– 56 – 9-2-2. Outline of Main Controls 1. Pulse Modulating Valve (PMV) control 1) For PMV, SM560 is controlled with 45 to 500 pulses and SM800 with 50 to 500 pulses during operation, respectively. 2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor. 3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE sensor. 4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and heating operations. 5) When the cycle excessively rose in both cooling and heating operations, PMV is controlled by TD sensor. The aimed value is usually 105°C for SM560 and 100°C for SM800 in both cooling and heating operations. REQUIREMENT A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance value an the refrigerating cycle of each sensor after repair and then start the operation. 2. Discharge temperature release control 1) This function controls the operation frequency, that is, lowers the operation frequency when the discharge temperature has not lower or the discharge temperature has rapidly risen during PMV control. It subdivides the frequency control up to a unit of 0.6Hz to stabilize the cycle. 2) When the discharge temperature is detected in an abnormal stop zone, the unit stops the compressor and restarts after 2 minutes 30 seconds. The error counter is cleared when it has continued the operation for 10 minutes. If the abnormal stop zone has been detected by 4 times without clearing of counter, an error ‘P03’ is displayed. * The cause is considered as excessively little amount of refrigerant, defective PMV, or clogging of cycle. [°C] a b c d e SM560 117 112 108 105 98 SM800 111 106 100 95 90 3. Current release control The output frequency and the output voltage are controlled by AC current value detected by T02 on the outdoor P.C. board so that input current of the inverter does not exceed the specified value. SM560 TD [ C] Error stop ("P03" display with 4 times of error counts) a Frequency down b c Frequency holding d Frequency slow-up (Up to command) e As command is [A] Frequency down I1 SM800 Objective model COOL HEAT COOL HEAT I1 value [A] 10.22 10.35 14.43 13.00 1–0.5 * For the cooling only models, only COOL is objective. – 57 – Hold Hold Normal operation 9-2-3. Indoor P.C. Board Optional Connector Specifications Function Option output Outside error input Filter option error CHK Operation check DISP display mode EXCT demand Connector No. CN60 CN80 CN70 CN71 CN72 CN73 Pin No. Specifications Remarks 1 DC12V (COM) 2 Defrost output ON during defrost operation of outdoor unit 3 Thermo. ON output ON during Real thermo-ON (Comp ON) 4 Cooling output ON when operation mode is in cooling system (COOL, DRY, COOL in AUTO cooling/heating) 5 Heating output ON when operation mode is in heating system (HEAT, HEAT in AUTO cooling/heating) 6 Fan output ON during indoor fan ON (Air purifier is used/Interlock cable) 1 DC12V (COM) (When continued for 1 minute) Check code “L30” is output and forced operation stops. 2 DC12V (COM) 3 Outside error input 1 Filter/Option/Humidifier setup input Option error input is controlled. (Protective operation for device attached to outside is displayed.) 2 0V * Setting of option error input is performed from remote controller. (DN=2A) 1 Check mode input 2 0V Used for operation check of indoor unit. (Communication with outdoor unit or remote controller is not performed, but the specified operation such as indoor fan “H” or drain pump ON is output.) 1 Display mode input 2 0V 1 Demand input 2 0V Display mode enables indoor unit and remote controller to communicate. (When power is turned on) Forced thermo-OFF operation in indoor unit – 58 – 12V power supply PMV output TD sensor TS sensor TE sensor TO sensor Case thermo – 59 – Outdoor fan rpm input IGB module Outdoor fan output 4-way valve output (Except cooling only models) Converter module 9-3. Outdoor Controls GND 9-3-1. Print Circuit Board MCU MCC-1398 (RAV-SM560AT-E) 5V power supply 12V power supply PMV output Case thermo Contactor against night low-noise 5V power supply TD sensor TO sensor TE sensor TS sensor – 60 – Communication between CDB and IPDU Existing pipe corresponding switch (SW 801) 4-way valve output Outdoor fan output GND MCU Status display LED MCC-813 (RAV-SM800AT-E) Pump down switch 9-3-2. Outline of Main Controls 1. Outdoor fan control (Object: SM80) Allocautions of fan tap revolutions [rpm] SM800 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE 250 270 290 310 340 370 400 440 480 520 560 610 700 780 1) Cooling fan control Q The outdoor fan is controlled by TE sensor. (Cooling: Temperature conditions after medium term) The cooling fan is controlled by every 1 tap of DC fan control (14 taps). R At the activation time, although the maximum fan tap in the following table are fixed for 60 seconds, after then the fan may not rotate with high speed for several minutes because the fan is controlled by TE sensor value. It is not an abnormal status. S When the discharge temperature sensor is abnormal or the sensor comes off the holder, the fan does not rotate with high speed, but a protective device works. T When the outdoor fan does not rotate with high speed, judge a fan error by comparing the control data in the following table with TO and TE values. TE [ C] MAX. 46 +30 rpm / 20 sec. 37 Hold zone 34 –30 rpm / 20 sec. 20 MIN. Control for fan tap by outdoor temperature in normal operation 5 ≤ TO <10°C 10 ≤ TO < 15°C 15 ≤ TO < 20°C 20 ≤ TO < 25°C TO TO < 5°C MIN W1 W2 W3 W4 MAX W6 W8 WA WC 2) Heating fan control Q This control function lowers fan tap according to TE sensor value when outdoor temperature is high. R When a status TE > 20°C is detected continuously for 5 minutes, the operation may stop. This status does not output an error code and is assumed as usual status of thermo-OFF. The fan restarts after approx. 2 minutes 30 seconds and this intermittent operation is not a trouble. S If the status in item R is frequently found, it is considered that the filter of suction part of the indoor unit is dirty. Clean the filter and restart the operation. T This control function does not work for 30 minutes after activation, 1 minute after defrosting, and during defrost operation. – 61 – 25°C ≤ TO TO error W5 WA W1 WE WE WE TE [ C] –60 rpm / 20 sec. STOP timer count 24 –60 rpm / 20 sec. 21 –30 rpm / 20 sec. 17 Hold zone 15 +30 rpm / 20 sec. 2. Outdoor fan control (Object: SM560) The outdoor fan is controlled by TO sensor and the revolutions frequency of the compressor (rps). The outdoor fan is controlled by every 1 tap of DC fan control (8 taps). According to each operation mode, the fan is operated by selecting an outdoor fan operation tap in the following table based upon the conditions of TO sensor and the compressor operation (rps). Allocations of fan tap revolutions SM560 Tap F1 F2 F3 F4 F5 F6 F7 F8 Revolutions per minute (rpm) 960 870 870 870 750 700 540 390 In cooling operation In heating operation Frequency of the compressor (rps) To 14 To 14 35 to MAX Frequency of the compressor (rps) To 14 To 14 35 to MAX TO ≥ 38°C F7 F4 F3 TO ≥ 5.5°C F7 F6 F4 TO < 38°C F7 F5 F4 TO < 5.5°C F6 F6 F3 3. Coil heating control 1) This control function heats the compressor by turning on the stopped compressor instead of a case heater. It purposes to prevent slackness of the refrigerant inside of the compressor. 2) As usual, turn on power of the compressor for the specified time before a test run after installation, otherwise a trouble of the compressor may be caused. As same as a test run, it is recommended to turn on power of the compressor beforehand when starting operation after power of the compressor has been interrupted for a long time. 3) A judgment for electricity is performed by TD and TO sensors. If TO sensor is defective, a backup control is automatically performed by TE sensor. For a case of defective TO sensor, judge it with the outdoor LED display. 4) Coil heating is controlled by TD and TE sensor. 5) For every model, the power is turned off when TD is 30°C or more. (In trouble of sensor) TO [ C] 18 Power-ON condition 15 TD < 30 C 10 8 TO [ C] No power-ON Continuous ON (L) 20 18 12 10 No power-ON Continuous ON (L) Continuous ON (M) Continuous ON (M) * TD sensor is read in once per 15 minutes . SM800 (Object: SM560) L 20W and equivalent M 40W and equivalent TO [ C] 10 9 4 3 2 1 No power-ON Continuous ON (L) SM560 Continuous ON (M) Continuous ON (H) – 62 – L 10W and equivalent M 20W and equivalent H 30W and equivalent NOTIFICATION It is not an abnormal phenomenon that electro-noise may be heard while heating the coil. 4. Short intermittent operation preventive control Q The compressor may not stop for preventing the compressor for 3 to 10 minutes after start of the operation even if Thermo-OFF signal has been received from the indoor. This phenomenon is not abnormal. (Continuous operation time of the compressor differs according to the operating status.) R If the equipment is stopped from the remote controller, the operation does not continue. 5. High-voltage suppression TE control (Only for SM800) Q This control suppresses that voltage becomes abnormally higher during cooling operation. R Stop the compressor under condition of TE ≥ 67°C, and count 1 on the error count. S After 2 minutes 30 seconds passed, if TE < 67°C, the compressor restarts and the error count is cleared when the operation continues for 10 minutes. T When TE ≥ 67°C is detected again within 10 minutes, 1 is added to the error count and restart is repeated. U If the error counts 10 are recognized, it is determined as an error and restart is not performed. Error code ‘P04’ is displayed. V After restarting the compressor, continue controlling by using 70% to 90% of the control value of the current release control for minimum 30 minutes. 6. Over-current preventive control Q This control function stops the compressor when over-current preventive circuit has detected an abnormal current. R The compressor restarts with error count 1 after 2 minutes 30 seconds. S If the error counts 4 are recognized, it is determined as an error and restart is not performed. Error code ‘H01’, ‘H02’ or ‘P26’ is displayed. 7. Current release value shift control 1) Object: SM800 Q This control function prevents troubles of the electron parts such as G-Tr of inverter of compressor drive system and troubles of the compressor during cooling operation. R This control function corrects the current release control value ( 1) in item 3 of 9-2-2 by TO sensor value. S The value to be corrected is based upon the following control diagram and correction value table. Corrected value TO [ C] SM800 T+8 T+7 T+5 T+4 T+2 T+1 T T-1 T a b c d 39°C 40°C 60°C 80°C 85°C I1 x a% I1 x b% I1 x c% I1 x d% As I1 2) Object: SM560 The current release value of a single-phase model is selected from the right table according to TO sensor value. – 63 – Current release value shift control TO SM560 45 ≤ TO 7.07 40 ≤ TO < 45 7.90 TO < 45 10.22 8. Defrost control Q In heating operation, defrost operation is performed when TE sensor temperature satisfies any condition in A zone to D zone. R The defrost operation is immediately finished if TE sensor temperature has become 12°C or more, or it also is finished when condition of 7°C ≤ TE < 12°C has continued for 1 minute. The defrost operation is also finished when defrost operation has continued for 10 minutes even if TE sensor temperature has become 7°C or lower. S After defrost operation has finished, the compressor and the outdoor fan start heating operation after stopped for approx. 50 seconds. Start of heating operation 0 TE [ºC] 10 15 c b a d [min] –5 A zone –10 –13 B zone –18 D zone C zone * * The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory as TE0. A zone Defrost operation is performed in this zone when TE0-TE ≥ 3 continued for T seconds. B zone Defrost operation is performed in this zone when TE0-TE ≥ 3 continued for T seconds. C zone Defrost operation is performed when this zone continued for T seconds. D zone Defrost operation is performed when this zone continued for T seconds. SM560 SM800 a 28 34 b 28 40 c 28 55 d 60 90 T 120 120 – 64 – 10. TROUBLESHOOTING 10-1. Summary of Troubleshooting 1. Before troubleshooting 1) Required tools/instruments • + and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check Q The following operations are normal. a) Compressor does not operate. • Is not 3-minutes delay (3 minutes after compressor OFF)? • Does not thermostat turn off? • Does not timer operate during fan operation? • Is not outside high-temperature operation controlled in heating operation? b) Indoor fan does not rotate. • Does not cool air discharge preventive control work in heating operation? c) Outdoor fan does not rotate or air volume changes. • Does not high-temperature release operation control work in heating operation? • Does not outside low-temperature operation control work in cooling operation? • Is not defrost operation performed? d) ON/OFF operation cannot be performed from remote controller. • Is not the control operation performed from outside/remote side? • Is not automatic address being set up? (When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.) R Did you return the cabling to the initial positions? S Are connecting cables of indoor unit and remote controller correct? (2) Troubleshooting procedure When a trouble occurred, check the parts along with the following procedure. Trouble → Confirmation of check code display → Check defective position and parts. NOTE : For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables. – 65 –  (Only for 4-way air discharge cassette type models) 1. Before troubleshooting 1) Required tools/instruments • + and – screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check Q The following operations are normal. a) Compressor does not operate. • Is not 3-minutes delay (3 minutes after compressor OFF)? • Does not thermostat turn off? • Does not timer operate during fan operation? • Is not outside high-temperature operation controlled in heating operation? b) Indoor fan does not rotate. • Does not cool air discharge preventive control work in heating operation? 3) Outdoor fan does not rotate or air volume changes. • Does not high-temperature release operation control work in heating operation? • Does not outside low-temperature operation control work in cooling operation? • Is not defrost operation performed? 4) ON/OFF operation cannot be performed from remote controller. • Is not forced operation performed? • Is not the control operation performed from outside/remote side? • Is not automatic address being set up? Q Did you return the cabling to the initial positions? R Are connecting cables between indoor unit and receiving unit correct? 2. Troubleshooting procedure (When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.) When a trouble occurred, check the parts along with the following procedure. Trouble → Confirmation of lamp display (When 4-way air discharge cassette type wireless remote controller is connected) → Check defective position and parts. 1) Outline of judgment The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with the following method. Method to judge the erroneous position by flashing indication on the display part of indoor unit (sensors of the receiving unit) The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works. – 66 – 10-2. Check Code List Error mode detected by indoor unit Wireless sensor lamp display Operation Timer ◎ ● Ready ◎ : Flash, 〇 : Go on, ● : Go off Diagnostic function Wired remote controller Judgment and measures Cause of operation Status of air conditioner E03 No communication from remote controller (including wireless) and communication adapters Stop (Automatic reset) Displayed when 1. Check cables of remote controller and communication adapters. error is detected • Handy remote controller LCD display OFF (Disconnection) • Central remote controller [97] check code E04 The serial signal is not output from outdoor unit to indoor unit. • Miscabling of inter-unit cables • Defective serial sensing circuit on outdoor P.C. board • Defective serial receiving circuit on indoor P.C. board S top (Automatic reset) Displayed when 1. Outdoor unit does not completely operate. • Inter-unit cable check, correction of miscabling, case thermo operation error is detected • Outdoor P.C. board check, P.C. board cables check 2. In normal operation P.C. board (Indoor receiving/Outdoor sending) check Stop Displayed when 1. Check whether there is modification of remote controller connection (Group/ error is detected Individual) or not after power has been turned on (finish of group configuration/ address check). * If group configuration and address are not normal when the power has been turned on, the mode automatically shifts to address setup mode. (Resetting of address) Check code ● Condition – 67 – ● ● ◎ ◎ ● ● E08 Duplicated indoor unit addresses ◎ ● ◎ L03 Duplicated indoor master units ◎ ● ◎ L07 There is group line in individual indoor units. ◎ ● ◎ L08 Unsetting of indoor group address ◎ ● ◎ L09 Unset indoor capacity Stop Displayed when 1. Set the indoor capacity. (DN=I1) error is detected ◎ ○ ◎ L30 Abnormal outside interlock input Stop Displayed when 1. Check outside devices. error is detected 2. Check indoor P.C. board. ● ◎ ◎ P01 Fan motor thermal protection Stop Displayed when 1. Check thermal relay of fan motor. error is detected 2. Check indoor P.C. board. P10 ◎ ◎ Float switch operation • Disconnection, coming-off, defective float switch contactor of float circuit Stop ● Displayed when 1. Defect of drain pump error is detected 2. Clogging of drain pump 3. Check float switch. 4. Check indoor P.C. board. P12 Indoor DC fan error Stop ● ◎ ◎ Displayed when 1. Defective detection of position error is detected 2. Over-current protective circuit of indoor fan driving unit operates. 3. Lock of indoor fan 4. Check indoor P.C. board. P19 ◎ ● ◎ Error in 4-way valve system • Indoor heat exchanger temperature lowered after start of heating operation. Stop (Automatic reset) Displayed when 1. Check 4-way valve. error is detected 2. Check indoor heat exchanger (TC/TCJ) sensor. 3. Check indoor P.C. board. ◎ ● ◎ P31 Own unit stops while warning is output to other indoor units. Stop (Sub unit) (Automatic reset) Displayed when 1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08]. error is detected 2. Check indoor P.C. board. ◎ ◎ ● F01 Coming-off, disconnection or short of indoor heat exchanger sensor (TCJ) Stop (Automatic reset) Displayed when 1. Check indoor heat exchanger temperature sensor (TCJ). error is detected 2. Check indoor P.C. board. ◎ ◎ ● F02 Coming-off, disconnection or short of indoor heat exchanger sensor (TC) Stop (Automatic reset) Displayed when 1. Check indoor heat exchanger temperature sensor (TC). error is detected 2. Check indoor P.C. board. ◎ ◎ ● F10 Coming-off, disconnection or short of indoor heat exchanger sensor (TA) Stop (Automatic reset) Displayed when 1. Check indoor heat exchanger temperature sensor (TA). error is detected 2. Check indoor P.C. board. ◎ ◎ ● F29 Indoor EEPROM error • EEPROM access error Stop (Automatic reset) Displayed when 1. Check indoor EEPROM. (including socket insertion) error is detected 2. Check indoor P.C. board. E10 ◎ ● ● Communication error between indoor MCU • Communication error between fan driving MCU and main MCU Stop (Automatic reset) Displayed when 1. Check cables of remote controller. error is detected 2. Check power cables of indoor unit. 3. Check indoor P.C. board. E18 ◎ ● ● Regular communication error between master and sub indoor units or between main and sub indoor units Stop (Automatic reset) Displayed when 1. Check cables of remote controller. error is detected 2. Check indoor power cable. 3. Check indoor P.C. board. Error mode detected by outdoor unit ◎ : Flash, 〇 : Go on, ● : Go off Wireless sensor lamp display Operation Timer Ready ● ◎ ● ● ◎ ● ● ◎ ● – 68 – ◎ ○ ◎ ◎ ○ ◎ ◎ ● ◎ ◎ ● ◎ ◎ ● ◎ ◎ ● ◎ ◎ ● ◎ ◎ ◎ ○ ◎ ◎ ○ ◎ ◎ ○ Wired remote controller Diagnostic function Cause of operation Check code Status of air conditioner Condition Judgment and measures H01 Breakdown of compressor • Displayed when error is detected Stop Displayed when 1. Check power voltage. AC200V±20V error is detected 2. Overload operation of refrigerating cycle 3. Check current detection circuit at AC side. H02 Compressor does not rotate. • Over-current protective circuit operates after specified time passed when compressor had been activated. Stop Displayed when 1. Trouble of compressor (Compressor lock, etc.) : Replace compressor. error is detected 2. Defective cabling of compressor (Phase missing) 3. Phase-missing operation of power supply (3-phase model) H03 Stop Current detection circuit error • Current value at AC side is high even during compressor-OFF. • Phase of power supply is missed. L29 Outdoor unit and other errors • Communication error between CDB and IPDU (Coming-off of connector) • Heat sink temperature error (Detection of temperature over specified value) Stop L31 Phase detection protective circuit operates. (Normal models) Operation continues. Displayed when 1. Check power phase order (Reversed phase)/phase missing. (Compressor stops.) error is detected 2. Check outdoor P.C. board. P03 Discharge temperature error • Discharge temperature over specified value was detected. Stop Displayed when 1. Check refrigerating cycle. (Gas leak) error is detected 2. Trouble of PMV 3. Check Td sensor. P04 High-pressure protection error by TE sensor (Temperature over specified value was detected.) Stop Displayed when 1. Overload operation of refrigerating cycle error is detected 2. Check outdoor temperature sensor (TE). 