TRANE Air Conditioner/heat Pump(outside Unit) Manual L0905060
User Manual: TRANE TRANE Air conditioner/heat pump(outside unit) Manual TRANE Air conditioner/heat pump(outside unit) Owner's Manual, TRANE Air conditioner/heat pump(outside unit) installation guides
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18=AC51D1 :!l!i i i Condensing Units 4TTR4 ALL phases of this installation IMPORTANT -- This Document pack upon completion of work. must comply is customer with property NATIONAL, STATE and is to remain These instructions do not cover all vmniations in systems nor provide for every possible contingency to be met in connection with installation. All phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser's purposes, the matter should be referred to your installing dealer or local distributor. A. GENERAL AND LOCAL with this unit. UNiT CONTAINS CODES Please return to service information R-410A REFRIGERANT! R-410A OPERATING PRESSURE EXCEEDS THE LIMIT OF R-22. PROPER SERVICE EQUIPMENT IS REQUIRED. FAILURE TO USE PROPER SERVICE TOOLS MAY RESULT IN EQUIPMENT DAMAGE OR PERSONAL INJURY. SERVICE This information is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience. Any attempt to repair a central air conditioning product may result in personal injury and or property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use. NOTICE: Trane has always recommended installing matched indoor and outdoor systems. USE ONLY R-410A REFRIGERANT APPROVED POE COMPRESSOR © AND OIL. 5 FT. ABOVE UNiT = UNRESTRICTED Trane approved The benefits of installing approved matched systems are maximum efficiency, optimum performance and best overafl system reliability. These units use R-410A refrigerant which operates at 50 to 70% higher pressures than R-22. Use only R-410A approved service equipment. Refrigerant cylinders are painted a "Rose" color to indicate the type of refrigerant and may contain a "dip" tube to allow for charging of liquid refrigerant into the system. All R-410A systems use a POE oil that readily absorbs moisture from the atmosphere. To limit this "hygroscopic" action, the system should remain sealed whenever possible. If a system has been open to the atmosphere for more than 4 hours, the compressor oil must be replaced. Never break a vacuum with air and always change the driers when opening the system for component replacement. For specific handling concerns with R-410A and POE oil, reference Retrofit Bulletin TRN-APGO2-EN. Check for transportation damage after unit is uncra_d. Report promptly, to the carrier, any damage found to the unit. To determine the electrical power requirements of the unit, refer to the nameplate of the unit. The electrical power available must agree with that listed on the nameplate. B. LOCATION AND PREPARATION OF THE UNiT 1. When removing unit from the pallet, notice the tabs on the basepan. Remove tabs by cutting with a sharp tool as shown in Figure 2 (see page 2). 2. The unit should be set on a level support pad at least as large as the unit base pan, such as a concrete slab. If this is not the application used please refer to application bulletin "Trane APB2001-02". |nsta||er's @ Guide BASEPAN Final refrigerant charge adjustment is necessary. Use the Subcooling Charging procedure on page 6 or in the outdoor unit Service Facts. TAB REMOVAL [sE"°VE 1. Determine 2. Consider BS AS I OWN) 3. The support pad must NOT be in direct contact with any structure. Unit must be positioned a minimum of 12" from any wall or surrounding shrubbery to insure adequate airflow. Clearance must be provided in front of control box (access panels) & any other side requiring service access to meet National Electrical Code. Also, the unit location must be far enough away from any structure to prevent excess roof run-off water from pouring directly on the unit. Do not locate unit(s) close to bedroom(s). 4. The top discharge area must be unrestricted five (5) feet above the unit. for at least 5. When the outdoor unit is mounted on a roof; be sure the roof will support the unit's weight. Properly selected isolation is recommended to prevent sound or vibration transmission to the building structure. 6. The maximum length of refrigerant lines from outdoor indoor unit should NOT exceed sixty (60) feet. 7. If outdoor unit is mounted above mum lift should not exceed sixty If air handler is mounted above mum lift should not exceed sixty to the air handler, maxi(60) feet (suction line). condensing unit, maxi(60) feet (liquid line). NOTE: Refer to "Refrigerant Piping Software" Pub. No. 32-3312-0" (the position of the * denotes the latest revision number). 