QTY. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 2 3 3 1 1 1 1 1 1 CS-E18RKUAW CWD50C1637 L6CBYYYL0056 CWH02C1077 CWH64K007 CWH551146 CWD933067 CWB30C3963 CWT251030 CWT251032 CWH32142 CWH102605A CWA28C2357 CWA73C9158 CWD933137A CWA748158 CWA50C3228 CWA50C2827 CWA745791 CWA746769 CWA67C9935 CWD933455 CWH131467 CWD933406 CWH13C1333 CWE20C3496 CWD933031B CWH621138 CWE241374 CWE261257 CWE261258 CWA98K1024 CWA981241 CWH521259 CWE24C1392 CWA75C4569 CWE11C5961 CWE22C1945 CWE14C1131 CWD001283 XTT4+16CFJ CWH521227 CWH851173 CWH361098 CWH82C1705 CWF569756 CWF616730 CWF616731 CS-E24RKUAW CWB30C3967 CWT251033 CWA73C9159 REMARK O O O O O O O O O O O O O O 136 SAFETY REF. NO. PART NAME & DESCRIPTION 49 REMOTE CONTROL HOLDER 50 BAG 51 SHOCK ABSORBER ( L ) 52 SHOCK ABSORBER ( R ) 53 C.C. CASE 54 AIR PURIFYING FILTER 55 BAG COMPLETE (TUBE CONNECTOR) QTY. 1 1 1 1 1 1 1 CS-E18RKUAW CWH361078 CWG861498 CWG713402 CWG713403 CWG567455 CWD00C1141 CWH82C2030 (Note) All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). "O" marked parts are recommended to be kept in stock. CS-E24RKUAW REMARK O 137 22.2 Outdoor Unit 22.2.1 CU-E9RKUA CU-E12RKUA 38 49 34 48 47 29 31 28 11 2 45 46 6 7 4 5 20 50 51 30 40 3 19 23 36 37 24 39 43 12 18 22 17 8 42 13 10 44 9 1 27 26 32 15 16 14 33 41 Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 138 SAFETY REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 26 27 28 29 30 31 32 33 34 36 37 38 39 40 41 42 43 44 45 46 47 48 49 PART NAME & DESCRIPTION CHASSIS COMPLETE FAN MOTOR BRACKET SCREW - FAN MOTOR BRACKET FAN MOTOR SCREW - FAN MOTOR MOUNT PROPELLER FAN ASSY NUT - PROPELLER FAN COMPRESSOR ANTI - VIBRATION BUSHING NUT - COMPRESSOR MOUNT CONDENSER EXPANSION VALVE DISCHARGE MUFFLER (EXPANSION VALVE) HOLDER COUPLING 2-WAYS VALVE (LIQUID) 3-WAY VALVE (GAS) TERMINAL COVER NUT - TERMINAL COVER SOUND PROOF BOARD SOUND PROOF MATERIAL SENSOR CO-COMP TEMP CONTROL BOARD COVER - TOP ELECTRONIC CONTROLLER - MAIN TERMINAL BOARD ASSY CABINET SIDE PLATE CO. SENSOR CO-AIR TEMP AND PIPE TEMP CABINET SIDE PLATE CABINET FRONT PLATE CO. CABINET TOP PLATE PLATE - C. B. COVER TERMINAL CONTROL BOARD COVER CO. HANDLE REACTOR 4-WAYS VALVE WIRE NET V-COIL COMPLETE (4 W. VALVE) HEATER BAG-COMPLETE STRAINER V-COIL COMPLETE (EXPANSION VALVE) DISCHARGE MUFFLER (4 W. VALVE) BAG BASE BOARD-COMPLETE SHOCK ABSORBER ( R ) SHOCK ABSORBER ( L ) C.C.CASE QTY. 1 1 2 1 4 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CU-E9RKUA CWD50K2081A CWD541089 CWH551217 ARW6404AC CWH55252J CWH03K1014 CWH56053J 5RS102XHA21 CWH50077 CWH561096 CWB32C3394 CWB051016J CWB121021 CWH351231A CWB021180J CWB011374 CWH171039A CWH7080300J CWH151172A CWG302570 CWA50C2340 CWH131264 CWA73C9160R CWA28K1154 CWE04C1226 CWA50C2793 CWE041492A CWE06C1142 CWE031018A CWH131301 CWH13C1345 CWE161010 G0C193J00002 CWB001058 CWD041161A