3. Check outdoor CDB P.C. board. P22 Outdoor DC fan error Stop Displayed when 1. Defective detection of position error is detected 2. Over-current protective circuit of outdoor fan driving unit operates. 3. Lock of outdoor fan 4. Check outdoor CDB P.C. board. P26 Inverter over-current protective circuit operates. (For a short time) Short voltage of main circuit operates. Stop Displayed when 1. Inverter immediately stops even if restarted. : Compressor motor rare short error is detected 2. Check IPDU. : Cabling error P29 IPDU position detection circuit error Stop Displayed when 1. Position detection circuit operates even if operating compressor by removing 3P connector. : Replace IPDU. error is detected F04 Coming-off, disconnection or short of outdoor temperature sensor (TD) Stop Displayed when 1. Check outdoor temperature sensor (TD). error is detected 2. Check outdoor CDB P.C. board. F06 Coming-off, disconnection or short of outdoor temperature sensor (TE/TS) Stop Displayed when 1. Check outdoor temperature sensor (TE/TS). error is detected 2. Check outdoor CDB P.C. board. F08 Coming-off, disconnection or short of outdoor temperature sensor (TO) Operation continues. Displayed when 1. Check outdoor temperature sensor (TO). error is detected 2. Check outdoor CDB P.C. board. Displayed when 1. Compressor immediately stops even if restarted. : Check IPDU. error is detected 2. Phase-missing operation of power supply Check 3-phase power voltage and cables. Displayed when 1. Check cables of CDB and IPDU. error is detected 2. Abnormal overload operation of refrigerating cycle For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit. Error mode detected by remote controller or network adapter ◎ : Flash, 〇 : Go on, ● : Go off Wireless sensor lamp display Operation Timer — — Ready — ◎ ● ● ◎ ● ● ◎ ● ● – 69 – ◎ — ○ — ◎ — Wired remote controller Check code Diagnostic function Cause of operation Status of air conditioner Condition — Judgment and measures No check code is displayed. (Remote controller does not operate.) No communication with master indoor unit • Remote controller cable is not correctly connected. • Power of indoor unit is not turned on. • Automatic address cannot be completed. Stop E01*2 No communication with indoor master unit • Disconnection of inter-unit cable between remote controller and master indoor unit (Detected at remote controller side) Stop (Automatic restart) * When there is center, operation continues. Displayed when Signal receiving of remote controller is defective. error is detected 1. Check remote controller inter-unit cables. 2. Check remote controller. 3. Check indoor power cables. 4. Check indoor P.C. board. E02 Signal sending error to indoor unit (Detected at remote controller side) Stop (Automatic restart) * When there is center, operation continues. Displayed when Signal sending of remote controller is defective. error is detected 1. Check sending circuit inside of remote controller. : Replace remote controller. E09 Multiple master remote controllers are recognized. Stop (Detected at remote controller side) (Sub unit continues operation.) L20 Duplicated indoor central addresses on Central remote communication of central control system (AI-NET) (Detected by central controller side) controller 98 Remote controller power error, Defective indoor EEPROM 1. Check remote controller inter-unit cables. 2. Check remote controller. 3. Check indoor power cables. 4. Check indoor P.C. board. 5. Check indoor EEPROM. (including socket insertion) : Phenomenon of automatic address repetition occurred. Displayed when 1. Check there are multiple master units for 2 remote controllers error is detected (including wireless). : Master unit is one and others are sub units. Stop (Automatic restart) Displayed when 1. Check address setup of central control system network. (Network adapter SW01) error is detected 2. Check network adapter P.C. board. — *3 Operation continues. Displayed when 1. Check multiple network adapters. error is detected 2. Check inter-unit cable/miscabling of remote controller. : Only one network adapter on remote controller communication line — *3 Operation continues. Displayed when 1. Check communication line/miscabling. Check power of indoor unit. (According to handy remote controller) error is detected 2. Check communication. (XY terminals) 3. Check network adapter P.C. board. 4. Check central controller (such as central control remote controller, etc.). Continuation/stop (Based on a case) Multiple network adapters on remote controller communication line Central remote (Detected by central controller side) controller 99 — — — Interruption of central control system (AI-NET) communication circuit Central remote (Detected by central controller side) controller 97 — — — — Indoor Gr sub unit error Central remote (Detected by central controller side) controller b7 Displayed when Check the check code of corresponding unit by handy remote controller. error is detected *2 Check code is not displayed by wired remote controller. (Usual operation of air conditioner is disabled.) For wireless type models, E01 is notified by the display lamp. *3 These errors are related to communication of remote controllers (A, B) and central system (AI-NET, X, Y), and [E01], [E02], [E03], [E09], or [E18] is displayed or no check code is displayed on the remote controller according to the error contents. 10-3. Error Mode Detected by LED on Outdoor P.C. Board • When multiple errors are detected, the latest error is displayed. • When LED display is ○ (Go on), there is the main cause of trouble on the objective part of control at CDB side and the unit stops. • When LED display is ◎ (Flash), there is the main cause of trouble on the objective part of control at IPDU side and the unit stops. • When case thermostat operates, the communication is interrupted on the serial circuit. If continuing the case thermostat operation, a serial communication error occurs because serial sending to the indoor unit is interrupted. Check code No. CDB side IPDU side ○ : Go on Item LED display Type A Type B D800 (Red) D801 (Yellow) D802 (Yellow) D803 (Yellow) 1 TE sensor error F06 18 ○ ● ● ● 2 TD sensor error F04 19 ○ ○ ● ● 3 TS sensor error F06 18 ● ● ○ ● 4 TO sensor error F08 1B ● ○ ● ● 5 Discharge temp. error P03 1E ● ○ ○ ● 6 DC outdoor fan error P22 1A ○ ○ ○ ● 7 Communication error between IPDU (Abnormal stop) L29 1C ○ ● ● ○ 8 High-pressure release operation P04 ● ○ ● ○ 9 EEPROM error — — ○ ○ ● ○ 10 Communication error between IPDU (No abnormal stop) — — ● ● ○ ○ 11 G-Tr short-circuit protection P26 14 ◎ ● ● ● 12 Detection circuit error P29 16 ● ◎ ● ● 13 Current sensor error H03 17 ◎ ◎ ● ● 14 Phase missing detection H03 17 ● ● ● ◎ 15 Comp. lock error H02 1D ● ● ◎ ● 16 Comp. breakdown H01 1F ◎ ● ◎ ● ● : Go off 21 — ◎ : Flash (5Hz) <> The check codes are classified into Type A and Type B according to the used remote controller. Be sure to check the remote controller which you use. Type A : Neutral 2-cores type wired remote controller such as RBC-AMT21E, RBC-AS21E, and wireless remote controller kit such as TCB-AX21U (W)-E Type B : Polarized 3-cores type wired remote controller such as RBC-SR1-PE, RBC-SR2-PE, and central control remote controller such as RBC-CR64-PE – 70 – 10-4. Troubleshooting Procedure for Each Check Code 10-4-1. New Check Code/Present Check Code (Central Control Side) [E01 error]/*[99 error] * : When central controller [99] is displayed, there are other causes of error. Is inter-unit cable of A and B normal? NO Correct inter-unit cable of remote controller. YES Is there no disconnection or contact error of connector on harness from terminal block of indoor unit? YES Correct connection of connector. Check circuit cables. NO NO Is group control operation? YES Is power of all indoor units turned on? NO Check power connection of indoor unit. (Turn on power again.) NO Check indoor P.C. board (MCC-1402). Replace Defect YES Correct as a master unit/a sub unit (Remote controller address connector) YES Is power supplied to remote controller? AB terminal: Approx. DC18V YES Are two remote controllers set without master unit? NO Check remote controller P.C. board. Defect Replace [E09 error]/*[99 error] * : When central controller [99] is displayed, there are other causes of error. Are two remote controllers set without master unit? YES Correct as a master unit/a sub unit (Remote controller address connector) NO Check remote controller P.C. board. Defect Replace – 71 – [E04 error]/[04 error] Does outdoor unit operate? NO YES Is setup of group address correct? NO Check item code [14]. YES Are 1, 2, 3 inter-unit cables normal? NO Correct inter-unit cable. YES Are connections from connectors of inter-terminal blocks (1, 2, 3) of indoor/outdoor units normal? NO Correct connection of connector. YES Does voltage between 2 and 3 of inter-terminal blocks (1, 2, 3) of indoor unit vary?* YES Check indoor P.C. board (MCC-1402). Replace Defect NO * As shown in the following figure, perform measurement within 20 seconds after power ON. Black 3 S5277G White 2 1 Inter-terminal block For RAV-SM560AT-E, main circuit on control P.C. board Is DC280V applied between terminals of electrolytic capacitor of IPDU main circuit? For RAV-SM560AT-E, check case thermo. NO Replace IPDU. YES Is DC7V power supplied to CDB? Are cablings between Pin 2 and Pin 5 of CN800 and between IPDU and CDB normal? NO Replace IPDU. Correct connection of connector. YES Is case thermo (CN500) connected? YES Check indoor P.C. board (MCC-1402 or MCC-1403). Defect Replace Check CDB. Replace Defect NO Does case thermo operate? YES Check/Correct charged refrigerant amount. – 72 – NO Correct connection of connector. [E10 error]/[CF error] Check indoor control P.C. board (MCC-1402). Defect Replace [E18 error]/[97 error] *[99 error] * : When central controller [99] is displayed, there are other causes of trouble. NO Correct inter-unit cable of remote controller. Is inter-unit cable of A and B normal? YES Is there no disconnection or contact error of connector on harness from terminal block of indoor unit? YES Correct connection of connector. Check circuit cables. NO NO YES Is group control operation? Is power of all indoor units turned on? NO Check indoor P.C. board (MCC-1402). Defect Replace Check power connection of indoor unit. (Turn on power again.) [E08, L03, L07, L08 error]/ *[96 error] [99 error] * : When central controller [99] is displayed, there are other causes of trouble. E08 L03 L07 L08 : Duplicated indoor unit numbers : Two or more master units in a group control : One or more group addresses of [Individual] in a group control : Unset indoor group address (99) If the above is detected when power has been turned on, the mode automatically enters in automatic address setup mode. (Check code is not displayed.) However, if the above is detected during automatic address setup mode, the check code may be displayed. [L09 error]/[46 error] YES Set capacity data of indoor unit. (Setup item code (DN) = 11) Is capacity of indoor unit unset? NO Check indoor P.C. board (MCC-1402). Defect Replace – 73 – [L20 error]/[98 error] Are cable connections to communication line X, Y normal? NO Correct cable connection YES Is central controller [98] displayed? Check indoor P.C. board (MCC-1402 or MCC-1403). Replace Defect NO YES Is indoor remote controller [L20] displayed? YES Are not multiple same central control network addresses connected? YES Correct central control network address. NO Check central controller (including network adapter). Replace. Defect [L30 error]/[B6 error] Are outside devices of connector CN80 connected? NO Check indoor P.C. board (MCC-1402 or MCC-1403). Replace Defect NO Check outside devices. Replace Defect YES Do outside devices normally operate? YES Check operation cause. [b7 error] (Central controller) Is group operation performed? NO YES Is check code displayed on sub unit of main or sub remote controller? Check indoor P.C. board (MCC-1402 or MCC-1403). Replace Defect NO YES Check corresponding indoor/outdoor units. – 74 – [P10 error]/[Ob error] NO Is connection of float switch connector (Indoor control P.C. board CH34) normal? Correct connection of connector. YES NO Does float switch operate? YES Is circuit cabling normal? NO Check and correct cabling/wiring. YES Check indoor P.C. board (MCC-1402 or MCC-1403). Defect Replace NO Does drain pump operate? YES Is power of drain pump turned on? NO Check indoor P.C. board (MCC-1402 or MCC-1403). Defect Replace YES Check drain pipe, etc. Replace drain pump. Check cabling. [F10 error] [0C error] Is connection of TA sensor connector (indoor P.C. board CN104) normal? NO Correct connection of connector. YES Are characteristics of TA sensor resistance value normal? YES NO Replace TA sensor. * Refer to Characteristics-1. Check indoor P.C. board (MCC-1402 or MCC-1403). Defect Replace – 75 – [P12 error]/[11 error] Turn off the power. Are not there connections errors or disconnection on connectors CN333 and CN334 of indoor unit P.C. board (MCC-1402)? YES Correct connection of connector. NO Remove connectors CN333 and CN334 of indoor unit P.C. board (MCC-1402). Does the fan rotate without trouble when handling the fan with hands? NO Replace indoor fan motor. YES Are resistance values between phases at fan motor connector CN333 motor side of indoor P.C. board (MCC-1402) correct? *1 YES Is resistance value of fan motor connector CN333 at motor side of indoor P.C. board (MCC-1402) correct? *2 YES Is signal output of indoor fan motor position detection correct? *3 YES NO Replace indoor fan motor. *1 • Are not coil windings between 1 (Red lead) and 3 (White lead), between 3 (White lead) and 5 (Black lead), between 5 (Black lead) and 1 (Red lead) opened or shorted? For resistance, see the following values. AIU-P401H/HR, P451, P501, P561, P631, P711, P801 Approx. 70 to 100 AIU-P1121H/HR, P1401, P1601 Approx. 35 to 50 • Is not earthed between cabinet and 1, 3, 5 10M or more NO Replace indoor fan motor. *2 Check resistance of fan motor position detection circuit. Is not coil winding between 1 (Yellow lead) and 4 (Pink lead) opened or shorted? Resistance: Approx. 5 to 20k NO Replace indoor fan motor. *3 Check fan motor position detection signal. • Using a tester, measure the voltage between CN334 1 and 5 of indoor P.C. board (MCC-1402) under condition that CN333 and CN334 are mounted and the power is turned on. Rotate the fan slowly with hands, and check the pin voltage swings between 0 to 5V voltage. • Between 4 and 5 : 5V CN333 Check indoor P.C. board (MCC-1402). Replace Defect CN334 – 76 – [P22 error]/[1A error] (RAV-SM800AT-E) Are connections of CN301 and CN300 of P.C. board correct? YES Does the fan rotate without trouble when handling the fan with hands under condition of removing CN301 and CN300 from P.C. board? CN301 NO YES The status that the resistance values between leads below are 50 to 80 for 40W motor (ICF-140-40) and 25 to 55 for 60W motor (ICF-140-60-1) is normal. Between 1 (Red lead) and 2 (White lead) Between 2 (White lead) and 3 (Black lead) Between 3 (Black lead) and 1 (Red lead) of motor winding of connector (CN301) NO CN300 YES The status that there is 5k to 20k resistance values between 1 (Yellow lead) and 4 (Pink lead) of motor position detection of connector (CN300) is normal. * Connector of RAV-SM560AT-E differs from that of RAV-SM800AT-E. NO CN300: Motor coil winding CN301: Motor position detection YES Normal fan motor (Control or CDB P.C. board) Defective fan motor (Control P.C. board or CDB P.C. board) NOTE : However, GND circuit error inside of the motor is rarely detected even if the above check is carried out. When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor. Single phase Single phase RAV-SM560AT-E RAV-SM800AT-E Control P.C. board CDB P.C. board Fan motor winding CN300 CN301 Motor position detection CN301 CN300 Objective P.C. board Fan motor winding Motor position detection – 77 – [P19 error]/[08 error] Is operation of 4-way valve normal? NO Is voltage applied to 4-way valve coil terminal in heating operation? YES NO NO YES Is flow of refrigerant by electron expansion valve normal? Check 4-way valve Defect Replace YES Check and replace electron expansion valve. NO Is circuit cable normal? YES NO Check and correct circuit. Are characteristics of TC sensor resistance value normal? * Refer to Characteristics-2. YES NO Check CDB P.C. board. Replace TC sensor. YES Check CDB P.C. board. Replace Defect Check indoor P.C. board. Defect Replace * For RAV-SM560AT-E, check control P.C. board. • In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error]. [F02 error]/[0d error] Is connection of TC sensor connector (Indoor P.C. board CN101) normal? NO Correct connection of connector. YES Are characteristics of TC sensor resistance value normal? YES NO Replace TC sensor. * Refer to Characteristics-2. Check indoor P.C. board (MCC-1402). Defect Replace – 78 – [F01 error]/[0F error] Is connection of TCJ sensor connector (Indoor P.C. board CN102) normal? NO Correct connection of connector. YES Are characteristics of TCJ sensor resistance value normal? YES NO Replace TCJ sensor. * Refer to Characteristics-2. Check indoor P.C. board (MCC-1403). Replace Defect [P26 error]/[14 error] Is power voltage normal? NO Improve the power supply line. YES Are connections of cabling/connector normal? Check and correct circuit cables. Correct connection of connector. Check and correct reactor connection. NO YES * For RAV-SM560AT-E, check RY01 on the control P.C. board. Does RY01 relay of IPDU operate? YES Are not “P26” and “14” errors output when an operation is performed by removing 3P connector of compressor? NO NO YES * Single-phase type is not provided to RAV-SM560AT-E. YES Replace IPDU. Is not AC fuse fused? * Replace control P.C. board of RAV-SM560AT-E. NO Replace IPDU. * Replace control P.C. board of RAV-SM560AT-E. Is compressor normal? NO YES Check IPDU. Defect Replace Check rare short of compressor trouble. Defect Replace – 79 – [P29 error]/[16 error] NO Are connections of cable/connector normal? Check and correct circuit cabling such as cabling to compressor. YES NO Is compressor normal? YES Is not earthed? YES Compressor error Replace Compressor error Replace Compressor error Replace NO Is not winding shorted? (Is resistance between windings 0.6 to 1.2 ?) YES NO Is not winding opened? YES NO Check IPDU P.C. board. Replace Defect * For RAV-SM560AT-E, replace control P.C. board. [H03 error]/[17 error] Are cablings of power and current sensor normal? NO Check and correct circuit cables. YES Check IPDU. Defect Replace * For RAV-SM560AT-E, replace control P.C. board. – 80 – [F06 error]/[18 error] Are connections of TE/TS sensor connectors of CDB CN604/CN605 normal? YES Are characteristics of TE/TS sensor resistance values normal? NO Correct connection of connector. * (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor) NO Replace TE and TS sensors. YES Check CDB. Defect Replace * Refer to Characteristics-3. [F04 error]/[19 error] Is connection of TD sensor connector of CDB CN600 normal? YES Are characteristics of TD sensor resistance value normal? NO Correct connection of connector. * (For RAV-SM560AT-E, CN601 TD sensor) NO Replace TD sensor. YES Check control P.C. board. Replace Defect * Refer to Characteristics-4. [F08 error]/[1b error] Is connection of TO sensor connector of CDB CN601 normal? YES Are characteristics of TO sensor resistance value normal? NO Correct connection of connector. * (For RAV-SM560AT-E, CN602 TO sensor) NO Replace TO sensor. YES Check CDB. Replace Defect * Refer to Characteristics-5. – 81 – [L29 error]/[1C error] Are connections of CDB CN800 and CDB IPDU CN06 connectors normal? NO Correct connection of connector. YES Was the error just after power ON determined? YES Are cabling/connector normal? NO Check cabling between IPDU and CDB and connector. YES NO IPDU P.C. board error Defect Replace Is there no abnormal overload? YES Improve and eliminate the cause. NO Is IPDU P.C. board come to closely contact with heat sink? NO Correct mounting. YES IPDU P.C. board error Defect Replace [H02 error]/[1d error] Is power voltage normal? NO Improve power line. YES Are connections of cable/connector normal? Check and correct circuit cabling such as cabling to compressor (phase missing) and connector. NO YES Is compressor normal? YES NO Is there no slackened refrigerant? NO Compressor lock Replace YES Does electron expansion valve normally operate? NO Check TE and TS sensors. Replace Check electron expansion valve. Replace YES Check IPDU and CDB. Defect Replace – 82 – * For RAV-SM560AT-E, replace control P.C. board. [P03 error]/[1E error] Is protective control such as discharge temprelease control normal? NO Are connections of cable/connector normal? YES NO Correct the cabling and connection of connector. YES Check parts. Defect Is charged refrigerant amount normal? NO Replace Check and correct the charged refrigerant amount. YES Is not abnormal overload? YES Improve and delete the cause NO Are characteristics