8. Locate and install indoor coil or air handler in accordance with instruction included with that unit. REFRIGERANT If using existing refrigerant are brazed, not soldered. Condensing will be very difficult to rebend once it Determine the best starting point for routing the refrigerant tubing -- INSIDE OR OUTSIDE THE STRUCTURE. 4. Provide a pull-thru hole of sufficient size to allow both liquid and gas lines. 5. Be sure the tubing is of sufficient length. 6. Uncoil the tubing -- do not link or dent. 7. Route the tubing making all required bends and properly secure the tubing before making connections. 8. To prevent a noise within the building structure due to vibration transmission from the refrigerant lines, the following precautions should be taken: a. When the refrigerant lines have to be fastened to floor joists or other framing in a structure, use isolation type hangers. b. Isolation hangers should also be used -when refrigerant lines are run in stud spaces or enclosed ceilings. c. Where the refrigerant lines run through they should be insulated and isolated. d. Isolate the lines from all ductwork. D. SERVICE VALVE a wall or sill, OPERATION BRASS LIQUID AND GAS LINE SERVICE VALVES The Brass Liquid and Gas Line Service Valves are factory shipped in the seated position to hold factory charge. The pressure tap service port (when depressed) opens only to the field brazing side of the valve when the valve is in the seated position. The liquid line valve is not a back seating valve (see WARNING below). LINES lines make certain that all joints units have provisions way to run the lines. types of bends to be made and space limitations. NOTE: Large diameter tubing has been shaped. 3. C. iNSTALLiNG the most practical for braze connections. Pressure taps are provided on the service valves unit for compressor suction and liquid pressures. of outdoor The indoor end of the recommended refrigerant line sets may be straight or with a 90 degree bend, depending upon situation requirements. This should be thoroughly checked out before ordering refrigerant line sets. The gas line must always be insulated. In scroll compressor applications, dome temperatures may be hot. Do not touch top of compressor, may cause minor to severe burning. The units are factory charged with the system charge required when using fifteen (15) feet of rated connecting line. Unit nameplate charge is with twenty-five (25) feet of line set. © 2007 American Standard inc. All Rights Reserved Extreme caution should be exercised when opening the Liquid Line Service Valve. Turn valve stem counterclockwise only until the stem contacts the rolled edge. (See Figure 3.) No torque is required. Failure to follow this warning will result in abrupt release of system charge and may result in personal injury and/or property damage. BRASS GAS LINE BALL SERVICE VALVE The Brass Gas Line Ball Service Valve is shipped in the closed position to hold the factory refrigerant charge. The pressure tap service port (when depressed) opens only to the field brazing side when the valve is in the closed position. The Gas Line Ball Service Valve is full open with a 1/4 turn. See Figure 4. BRAZING REFRIGERANT LINES 1. Remove lower access cover to access service valves. 2. Before brazing, remove plugs from external copper stub tubes. Clean internal and external surfaces of stub tubes prior to brazing. 3. Cut and fit tubing, 90 ° bends. 4. Insulate minimizing the use of sharp the entire gas line and its fittings. 18-AC51 D1-4 |nsta||er's 3. Attach LIQUID LINE SERVICE VALVE ROLLED EDGE TO ;TEM 5, _ hose of manifold gauges to vacuum 4. Evacuate until the micron gauge reads no higher 350 microns. CAP-_=.UNIT SIDE OF SERVICE VALVE center Guide HEX HEADED VALVE SYSTEM 6, pump. than Close offvalve to vacuum pump and observe the micron gauge. If gauge pressure rises above 500 microns in one (1) minute., then evacuation is incomplete, or wstem has a leak. If vacuum gauge does not rise above 500 microns one (1) minute, the evacuation should be complete. in 7. Blank off vacuum pump and micron gauge, close valves on manifold gauge set. SERVICE PORT NOTE: DO NOT VENT REFRIGERANTINTO THEATMOSPHERE. LIQUID LINE CONNECTION 5. Do NOT allow uninsulated contact with bare gas line. liquid line to come in direct 6. Precautions should be taken to avoid heat damage to the pressure tap valve core during brazing. It is recommended that the pressure tap port valve core be removed and a wet rag wrapped around the valve body. NOTE: Use care to make sure that no moisture port, while wet rag is being used. enters pressure tap NOTE: Precautions should be taken to avoid heat damage to basepan during brazing. It is recommended to keep the flame directly off of the baeepan. 