CWA43C2432 CWA341065 CWG87C900 CWB111061 CWA43C2393 CWB121047 CWG861078 CWG50C2388 CWG712210 CWG712209 CWG565107 CU-E12RKUA CWB32C4129 CWB021654 CWB011367 CWA73C9161R CWE04C1558 CWA50C3315 G0C193J00004 REMARK O O O O O O O o O O O O O 139 SAFETY REF. NO. 50 51 PART NAME & DESCRIPTION SOUND PROOF MATERIAL SOUND PROOF MATERIAL QTY. 1 1 CU-E9RKUA CWG302292 CWG302569 (Note) All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488). "O" marked parts are recommended to be kept in stock. CU-E12RKUA REMARK 140 22.2.2 CU-E18RKUA CU-E24RKUA 35 31 34 30 5 6 10 8 9 19 52 33 25 51 21 3 20 4 11 45 28 41 14 50 49 40 39 42 15 2 23 12 13 37 36 47 7 16 1 48 43 Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 24 44 27 26 32 46 29 22 18 17 141 SAFETY REF. NO. PART NAME & DESCRIPTION 1 CHASSIS COMPLETE 2 ANTI - VIBRATION BUSHING 3 COMPRESSOR 4 NUT - COMPRESSOR MOUNT 5 FAN MOTOR BRACKET 6 FAN MOTOR 7 SCREW - FAN MOTOR BRACKET 8 SCREW - FAN MOTOR MOUNT 9 PROPELLER FAN ASSY 10 NUT - PROPELLER FAN 11 CONDENSER 12 EXPANSION VALVE 13 STRAINER 14 4-WAYS VALVE 15 DISCHARGE MUFFLER (4 W. VALVE) 16 HOLDER COUPLING 17 3-WAY VALVE (GAS) 18 2-WAYS VALVE (LIQUID) 19 SOUND PROOF BOARD 20 TERMINAL COVER 21 NUT - TERMINAL COVER 22 V-COIL COMPLETE (EXPANSION VALVE) 23 SENSOR CO-COMP TEMP 24 SENSOR CO-AIR TEMP AND PIPE TEMP 25 REACTOR 26 TERMINAL BOARD ASSY 27 TERMINAL BOARD ASSY 28 ELECTRONIC CONTROLLER - MAIN 29 CONTROL BOARD COVER - COMPLETE 30 CABINET SIDE PLATE 31 HANDLE 32 CABINET SIDE PLATE 33 CABINET FRONT PLATE CO. 34 WIRE NET 35 CABINET TOP PLATE 36 RECEIVER 37 PACKING 39 SOUND PROOF MATERIAL 40 SOUND PROOF MATERIAL 41 V-COIL COMPLETE (4 W. VALVE) 42 HEATER 43 BAG-COMPLETE 44 TUBE ASSY CO. (CAP. TUBE) 45 CONTROL BOARD COVER - TOP 46 CONTROL BOARD COVER 47 BAG 48 BASE BOARD-COMPLETE QTY. 1 3 1 3 1 1 3 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 142 CU-E18RKUA CWD52K1228A CWH50055 5KD240XAF21 CWH561049 CWD541127 EHDS80CAC CWH551217 CWH551323 CWH00K1006 CWH561092 CWB32C3516 CWB051018J CWB111076 CWB001057 CWB121055 CWH351228A CWB011672 CWB021464 CWH151197 CWH171039A CWH7080300J CWA43C2393 CWA50C2689 CWA50C2710 G0C452J00002 CWA28K1277 CWA28K1076J CWA73C9162R CWH13C1210 CWE041490A CWE161010 CWE041488A CWE06K1070 CWD041128A CWE031131A CWB14030 CWB81043 CWG302245 CWG302246 CWA43C2392 CWA341067 CWG87C900 CWT01C6093 CWH131333 CWH131332 CWG861154 CWG62C1082 CU-E24RKUA CWB011363 CWA73C9163R REMARK O O O O O O O O O O O O O O SAFETY REF. NO. 49 50 51 52 PART NAME & DESCRIPTION SHOCK ABSORBER ( R ) SHOCK ABSORBER ( L ) C.C. CASE ELECTRONIC CONTROLLER - NF QTY. 1 1 1 1 CU-E18RKUA CWG712880 CWG712879 CWG565614 CWA747077 (Note) All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). "O" marked parts are recommended to be kept in stock. CU-E24RKUA REMARK Printed in Malaysia FB0115-0 143Acrobat Distiller 9.5.5 (Windows)