of TD sensor resistance value normal? YES NO Replace TD sensor. * Refer to Characteristics-4. Check CDB. Replace Defect * For RAV-SM560AT-E, replace control P.C. board. [H01 error]/[1F error] Is power voltage normal? NO Improve power line. YES Is not abnormal overload? YES Improve and delete the cause. NO Is the circuit detected by current sensor normal? NO Check and correct circuit cables. YES Check IPDU. Defect Replace * For RAV-SM560AT-E, replace control P.C. board. – 83 – [P04 error]/[21 error] Is high-voltage protective operation by TE sensor normal? NO YES NO Is connection of cabling connector normal? Correct connection of cabling connector. YES Check TE sensor. Defect Replace NO Does cooling outdoor fan normally operate? YES NO Is connection of connector normal? Correct connection of connector. YES NO Is fan motor normal? Replace fan motor. YES NO Does PMV normally operate? YES Do not TD and TO sensors come off the detection part? Correct coming-off. YES Check TE, TC, TS sensors. Replace electron expansion valve. Are characteristics of TD, TO, TC sensor resistance values normal? YES Check charged refrigerant amount. Check liquid/gas valves. Check abnormal overload. NO NO Replace TD, TO, and TC sensors. * Refer to Characteristics-3 and 4. Check CDB. Defect Replace * For RAV-SM560AT-E, replace control P.C. board. – 84 – [97 error] (Central controller) NO Is X, Y communication line normal? Correct communication line. YES Are connections between connectors CN02, CN03 of network adapter P.C. board and connectors CN309, CN41 of indoor P.C. board (MCC-1402 or MCC-1403, normal? NO Correct connection of connector. YES NO Is A, B communication line normal? Check connections of A, B terminal blocks. Correct communication line of remote controller. YES YES Is there no connection error of power line? Correct power cable. NO Is not power of source power supply turned on? YES Turn on the source power supply. NO YES Did a power failure occur? Clear the check code. NO YES Is the network address changed form remote controller? NO YES Is there no noise source, etc.? Eliminate noise, etc. NO Can central remote controller control normally other indoor units? Is handling of central remote controller reflected on the operation status of indoor unit? NO (Same as others) Check central controller. Defect Replace YES Does network adapter P.C. board LED (D01) go on? NO YES Can handy remote controller control normally other indoor units? NO YES Check network adapter P.C. board and power transformer. Defect Replace – 85 – Check indoor P.C. board (MCC-1402 or MCC-1403). Defect Replace [E03 error] (Master indoor unit) [E03 error] is detected when the indoor unit cannot receive a signal sent from the main remote controller (and central controller). In this case, check the communication cables of the remote controllers A and B, the central control system X and Y. As communication is disabled, [E03] is not displayed on the main remote controller and the central controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively. If [E03] occurs during an operation, the air conditioner stops. [F29 error] / [12 error] [F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM) on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board. * If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written, the automatic address mode is repeated. In this time, the central controller displays [97 error]. (Power ON) (Approx. 3 minutes) [SET] is displayed on main remote controller. (Approx. 1 minute) [SET] goes off. (Repetition) LED (D02) on indoor unit P.C. board flashes with 1Hz for approx. 10 seconds. Reboot (Reset) [P31 error] (Sub indoor unit) When the master unit of a group operation has detected [E03], [L03], [L07], or [L08] error, the sub unit of the group operation detects [P31 error] and then it stops. There is no display of the check code or alarm history of the main remote controller. (In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03], [L07], or [L08] error.) – 86 – 10-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature 20 40 TA sensor TC, TCJ sensor 30 Caracteristics-2 Caracteristics-1 Resistance (k ) Resistance (k ) 10 20 10 0 10 20 30 40 0 –10 50 0 10 Temperature [ C] 20 30 40 50 60 70 Temperature [ C] 20 200 TE, TO, TS sensor Caracteristics-3 Resistance (k ) (10 C or higher) Resistance (k ) (10 C or lower) 10 100 0 -10 0 10 20 30 40 50 60 70 0 Temperature [ C] TD sensor 200 20 Caracteristics-4 Resistance (k ) (50 C or higher) Resistance (k ) (50 C or lower) 10 100 0 50 Temperature [ C] – 87 – 100 0 11. REPLACEMENT OF SERVICE INDOOR P.C. BOARD [Requirement when replacing the service indoor P.C. board assembly] In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replacement, the type and capacity code exclusive to the corresponding model have been stored at shipment from the factory and the important setup data such as system/indoor/group address set in (AUTO/MANUAL) mode or setting of high ceiling selection have been stored at installation time. Replace the service indoor P.C. board assembly according to the following procedure. After replacement, check the indoor unit address and also the cycle by a test run. CASE 1 Before replacement, power of the indoor unit can be turned on and the setup data can be readout from the wired remote controller. Read EEPROM data *1 (ref. P89) ò Replace service P.C. board & power ON *2 (ref. P89) ò Write the read data to EEPROM *3 (ref. P90) ò Power reset (All indoor units in the group when group operation) CASE 2 Before replacement the setup data can not be readout from the wired remote controller. Replace service P.C. board & power ON *2 (ref. P89) ò Write the data such as high ceiling setup to EEPROM (According to the customers’ information) *3 ò Power reset (All indoor units in the group when group operation) – 88 – r1 Readout of the setup data from EEPROM (Data in EEPROM contents, which have been changed at the local site, are read out together with data in EEPROM set at shipment from the factory.) 1. Push SET , , and buttons of the remote controller at the same time for 4 seconds or more. (Corresponded with No. in Remote controller) When group operation, the master indoor unit address is displayed at the first time. In this time, the item code (DN) 10 is displayed. The fan of the selected indoor unit operates and the flap starts swinging if any. 2. Every pushing button, the indoor unit address in the group are displayed successively. Specify the indoor unit No. to be replaced. buttons, the item code (DN) can be moved up and down one by one. / 3. Using the set temperature 4. First change the item code (DN) from 10 to 01. (Setting of filter sign lighting time) Make a note of the set data displayed in this time. / 5. Next change the item code (DN) using the set temperature buttons. Also make a note of the set data. 6. Repeat item 5. and make a note of the important set data as shown in the later table (Ex.). • 01 to 9F are provided in the item code (DN). On the way of operation, DN No. may come out. 7. After finishing making a note, push button to return the status to usual stop status. (Approx. 1 minute is required to start handling of the remote controller.) 1 2 3 6 Minimum requirements for item code DN Contents 10 Type 11 Indoor unit capacity 12 Line address 13 Indoor address 14 Droup address (1) Type and capacity of the indoor unit is necessary to set the revolutions frequency of the fan. (2) If Line/Indoor/Group addresses differ from those before replacement, the mode enters in automatic address setup mode and a manual resetting may be required. r2 Replacement of service P.C. board 1. Replace the P.C. board with a service P.C. board. In this time, setting of jumper line (cut) or setting of (short-circuit) connecting connectors on the former P.C. board should be reflected on the service P.C. board. 2. According to the system configuration, turn on power of the indoor unit with any method in the following items. a) In case of single (individual) operation Turn on the power supply. 1) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to r3. (Line address = 1, Indoor address = 1, Group address = 0 (Individual) are automatically set.) buttons of the remote controller at the same time for 4 seconds or more 2) Push SET , , and ( operation), interrupt the automatic address setup mode, and then proceed to r3. (Unit No. ALL is displayed.) b) In case of group operation Turn on power of the indoor unit of which P.C. board has been replaced with the service P.C. board with any method in the following items. 1) Turn on power of the replaced indoor unit only. (However, the remote controller is also connected. Otherwise r3 operation cannot be performed.) Same as 1) and 2) in item a). 2) Turn on power of the multiple indoor units including replaced indoor unit. • Only 1 system for twin, triple, double twin • For all units in the group Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to r3. * The master unit of a group may change by setup of automatic address. The line address/indoor address of the replaced indoor unit are automatically set to the vacant addresses except addresses belonging to other indoor units which have not been replaced. It is recommended to make a note that the refrigerant line which includes the corresponding indoor unit and that the corresponding indoor unit is master or sub in the group control. 1 – 89 – r3 Writing of the setup contents to EEPROM (The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.) 1. Push SET , , and buttons of the remote controller at the same time for 4 seconds or more. (Corresponded with No. in Remote controller ) In group operation control, the master indoor unit No. is displayed at the first time. (If the automatic address setup mode is interrupted in item 2. - a) - 2) in the previous page, the unit No. ALL is displayed.) In this time, the item code (DN) 10 is displayed. The fan of the selected indoor unit operates and the flap starts swinging if any. 1 2 button, the indoor unit numbers in the group control are displayed successively. 2. Every pushing Specify the indoor unit No. of which P.C. board has been replaced with a service P.C. board. (When the unit No. ALL is displayed, this operation cannot be performed.) 3. Using the set temperature / buttons, the item code (DN) can be moved up and down one by one. 4. First set a type and capacity of the indoor unit. (Setting the type and capacity writes the data at shipment from the factory in EEPROM.) 1) Set the item code (DN) to 10. (As it is) buttons, set up a type. / 2) Using the timer time (For example, 4-way air discharge cassette type is 0001) Refer to the attached table. 3 4 3) Push SET button. (OK when the display goes on.) 5 buttons, set 11 to the item code (DN). / 4) Using the set temperature 5) Using the timer time buttons, set the capacity. / (For example, 0012 for class 80) Refer to the attached table. 6) Push SET button. (OK when the display goes on.) 6 7) Push button to return the status to usual stop status. (Approx. 1 minute is required to start handling of the remote controller.) 5. Next write the contents which have been set up at the local site such as the address setup in EEPROM. Repeat the above procedure 1. and 2. 6. Using the set temperature / buttons, set 01 to the item code (DN). (Setup of lighting time of filter sign) 7. The contents of the displayed setup data in this time should be agreed with the contents in the previous memorandum in r1. 1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time buttons, and then push SET button. (OK when the display goes on.) / 2) There is nothing to do when data agrees. 8. Using the set temperature / buttons, change the item code (DN). As same as the above, check the contents of the setup data and then change them to data contents in the previous memorandum. 9. Then repeat the procedure 7. and 8. button to return 10. After completion of setup, push the status to the usual stop status. (Approx. 1 minute is required to start handling of the remote controller.) UNIT No. * 01 to 9F are provided in the item code (DN). On the way of operation, DN No. may come out. When data has been changed by mistake and SET button has been pushed, the data can be returned to the data before change by pushing button if the item code (DN) was not yet changed. UNIT 6 SET DATA R.C. 6 4 1 SET 5 – 90 – No. CL 2 3 Memorandum for setup contents (Item code table (Example)) DN Item Memo 01 Filter sign lighting time According to type 02 Dirty state of filter 0000: Standard 03 Central control address 0099: Unfixed 06 Heating suction temp shift 0002: +2°C (Floor type: 0) 0F Cooling only 0000: Shared for cooling/heating 10 Type According to model type 11 Indoor unit capacity According to capacity type 12 Line address 0099: Unfixed 13 Indoor unit address 0099: Unfixed 14 Group address 0099: Unfixed 19 Flap type (Adjustment of air direction) According to type 1E Temp difference of automatic cooling/ heating selecting control points 0003: 3 deg (Ts ± 1.5) 28 Automatic reset of power failure 0000: None 2A Option 0002: At shipment 2b Thermo output selection (T10 ‡B) 0000: Thermo ON 2E Option 0000: 32 Sensor selection 0000: Body sensor 5d High ceiling selection 0000: Standard 60 Timer set (Wired remote controller) 0000: Available 8b Correction of high heat feeling 0000: None Type Item code [10] Setup data Type Abbreviated name 0001* 4-way air discharge cassette RAV-SM560/800TU-E 0006 Concealed duct RAV-SM560/800BT-E * Initial setup value of EEPROM installed on the service P.C. board Indoor unit capacity Item code [11] Setup data Model 0000* Invalid 0009 56 0012 80 * Initial setup value of EEPROM installed on the service P.C. board – 91 – 12. SETUP AT LOCAL SITE AND OTHERS 12-1. Indoor Unit 12-1-1. Test Run Setup on Remote Controller button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display. 1. When pushing Then push button. • “TEST” is displayed on LC display during operation of Test Run. • During Test Run, temperature cannot be adjusted but air volume can be selected. • In heating and cooling operation, a command to fix the Test Run frequency is output. • Detection of error is performed as usual. However, do not use this function except case of Test Run because it applies load on the unit. 2. Use either heating or cooling operation mode for [TEST]. NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after operation has stopped. 3. After a Test Run has finished, push button again and check that [TEST] on LC display has gone off. (To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote controller.) (Option for 4-way air discharge cassette type) 1. Turn off power of the unit. Remove the adjuster attached with sensors from the ceiling panel. For removing, refer to the Installation manual attached to the ceiling panel. (Be careful to handle the adjuster because cables are connected to the sensor.) Remove the sensor cover from the adjuster. (1 screw) 2. Change ON of Bit [1: TEST] of the sensor P.C. board switch [S003] to OFF. Mount the sensor cover and mount the adjuster with sensor to the ceiling panel. Turn on power of the unit. 3. Push button on the wireless remote controller and select [COOL] or [HEAT] operation mode using button. (All the display lamps of sensors on the wireless remote controller flash during Test Run.) • Do not perform Test Run operation in other modes than [HEAT] / [COOL] mode. • Detection of error is performed as usual. 4. After Test Run operation, push button to stop the operation. 5. Turn off power of the unit. Return Bit [1] of the sensor P.C. board switch [S003] to the original position. (ON → OFF) Mount the adjuster with sensors to the ceiling panel. Bit 1 : OFF to ON S003 1 2 3 4 ON Sensor cover Sensor P.C. board Adjust corner cap – 92 – 12-1-2. Setup to Select Function Use this function while the indoor unit stops. 1 2 3 4 5 buttons concurrently for 4 seconds or more. Push SET , , and The unit No. displayed at the first time indicates the indoor unit address of the master unit in the group control. In this time, fan and flap of the selected indoor unit operate. Every pushing button, the indoor unit numbers in the group control are displayed successively. In this time, fan and flap of the selected indoor unit only operate. Using the set temperature Using the timer time / / buttons, set the item code (DN). buttons, select the setup data. Push SET button. (OK if display goes on.) • To change the selected indoor unit, proceed to • To change the item to be set, proceed to . 3 6 Pushing 2. button returns the status to usual stop status. SET DATA UNIT No. R.C. 6 No. 4 3 UNIT 1 SET CL 5 2 1 2 3 4 – 93 – 5 6 END Item No. (DN) table (Selection of function) Item DN Description At shipment 01 Filter sign lighting time 0000 : None 0002 : 2500H 0004 : 10000H 0001 : 150H 0003 : 5000H 0005 : Clogged sensor used According to type 02 Dirty state of filter 0000 : Standard 0001 : High degree of dirt (Half of standard time) 0000 : Standard 03 Central control address 0001 : No.1 unit 0099 : Unfixed to 0064 : No.64 unit 0099 : Unfixed 06 Heating suction temp 0000 : No shift shift 0002 : +2°C to 0001 : +1°C 0010 : -10°C (Up to recommendation + 6) 0002 : +2°C (Floor type 0000: 0°C) 0001 : Cooling only (No display of [AUTO] [HEAT]) 0000 : Shared for cooling/ heating 0F Cooling only 0000 : Heat pump 10 Type 0000 : (Air discharge cassette 1) 0001 : (Air discharge cassette 4) to 0037 According to model type 11 Indoor unit capacity 0000 : Unfixed 0001 to 0034 According to capacity type 12 Line address 0001 : No.1 unit to 0030 : No.30 unit 0099 : Unfixed 13 Indoor unit address 0001 : No.1 unit to 0064 : No.64 unit 0099 : Unfixed 14 Group address 0000 : Individual 0002 : Sub of group 0001 : Master of group 0099 : Unfixed 19 Flap type (Adjustment of air direction) 0000 : No flap 0004 : 4-way 0001 : Swing only According to type 1E Temp difference of 0000 : 0 deg to 0010 : 10 deg automatic cooling/ (For setup temperature, reversal of COOL/HEAT by ± (Data value)/2) heating mode selection COOL → HEAT, HEAT →COOL 0003 : 3 deg (Ts±1.5) 28 Automatic reset of power failure 0000 : None 2A Option 2b Thermo output selection (T10 ƒ) 2E Option 0000 : Default 30 Option 0000 : Default 31 Option 0000 : Default 32 Sensor selection 40 Option 0003 : Default 5d High ceiling selection 0000 : Standard filter (Air volume selection) 0001 : Oil guard, Super-long life, Optical regenerative deodorization 0003 : High performance (65%), High performance (90%), High antibacterial performance (65%) 0000 : Standard 60 Timer set (Wired remote controller) 0000 : Available (Operable) 0001 : Unavailable (Operation prohibited) 0000 : Available 8b Correction of high heat feeling 0000 : None 0001 : Correction 0000 : None 0000 : None 0001 : Reset 0002 : Default 0000 : Indoor thermo ON 0000 : Body TA sensor 0001 : Output of outdoor comp-ON receiving 0001 : Remote controller sensor – 94 – 0000: Thermo. ON 0000 : Body sensor 12-1-3. Cabling and Setting of Remote Controller Control 2-remote controller control (Controlled by two remote controllers) One or multiple indoor units are controlled by two remote controllers. (Max. 2 remote controllers are connectable.) Remote controller Remote controller switch (Sub) switch (Master) • 1 indoor unit is controlled by 2 remote controllers Sold separately Sold separately Remote controller cables (Procured locally) Terminal block for remote controller cables A B Indoor unit 1 2 3 1 2 3 Outdoor unit (Setup method) One or multiple indoor units are controlled by two remote controllers. (Max. 2 remote controllers are connectable.) How to set wired remote controller to sub remote controller Insert the remote controller address connector provided on the rear side of the remote controller switch P.C. board into Sub in exchange for Master. Rear side of remote controller P.C. board Remote controller address connector Master remote controller Sub remote controller S003 Bit 1 : OFF to ON 1 2 3 ON Sensor cover 4 How to set wireless remote controller to sub remote controller Change OFF of Bit [3: Remote controller Sub/ Master] of switch S003 to ON. Sensor P.C. board Adjust corner cap [Operation] 1. The operation contents can be changed by Last-push-priority. 2. Use a timer on either Master remote controller or Sub remote controller. – 95 – 12-1-4. Monitor Function of Remote Controller Switch n Call of sensor temperature display Each sensor temperature of the remote controller, indoor unit, and outdoor unit can become known by calling the service monitor mode from the remote controller. SET DATA UNIT No. R.C. No. 1 2 Push + buttons simultaneously for 4 seconds or more to call the service monitor mode. The service monitor goes on, the master indoor unit No. is displayed, and then temperature of the item code 00 is displayed. Push the temperature setup / buttons to select the sensor No. (Item code) of the sensor to be monitored. The sensor numbers are described below: 4 2 UNIT SET CL 1 3 1 2 3 4 Returned to usual display Item code Indoor unit data Data name 00 Room temp (under control) *1 01 Room temp (remote controller) 02 Indoor suction temp 03 Indoor coil temp (TCJ) 04 Indoor coil temp (TC) Data name Item code Outdoor unit data 60 Heat exchanger temp TE 61 Outside temp TO 62 Discharge temp TD 63 Suction temp TS 64 — 65 Heat sink temp THS *1 Only master unit in group control 3 4 The temperature of indoor units and outdoor unit in a group control can be monitored by pushing button to select the indoor unit to be monitored. Pushing button returns the display to usual display. – 96 – n Calling of error history The error contents in the past can be called. SET DATA 1 2 3 UNIT No. R.C. Push + buttons simultaneously for 4 seconds or more to call the service check mode. Service Check goes on, the item code 01 is displayed, and then the content of the latest alarm is displayed. The number and error contents of the indoor unit in which an error occurred are displayed. 