7. Use a Dry Nitrogen Purge and Brazing Alloy without flux when brazing the field line to the copper factory connection. Flow dry nitrogen into either valve pressure tap port, thru the tubing and out the other port while brazing. 8. Braze using accepted good brazing techniques. LEAK CHECK iMPORTANT: Replace pressure tap port valve core before attaching hoses for evacuation. NOTE: A 3/16"Allen wrench is required to open liquid line service valve. A 1/4" Open End or Adjustable wrench is required to open gas line valve. A 3/4" Open End wrench is required to take off the valve stem cap. 8. The liquid line shut-offvalve can now be opened. Remove shut-off valve cap. Fully insert hex wrench into the stein and backout counterclockwise until vane stem just touches rolled edge (approximately five [5] turns) observing WARNING statement on page 2. See Figure 3. 9. Replace liquid service pressure tap port cap and valve stem cap. These caps MUST BE REPLACED to prevent leaks. Replace valve stem cap and pressure tap cap finger tight, then tighten an additional 116turn. 10. The gas valve can now be opened. Open the gas valve by removing the shut-off valve cap and turning the valve stem 1/4 turn counterclockwise, using 1/4" Open End or Adjustable wrench. See Figures 4 and 5. 11. The gas valve is now open for refrigerant flow. Replace valve stem cap to prevent leaks. Again, these caps © GAS LINE BALL SERVICE VALVE CAP _._ J--| 114 TURN FOR After the brazing operation of refrigerant lines to both the outdoor and indoor units is completed, the field brazed connections must be ehecked for leaks. Pressurize through the serviee valve ports, the indoor unit and field refrigerant lines with dry nitrogen to 350-400 psi. Use soap bubbles or other leak-checking methods to see that all field joints are leak-free! If not, release pressure; then repair! TAPPORT / GAS 1. Upon completion of leak check, evacuate the refrigerant lines and indoor coil before opening the gas and liquid line valves. 2. Attach appropriate hoses from manifold and liquid line pressure taps. gauge to gas NOTE: Unnecessary switching of hoses can be avoided and complete evacuation of all lines leading to sealed system can be accomplished with manifold center hose and connecting branch hose to a cylinder of R-410A and vacuum pump. 18-AC51 D1-4 OPEN VALVE STEM PRESSURE charge, the gas and FULL UNIT SIDE OF VALVE SYSTEM EVACUATION NOTE: Since the outdoor unit has a refrigerant fiquid line valves must remain closed. ONLY COUNTERCLOCKWISE @ LINE CONNECTION GAS LINE SERVICE VALVE ROLLED EDGE TO CAPTIVATE STEM CAP_ UNIT SERVICE SIDE @ OF _ HEXHEADED VALVE SYSTEM VALVE SERVICE_ PORT / GAS LINE CONNECTION 3 |nsta||er's Guide MUST BE REPLACED stem cap and pressure an additional 1/6 turn. to prevent leaks. Replace valve tap cap finger tight, then tighten See Figures 4 and 5. If refrigerant lines are longer than fifteen (15) feet and/or a different size than recommended, it will be necessary to adjust system refrigerant charge upon completion of installation. See page 6 or the unit Service Facts. E. ELECTRICAL CONNECTIONS When installing or servicing this equipment, ALWAYS exercise basic safety precautions to avoid the possibility of electric shock. 1. Power wiring and grounding with local codes. of equipment 2. Power supply must agree with equipment 3. Install 4. Ground a separate the outdoor disconnect must comply nameplate. switch at the outdoor unit. unit per local code requirements. 5. Provide flexible electrical conduit whenever vibration transmission may create a noise problem within the structure. 6. The use of color coded low voltage wire is recommended to simplify connections between the outdoor unit, the thermostat and the indoor unit. Table 1 -- NEC Class II Control Wiring 8. Mount the indoor thermostat in accordance with instruction included with the thermostat. Wire per appropriate hook-up diagram (included in these instructions). F. COMPRESSOR G. OPERATIONAL AND CHECKOUT PROCEDURES Final phases of this installation are the unit Operational and Checkout Procedures which are found in this instruction (see table below and pages 6 and 8). To obtain proper performance, all units must be operated and charge adjustments made in accordance with procedures found on page 6 and in the Service Facts. IMPORTANT: Perform a final un# inspection to be sure that factory tubing has not shifted during shipment. Adjust tubing ff necessary so tubes do not rub against each other when the unit runs. Also be sure that wiring connections are tight and wire routing is secure. H. SEACOAST 24 VOLTS WIRE SIZE MAX. WIRE LENGTH 18 AWG 150 FT 16 AWG 225 FT. 14 AWG 300 FT. START-UP After all electrical wiring is complete, SET THE THERMOSTAT SYSTEM SWITCH IN THE OFF POSITION SO COMPRESSOR WILL NOT RUN, and apply power by closing the