3 2 UNIT SET In order to monitor another error history, push the set temperature / buttons to change the error history No. (Item code). Item code 01 (Latest) → Item code 04 (Old) NOTE : Four error histories are stored in memory. CL 1 1 button returns the display to usual Pushing display. No. 2 3 Returned to usual display button, otherwise all the error histories of Do not push the indoor unit are deleted. (Group control operation) In a group control, operation of maximum 8 indoor units can be controlled by a remote controller. The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to setting on the remote controller. OUT IN OUT 1-1 IN OUT Master 2-1 IN OUT 3-1 IN OUT 4-1 IN 7-1 Max. 8 units Remote controller (1) Display range on remote controller The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the master unit is reflected on the remote controller. (2) Address setup Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic address. If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the system is rebooted and the automatic address setting will be judged again. 1) Connect 3 In/Out cables surely. 2) Check line address/indoor address/group address of the unit one by one. 3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the unit No. is not duplicated with one of another unit. – 97 – 12-2. Network Adapter Model name: TCB-PCNT20E 12-2-1. Function A network adapter is an optional P.C. board to connect the indoor unit to AI net (Central control remote controller). 12-2-2. Microcomputer Block Diagram Central control remote controller Remote controller Indoor unit Optional communication P.C. board CN41 Indoor control P.C. board CN309 AC220240V Terminal block (A.B) Power transformer AC14V CN02 Remote controller communication circuit CN03 AI-NET communication circuit MCU Terminal block (X.Y) EEPROM CN01 5V power supply 5V Network Network address setup switch Communication units: Total 64 units Communication distance: 1km 12-2-3. Network Address Setup Switch (SW01) Item No. 1 Setup contents LSB 12 3 4 5 6 2 3 4 Central control address ××× × × × : No.1 unit × : Switch OFF 〇×× × × × : No.2 unit 〇 : Switch OFF : 〇〇〇 〇 〇 × : No.63 unit 5 6 MSB 〇〇〇 〇 〇 〇 : No.64 unit 7 Setup availability from remote controller Switch OFF : Setup available from remote controller 8 Switch ON : Setup unavailable from remote controller 12-2-4. LED Display Specification LED No. Function Go on Go off D01 (Red) Communication status: Remote controller During communication No communication (including communication error) D02 (Red) Communication status: Center During communication No communication (including communication error) D03 (Red) Operation status of air conditioner Running Stop D04 (Red) Air conditioner error Error Normal * For positions of LED, refer to P.C. board external view. – 98 – 12-2-5. Communication Cable Specifications No. Communication circuit 1 2 Remote controller communication side AI NET side Communication cable specifications Cable Neutral 2-cable type Cable type CVV (JIS C3401) Controlling vinyl insulation vinyl seal cable VCTF (JIS C3306) Vinyl cab tire round type cord VCT (JIS C3401) 600V vinyl cab tire cable VVR (JIS C3401) Vinyl insulation seal cable round type MVVS Cable with net shielding for instrumentation CPEVS Shielded polyethylene insulation vinyl seal cable Cable dia. 0.5 to 2.0 mm² Cable length Total cable length Max. 500m (Up to 400m when there is wireless remote controller in group) Cable Neutral 2-cable type Cable type MVVS Cable with net shielding for instrumentation Cable dia. 1.25 mm² ≤ 500 m, 2.0 mm² ≤ 1 km Cable length Total cable length : Up to 500m when using 1.25mm² cable, Up to 1000m when using 2.0mm² cable 12-2-6. Cable Connection • Install a network adapter per 1 group of the group control (including single unit control). Also install a network adapter to one of the indoor units in the group control. Central control remote controller Indoor unit Indoor unit Indoor unit Indoor unit Indoor control P.C. board Indoor control P.C. board Indoor control P.C. board Indoor control P.C. board A B A B A B A B X Y Network adapter Remote controller Connectable indoor units per group: Up to 8 units (1-remote controller system*) * In case of 2-remote controllers system, the connectable indoor units are up to 7 units. – 99 – Indoor unit Indoor unit Indoor control P.C. board Indoor control P.C. board A B A B X Y Network adapter 12-3. How to Set an Address Number When connecting indoor units to the central control remote controller by using a network adapter, it is required to set up a network address No. • The network address No. should be agreed with the line No. of the central control remote controller. • When the unit was shipped from the factory, the network address has been set to 1. The following two methods to set the network address are provided. 1. How to set from the remote controller at indoor unit side * This method is effective only when ‡ of set switch SW01 on the network adapter P.C. board is turned off. Set the network address while the unit stops. 1 2 3 4 Push + buttons for 4 seconds or more. In the group control, the unit No RLL is displayed, and then all the indoor units in the group control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1) (Keep status of RLL display without pushing button.) For the individual remote controller which is not included in a group control, the line address and the indoor unit address are displayed. Specify the item code 03 using the temperature setup / buttons. Using the timer time / buttons, select the setup data. The setup data are shown in the right table (Table 1). Push SET button. (OK if display goes on) • To change the item to be set, return to 5 2. Push button. The status returns to the usual stop status. Fig. 1 SET DATA UNIT No. R.C. 1 No. 3 2 UNIT 5 SET CL 4 Table 1 Setup data Network address No. 0001 0002 0003 : 0064 1 2 3 : 64 0099 Unset (Setup at shipment from factory) 2. How to set by the switch on the network adapter P.C. board When the remote controller cannot be found or when you don’t want to change setting of the network address No. from the remote controller, use the setup switch SW01 on the network adapter P.C. board (Network address No. setup switch) to set the address No. Invalid address No. setup from remote controller No. setup switch (1) Turn off the power. (2) Turn ‡ of the address No. setup switch SW01 to ON side. Accordingly the address No. set on the remote controller is invalidated. (See Fig. 2.) (3) Set the network address No. with combination of ON and OFF of † to  of the address No. setup switch SW01. The relation between combination of ON/OFF and address No. is described in Table 2. The right figure (Fig. 3) shows an example of case that the address No. is set to 16. ON ON side OFF side 1 2 3 4 5 6 7 (Numeral side) Address No. setup SW01 Fig. 2 Setup example of address No. 16 ON When the network address No. has been changed, be sure to turn of power of the central control remote controller again or to reset the remote controller using the reset hole on the operation panel of the central control remote controller. – 100 – 1 2 3 4 5 6 7 Fig. 3 ON side OFF side (Numeral side) Table 2 Network address No. setup table (SW01) 〇 : ON side × : OFF side Address No. ① ② ③ ④ ⑤ ⑥ Address No. ① ② ③ ④ ⑤ ⑥ 01 × × × × × × 33 × × × × × 〇 02 〇 × × × × × 34 〇 × × × × 〇 03 × 〇 × × × × 35 × 〇 × × × 〇 04 〇 〇 × × × × 36 〇 〇 × × × 〇 05 × × 〇 × × × 37 × × 〇 × × 〇 06 〇 × 〇 × × × 38 〇 × 〇 × × 〇 07 × 〇 〇 × × × 39 × 〇 〇 × × 〇 08 〇 〇 〇 × × × 40 〇 〇 〇 × × 〇 09 × × × 〇 × × 41 × × × 〇 × 〇 10 〇 × × 〇 × × 42 〇 × × 〇 × 〇 11 × 〇 × 〇 × × 43 × 〇 × 〇 × 〇 12 〇 〇 × 〇 × × 44 〇 〇 × 〇 × 〇 13 × × 〇 〇 × × 45 × × 〇 〇 × 〇 14 〇 × 〇 〇 × × 46 〇 × 〇 〇 × 〇 15 × 〇 〇 〇 × × 47 × 〇 〇 〇 × 〇 16 〇 〇 〇 〇 × × 48 〇 〇 〇 〇 × 〇 17 × × × × 〇 × 49 × × × × 〇 〇 18 〇 × × × 〇 × 50 〇 × × × 〇 〇 19 × 〇 × × 〇 × 51 × 〇 × × 〇 〇 20 〇 〇 × × 〇 × 52 〇 〇 × × 〇 〇 21 × × 〇 × 〇 × 53 × × 〇 × 〇 〇 22 〇 × 〇 × 〇 × 54 〇 × 〇 × 〇 〇 23 × 〇 〇 × 〇 × 55 × 〇 〇 × 〇 〇 24 〇 〇 〇 × 〇 × 56 〇 〇 〇 × 〇 〇 25 × × × 〇 〇 × 57 × × × 〇 〇 〇 26 〇 × × 〇 〇 × 58 〇 × × 〇 〇 〇 27 × 〇 × 〇 〇 × 59 × 〇 × 〇 〇 〇 28 〇 〇 × 〇 〇 × 60 〇 〇 × 〇 〇 〇 29 × × 〇 〇 〇 × 61 × × 〇 〇 〇 〇 30 〇 × 〇 〇 〇 × 62 〇 × 〇 〇 〇 〇 31 × 〇 〇 〇 〇 × 63 × 〇 〇 〇 〇 〇 32 〇 〇 〇 〇 〇 × 64 〇 〇 〇 〇 〇 〇 Requirement in Service When using this product as service part to replace the network adapter P.C. board, be sure to match the setup of the setup switch SW01 (Network address No. setup switch) on the network adapter P.C. board with the P.C. board setup before replacement. – 101 – 12-4. Display and Operation of Main Remote Controller and Central Control Remote Controller 1. Turn on all the power supplies of the air conditioner, and then turn on power of the central control remote controller (Line 16 RBC-SXC1P, Line 64 TCB-SC641). If both power supplies are simultaneously turned on or if they are turned on reversely, the check code [97] may be temporarily displayed on the central remote controller. When settings of connecting cables and central control address are correct, the connected air conditioner is displayed on the central control remote controller. 2. As shown in the following table, there is difference of LCD between main remote controller (RBC-AMT21) and the central control remote controller and also there are restriction and others of operation. Contents Item 1 Air volume selection Cautions Main remote controller Central control remote controller [SPEED] [VOL] [AUTO] [HH] [H] [L] [SPEED] [AUTO] [H] [M] [L] [VOL] [FIX] In duct type Air speed becomes [H] and [FIX]. [VOL] [AUTO] [H] [M] [L] When handling main remote controller, [AUTO] is not displayed. If [AUTO] is selected at center side, [AUTO] is displayed on the main remote controller. In this time, the air speed becomes [HH]. [VOL] [AUTO] On the central remote controller, only [AUTO] is displayed. The display on the main remote controller changes to [AUTO] by changing the setup temperature/louver, and the air speed is automatically selected. [HH] 2 Display of air speed selection differs. Air speed selection in FAN mode [SPEED] 3 Air speed selection in DRY mode [SPEED] 4 Air direction adjustment [SWING] and air direction adjustment [LOUVER] On the central remote controller, only [LOUVER] is displayed. It is displayed while flap is swinging, and the setup operation of [LOUVER] becomes selection of swing ON/OFF. To set up the air direction, use the main remote controller. (No display) Manual operation for [LOUVER] In a model type without air direction adjustment [HH] [H] [L] [AUTO] [HH] [H] [L] 5 Check button Test run (4 seconds) Check code display and check reset (3 seconds) The function of long-pushing operation for the check button differs. If the check reset operation on the central remote controller is performed during operation of air conditioner, the operation stops once, and then the operation restarts. (Error of air conditioner is cleared.) 6 Check code 3-digits display (alphabet + 2-digits numeral) 2-digits display (alphabet or numeral) Display of check code differs. Ex. : Float switch operation Main side: [P10] Center side: [0b] 3. When using the remote controller together with the former one (RBC-AM1, AT1), the display on the main remote controller differs if [Last-push priority/Center/Operation Prohibited] is selected from the central control remote controller. Contents Item New remote controller (RBC-AMT21) Former remote controller (RBC-AM1, AT1) Remarks 1 Last-push priority (No display) (No display) All the settings and ON/OFF operations are available. 2 Center [CENTER] goes on [CENTER] goes on The setup contents on the central control remote controller are fixed, and only ON/OFF operation and timer setup operation are available on the main remote controller. 3 Operation prohibited [CENTER] flashes The setup contents on the central control remote controller are fixed, and the air conditioner stops. Operation from the main remote controller is unavailable. – 102 – 13. ADDRESS SETUP 13-1. Address Setup

When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit. The operation of the remote controller is not accepted while automatic address works. (Approx. 4 to 5 minutes) Setup of line address of outdoor unit, indoor unit address, and group address Completion of cabling work NO Do you arbitrarily set the indoor unit address? YES NO (MANUAL) Is refrigerant line 1 line? YES NO Is group control performed? YES (To AUTO address mode) Do you change setting after automatic setting at the first time? YES Connect one remote controller with one indoor unit (1 : 1) tentatively with communication cable. Turn on power of outdoor unit. Set to all indoor units one by one. Turn on power of outdoor unit. ( After completion of address setup, change is to arbitral address/group manually. ) ( Turn on power of outdoor unit. Setup of automatic address finishes within 4 to 5 minutes. ) END • When the following addresses are not stored in the neutral memory (IC10) on the indoor P.C. board, a test run operation cannot be performed. (Unfixed data at shipment from factory) Item code Data at shipment Setup data range Line address 12 0099 0001 (No. 1 unit) to 0030 (No. 30 unit) Indoor unit address 13 0099 0001 (No. 1 unit) to 0030 (No. 30 unit) Max. value of indoor units in the identical refrigerant line (Double twin = 4) Group address 14 0099 0000 : Individual (Indoor units which are not controlled in a group) 0001 : Master unit (1 indoor unit in group control) 0002 : Sub unit (Indoor units other than master unit in group control) – 103 – 13-2. Address Setup & Group Control Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64) Group address : 0 = Individual (Not group control) 1 = Master unit in group control 2 = Sub unit in group control Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from the remote controllers and sub indoor units. (* It has no relation with an indoor unit which communicates serially with the outdoor units.) The operation mode and setup temperature range are displayed on the remote controller LCD. (Except sir direction adjustment of flap) Sub unit (= 2) : Indoor units other than master unit in group operation Basically, sub units do not send/receive signals to/from the remote controllers. (Except errors and response to demand of service data) 13-2-1. System configuration 2. Single group operation 1. Single Outdoor Indoor 1-1 Individual (Master/Sub) 2-1 Sub 1-1 Sub 4-1 Master 3-1 Sub 8-1 Sub Remote controller 13-2-2. Automatic address example from unset address (No miscabling) 1. Standard (One outdoor unit) 1) Single 1-1 Individual (Master/Sub) 2) Gr operation (Multiple outdoor units = Miltiple indoor units only with serial communication) 2-1 Sub 1-1 Sub 4-1 Master 8-1 Sub Max. 8 units Only turning on source power supply (Automatic completion) – 104 – 13-3. Address Setup In case that addresses of the indoor units will be determined prior to piping work after cabling work (Manual setting from remote controller)

• Set an indoor unit per a remote controller. • Turn on power supply. 1 2 (← ← Line address) Using the temperature setup / buttons, set 12 to the item code. 3 4 5 6 7 8 9 (Example of 2-lines cabling) (Real line: Cabling, Broken line: Refrigerant pipe) Push SET + + buttons simultaneously for 4 seconds or more. Using timer time Push SET / OUT OUT IN IN buttons, set the line address. button. (OK when display goes on.) (← ← Indoor unit address) Using the temperature setup / buttons, set 13 to the item code. Using timer time Push SET / buttons, set 1 to the line address. button. (OK when display goes on.) Line address Indoor unit address Group address (← ← Group address) Using the temperature setup / buttons, set 14 to the item code. Using timer time / buttons, set 0000 to Individual, 0001 to Master unit, and 0002 to sub unit. 10 11 Push SET 1 1 1 2 1 2 For the above example, perform setting by connecting singly the wired remote controller without remote controller inter-unit cable. button. (OK when display goes on.) Group address Individual : 0000 Master unit : 0001 Sub unit : 0002 Push button. Setup completes. (The status returns to the usual stop status.) In case of group control SET DATA UNIT No. R.C. No. 3, 6, 9 END11 2, 5, 8 UNIT 1 SET CL 4, 7, 10 1 2 3 4 5 6 7 – 105 – 8 9 10 11 END n Confirmation of indoor unit No. position 1. To know the indoor unit addresses though position of the indoor unit body is recognized • In case of individual operation (Wired remote controller : indoor unit = 1 : 1) (Follow to the procedure during operation) 1 2 Push button if the unit stops. CODE No. UNIT No. Push button. Unit No. 1-1 is displayed on LCD. (It disappears after several seconds.) The displayed unit No. indicate line address and indoor unit address. (When other indoor units are connected to the identical remote controller (Group control unit), other unit numbers are also displayed every pushing button. 1 Operation UNIT SET CL 2 1 2 END 2. To know the position of indoor unit body by address • To confirm the unit No. in the group control (Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.) The indoor unit numbers in the group control are successively displayed, and fan, flap, and drain pump of the corresponding indoor unit are turned on. (Follow to the procedure during operation) 1 2 3 Push and buttons simultaneously for 4 seconds or more. • Unit No. ALL is displayed. • Fans and flaps of all the indoor units in the group control operate. Every pushing button, the unit numbers in the group control are successively displayed. • The unit No. displayed at the first time indicates the master unit address. • Fan and flap of the selected indoor unit only operate. Push button to finish the procedure. All the indoor units in the group control stop. – 106 – SET DATA UNIT No. R.C. No. 1 UNIT SET CL 3 1 2 3 END 2 RAV-SM800AT-E LED display when SW800 : Bit 1, 2, 3, 4 OFF • • • • When multiple errors are detected, the latest error is displayed. While LED displays 〇 (go on), there is the main cause of error in control at CDB side and it stops abnormally. While LED displays ◎ (flash), there is the main cause of error in control at IPDU side and it stops abnormally. For an error in case thermo operation, the communication is interrupted on the serial circuit. If continuing the case thermo operation, serial sending to the indoor unit is interrupted and a serial communication error is output. Table A Check code No. Item LED display B type D800 (Red) D801 D802 D803 (Yellow) (Yellow) (Yellow) 1 TE sensor error 18 〇 ● ● ● 2 TD sensor error 19 〇 〇 ● ● 3 TS sensor error 18 ● ● 〇 ● 4 TO sensor error 1B ● 〇 ● ● 5 Discharge temp error 1E ● 〇 〇 ● 6 Out DC fan error 1A 〇 〇 〇 ● 7 Communication error between IPDU (Abnormal stop) 1C 〇 ● ● 〇 8 High-pressure release operation ● 〇 ● 〇 CDB side 21 — 9 EEPROM error — 〇 〇 ● 〇 10 Communication error between IPDU (No abnormal stop) — ● ● 〇 〇 11 G-Tr short-circuit protection 14 ◎ ● ● ● 12 Detection circuit error 16 ● ◎ ● ● 13 Current sensor error 17 ◎ ◎ ● ● 14 Phase missing detection 17 ● ● ● ◎ 15 Comp lock error 1D ● ● ◎ ● 16 Comp breakdown 1F ◎ ● ◎ ● IPDU side 〇 : Go on, ● : Go off, ◎ : Flash (5 Hz) – 107 – 14. TROUBLESHOOTING 14-1. Summary of Troubleshooting 1. Before troubleshooting 1) Required tools/instruments • + and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check  The following operations are normal. a) Compressor does not operate. • Is not 3-minutes delay (3 minutes after compressor OFF)? • Does not thermostat turn off? • Does not timer operate during fan operation? • Is not detected an overflow error? • Is not outside high-temperature operation controlled in heating operation? b) Indoor fan does not rotate. • Does not cool air discharge preventive control work in heating operation? c) Outdoor fan does not rotate or air speed changes. • Does not high-temperature release operation control work in heating operation? • Does not outside low-temperature operation control work in cooling operation? • Is not defrost operation performed? d) ON/OFF operation cannot be performed from remote controller. • Is not during emergency operation? • Is not the control operation performed from outside/remote side? ‚ Did you return the cabling to the initial positions? ƒ Are connecting cables of indoor unit and remote controller correct? 2. Troubleshooting procedure When a trouble occurred, check the parts along with the following procedure. Trouble → Confirmation of check code display → Check defective position and parts. NOTE : For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller and the signal line to shield cables. – 108 – (a) Outline of Judgment A primary judgment to detect cause of error exists on the indoor unit or outdoor unit is performed in the following procedure. The indoor unit monitors operating status of the air conditioner, and if a protective circuit works, contents of the self-diagnosis are displayed with a block restricted to the following cases on the indoor unit display part. Remote controller code Block display Contents of self-diagnosis — Operation lamp display flashes. (1Hz) Power failure (In power ON) 00 Operation lamp display flashes. (5Hz) Indoor P.C. board 01 Operation/timer lamp displays flash. (5Hz) Inter-unit cables/transmission system 02 Operation/defrost lamp displays flash. (5Hz) Outdoor P.C. board 03 Operation/timer/defrost lamp displays flash. (5Hz) Cycle system, etc. — —— Check code —— 0b to 0F, 11, 12, b5, b6 04 14 to 19, 1A, 1C —— (b) Self-diagnosis by check code on the remote controller Refer to “Judgment of error mode by check code on the remote controller”. 1. Before troubleshooting 1) Required tools/instruments • + and – screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check  The following operations are normal. a) Compressor does not operate. • Is not 3-minutes delay (3 minutes after compressor OFF)? • Does not thermostat turn off? • Does not timer operate during fan operation? • Is not outside high-temperature operation controlled in heating operation? b) Indoor fan does not rotate. • Does not cool air discharge preventive control work in heating operation? c) Outdoor fan does not rotate or air volume changes. • Does not high-temperature release operation control work in heating operation? • Does not outside low-temperature operation control work in cooling operation? • Is not defrost operation performed? d) ON/OFF operation cannot be performed from remote controller. • Is not forced operation performed? • Is not the control operation performed from outside/remote side? ‚ Did you return the cabling to the initial positions? ƒ Are connecting cables between indoor unit and receiving unit correct? – 109 – 1d, 1E, 1F, 21 1b, 8b 2. Troubleshooting procedure When a trouble occurred, check the parts along with the following procedure. Trouble → Confirmation of check code by service mode → Check defective position and parts. NOTE : For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cable of the signal line to shield cable. (a) Outline of Judgment A primary judgment to detect cause of error exists on the indoor unit or outdoor unit is performed in the following procedure. The indoor unit monitors operating status of the air conditioner, and if a protective circuit works, contents of the self-diagnosis are displayed with a block restricted to the following cases on the indoor unit display part (Sensors). Remote controller code Block display Contents of self-diagnosis — Operation lamp display flashes. (1Hz) Power failure (In power ON) 00 Operation lamp display flashes. (5Hz) Indoor P.C. board 01 Operation/timer lamp displays flash. (5Hz) Inter-unit cables/transmission system 02 Operation/defrost lamp displays flash. (5Hz) Outdoor P.C. board 03 Operation/timer/defrost lamp displays flash. (5Hz) Cycle system, etc. — —— —— Check code —— 0b to 0F, 11, 12, b5, b6 04 14 to 19, 1A, 1C 1d, 1E, 1F, 21 1b, 8b (b) Self-diagnosis by check code on the remote controller In the wireless type models, the self-diagnosis for the protective circuit operation is performed by handling the remote controller. First change the operation mode of the remote controller, and then perform the selfdiagnosis by the displayed contents of the remote controller and the existence of operation lamp flashing (5Hz) and buzzer sound (Pi, Pi, Pi). During self-diagnosis operation, the timer lamp usually flashes (5Hz).  Selection of remote controller operation mode 1) Selection of service mode Push the select button at lower side of the wireless remote controller with a tip of pencil, etc. for approx. 3 seconds or more. In this time, check that [00] is displayed on the room temp. display part and other displays go off. 2) Selection of normal mode Push the reset button at lower side of the wireless remote controller with a tip of pencil, etc. In this time, check that [“AM”] display on the time display part flashes. ‚ Cautions in service 1) After service work, be sure to push the reset button to return the mode to normal mode. 2) After service by the check codes, turn off the power switch once and then turn on the switch to return the stored memory in microcomputer to the initial status. – 110 – (c) Self-diagnosis with remote controller With the indoor unit control, self-diagnosis of protective circuit action can be done by turning the remote controller operation into service mode, operating the remote controller, observing the remote controller indicators and checking whether TIMER lamp flashes (5 Hz). NOTE : • To perform this self-diagnosis, the remote controller with the service code of 43069666 is required. 1. Selecting service mode Push the switch button provided on rear bottom of the wireless remote control with a tip of pencil for more than 3 seconds. Make sure the setting temperature “ ” is displayed on the display and other display is turned off. 2. Selecting ordinary mode Push the all clear button (ACL) on the rear bottom of the wireless remote controller with a tip of pencil for more than 3 seconds. Make sure the operation mode display, wind volume display, clock display and setting temperature display are turned on and “ : ” of the clock display is flashing. 1. After completion of servicing, always push the all clear (ACL) button to return the operation mode to the normal mode. 2. After completion of servicing by the check code, turn off the power once and then turn on the power to reset memorized contents of the microcomputer to the initial status. All clear button Switch for selecting service mode ACL CLOCK ACL CLOCK Rear bottom cover (Rear bottom of remote control) – 111 –  1. The self-diagnosis by the check codes is conducted under the block displays. 2. Remote controller key operation under the service mode is conducted by ON/OFF or TEMP. The remote controller display by each key operation is varied as shown below. Two digit number is displayed in a hexadecimal number. 3. The self-diagnosis by the check codes is conducted with procedures shown below. 1) Enter the service mode and make sure the off timer display of the remote controller shows “ ” . 2) Operate the “ON/OFF” key and make sure the timer lamp on the display section is flashing (5 Hz). 3) At the same time, also make sure the operation lamp is also flashing. This shows that the protection circuit on the indoor P.C. board is working. key and make sure the remote controller display shows “ ” and flashing of the 4) Operate the TEMP. operation lamp. If the operation lamp is flashing, it shows the protection circuits for connecting cable is working or thermal fuse is blown. 5) In the same way, operate the TEMP. key so that the display is increased one by one to continue checks ” up to “ by the self-diagnosis as shown in the next table. From “ circuits for each block, and “ Operating key ” to “ ” check operations of protection ” check operations of the typical protection circuits. Indication after operation “ ” ON/OFF TEMP. (Up) 1 is added to data before operation. (Example) TEMP. (Down) 1 is subtracted from data before operation. (Example) “AUTO” LOUVER 10 is subtracted from data before operation. (Example) “SET” LOUVER Data before operation is directly transferred. (Example) – 112 – “ ” “ ” “ ” “ ” “ ” “ ” “ ” “ ” 14-2. Troubleshooting with CHECK Display of Remote Controller 14-2-1. In case of main remote controller/sub-remote controller A RBC-AM1E RBC-AS1E 1. Operation for CHECK display When pushing the CHECK switch, the indoor unit No. (Group address No.) which sends the check code is displayed at the right side of the set up TEMP. display section, and the check data of 2 errors/faults x 16 units is displayed in the set up temp. display section. If there is a filter display, the indoor unit No. which sends the filter signal is displayed at the right side of the set up temp. display section, and then the check code is displayed as described above. (1 display for 3 seconds) LCD display “STANDBY” is present. AN MODE FA TEMP P. F A N CHECK ADDRESS C O O L 12 • When phase-sequence of power wiring is incorrect H E AT AU TO FIX • When combination of indoor units is over capacity STANDBY UNIT STANDBY FILTER PREHEAT PREHEA DEFROST LOUVER CENTRAL MANUAL • Indoor unit with command excepted by operation mode select switch MODE • When there is an indoor unit which stopped with the indoor overflow alarm “0b”. FILTER CHECK • Indoor unit with cooling operation command excepted by heating priority control ON/OFF RESET switch Push the switch in the hole with pin. The remote controller resets the power supply. (All data is cleared.) CHECK switch Push for 0.5 seconds to display CHECK code. Push for 3 seconds to reset indoor microprocessor. (While indoor microprocessor is locked by ALL STOP alarm) Push for 10 seconds to clear check data. – 113 – 2. Reading of CHECK monitor display <7 segment display> Hexadecimal notation 1 0 2 3 4 5 6 7 8 9 10 11 12 13 14 Decimal notation 15 UNIT CHECK 12 FILTER FILTER sign Indoor unit No. CHECK code (Example) Case that Filter signal is sent from No.1 and No.16 units under group operation UNIT UNIT FILTER FILTER (Example) Room temp.sensor of No.1 is defective. In No.16, first the heat exchanger sensor has failed. Next, interconnection wire (serial signal line) of indoor/outdoor is defective. CHECK UNIT 1 CHECK UNIT 1 CHECK 2 (Example) There is no check data. CHECK – 114 – UNIT 14-2-2. Remote controller with timer RBC-AM1E 1. Operation for CHECK display When pushing the CHECK switch, the indoor unit No. (Group address No.) which sends the check code is displayed in the set up temp. display section, and check code is displayed in the TIME display section. If FILTER display (air filter cleaning sign) is present, the indoor unit No. which sends the filter signal is displayed in the set up temp. display section, and then the check code is displayed. (1 display for 3 seconds) LCD display STANDBY is present. • • • • • When phase-sequence of power wiring is incorrect When combination of indoor units is over capacity. Indoor unit with command excepted by operation mode select switch When there is an indoor unit which stopped with the indoor overflow alarm “0b”. Indoor unit with cooling operation command excepted by heating priority control MODE FAN FAN ONLY COOL AUTO HIGH MED LOW FIX HEAT REMOTE CONTROLLER PREHEAT DEFROST OPERATION STANDBY FILTER MODE TEMP CHECK LOUVER UNIT DEMAND MANUAL C F TIMER TIMER CHECK AFTER ADJUST CONT.OFF ON ADDRESS H FILTER M ON/OFF (This display is for remote control with timer.) CHECK switch RESET switch Push for 0.5 seconds to display CHECK code. Push for 3 seconds to reset indoor microprocessor. (While indoor microprocessor is locked by ALL STOP alarm) Push for 10 seconds to clear check data. – 115 – Push the switch in the hole with pin. The remote controller resets initialized. (All data is cleared.) 2. Reading of CHECK monitor display <7 segment display> Hexadecimal notation 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Decimal notation (Example) Filter signal is sent from No.1 and No.15 units under grouping operation FILTER FILTER CHECK CHECK UNIT UNIT CHECK UNIT Unit No. Check code detected at first Check code detected at last (Example) Room temp.sensor of No.1 is defective. In No.15, first the indoor heat exchanger sensor has failed. Next, interconnection wire (bus communication line) of indoor/outdoor is defective. CHECK CHECK UNIT UNIT After 3 seconds – 116 – (Example) There is no check data. CHECK 14-2-3. Central remote controller 1. Operation for CHECK display When pushing the CHECK switch, the indoor unit No. (Network address No.) including the check data is displayed in the UNIT No. display section, and the check code is displayed in the set up temp. display section. CHECK switch ON MONITOR ZONE SET ALL ON OFF UNIT CENTER LOCKED MODE FAN ONLY COOL DRY HEAT AUTO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 MONITOR/SET ALL/ZONE ZONE UNIT ZONE SET/ENTER SELECT ON CENTER/LOCKED MODE OFF TIMER ON Push for 0.5 seconds to display CHECK code. Push for 3 seconds to reset indoor microprocessor. (While indoor microprocessor is locked by ALL STOP alarm) Push for 10 seconds to clear check data. AUX. TYPE STANDBY TIMER No. FILTER FAN TEMP. CHECK AUTO 1 C HIGH 2 MED. LOW LOUVER FIX MANUAL TEMP. FILTER RESET CHECK FAN RESET switch LOUVER Push the switch in the hole with pin. The remote controller resets initialized. (All data is cleared.) 2. Reading of CHECK monitor display <7 segment display> Hexadecimal notation 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Decimal notation Unit line No. (Network address No.) MONITOR ZONE SET ALL UNIT ON OFF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 CENTER LOCKED MODE FAN ONLY COOL DRY HEAT AUTO AUX. TYPE STANDBY TIMER No. FILTER FAN TEMP. CHECK AUTO 1 C HIGH 2 MED. LOW LOUVER FIX MANUAL (Example) There is no check data. Check code detected at first Check code detected at last UNIT TEMP. CHECK (Example) In No.1 unit, first the interconnection wire (bus communication line) of indoor/outdoor has failed. Next, the room temp. sensor is defective. For No.16 unit, the high pressure switch at the inverter unit side operates. UNIT UNIT UNIT TEMP. CHECK 1 TEMP. CHECK 2 – 117 – TEMP. CHECK 1 14-3. Check Code Table Error mode detected by indoor unit (1) Operation of diagnostic function Block display Check code [MODE] [TIMER] lamp 5Hz flash Cause of operation Status of air conditioner The serial signal is not output Operation from outdoor unit to indoor unit. continues • Miscabling of inter-unit cables Judgment and measures Condition Displayed when 1. Outdoor unit does not completely error is detected operate. • Inter-unit cable check, correction of miscabling • Defective serial sending circuit on outdoor P.C. board • Outdoor P.C. board check, P.C. board cables check • Defective serial receiving circuit on outdoor P.C. board • Compressor case thermo check • Compressor case thermo operation 2. In normal operation When outdoor sending serial LED (Green) flashes, the receiving serial LED (Orange) also flashes. : Indoor P.C. board (Main P.C. board) check When the receiving serial LED (Orange) does not flash: Outdoor P.C. board check BUS communication circuit error Operation Displayed when 1. Communication line check, miscabling continues error is detected check * BUS communication was Power supply check for central interrupted over the specified (According to remote controller (Central control remote time. controller of controller, etc.) and indoor unit indoor unit) 2. Communication check (XY terminal) 3. Indoor P.C. board check 4. Central controller check (Communication P.C. board) Network address miss-setting • Addresses of central controllers (Central control remote controller, etc.) are duplicated. Operation continues 2. Indoor P.C. board check 3. Central controller check (Communication P.C. board) Error in 4-way valve system Operation continues • Indoor heat exchanger temperature rise after start of cooling operation. • Indoor heat exchanger temperature fall after start of heating operation. Error in other cycles • Indoor heat exchanger temp (TC) does not vary after start of cooling/heating operation. Displayed when 1. Check central control system network error is detected address setting. (SW02) Displayed when 1. Check 4-way valve. error is detected 2. Check 2-way valve and non-return valve. 3. Check indoor heat exchanger sensor (TC). 4. Check indoor P.C. board (Main P.C. board). Operation continues Displayed when 1. Compressor case thermo operation error is detected 2. Coming-off of detection part of indoor heat exchanger sensor 3. Check indoor heat exchanger sensor (TC). * 4. Check indoor P.C. board (Main P.C. board). [MODE] lamp 5Hz flash Coming-off, disconnection or short of indoor temp sensor (TA) Operation continues Displayed when 1. Check indoor temp sensor (TA). error is detected 2. Check indoor P.C. board (Main P.C. board). Coming-off, disconnection or short of indoor temp sensor (TC) Operation continues Displayed when 1. Check indoor temp sensor (TC). error is detected 2. Check indoor P.C. board (Main P.C. board). Coming-off, disconnection or short of indoor temp sensor (TCJ) Operation continues Displayed when 1. Check indoor temp sensor (TCJ). error is detected 2. Check indoor P.C. board (Main P.C. board). * : No display in the setting at shipment – 118 – Error mode detected by indoor unit (1) Operation of diagnostic function Block display Check code [MODE] lamp 5Hz flash Cause of operation Error in indoor fan system Status of air conditioner All stop Revolutions frequency error of fan Judgment and measures Condition Displayed when 1. Check indoor fan motor connector error is detected circuit (CN210). 2. Check indoor fan. 3. Check indoor P.C. board (Main P.C. board). Error in indoor unit or other positions Operation continues Displayed when 1. Check indoor P.C. board error is detected (EEPROM and peripheral circuits) (Main P.C. board). Operation continues Displayed when 1. Check outside devices. error is detected 2. Check indoor P.C. board (Main P.C. board). All stop Displayed when error is detected 1. EEPROM access error Outside error input Detected by input voltage level from outside devices Outside interlock input Detected by input voltage level from outside devices Error mode detected by indoor unit (2) Operation of diagnostic function Check code Cause of operation Serial return signal is not sent from No. 1 indoor unit to remote controller. Status of air conditioner ON/OFF Judgment and measures Condition Displayed when 1. Indoor unit does not completely operate. error is detected • Check inter-unit cable. • Check indoor P.C. board. (Main/Sub P.C. boards) • Miscabling of inter-unit cable between remote controller and indoor unit • Check remote controller. 2. In normal operation • Miss-setting of indoor unit No. (Group address) • Check setting of indoor unit No. (SW01) (Sub P.C. board) • Check remote controller. – 119 – Error mode detected by outdoor unit Operation of diagnostic function Check code Cause of operation Inverter over-current protective circuit operates. (For a short time) Status of air conditioner All stop Judgment and measures Condition Displayed when 1. Inverter immediately stops even if restarted. error is detected • Compressor rare short 2. Check IPDU. • Cabling error Error on current detection circuit All stop Displayed when 1. Compressor immediately stops even if restarted. error is detected : Check IPDU. • Current value is high at AC side even while compressor stops. 