system main disconnect switch. This will activate the compressor sump heat (where used). Do not change the Thermostat System Switch until power has been applied for one (1) hour. Following this procedure will prevent potential compressor overload trip at the initial start-up. SHIELD Units installed -within one (1) mile of salt water, including seacoasts and inland waterways, require the addition of BAYSEAC001 (Seacoast Kit) at the time of installation. IMPORTANT: See Limited Warranty information in Use and Care Manual 7. Table i defines maximum total length of low voltage wiring from outdoor unit, to indoor unit, _md to thermostat. I. TROUBLESHOOTING TROUBLESHOOTING CHART -- WHAT TO CHECK SYSTEM FAULTS REFRIGERANT CIRCUIT LiquidPressure TooHigh LiquidPressure TooLow Suction Pressure TooNigh Suction Pressure TooLow LiquidRefrig, Floodback TXVSystem I,D,CoilFrosting Compressor RunsInadequate or NoCooling i ! i i i ! i PiPSPS iS R sP i ss iss s PiP sP i R i S PiS i RS i P i PiS SP iPS SPiS ELECTRICAL Compressor & O,D,FanDoNetstar Compressor Nil NotStartButO,D,FanRuns O,D,FanWon'tstar Compressor HumsButWon'tStart Compressor CyclesonIOL I,D,BoleerWraPt Start P- PrimaryCauses S-SecondaryCauses 4 18-AC51 D1-4 |nstaller's TYPICAL T 'STAT AiR HANDLER AI Guide FIELD HOOK=UP DIAGRAMS CONDITIONER T 'STAT VARIABLE SPEED AIR HANDLER F-_ E!i]--- AI CONDI] lONER _"-..... R ...... y G r-_ r_ ODT .... [21 r-_ Ot_T A .OPT29_A2 .q_M__O__ _ ....... B r-_ _[/'" B '_"[--'B PRINTED FROM B152901 P02 PRINTED FROM BIB2908P03 CONNECTIONS TO BE MADE FOR OPERATION OF BLOWERWITH HUMID}STAT IN COOLING I -STAGE OR 2-STAGE FURNACE [ 'S IAT VARIABLE SPEED 2 STAGE FURNACE T 'STAT A AIR CONDITIONER COND ]IONEti r._FF_ E] -.[] [] _,'...... y _t===V [i3 NOTE,k NOTE ...... B [] Fq PRINTEDFROMB152903P02 PRI lED FROM BI52901P04 "kW2 present only on 2 stage thermostat and furnace Notes: LEGEND 1. Be sure power supply agrees with equipment nameplate. 2. Power wiring and grounding of equipment must comply with local codes. 3. Low voltage wiring to be No. 18 AWG minimum conductor. 4. ODT-B must be set lower than ODT-A. ..... FACTORY WIRING 5. If outdoor thermostats -- FIELD WIRING 18-AC51 D1-4 (ODT) are not used, connect W1 to W2 and W3. 5 |nsta||er's SUBCOOLING Guide CHARGING iN COOLING Trane has always recommended installing matched indoor and outdoor systems. All Trane systems. split systems are ARI rated Trane ABOVE 55°F OD AMBIENT approved with only TXV indoor The benefits of installing approved indoor and outdoor split systems are maximum efficiency, optimum performance and the best overall system reliability. 2. For best results - the indoor temperature should be kept between 70°F to 80°F. Add system heat if needed. 3. At start-up, or -whenever charge is removed or added, the system must be operated for a minimum twenty (20) minutes to stabilize before accurate measurements can be made. 4. Measure Liquid Line Temperature and Refrigerant Pressure at service valves. 5. Determine total refrigerant line length, and height (lift) if indoor section is above the condenser. 6. Determine the Design Subcool Charging Temperature from the unit nameplate. 7. Locate this value in the appropriate column of the Subcooling Charging Table. Locate your liquid line temperature in the left column of the table, and the intersecting liquid line pressure under your nameplate subcool value column. Add refrigerant to raise the pressure to match SUBCOOL CHARGING 8. When system is correctly charged, you can refer to System Pressure Curves (in Service Facts) to verify typical performance. R=410A REFRIGERANT The following charging methods are therefore prescribed for systems with indoor TXVs. 1. Subcooling (in the cooling mode) is the recommended method of charging above 55°F ambient temperatures. the table, or remove refrigerant to lower the pressure. Again, -wait twenty (20) minutes for the system conditions to stabilize before adjusting charge again. LIQUID TEMP (°F) 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 DESIGN CHARGING CHART SUBCOOLING (°F) 8 I 9 ! lo 111 ! 12113 LIQUID 179 195 211 229 247 267 287 309 331 355 381 407 435 464 495 182 198 215 232 251 271 291 313 336 360 386 413 441 470 501 GAGE 185 201 218 236 255 275 296 318 341 365 391 418 446 476 507 PRESSURE 188 204 222 240 259 279 300 322 346 370 396 424 452 482 514 I 14 (PSI) 191 208 225 243 263 283 304 327 351 376 402 429 458 488 520 195 211 229 247 267 287 309 331 355 381 407 435 464 495 527 198 215 232 251 271 291 313 336 360 386 413 441 470 501 533 Refer to Service Facts or Installer's Guide for charging method. From Dwg. D154557P01 TABLE CORRECTIONS Rev. 2 FOR LINE LENGTH AND RISE E0 50 ZLU
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