2. Phase-missing operation of power supply • Check power voltage of R, S, T. • Phase of power supply is missed. Coming-off, disconnection or short of outdoor temp sensor All stop Displayed when 1. Check outdoor temp sensor (TE, TS). error is detected 2. Check CDB. Coming-off, disconnection or short of outdoor temp sensor All stop Displayed when 1. Check outdoor temp sensor (TD). error is detected 2. Check CDB. Compressor drive output error All stop Displayed when 1. Abnormal overload operation of refrigerating cycle error is detected 2. Loosening of screws and contact error of IPDU and heat sink • Tin thermistor temp, Tin error (IPDU heat sink temp. is high.) 3. Cooling error of heat sink Communication error between IPDU 4. Check cabling of CDB and IPDU. • Connector coming-off between CDB and IPDU Compressor does not rotate. All stop (Over-current protective circuit works when constant time passed after activation of compressor.) Discharge temp error 2. Cabling trouble of compressor (Phase missing) All stop • Discharge temp over specified value was detected. Compressor breakdown Displayed when 1. Check refrigerating cycle. (Gas leak) error is detected 2. Error of electron control valve 3. Check pipe sensor (TD). All stop • Operation frequency lowered and stops though operation had started. High-voltage protection error by TE sensor Displayed when 1. Compressor error (Compressor lock, etc.) error is detected : Replace compressor. Displayed when 1. Check power voltage. (AC200V±20V) error is detected 2. Overload operation of refrigerating cycle 3. Check current detection circuit at AC side. All stop Displayed when error is detected • TE temp over specified value was detected. DC outdoor fan motor error 1. Overload operation of refrigerating cycle 2. Check outdoor temp sensor (TE). All stop • IDC operation or lock was detected by DC outdoor fan driving. Displayed when 1. Position detection error error is detected 2. Over-current protection circuit operation of outdoor fan drive unit • Check CDB. • Refer to Judgment of outdoor fan. Error on IPDU position detection circuit All stop Displayed when 1. Position detection circuit operates even if driving by error is detected removing 3P connector of compressor. • Replace IPDU. Coming-off, disconnection or short of outdoor temp sensor Operation continues Displayed when 1. Check outdoor temp sensor (TO). error is detected 2. Check P.C. board. – 120 – 14-4. Troubleshooting for Each Check Code [1A error] Are connections of CN301 and CN300 of CDB correct? YES Does the fan rotate without trouble when handling the fan with hands under condition of removing CN301 and CN300 from CDB? CN301 NO YES The status that the resistance values between leads below are 50 to 80 for 40W motor (ICF-140-43) and 25 to 55 for 60W motor (ICF-140-63-1) is normal. Between 1 (Red lead) and 2 (White lead) Between 2 (White lead) and 3 (Black lead) Between 3 (Black lead) and 1 (Red lead) of motor winding of connector (CN301) NO CN300 YES The status that there is 5k to 20k resistance values between 1 (Yellow lead) and 4 (Pink lead) of motor position detection of connector (CN300, CN302) is normal. • For RAV-SM560AT-E, CN300 changes to CN301, and CN301 to CN300, respectively. NO YES Normal fan motor Defective fan motor (CDB error) NOTE : However, GND circuit error inside of the motor is rarely detected even if the above check is carried out. When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor. RAV-SM560AT-E RAV-SM800AT-E Control P.C. board CDB P.C. board Fan motor winding CN300 CN301 Motor position detection CN301 CN300 Objective P.C. board – 121 – [04 error] NO Does outdoor unit operate? YES Are 1, 2, 3 inter-unit cables normal? NO Correct inter-unit cable. YES Are connections of connectors normal? NO Correct connection of connector. YES Is DC310 to 340V applied between terminals of electrolytic capacitor of IPDU main circuit? NO * For RAV-SM560AT-E, replace control P.C. board. YES * For RAV-SM560AT-E, check case thermo. Is DC310 to 340V power supplied to CDB? (CN03) Replace IPDU. NO Replace IPDU. YES Is case thermo (CN500) connected? NO Correct connection of connector. NO Check CDB. Defect Replace YES Does case thermo operate? YES NO * For RAV-SM560AT-E, replace control P.C. board. Does LED (D05) (Orange) on indoor main P.C. board flash? YES Check CDB. Defect Replace * For RAV-SM560AT-E, replace control P.C. board. Check/Correct charged refrigerant amount. * For RAV-SM560AT-E, replace control P.C. board. Check main indoor main P.C. board (MCC-1370A). Defect Replace – 122 – [08 error] Is operation of 4-way valve normal? NO Is 200V applied to 4-way valve coil terminal in heating operation? YES YES NO Is flow of refrigerant by 2-way valve, check valve, or electron expansion valve normal? NO Check 4-way valve. YES Check and replace 2-way valve, check valve, or electron expansion valve. NO Is circuit cable normal? YES Check and correct circuit. Are characteristics of TC sensor resistance value normal? NO * For RAV-SM560AT-E, check control P.C. board. * Refer to Characteristics-2. YES NO Check CDB P.C. board. Replace TC sensor. YES Check indoor main P.C. board (MCC-1370A) and sub P.C. board (MCC-1370B). Replace Defect Check CDB P.C. board. Defect Replace * For RAV-SM560AT-E, replace control P.C. board. • In cooling operation, if high pressure is abnormally raised, [08 error] may be displayed. In this case, remove cause of pressure up and then check again referring to the item [21 error]. [0C error] Is connection of TA sensor connector (Indoor main P.C. board CN04) normal? NO Correct connection of connector. YES Are characteristics of TA sensor resistance value normal? YES NO Replace TA sensor. * Refer to Characteristics-1. Check indoor P.C. board (MCC-1370A). Defect Replace – 123 – [0d error] Is connection of TC sensor connector (Indoor P.C. board CN05) normal? NO Correct connection of connector. YES Are characteristics of TC sensor resistance value normal? YES NO Replace TC sensor. * Refer to Characteristics-2. Check indoor P.C. board (MCC-1370A). Replace Defect [0F error] Is connection of TCJ sensor connector (Indoor P.C. board CN20) normal? NO Correct connection of connector. YES Are characteristics of TCJ sensor resistance value normal? YES NO Replace TCJ sensor. * Refer to Characteristics-2. Check indoor P.C. board (MCC-1370A). Replace Defect – 124 – [99 error] NO Is inter-unit cable of A, B and C normal? Correct inter-unit cable of remote controller. YES Is there no disconnection or contact error of connector? YES Correct connection of connector. Check circuit cables. NO YES Is individual (1 : 1) operation? NO NO Set the unit to No.1. Is unit set to No.1? YES Are not No.1 unit duplicated? NO YES NO Does indoor unit operate? YES Does LED (Green) on indoor main P.C. board flash? (D13) YES NO Avoid duplication of unit No.1 setting. Check remote controller P.C. board. Defect Replace – 125 – Check indoor main P.C. board (MCC-1370A). Defect Replace [11 error] Turn off the breaker once. Turn on the breaker after approx. 10 seconds. Does fan stop when operation stopped? NO YES Is DC1V or more voltage applied between 5 + and 3 – of the motor connector (CN210)? NO Replace indoor fan motor. YES Start the operation with cooling mode [L (Low)]. NO Does the fan rotate? YES Is DC280V or more voltage applied between 1 + and 3 – of the motor connector (CN210)? Replace indoor main P.C. board (MCC-1370A). NO YES (Connection status of motor) Is DC15V or more voltage applied between 4 + and 3 – of the motor connector (CN210)? NO YES Stop the operation and turn off the breaker. After removing motor connector, turn on the breaker again and then stop the operation from remote controller. Change the cooling mode to [H (High)]. Is DC15V voltage applied between 4 + and 3 – of the motor connector (CN210)? NO Replace indoor main P.C. board (MCC-1370A). YES Is DC1V or more voltage applied between 5 + and 3 – of the motor connector (CN210) when changing the operation mode (except HEAT)? (Check within approx. 15 seconds after operation has started.) NO YES NO Is fan speed raised? YES Normal fan motor NO Stop the operation and disconnect the receptacle. After removing motor connector, connect receptacle again and then stop the operation from remote controller. Is DC1V or more voltage applied between 5 + and 3 – of the motor connector (CN210) when changing the operation mode (except HEAT)? (Check within approx. 15 seconds after operation has started.) YES Replace indoor fan motor. NO Does the cross flow fan rotate normally when handled with hands? YES Does 0 to 5V voltage (revolutions return signal) generate between 6 + and 3 – of the motor connector (CN210) when rotating the cross flow fan with hands under condition of operation-stop? NO Replace indoor main P.C. board (MCC-1370A). YES Repair bering of the cross flow fan. Replace indoor fan motor. – 126 – [11 error] Indoor fan starts rotating by inserting receptacle. P.C. board CN210 [Check output voltage (DC) of P.C. board fan motor.] 6 (Blue) Yellow Measure the voltages of the motor connector CN210 Pin 3 (GND (minus): Black) and Pin 5 (V line (plus): Yellow) under condition that indoor fan rotates. 5 (Yellow) 4 (White) Black 3 (Black) 2 – 1 (Red) DC1.0V or more DC1.0V or less DC Defective indoor main P.C. board (MCC-1370A) Defective indoor fan motor [12 error] NO Check power voltage. Improve line. Check and eliminate noise, etc. Is there no turbulence of power supply? YES Check indoor main P.C. board (MCC-1370A). Defect Replace – 127 – [14 error] NO Improve the power supply line. Is power voltage normal? YES Are connections of cabling/connector normal? Check and correct circuit cables. Correct connection of connector. Check and correct reactor connection. NO YES * For RAV-SM560AT-E, check RY01 on the control P.C. board. Does RY01 relay of IPDU operate? YES Is not “14” errors output when an operation is performed by removing 3P connector of compressor? NO NO YES * Single-phase type is not provided to RAV-SM560AT-E. Replace IPDU. YES Is not AC fuse fused? * Replace control P.C. board of RAV-SM560AT-E. NO Replace IPDU. NO Is compressor normal? * Replace control P.C. board of RAV-SM560AT-E. YES Check IPDU. Defect Replace Check rare short of compressor trouble. Defect Replace [16 error] Are connections of cable/connector normal? NO Check and correct circuit cabling such as cabling to compressor. YES NO Is compressor normal? YES YES Is not earthed? Compressor error Replace Compressor error Replace Compressor error Replace NO Is not winding shorted? (Is resistance between windings 0.6 to 1.2 ?) YES NO YES Is not winding opened? NO Check IPDU P.C. board. Defect Replace – 128 – [18 error] Are connections of TE/TS sensor connectors of CDB CN604/CN605 normal? NO YES Correct connection of connector. * (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor) NO Are characteristics of TE/TS sensor resistance values normal? Replace TE and TS sensors. * Refer to Characteristics-3. YES Check CDB. Replace Defect * For RAV-SM560AT-E, replace the control P.C. board [19 error] NO Is connection of TD sensor connector of CDB CN600 normal? YES Correct connection of connector. * For RAV-SM560AT-E, CN601 on control P.C. board NO Are characteristics of TD sensor resistance value normal? Replace TD sensor. YES Check control P.C. board. Replace Defect * Refer to Characteristics-4. [1C error] * Except RAV-SM560AT-E Are connections of CDB CN800 and CDB IPDU CN06 connectors normal? NO Correct connection of connector. YES Was the error just after power ON determined? YES NO Are cabling/connector normal? Check cabling between IPDU and CDB and connector. YES NO IPDU P.C. board error Defect Replace YES Improve and eliminate the cause. Is there no abnormal overload? NO Is IPDU P.C. board come to closely contact with heat sink? NO Correct mounting. YES IPDU P.C. board error Defect Replace – 129 – [1d error] NO Improve power line. Is power voltage normal? YES Are connections of cable/connector normal? Check and correct circuit cabling such as cabling to compressor (phase missing) and connector. NO YES NO Is there no slackened refrigerant? Is compressor normal? YES NO Compressor lock Replace YES Does electron expansion valve normally operate? NO Check TE and TS sensors. Replace Check electron expansion valve. Replace YES Check IPDU and CDB. Replace Defect * For RAV-SM560AT-E, check control P.C. board. Replace Defect [1E error] Is protective control such as discharge temprelease control normal? NO Are connections of cable/connector normal? YES NO Correct the cabling and connection of connector. YES Check parts. Defect NO Replace Check and correct the charged refrigerant amount. Is charged refrigerant amount normal? YES YES Improve and delete the cause Is not abnormal overload? NO Are characteristics of TD sensor resistance value normal? YES NO Replace TD sensor. * Refer to Characteristics-4. Check CDB. Replace Defect * For RAV-SM560AT-E, check control P.C. board. [1F error] Is power voltage normal? NO Improve power line. YES YES Improve and delete the cause. Is not abnormal overload? NO Is the circuit detected by current sensor normal? NO Check and correct circuit cables. YES Check IPDU. Defect Replace * For RAV-SM560AT-E, check control P.C. board. – 130 – [21 error] [ ] LCD flash Is high-voltage protective operation by TE sensor normal? NO YES NO Is connection of cabling connector normal? Correct connection of cabling connector. YES Check TE sensor. Defect Replace Does cooling outdoor fan normally operate? NO YES NO Is connection of connector normal? Correct connection of connector. YES NO Is fan motor normal? Replace fan motor. YES NO Does electron control valve normally operate? YES Do not TD and TO sensors come off the detection part? Correct coming-off. NO Check TE, TC, TS sensors. Replace electron expansion valve. Are characteristics of TD, TO, TC sensor resistance values normal? YES Check charged refrigerant amount. Check liquid/gas valves. Check abnormal overload. YES NO * Refer to Characteristics-3 and 4. Check CDB. Defect Replace * For RAV-SM560AT-E, check control P.C. board. – 131 – Replace TD, TO, and TC sensors. 14-5. Simple Check Method for Main Parts 14-5-1. Indoor unit 1 Part name Check procedure Temperature sensor (Ta) Measure the resistance value with tester by removing the connector. Heat exchanger sensor (Tc) (Normal temperature) Heat exchanger sensor (Tcj) Normal value 2 Louver motor MP35EA12 Indoor fan motor (ICF-340-30-1) Refer to Characteristics table. Measure the resistance value of each winding coil with tester. (Under normal temperature 25°C) Brown Red Orange Yellow Pink Blue 3 10 kΩ to 20 kΩ 1 2 3 4 5 6 Position 1 2 3 4 5 6 Between Between Between Between 1 1 1 1 and and and and Resistance value 2 3 4 5 130 ± 40Ω lMeasure the resistance value of each winding coil with tester. lFor P.C. board side, proceed to [11 error] of “Troubleshooting procedure for each check code”. Position Between ƒ (Black) and Between ∞ (MΩ)  (Red) ƒ (Black) and „ (White) Between ƒ (Black) and Between Resistance value 27 to 47 kΩ … (Yellow) 140 to 280 kΩ ∞ (MΩ) ƒ (Black) and † (Blue) Red 1 1 Black White Yellow Blue – 132 – 3 4 5 6 3 4 5 6 1 1 2 3 3 4 4 5 5 6 6 Circuit No. Relational graph of temperature sensor resistance value and temperature 20 40 TA sensor TC, TCJ sensor 30 Caracteristics-2 Caracteristics-1 Resistance (k ) Resistance (k ) 10 20 10 0 10 20 30 40 0 –10 50 0 10 Temperature [ C] 20 30 40 50 60 70 Temperature [ C] 20 200 TE, TO, TS sensor Caracteristics-3 Resistance (k ) (10 C or higher) Resistance (k ) (10 C or lower) 10 100 0 0 -10 0 10 20 30 40 50 60 70 Temperature [ C] TD sensor 200 20 Caracteristics-4 Resistance (k ) (50 C or higher) Resistance (k ) (50 C or lower) 10 100 0 0 50 100 Temperature [ C] – 133 – Resistance (K ) (10 C or higher) 20 Resistance (K ) 200 TH sensor Caracteristics-5 150 15 100 10 50 5 –30 –20 –10 0 10 20 30 40 Temperature [ºC] – 134 – 50 60 70 80 90 100 15. DETACHMENTS 15-1. Indoor Unit RAV-SM560UT-E, SM800UT-E No. Part name Q Suction grille Remarks Procedure REQUIREMENT Never forget to put on the gloves at disassembling work, otherwise an injury will be caused. Knob of suction grille 1. Detachment 1) Stop operation of the air conditioner, and then turn off switch of the breaker. 2) Hang down the suction grille while sliding two knobs of the suction grille inward. 3) Remove a strap connecting the panel and the suction grille to remove the suction grille. 2. Attachment 1) Hang the suction grille to the panel. 2) Attach the strap of the suction grille to the panel as before. 3) Close the suction grille, slide the knobs outward, and then fix it. R Electric parts cover 1. Detachment 1) Perform work of item 1. of Q. 2) Remove screws fixing the electric parts cover. (Ø4 x 10, 3 pcs.) 3) Remove the electric parts cover from the tentative hook, and then open the cover. Remove the strap. 3 screws 2. Attachment 1) Close the electric parts cover and hang the cover hole to the tentative hook. 2) Tighten the fixing screws. (Ø4 x 10, 3 pcs.) Tentative hook – 135 – No. Part name S Adjust corner cap Procedure 1. Detachment 1) Perform work of item 1. of Q. 2) Remove screws at 4 corners of the suction port. (Ø4 x 10, 4 pcs.) 3) Push the knob outward and remove the adjust corner cap by sliding it. Remarks Screw 2. Attachment 1) Mount the adjust corner cap by sliding it inward. 2) Tighten screws at 4 corners of the suction port. (Ø4 x 10, 4 pcs.) Push outward T Ceiling panel 1. Detachment 1) Perform works of items 1 of Q, 1 of R and 1 of S. 2) Remove the flap connector (CN33, White, 5P) connected to the control P.C. board, and then remove the lead wire from the clamp. Remove the flap connector NOTE : Remove the connector by releasing locking of the housing. 3) Remove screws fixing the ceiling panel. (M5, 4 pcs.) 4) Push the tentative hook outward to remove the ceiling panel. Fixing screw 2. Attachment 1) Hang the tentative hook of the main body drain pan to the tentative hook of the ceiling panel. NOTE : A panel has directional property, so mount a panel with attention to the marks. 2) Tighten fixing screws. (M5, 4 pcs.) 3) Connect flap connector of the ceiling panel to connector (CN33, White, 5P) on the control P.C. board. – 136 – Push the tentative hook outward No. Part name U Control P.C. board Procedure 1. Detachment 1) Perform works of items 1 of Q and 1 of R. 2) Remove connectors which are connected from the control P.C. board to other parts. CN33 : Flap motor (5P: White) CN34 : Float switch (3P: Red) CN41 : Terminal block of remote controller (3P: Blue) CN68 : Drain pump (3P: Blue) CN67 : Terminal block of power supply (5P: Black) CN101 : TC sensor (2P: Black) CN102 : TCJ sensor (2P: Red) CN104 : Room temperature sensor (2P: Yellow) CN333 : Power supply of fan motor (5P: White) CN334 : Position detection of fan motor (5P: White) NOTE : Remove the connector by releasing locking of the housing. 3) Unlock locking of the card-edge spacer at 6 positions to remove the control P.C. board. 2. Attachment 1) Fix the control P.C. board to the cardedge spacer at 6 positions. 2) Connect the connectors removed in item 1 to the original positions. – 137 – Remarks Card-edge spacer No. Part name V Fan motor Procedure Remarks 1. Detachment 1) Perform works of items 1 of Q and 1 of R. 2) Remove clamps of the lead wires connected to the following connectors of the control P.C. board. CN33 : Flap motor (5P: White) CN34 : Float switch (3P: Red) CN68 : Drain pump (3P: Blue) CN101 : TC sensor (2P: Black) CN102 : TCJ sensor (2P: Red) CN333 : Power supply of fan motor (5P: White) CN334 : Position detection of fan motor (5P: White) Screws fixing electric parts box Screws fixing earth lead wires Bell mouth NOTE : Remove the connector by releasing locking of the housing. 3) Remove screws fixing earth lead wire in the electric parts box. (Ø4 x 6, 2 pcs.) 4) Remove indoor/outdoor inter-unit cable and remote controller cable of the terminal block. 5) Remove screws fixing the electric parts box. (Ø4 x 10, 5 pcs.) 6) Remove screws fixing the bell mouth. (Ø4 x 10, 6 pcs.) 7) Remove nuts fixing the turbo fan. (M6, 1 pc.) 8) Remove screws fixing holder of the motor lead wires to remove the motor lead wires from the clamp. (Ø4 x 8, 3 pcs.) 9) Remove nuts fixing the fan motor to remove it. Turbo fan Motor lead holder 2. Attachment 1) Fix the parts, fan motor, holder of the motor lead, turbo fan, bell mouth, and electric parts box successively to their original positions. NOTE 1 : When fixing the turbo fan, be sure to match the fan boss with D-cut of the motor shaft. NOTE 2 : Fix the turbo fan with torque wrench 5.9 ± 0.6Nm. 2) Connect connectors, earth lead wire, indoor/outdoor inter-unit cable, and remote controller cable which have been disconnected in the above item 1 as before. – 138 – Fan motor No. Part name W Drain pan Remarks Procedure 1. Detachment 1) Perform works of items 1 of Q, 1 of R, 1 of S and 1 of T. 2) Remove clamps of the lead wires connected to the following connectors of the control P.C. board. CN34 : Float switch (3P: Red) CN68 : Drain pump (3P: Blue) CN101 : TC sensor (2P: Black) CN102 : TCJ sensor (2P: Red) CN333 : Power supply of fan motor (5P: White) CN334 : Position detection of fan motor (5P: White) Screws fixing earth lead wires Drain cap NOTE : Remove the connector by releasing locking of the housing. 3) Remove screws fixing earth lead wire in the electric parts box. (Ø4 x 6, 2 pcs.) 4) Remove indoor/outdoor inter-unit cable and remote controller cable of the terminal block. 5) Remove screws fixing the electric parts box. (Ø4 x 10, 5 pcs.) 6) Remove screws fixing the bell mouth. (Ø4 x 10, 6 pcs.) 7) Remove the drain cap, and drain water accumulated in the drain pan. NOTE 1 : When removing the drain cap, be sure to prepare a bucket to catch the drained water. NOTE 2 : Thermal insulator is adhered to the drain cap. Be careful not to peel off the insulator. If the insulator has been peeled, adhere it with double-face tape, etc. as before. 8) Remove screws fixing the drain pan. (Ø4 x 8, 4 pcs.) 2. Attachment 1) Fix the parts, drain cap, drain pan, bell mouth, and electric parts box successively to their original positions. 2) Connect connectors, earth lead wire, indoor/outdoor inter-unit cable, and remote controller cable which have been disconnected in the above item 1 as before. – 139 – Screws fixing drain pan No. Part name X Drain pump assembly Procedure 1. Detachment 1) Perform works of items 1 of Q, 1 of R, 1 of S, 1 of T and 1 of W. 2) Picking the hose band, slide it from pump connecting part to remove the drain hose. 3) Remove screw fixing the drain pump assembly, slide hooking claws of the drain pump assembly and the main body (1 position), and then remove the assembly. (Ø4 x 8, 3 pcs.) Remarks Slide to hose side. Hose band 3. Attachment 1) Fix the drain pump assembly as before. Pump connecting part NOTE : The drain pump is fixed with a hook and 3 screws. In screwing, be sure that screws do not to run on hooking claw at the main body side. 2) Attach the drain hose and hose band as before. NOTE : Insert the drain hose up to the end of pump connecting part, and bind the white mark position of the hose with band. Hooking claw Fixing screw – 140 – No. Procedure Part name Remarks Y Heat exchanger 1. Detachment 1) Recover refrigerant gas. 2) Remove refrigerant pipe at the indoor unit side. 3) Perform works of items 1 of Q, 1 of R, 1 of S, 1 of T and 1 of W. 4) Remove screws fixing the pipe cover. (Ø4 x 8, 2 pcs.) 5) Remove the heat exchanger by removing fixing band and fixing screws while holding the heat exchanger. (Ø4 x 8, 3 pcs.) 2. Attachment 1) Fix the parts, heat exchanger, fixing band, pipe cover, drain cap, drain pan, bell mouth, and electric parts box successively to their original positions. 2) Connect connectors, earth lead wire, indoor/outdoor inter-unit cable, and remote controller cable which have been disconnected in the above item 1 as before. 3) Connect the refrigerant pipe as before, and then perform vacuuming. Fixing screws Fixing band Fixing screws – 141 – 15-2. Replacement of Distributor Assembly RAV-SM560UT-E 1. Cutting of Capillary Tube A capillary tube ( 023 : Inner diameter 2mm, Length 1000mm) is brazed to a distributor assembly. Cut and divide the tube to each length as shown below. Ref No. No. of capillary tubes Cutting 023 4 200 mm : 2 pcs. 400 mm : 2 pcs. [Cutting] Plane circumference of the capillary tube with triangle file, etc., and then break off it. NOTE) Break off the capillary tube so that inner diameter is not deformed 2. Attachment of joint pipe Insert the attached joint pipe into the end of the capillary tube up to 15mm, and braze it. Form the capillary tube as same as that in the distributor assembly before replacement. 3. Brazing to indoor heat exchanger Attach the capillary tube processed in items 1 and 2 to the end of the pipe with brazing as shown below. 023 – 142 – RAV-SM800UT-E 1. Cutting of Capillary Tube A capillary tube ( 025 026 : Inner diameter 2mm, Length 1000mm) is brazed to a distributor assembly. Cut and divide the tube to each length as shown below. Ref No. No. of capillary tubes 025 7 100 mm : 1 pc. 300 mm : 1 pc. 400 mm : 1 pc. 600 mm : 2 pcs. 700 mm : 1 pc. 800 mm : 1 pc. 026 10 100 mm : 2 pcs. 150 mm : 1 pc. 500 mm : 4 pcs. 600 mm : 2 pcs. 900 mm : 1 pc. Cutting [Cutting] Plane circumference of the capillary tube with triangle file, etc., and then break off it. NOTE) Break off the capillary tube so that inner diameter is not deformed 2. Attachment of joint pipe Insert the attached joint pipe into the end of the capillary tube up to 15mm, and braze it. Form the capillary tube as same as that in the distributor assembly before replacement. 3. Brazing to indoor heat exchanger Attach the capillary tube processed in items 1 and 2 to the end of the pipe with brazing as shown below. 025 026 – 143 – 15-3. Replacement of Main Parts RAV-SM560BT-E, SM800BT-E Be sure to turn off the power supply before disassembling work. No. Item 1 Electric parts box 2 3 4 5 Fan Drain pan Heat exchanger TC sensor (Sensor side) Procedure 1) Remove the electric parts box. (Supplement: Refer to How to remove the electric parts box.) In this time, remove connectors of TA sensor, TC sensor, and TCJ sensor, if necessary.) Electric parts fixing screw 1) Remove connector of the fan motor. 2) Remove screws fixing the fan. (Screws at 4 positions) 3) Take off jointed portion of fan and cabinet, and then put down the fan. 4) Loosen set screw of the Silocco fan. 5) Remove set screw of the fan case. 6) Remove the fan motor mounting metal, and then replace the fan motor. Fan fixing screw Electric parts box Fan 1) Take down the indoor unit and then treat the drain pan on the floor. 2) Remove screws fixing the drain pan (12 positions) and then replace the drain pan. 1) Take down the indoor unit and then treat the heat exchanger on the floor. 2) Remove screws fixing the drain pan (12 positions) and then remove the drain pan. 3) Remove the shielding plate. (Screws at 4 positions) 4) Remove screws (at 4 positions) fixing the heat exchanger, and then replace the heat exchanger. 1) Remove the check port cover. 2) Remove the shielding plate. (At 4 positions) 3) Pull out the sensors inserted into pipe of the heat exchanger. Drain pan Shielding plate Heat exchanger Shielding plate Check port cover – 144 – AID-P710BH, P800BH, P1120BH Be sure to turn off the power supply before disassembling work. No. Item 1 Electric parts box Procedure 1) Remove the electric parts box. (Supplement: Refer to How to remove the electric parts box.) In this time, remove connectors of TA sensor, TC sensor, and TCJ sensor, if necessary.) Electric parts fixing screw 2 Fan 1) Remove connector of the fan motor. 2) Using a hexagonal wrench, loosen coupling fixing screws at 2 positions, and then slide the fan motor to reverse side. 3) Remove set screws (6 positions) of the fan case (left). 4) Remove fan motor mounting metal (screws at 2 positions) while holding the fan motor with hands. 5) Remove capacitor fixing screw (1 position). 6) Take down the fan motor and the fan case (left). 7) Loosen set screw of the Silocco fan. 8) Replace the fan motor. 3 Drain pan 1) Take down the indoor unit and then treat the drain pan on the floor. 2) Remove screws fixing the drain pan and then replace the drain pan. 4 Heat exchanger 1) Take down the indoor unit and then treat the heat exchanger on the floor. 2) Remove screws fixing the drain pan and then remove the drain pan. 3) Remove the shielding plate. (Screws at 4 positions) 4) Remove screws (at 5 positions) fixing the heat exchanger, and then replace the heat exchanger. 5 TC sensor (Sensor side) 1) Remove the check port cover. 2) Remove the shielding plate. (At 4 positions) 3) Pull out the sensors inserted into pipe of the heat exchanger. Capacitor Fan case (left) Silocco fan (right) Fan motor Drain pan Shielding plate Heat exchanger Shielding plate Check port cover – 145 – Electric parts box [SUPPLEMENT] How to remove the electric parts box Electric parts box The electric parts box is fixed to the indoor unit with claws at the rear side. Lift up it once and pull toward you. Then claws come off. Hook F7-4 3-4 Procedure 2 Remove these two screws to remove the electric parts box. Electric cable Remote controller cable Electric parts box cover A hole at the ceiling surface side is fixed to upper part of the electric parts box with claws. Lift up it once and pull toward you. Then claws come off. Procedure 1 Remove these two screws to remove the electric parts box cover. – 146 – 15-4. Replacements of Main Parts 15-4-1. Indoor Unit No. Part name  Front panel Remarks Procedure 1) Stop operation of the air conditioner, and turn off the power supply. 2) Push “PUSH” part at the lower side of the front panel, and then take off claws of the front panel from the installation board. 3) Open the suction grille and take off the front panel fixing screws (4 pcs.). 4) After turning the side grille as shown in the right figure, perform the following works. 5) Push the electric parts box with right thumb while pulling both sides of the front panel toward you. 1) Turn the side grille as shown in the right figure. 2) Push 3 positions at center of the discharge port and 2 positions at lower center of the discharge port, and then hook the hooking claws (3 positions) at upper surface of the front panel to the rear board. 3) Tighten 4 screws. • Insufficient hooking or pushing may cause falling of dewdrop or discomforting noise. When removing the front panel without turning the side grille, the front panel may be broken. Installation board Front panel Side grille Upper hooking claws (3 positions) Fixing screws ‚ Electric parts box assembly 1) Perform work of item 1 of . 2) Remove the drain guide. 3) Take off screws for earth lead wire attached to the end plate of the heat exchanger. 4) Disconnect connectors for fan motor and louver motor from the microcomputer assembly. 5) Remove the display unit at the center of the set from the main body. Screw Drain guide – 147 – Fixing screws No. Part name ‚ Electric parts box assembly ƒ Side grille Procedure Remarks 6) Take off fixing screw (1 position) of the electric parts base, and then pull out the electric parts base toward you. 7) Pull out Tc sensor and Tcj sensor from sensor holder of the heat exchanger. After replacement of the parts, incorporate two sensors without mistake as shown in the right figure. (Tube is attached to Tcj sensor.) 8) After replacement of the parts, set a trap so that water does not enter in the electric parts assembly. (Incomplete process for lead wires may cause water leak.) Tjc sensor position (Tube is attached to Tcj sensor.) TC sensor position 1) Remove shaft of the side grille from the air conditioner body. (First remove the left shaft and then other shafts while sliding the side grille left and right.) „ Heat exchanger 1) Perform work of item ‚. 2) Remove pipe holder at rear side of the main body. 3) Take off fixing screws (2 pcs.) at the left side of the end plate of the heat exchanger. Pipe holder Fixing screw 4) Take off two fixing screws of the heat exchanger holder (right), and then remove the heat exchanger holder (right). 5) Take off fixing screw at lower right side of the heat exchanger. 6) Remove the heat exchanger from the rear main body by lifting it upward. FFFixing Fixing screw Fixing screw – 148 – No. … Fan motor Remarks Procedure Part name 1) Perform work of item . 2) Perform work of item ƒ. 3) Loosen set screw of the cross flow fan from the discharge port. 4) Remove the bushing (right). Bushing (right) Set screw Push this part upward Cross fan Fixing screws 5) Take off two fixing screws of the motor band (right). 6) Pull out the motor band (right) and the fan motor outward. * Caution at reassembly • Determine position of the fan motor so that connector of the fan motor enters in the positioning rib of the motor band (right). † Cross flow fan 1) Perform works of items  and ƒ. 2) Loosen set screw of the cross flow fan from the discharge port. 3) Take off two fixing screws at the left side of the end plate of the heat exchanger, and then take off two fixing screws of the bearing base. Fixing screw 4) Lift up slightly the left side of the heat exchanger to remove the bearing base. 5) Lift up the left side of the heat exchanger toward you to remove the cross flow fan. * Caution at reassembly • Mount the cross flow fan so that the left end of the first joint from right of the drift fan matches with the left end of the positioning rib of the rear main body. – 149 – Positioning rib 15-4.2. Replacement Procedure of Service Main P.C. Board Replacement Procedure of Indoor Control P.C. Board (AIK-PXXXH series, SIK-PXXXH series) For this indoor control P.C. board [AIK/SIK-P SERVICE] corresponding to the common P.C. boards, follow to this replacement procedure when replacing P.C. board. (When using SIK-PXXXH series, P.C. board name, parts layout, etc. of the presently mounted P.C. board differ from those of this service P.C. board. However there is no problem in the functions.) Components • Service P.C. board (MCC-1370A [AIK/SIK-P SERVICE] : 1 unit • Replacement Procedure of Indoor Control P.C. Board : These sheets • Replacement Record of remote controller/indoor control P.C. board/outdoor control P.C. board : 1 sheet Replacement Procedure 1 2 Remove the presently mounted P.C. board from the electric parts box. (Be sure to send back the replaced P.C. board with Replacement Record attached separately.) Set Dip SW and jumpers of the service P.C. board according to the following exchange correspondence table. Model Service P.C. board Initial setup at shipment Part SW03 1 ON 2 OFF AIK-PXXXH series AIK-P400H AIK-P450H AIK-P500H AIK-P560H AIK-P710H AIK-P800H Match setup with one of former P.C. board. J01 〇 J07 〇 J09 〇 J11 〇 J12 〇 J14 〇 As it is : 〇 J15 〇 As it is : 〇 As it is : 〇 Cut : × J16 〇 As it is : 〇 Cut : × As it is : 〇 J17 〇 As it is : 〇 As it is : 〇 As it is : 〇 J19 × As it is : × J22 〇 As it is : 〇 J24 〇 Cut : × J25 〇 As it is : 〇 J36 × As it is : × J50 〇 J53 〇 J54 〇 J55 〇 As it is : 〇 Match setup with one of former P.C. board. As it is : 〇 As it is : Setup of jumper of the service P.C. board is not changed. 3 AIK-P630H Mount P.C. board according to [Mounting]. – 150 – [Mounting] In case of AIK-PXXXH series 1. As same as P.C. board before replacement, attach a cable (Black) which is screwed to the electric parts box to CN240 without using a cable (Black) attached previously to CN240 of the service P.C. board. CN204 Cable (Remove a cable attached previously to CN240 of the service P.C. board.) Service P.C. board 2. Attach other cables as same as P.C. board before replacement. <(Reference) Explanation about functions of switches/jumpers> • The following table shows the functions of the main switches and jumpers. Use as reference in miss-setup. Function Part name TA shift: Thermo-OFF point can be shifted in heating operation. SW03 Bit 1 Bit 2 1 OFF OFF + 6K 2 OFF ON + 4K ON OFF + 2K (Setup at shipment) ON ON ± 0K Shift Q’ty Selection of hot start control temperature : The starting temperature of the fan can be raised in heating operation. J09 Setup J09 Provided None Normal (Setup at shipment) Fan starting temp up (Approx. +4K) Setup of filter timer J11 J12 J11 J12 Provided Provided 240 hours (Setup at shipment) None Provided 2500 hours Provided None 5000 hours None None Without filter timer Setup – 151 –  CN213 display part CN04 temp. sensor CN05 heat exchanger CN240 Label CN231 CN230 P.C. board (MCC-1370A) CN223 Jumper – 152 – SW03: TA shift Jumper 15-5. Outdoor Unit RAV-SM560AT-E No. Part name  Common procedure Procedure Remarks CAUTION Valve cover Never forget to put on the gloves at working time, otherwise an injury will be caused by the parts, etc. 1. Detachment 1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner. 2) Remove the valve cover. (ST1T Ø4 x 10L, 1 pc.) • After removing screw, remove the valve cover pulling it downward. 3) Remove wiring cover (ST1T Ø4 x 10L, 2 pcs.), and then remove connecting cable. 4) Remove the upper cabinet. (ST1T Ø4 x 10L, 2 pcs.) • After taking off screws, remove the upper cabinet pulling it upward. 2. Attachment 1) Attach the waterproof cover. Wiring cover Upper cabinet CAUTION Be sure to attach a waterproof cover. If it is not attached, there is a possibility that water enters inside of the outdoor unit. Water-proof cover Cord clamp 2) Attach the upper cabinet. (ST1T Ø4 x 10L, 2 pcs.) • Hook the rear side of the upper cabinet to claw of the rear cabinet, and then put it on the front cabinet. 3) Perform cabling of connecting cables, and fix with cord clamp. (ST1T Ø4 x 10L 3 pcs.) 4) Attach the wiring cover. (ST1T Ø4 x 10L, 2 pcs.) 5) Attach the valve cover. (ST1T Ø4 x 10L, 1 pc.) • Insert the upper part of the upper cabinet, set hooking claw of the valve cover to the slit (at three positions) of the main body, and then attach it pushing upward. – 153 – Rear cabinet Claw No. Part name ‚ Front cabinet Remarks Procedure 1. Detachment 1) Perform work of item 1 of . 2) Remove screws (ST1T Ø4 x 10L, 2 pcs.) of the front cabinet and the inverter cover. 3) Take off screws of the front cabinet and the bottom plate. (ST1T Ø4 x 10L 3 pcs.) 4) Take off screws of the front cabinet and the motor support. (ST1T Ø4 x 10L, 2 pcs.) • The left side of the front side if made to insert to the rear cabinet, so remove it pulling upward. 3. Attachment 1) Insert hook at the left side of the front side into the rear cabinet. 2) Hook the lower part at the right side of the front to concavity of the bottom plate. Insert the hook of the rear cabinet into the slit of the front cabinet. 3) Attach the removed screws to the original positions. Motor support Front cabinet For single-phase type models, also take off this screw Front cabinet (Left side) Slit Claw Slit Hook Cord clamp Front cabinet Concavity at bottom plate Lower slit – 154 – No. Part name ƒ Inverter assembly Procedure 1. Detachment 1) Perform work of item 1 of . 2) Take off screws of the upper part of the front cabinet. • If removing the inverter cover under this condition, P.C. board can be checked. • If there is no space in the upper part of the upper cabinet, perform work of ‚. CAUTION Remarks Screws Front cabinet Inverter cover Be careful to check the inverter because high-voltage circuit is incorporated in it. 3) Perform discharging by connecting + , – polarities by discharging resistance (approx. 100Ω, 40W) or plug of soldering iron to + , – terminals of the C14 (printed as “CAUTION HIGH VOLTAGE”) electrolytic capacitor (500µF) of P.C. board. Cord clamp WARNING The electrolytic capacitor may not normally discharge according to error contents and the voltage may remain. Therefore, be sure to discharge the capacitor. Screws WARNING For discharging, never use a screwdriver and others for short-circuiting between + and – electrodes. As the electrolytic capacitor is one with a large capacity, it is very dangerous because a large electric spark will occur. 4) Take off screws (ST1T Ø4 x 10L, 2 pcs.) fixing the main body and the inverter box. 5) Remove various lead wires from the holder at upper part of the inverter box and wiring holder at right side of the terminal block. 6) Remove the lead wire from the bundled part at left side of the terminal block. 7) Pull the inverter box upward. 8) Disconnect connectors of various lead wires. Plug of soldering iron Discharging position (Discharging period 10 seconds or more) Inverter assembly REQUIREMENT As each connector has a lock mechanism, avoid to remove the connector by holding the lead wire, but by holding the connector. – 155 – Remove the connectors with locking function by pushing the part indicated by the arrow mark. No. Part name „ Control P.C. board assembly Remarks Procedure 1) Disconnect lead wires and connectors connected from the control P.C. board assembly to other parts. 1. Lead wires • Connection with the power terminal block: 3 wires (Black, White, Orange) • Earth wire: 1 wire (Black) 2. Connectors • Connection with compressor: Remove 3P connector. • Connection with reactor: Remove the relay connectors from P07, 08 (2P, White) and P12, 13 (2P, Yellow) CN300 : Outdoor fan (3P, White) CN301 : Position detection (5P, White) CN701 : 4-way valve (3P, Yellow) CN600 : TE sensor (2P, White) CN601 : TD sensor (3P, White) CN603 : TS sensor (3P, White) CN602 : TO sensor (3P, White) CN500 : Case thermo. (2P, White) CN703 : PMV (6P, White) Take off earth screws. Power line Inverter box (Metal sheet) Control P.C. board assembly P.C. board base Hooking claws (4 positions) 2) Remove the inverter box (Metal plate). 3) Remove the control board assembly from P.C. board base. (Remove the heat sink and the control board assembly as they are screwed.) Control P.C. board assembly NOTES: 1. CN300, CN301 and CN701, etc. at the control board assembly side are connectors with locking function. Therefore, remove the connector while pushing the part indicated by an arrow mark. 2. Remove 4 hooking claws of P.C. board base, and remove upward the heat sink with hands. P.C. board base 4) Take off 3 screws fixing the heat sink and main control board assembly side, and replace the board with a new one. NOTE: When mounting a new board, check that the board is correctly set in the groove of the base holder of P.C. board base. Attach the P.C. board so that the heat sink comes securely contact with the metal sheet. – 156 – Heat sink Inverter box (Metal sheet) No. Part name … Rear cabinet † Fan motor Remarks Procedure 1) Perform works of items 1 of  and ‚, ƒ. 2) Take off fixed screws for the bottom plate. (ST1T Ø4 x 10L, 3 pcs.) 3) Take off fixed screws for the heat exchanger. (ST1T Ø4 x 10L, 2 pcs.) 4) Take off fixed screw for the valve mounting plate. (ST1T Ø4 x 10L, 1 pc.) 1) Perform works of items 1 of  and ‚. 2) Take off the flange nut fixing the fan motor and the propeller. • Turning it clockwise, the flange nut can be loosened. (To tighten the flange nut, turn counterclockwise.) 3) Remove the propeller fan. 4) Disconnect the connector for fan motor from the inverter. 5) Take off the fixing screws (3 pcs.) holding by hands so that the fan motor does not fall. Rear cabinet Flange nut Loosen the nut by turning clockwise NOTE: Tighten the flange nut with torque 4.9Nm (50kgf/cm). Propeller fan Fan motor – 157 – No. Part name ‡ Compressor Procedure Remarks 1) Perform works of items 1 of  and ‚ , ƒ, „, …. 2) Discharge refrigerant gas. 3) Remove the partition plate. (ST1T Ø4 x 10L, 2 pcs.) 4) Remove the noise-insulator. 5) Remove the terminal covers of the compressor, and disconnect lead wires of the compressor and the compressor thermo assembly from the terminal. 6) Remove pipes connected to the compressor with a burner. Partition plate Compressor lead CAUTION Pay attention to that flame does not involve 4-way valve or PMV. (If doing so, a malfunction may be caused.) 7) Take off the fixing screws of the bottom plate and heat exchanger. (ST1T Ø4 x 10L, 2 pcs.) 8) Take off the fixing screws of the valve clamping plate to the bottom plate. 9) Pull upward he refrigerating cycle. 10) Take off nut fixing the compressor to the bottom place. Case thermo Heat exchanger Remove (Discharge pipe) Remove (Suction pipe) Screw Valve support board CAUTION When reconnecting the lead wires to the compressor terminals after replacement of the compressor, be sure to caulk the Faston terminal without loosening. ˆ Reactor 1) Perform works of item 1 of  and ƒ. 2) First take off two screws (ST1T Ø4 x 10L) of the reactor fixed to the reactor support. 3) Remove the reactor support from the partition plate. (ST1T Ø4 x 10L, 4 pcs.) 4) Take off two screws (ST1T Ø4 x 10L) directly attached to the partition plate. – 158 – Screws (2 pcs.) Compressor bolt (3 pcs.) Reactor Partition plate Reactor support board No. Part name Procedure Remarks ‰ Pulse Modulating 1. Detachment Valve (PMV) coil 1) Perform works of items  and ‚. 2) Release the coil from the concavity by turning it, and remove coil from the PMV. PMV body Positioning extrusion 2. Attachment 1) Put the coil deep into the bottom position. 2) Fix the coil firmly by turning it to the concavity. Concavity PMV coil Š Fan guard 1. Detachment 1) Perform works of items 1 of , and ‚. 2) Remove the front cabinet, and put it down so that fan guard side directs downward. Minus screwdriver CAUTION Perform works on a corrugated cardboard, cloth, etc. to prevent flaw on the product. 3) Remove the hooking claws by pushing with minus screwdriver along with the arrow mark in the right figure, and remove the fan guard. Hooking claw Front cabinet 2. Attachment 1) Insert claws of the fan guard in the hole of the front cabinet. Push the hooking claws (10 positions) with hands and then fix the claws. CAUTION All the attaching works have completed. Check that all the hooking claws are fixed to the specified positions. Fan guard – 159 – Front cabinet RAV-SM800AT-E No. Part name  Common procedure Procedure Remarks CAUTION Never forget to put on the gloves at working time, otherwise an injury will be caused by the parts, etc. 1. Detachment 1) Stop operation of the air conditioner, and also turn off switch of the breaker. 2) Remove the front panel. (ST1T Ø4 x 10L, 3 pcs.) • After taking off screws, remove the front panel by pulling it downward. 3) Disconnect the connecting cables and power cord from the terminals and cord clamp. 4) Remove the upper cabinet. (ST1T Ø4 x 10L, 6 pcs.) Front cabinet Upper plate of cabinet 2. Attachment 1) Attach the waterproof cover. CAUTION Be sure to attach a waterproof cover. If it is not attached, there is a possibility that water enters inside of the outdoor unit. 2) Attach the upper cabinet. (ST1T Ø4 x 10L, 6 pcs.) 3) Connect the connecting cable and power cord at the terminal and fix them with cord clamp. CAUTION Using bundling band sold at a market, be sure to fix the power cables and indoor/ outdoor connecting cables along the interunit cable so that they do not come to contact with the compressor, valves and cables at gas side, and the discharge pipe. 4) Attach the front cabinet. (ST1T Ø4 x 10L, 3 pcs.) – 160 – Water-proof cove No. Procedure Part name Remarks ‚ Discharge port 1. Detachment cabinet 1) Perform work of item 1 of . 2) Take off screws (ST1T Ø4 x 10L, 3 pcs.) of discharge port cabinet for the partition plate. 3) Take off screws (ST1T Ø4 x 10L, 2 pcs.) of discharge port cabinet for the bottom plate. 4) Take off screw (ST1T Ø4 x 10L, 1 pc.) of discharge port cabinet for the heat exchanger. 5) Take off screws (ST1T Ø4 x 10L, 2 pcs.) of discharge port cabinet for the fin guard. Side cabinet Inverter Fin guard 2. Attachment 1) Put the upper left side of the discharge port cabinet on the end plate of the heat exchanger, and then fix it with screw. (ST1T Ø4 x 10L, 1 pc.) 2) Attach the removed screws to the original positions. End plate of the heat exchanger ƒ Side cabinet 1) Perform work of item 1 of . 2) Remove screw fixing the inverter and the side cabinet. (ST1T Ø4 x 10, 1 pc.) 3) Remove screws of the side cabinet and the valve support plate. (ST1T Ø4 x 10, 2 pcs.) 4) Remove screw of the side cabinet and the cabling panel (Rear). (ST1T Ø4 x 10, 1 pc.) 5) Remove screw of the side cabinet and the bottom plate. (ST1T Ø4 x 10, 1 pc.) 6) Remove screw of the side cabinet and the fin guard (Heat exchanger). (ST1T Ø4 x 10, 2 pcs.) Discharge port Valve support plate Side cabinet Inverter Side cabinet Valve support plate – 161 – Cabling panel (Rear) No. Part name „ Inverter assembly Procedure 1) Perform works of items of 1) to 5) of . 2) Take off screw (ST1T Ø4 x 10L, 1 pc.) of the upper left part of the inverter cover. • If removing the inverter cover under this condition, P.C. board can be checked. • If there is no space in the upper part of the upper cabinet, perform works of items 6) to 7) of (1) and remove the partition fixing plate. (ST1T Ø4 x 10L, 1 pc.) Remarks Screw Inverter assembly Holder CAUTION Inverter cover Be careful to check the inverter because high-voltage circuit is incorporated in it. 3) Perform discharging by connecting the discharging resistance (approx. 100Ω, 40W) or plug of soldering iron to + , – terminals of the C10 too 13 (printed as “CAUTION HIGH VOLTAGE”) electrolytic capacitor (760µF) of P.C. board. Inverter assembly Plug of soldering iron WARNING The electrolytic capacitor may not normally discharge according to error contents and the voltage may remain. Therefore, be sure to discharge the capacitor. Left time: 10 sec. or more WARNING For discharging, never use a screwdriver and others for short-circuiting between + and – electrodes. As the electrolytic capacitor is one with a large capacity, it is very dangerous because a large electric spark will occur. 4) Remove various lead wires from the holder at upper part of the inverter box. 5) Remove the hook for the partition plate (lower left side). 6) Remove the hook for the side cabinet (lower left side) and the screw, and lift up the inverter assembly upward. (ST1T Ø4 x 10L, 1 pc.) In this time, cut off the band bundling each lead wire. 7) Disconnect connectors of various lead wires. REQUIREMENT As each connector has a lock mechanism, avoid to remove the connector by holding the lead wire, but by holding the connector. – 162 – Inverter assembly Hook for the side cabinet (lower left side) Screw Remove the connectors with locking function by pushing the part indicated by the arrow mark. No. Part name … Control P.C. board assembly Remarks Procedure 1) Remove the inverter box from P.C. board base. 2) Disconnect lead wires and connectors connected from the control P.C. board assembly to other parts. 1. Lead wires: With the power terminal block: 2 pcs. (Single phase) (Red, White) With the compressor: 3 pcs. (Red, White, Black) 2. Connectors CN301 : Outdoor fan (3P, White) *Note 1) CN300 : Position detection (5P, White) CN700 : 4-way valve (3P, Yellow) *Note 1) CN702 : PMV coil (6P, White) CN600 : TD sensor (3P, White) CN605 : TS sensor (3P, White) *Note 1) CN604 : TE sensor (2P, White) *Note 1) CN601 : TO sensor (2P, White) CN02 : Indoor/Outdoor connecting terminal block (2P, Black) CN500 : Case thermo (2P, White) *Note 1) CN14, CN15 : Reactor (3P, Relay connector, Blue) *Note 1) Inverter box (Metal sheet) P.C. board base Cycle control P.C. board assembly Inverter control P.C. board assembly Cycle control P.C. board assembly *Note 1) Remove the connector while releasing locking of the housing. 3) Remove the control P.C. board assembly from P.C. board base. (Remove the heat sink and the inverter control P.C. board assembly as they are screwed.) Inverter control P.C. board assembly Note 2) Remove the heat sink upward by taking off two claws of P.C. base and holding the heat sink. Inverter control P.C. board assembly 4) Take off three screws fixing the heat sink to the control P.C. board assembly. 5) Mount a new control P.C. board assembly. Note 3) When mounting a new board, check that it is correctly set in the groove of the base holder of P.C. board base. Groove for P.C. boaed Heat sink – 163 – Inverter box (Metal sheet) No. Part name † Fan motor Remarks Procedure 1) Perform works of items 1) to 5), 7) of  2) Remove the flange nut fixing the fan motor and the propeller fan. • Loosen the flange nut by turning clockwise. (To tighten the flange nut, turn it counterclockwise.) 3) Remove the propeller fan. 4) Remove the lead wire from the hook fixing the fan motor lead wires on the motor base. (Three positions) 5) Disconnect the connector for fan motor from the inverter. 6) Take off the fixing screws (4 pcs.) while holding by hands so that the fan motor does not fall. Flange nut Loosen by turning clockwise NOTE : Tighten the flange nut with torque 9.8Nm (100kgf/cm). Propeller fan Fan motor Motor base – 164 – Fixing claws for fan motor lead wires (3 positions) No. Part name † Compressor Procedure Remarks 1) Perform works of items , ‚, ƒ, „, and …. 2) Evacuate refrigerant gas. 3) Disconnect the connector for fan motor from the inverter. 4) Take off screws fixing the motor base to the bottom plate. (ST1T Ø4 x 10L, 2 pcs.) 5) Remove the motor base together with the fan motor and the propeller fan. 6) Take off screws fixing the partition plate to the valve support plate. (ST1T Ø4 x 10L, 2 pcs.) 7) Remove the valve support plate. (M6 x 4 pcs.) 8) Take off screws of the partition plate and the bottom plate. (ST1T Ø4 x 10L, 2 pcs.) 9) Take off screws of the partition plate and the heat exchanger. (ST1T Ø4 x 10L, 2 pcs.) 10) Remove the noise-insulator. 11) Remove the terminal covers of the compressor, and disconnect lead wires of the compressor and the compressor thermo assembly from the terminal. 12) Remove pipes connected to the compressor with a burner. Motor base Partition plate Screw Valve support Partition plate CAUTION Pay attention to that flame does not involve 4-way valve or PMV. (If doing so, a malfunction may be caused.) Valve support 13) Pull the refrigerating cycle upward. 14) Take off nut fixing the compressor on the bottom plate. (3 pcs.) 15) Pull the compressor toward you. CAUTION When reconnecting the lead wires to the compressor terminals after replacement of the compressor, be sure to caulk the Faston terminal without loosening. Compressor lead wire Case thermo Remove (Suction pipe) Remove (Discharge pipe) Compressor nut (3 pcs.) – 165 – No. Part name ˆ Reactor Procedure 1) Perform works of items 1 of  and „. 2) Take off screws fixing the reactor. (Ø4 x 10L , 2 pcs. per one reactor. An outdoor unit has two reactors on the partition plate.) Remarks Screws Partition plate Reactor ‰ Pulse Modulating Valve (PMV) coil 1. Detachment 1) Perform works of items 1 of  and ƒ. 2) Remove the coil from PMV body while pulling it upward. PMV body Positioning extrusion 2. Attachment 1) Match the positioning extrusion of the coil surely to the concavity of PMV body to fix it. PMV coil – 166 – Concavity No. Part name Š Fan guard Procedure Remarks 1. Detachment 1) Perform works of items 1 of  and „. 2) Remove the air flow cabinet, and put it down so that the fan guard side directs downward. Discharge port cabinet Bell mouth Perform work on a corrugated cardboard, cloth, etc. to prevent flaw to the product. Remove two screws 3) Take off screws fixing the bell mouth. (ST1Tf4 x 10L, 2 pcs.) 4) Remove the bell mouth. 5) Remove the hooking claws by pushing with minus screwdriver along with the arrow mark as shown in right figure. 2. Attachment 1) Insert claw of the fan guard in hole of the discharge panel. Push the hooking claws (5 positions) with hands and fix the claws. Bell mouth Discharge port cabinet Minus screwdriver Fan guard After all the attachment works are completed, check that all the hooking claws are fixed to the specified positions. 2) Mount the bell mouth by hooking three claws at upper side of the bell mouth in the slits on the discharge cabinet. 3) After attachment, fix the bell mouth with screws. (ST1Tf4 x 10L, 2 pcs.) Hooking claw Discharge port cabinet Slit (3 positions) Bell mouth Claw (3 positions) – 167 – 16. EXPLODED VIEWS AND PARTS LIST 16-1. Indoor Unit 4-Way Air Discharge Cassette Type RAV-SM560UT-E/RAV-SM800UT-E 209 229 CODE No. SET DATA UNIT No. 225 208 SETTING TEST 202 226 201 207 210 203,204 No. UNIT SET 224 R.C. 215,216,217, 218,221,222 211,212,213, 214,219,220 CL 223 227,228 206 Location No. Part Description Location No. Part Description 201 43121703 202 203 204 205 206 43120215 4314J122 4314J123 4318T313 43172160 207 208 209 210 211 212 213 214 215 215 43151279 43121692 43170232 43079249 43047545 43047546 43194051 43194026 43194081 43194081 Pump, Drain, ADP-1409, 220-240V Fan, Ass’y Turbo, TJ461 Refrigeration Cycle Ass’y Refrigeration Cycle Ass’y Owner’s Manual Pan Ass’y, Drain, PS-F+ABS, Sheet Switch, Float, FS-0218-106 Motor, Fan, SWF-230-60-1 Hose, Drain, 25A Band, Hose Nut, Flare, 1/4 IN, Ø6.35 Nut, Flare, 3/8 IN, Ø9.52 Socket, Ø6.35 Socket, Ø9.52 Nut, Flare, 1/2 IN, Ø12.7 Nut, Flare, 1/2 IN, Ø12.7 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 43194078 43194080 43194079 43049697 43047609 43147195 43194029 43019904 43170231 43139137 43097204 43147656 43147657 4316V194 4316V195 4316V196 4316V197 Nut, Flare, 5/8 IN, Ø15.88 Socket, 1/2 IN, Ø12.7 Socket, 5/8 IN, Ø15.88 Bonnet, Ø6.35 Bonnet, Ø9.52 Bonnet, 1/2 IN, Ø12.7 Bonnet, Ø15.88 Holder, Sensor, SUS Hose, Drain Rubber, Cushion Nut Distributor Ass’y Distributor Ass’y Remote Controller, SX-A3JE Remote Controller, SX-A11JE Remote Controller, WX-W2JE Remote Controller, WH-H1JE – 168 – 402 A B 404 405 403 Location No. Part Description 401 402 403 404 43060750 43050382 43150297 43160445 405 4316V188 Terminal Block, 3P Sensor, TC (F6) Sensor, TC Terminal Block, 2P, 1A, AC30V P.C. Board Ass’y, MMC-1402 – 169 – 401 Concealed Duct Type RAV-SM560BT-E/RAV-SM800BT-E 230,231 202,203 210,211,214, 215,218,219 204 227 212,213,216, 217,220,221 CODE No. SET DATA UNIT No. SETTING TEST R.C. No. 224,225 222 Location No. Part 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 43120149 4314J100 4314J101 43147654 43147655 43121643 43121645 43191304 43191305 43047545 43047546 43194081 43194078 43194051 43194026 43194080 43194079 208,209 Description 206,207 201 UNIT SET CL Location No. Part Description 218 219 220 221 222 223 224 43049697 43047609 43147195 43194029 43019822 43160394 43155088 225 43155096 226 43121688 227 228 229 230 231 4316V194 4316V195 4316V196 43119462 43119463 Bonnet, Ø6.35 Bonnet, Ø9.52 Bonnet, 1/2 IN, Ø12.7 Bonnet, Ø15.88 Holder, Sensor, SUS Connector, 9P Capacitor, Electrolytic, 2.5MFD, 500V Capacitor, Electrolytic, 5MFD, 400V Pump, Drain, PJD-05230TF, 220-240V 50/60Hz Remote Controller, SX-A3JE Remote Controller, SX-A11JE Remote Controller, WX-W2JE Filter (SM560BT-E) Filter (SM800BT-E) Fan, Multi Blade Refrigeration Cycle Ass’y Refrigeration Cycle Ass’y Distributor Ass’y Distributor Ass’y Motor, Fan Motor, Fan Drain Ass’y Pan, Drain Nut, Flare, 1/4 IN, Ø6.35 Nut, Flare, 3/8 IN, Ø9.52 Nut, Flare, 1/2 IN, Ø12.7 Nut, Flare, 5/8 IN, Ø15.88 Socket, Ø6.35 Socket, Ø9.52 Socket, 1/2 IN, Ø12.7 Socket, 5/8 IN, Ø15.88 – 170 – 403 402 3 401 A B 1 2 406 404 405 Location No. Part 401 402 403 404 43060750 43050382 43150299 43160445 405 4316V189 406 43158180 Description Terminal Block, 3P Sensor, TC (F6) Sensor, TA Terminal Block, 2P, 1A, AC30V P.C. Board Ass’y, MCC-1403 (220-240V) Transformer, TT-09 (AC220-240V) – 171 – RBC-U21PG(W) - E 304 311 312 306 305 307 301 303 313 302 310 308 309 Location No. Part 301 302 303 304 305 306 307 43409164 43480010 43407120 4302C029 43409173 43422001 43422002 Description Location No. Part 308 309 310 43407116 43409168 43409182 311 312 313 43407123 43460108 43482025 Panel, PS-HI100 Air Filter, ABS Outlet, Air Form, PS-F Motor, Louver, MP24GA Louver, ABS Joint, Kit Joint, Kit – 172 – Description Grille, Catch, ABS Grille, Air, Inlet Cover, Panel Ass’y, PS-HI100 Fix, Motor, ABS Lead, Motor Washer, SPCC High-Wall Type RAV-SM560KRT-E/RAV-SM800KRT-E 220 219 221 232 213 229 222 227 201 218 216 211 228 230 208 209 231 226 203 217 205 224 223 225 212 210 207 204 236 233 202 206 Location No. Part Description Location No. Part Description 201 202 203 204 205 206 207 208 209 210 211 212 213 43T00355 43T00356 43T80014 43T80013 43T80003 43T01004 43T03010 43T03011 43T03012 43T09317 43T70301 43T21302 43T44316 213 42T44317 216 216 43T11002 43T11306 Front Panel Ass’y Grille Ass’y Air Filter, (L) Air Filter, (R) Filter, Frame Mark Body, Right Body, Left Hide, Claw Grille, Horizontal Hose Ass’y, Drain Motor, Stepping, MP35EA12 Refrigeration Cycle Ass’y (SM560KRT-E) Refrigeration Cycle Ass’y (SM800KRT-E) Pipe, Shield Pipe, Shield (SM800KRT-E) 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 236 43T19003 43T49009 43T49036 43T49039 43T49038 43T49037 43T79007 43T39016 43T60075 43T21327 43T20014 43T22008 43T39015 43T03305 43T07022 43T82007 43T85400 43T62029 Holder, Sensor Spring Plate, EVA, Seal Holder, Plate EVA, Seal (U) Plate EVA, Seal (D) Holder, Plate EVA, Seal (D) Guide, Drain Fix Motor Fan Motor Cord Motor, Fan, ICF-340-30-2 Fan, Cross Flow Bearing Base, Bearing Back Body Ass’y Holder, Pipe Plate, Installation Owner’s Manual Cover, Terminal – 173 – RAV-SM560KRT-E/RAV-SM800KRT-E 411 410 406 408 402 401 412 413 404 404 403 Location No. Part Description Location No. Part Description 401 402 403 404 406 408 410 43T60047 43T60320 43T60321 43T50304 43T69005 43T58302 43T69346 Terminal, 3P Terminal, 3P Terminal, 2P Temperature Sensor, TC, TCJ Sensor, Thermostat, TA Transformer, TT-02 P.C. Board, Ass’y, MCC1370A, MCC-1370B (SM560KRT-E) 410 43T69347 411 43T69325 412 43T69066 413 43162047 P.C. Board, Ass’y, MCC1370A, MCC-1370B (SM800KRT-E) P.C. Board, Ass’y, AI, MCC1337 P.C. Board Ass’y, WRS-LED, MCC-819-02 Cord clamp – 174 – 16-2. Outdoor Unit 4 RAV-SM560AT-E 31 INVERTER 11 30 25 17 13,14 2 29 10 9 18 7 8 28 26 21, 22 23, 24 27 3 12 6 15 16 20 5 19 1 Location No. Part Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 43105037 43100239 43042468 43005508 43119460 43119448 43062230 43047667 43020329 4302C033 4314G128 43041609 43050407 43063317 43097206 43049749 43046363 Cabinet, Front, PCM Cabinet, Back, PCM Base, Ass’y Cabinet, UP, PCM Guard, Fan, PP Cover, Packed, Valve Cover, Wiring, Ass’y Nut, Flange Fan, Propeller, PJ421 Motor, Fan, ICF-140-43-1 Condenser, Ass’y Compressor, DA130A1F-23F Thermostat, Bimetal Holder, Thermostat Bolt, Compressor, M6 Rubber, Cushion Valve, 4-WAY, VT7101D Location No. Part Description 18 19 43146617 43046385 20 43046394 21 22 23 43046392 43147195 43046393 24 25 26 27 28 29 30 31 43147196 43055521 43063321 43063322 43063325 43063332 43089160 43032441 Solenoid, Coil, LB64045 Valve, Pulse, Modulating, SKV-18D26 Coil, PMV, DKVMOZS744BO Valve, Packed, 6.35, AO Bonnet, 1/2 IN Valve, Packed, 12.7, HKUR410A-H4 Bonnet, 1/4 IN, 6.4 CU Reactor, CH-57 Holder, Sensor, 4-8, 9.52 Holder, Sensor, 6-11.4, 12.7 Holder, Sensor, 6-6.35, 8 Holder, Sensor Cap, Waterproof Nipple, Drain – 175 – 702 TE Sensor TS Sensor TO Sensor TD Sensor 701 705 703 704 Location No. Part 701 43050334 702 43050382 703 704 43062228 43160469 706 4316V182 Description Sensor, TD (F4), TD Sensor Sensor, TC (F6), TC Sensor Base, P.C. Board, ABS Terminal Block, 6P, AC250V, 20A P.C. Board Ass’y, MCC-813 – 176 – Revised 3/June/2004 RAV-SM800AT-E 4 5 11 38 37 10 8 9 36 32 21,22 34 24 2 23 7 35 30 14 1 6 31 3 13 27 15 18 33 16,17 12 19 20 26 Location No. Part Description Location No. Part 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 43191634 43191636 43191635 43191637 43005489 43191630 43122065 43047667 43120213 43121693 4314G117 43191515 43191605 43119390 43041772 43050407 43063317 43005482 43049739 43097204 43046344 Cabinet, Air Outled Cabinet, Front, Ass’y Cabinet, Side, Ass’y Panel, Upper Guard, Fin Guard, Fan, PP-K Bell Mouth, Plastic Nut, Flange Fan, Propeller, PJ491, AS-G Motor, Fan, ICF-140-63-1 Condenser, Ass’y Panel, Front, Piping Panel, Back, Piping Hanger Compressor Ass’y Thermostat, Bimetal Holder, Thermostat Base Ass’y Cushion, Rubber Nut Valve, 4-WAY, CHV-0213 22 43046348 23 43046385 24 43046386 25 26 43048066 43146584 27 28 29 30 31 32 33 43047401 43146613 43194029 43148169 43148176 43058266 43063321 34 43063322 35 43063325 36 37 38 43063332 43032441 43058268 – 177 – 28 25 29 Description Coil, Solenoid, VHV-01A150A1 Valve, Pulse, Modulating, SKV-18D26 Coil, PMV, DKV-MO25743BO Accumulator Ass’y Valve, Packed, 9.52DIA, HKT9.52 Bonnet, 3/8 IN, 9.52 CU Valve, Ball, B5/8F Bonnet Strainer Strainer Reactor, CH-47-Z-K Holder, Sensor, 4-8, 9.52 Holder, Sensor, 6-11.4, 12.7 Holder, Sensor, 6-6.35, 8 Holder, Sensor Nipple, Drain Reactor, CH-43-Z-K INVERTER COVER 708,709 702 TO Sensor TE Sensor TS Sensor TD Sensor 706 701 INVERTER BOX 707 704 703,705 Location No. Part Description 701 702 704 43050334 43050382 43160469 705 707 43162042 4316V183 708 4316V184 Sensor, TD (F4), TD Sensor Sensor, TC (F6), TC Sensor Terminal Block, 6P, AC250V, 20A Base, P.C. Board, ABS P.C. Board Ass’y, CDB, MCC-1398 P.C. Board Ass’y, IPDU, MCC-1359 – 178 – RAV-SM560XT-E/RAV-SM800XT-E 220 222 217 227 224 218 214 208 207 223 208 212 203 206 202 216 219 235 204 221 225 226 213 210 211 229 215 209 233 228 231 205 201 235 234 232 230 Location No. Part Description Location No. Part Description 201 202 203 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 43T09312 43T00357 43T00361 43T00358 43T01004 43T79303 43T80302 43T00359 43T00360 43T20303 43T20304 43T20305 43T19309 43T21325 43T72301 43T79304 43T19303 43T09313 43T44319 43T03303 Air Inlet Grille Panel Arm Ass’y Front Panel Ass’y Front Panel Ass’y Mark Drain Band Air Filter Cap Screw C Cap Screw LR Fan Cover Motor Band Ass’y Multiblade Fan Screw Set (D-T) Fan Motor Drain Pan Ass’y Drain Hose Ass’y Lover Motor Ass’y Horizontal Louver Refrigeration Ass’y, Ø12.70 Back Body Ass’y 220 221 222 223 224 225 226 227 228 229 230 231 231 232 232 232 232 233 234 235 43T09314 43T49303 43T19304 43T19305 43T19306 43T19307 43T19308 43T82302 43T60314 43T62303 43T83003 43T69309 43T69310 43T85335 43T85336 43T85337 43T85341 43T49304 43T80003 43T00365 Vertical Louver Pipe Holder Cover Body L Cover Body R Cover Body LD Bush Body R Bush Body D Installation Plate Terminal Cover Connector Cover Remote Controller Holder Wireless Remote Controller Wireless Remote Controller Owner’s Manual Owner’s Manual Owner’s Manual Owner’s Manual Flexible pipe, Ø12.70, Ass’y Filter Flame Grille Stopper Ass’y – 179 – 401 403 402 404 405 406 408 Location No. Part 401 401 401 401 402 43T69311 43T69312 43T69313 43T69314 43T50004 407 Description P.C. Board P.C. Board P.C. Board P.C. Board Temperature Sensor – 180 –