Trane Axiom VSHE024 Operating And Maintenance Download Page 61

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Troubleshooting

WSHP-SVX13C-EN

Compressor Drive

Troubleshooting

The variable-speed compressor drive includes internal

protection functions that limit the compressor operation,
or in some cases, disable compressor operation

completely. In an event occurs that causes the compressor
operation to shut down, the compressor drive sends a
binary signal to the VSPD WSHP UC400 controller and a
diagnostic is generated. Refer to

Table 59, p. 61

for the

correct DIP switch settings for each unit.The DIP switches
are located on the interface module located in the
compressor drive assembly.

High head pressure

Trash in heat exchanger

Backflush

Low water flow

Increase GPM

Overcharge of refrigerant

Decrease charge

Non-condensable in system

Evacuate and recharge by weight

Water too hot

Decrease temperature

Dirty filter

Clean/replace

Inadequate air flow

Check, clean blower and coil

Low suction pressure

Undercharged

Locate leak; repair and recharge

Restricted thermal expansion valve

Repair / replace

Inadequate air flow

Check, clean blower and coil

Dirty filter

Clean/replace

Inadequate GPM

Increase GPM

Low pressure switch open

Inadequate GPM

Increase GPM

Water too cold

Increase temperature

Inadequate air flow

Increase CFM

Dirty filter

Clean/replace

Undercharged with refrigerant

Increase charge

Defective pressure switch

Replace

Heat transfer fluid too cold

Raise water temperature

Problem

Heating Cooling

Cause

Correction

Table 59.

DIP switch settings

Model

Voltage

SW1

SW2

SW3

SW4

SW5

SW6

VSVE024/033

208/60/1

OFF

230/60/1

OFF

460/60/3

OFF

VSVE042/050/060

208/60/1

OFF

230/60/1

OFF

460/60/3

OFF

VSHE024/033

208/60/1

OFF

230/60/1

OFF

460/60/3

OFF

VSHE042/050/060

208/60/1

OFF

230/60/1

OFF

460/60/3

OFF

Summary of Contents for Axiom VSHE024

Page 1: ...ted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels th...

Page 2: ...cates a potentially hazardous situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could re...

Page 3: ...d to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respective owners...

Page 4: ...Return Pipe Connections 41 Cleaning and Flushing the Water Loop 42 Field Installed Power Wiring 43 Main Unit Power Wiring 43 Control Power Transformer 43 Sensor Location 43 Installation of the Axiom...

Page 5: ...ssures 54 Water Pressure Drop 58 Water Volume 58 Maintenance 59 Preventive Maintenance 59 Condensate Trap 59 Troubleshooting 60 General Unit Troubleshooting 60 Compressor Drive Troubleshooting 61 Pres...

Page 6: ...o NickelWater Coil and Suction Lines Digit 10 11 Current Design Sequence Digit 12 ControlType F UC400 Digit 13 Freeze Protection A 20 F low temperature geothermal B 35 F Digit 14 Sales Order Special 0...

Page 7: ...eneath the unit Cover the unit s with a water proof tarp to protect them from the elements Make provisions for continuous venting of the covered units to prevent moisture from standing on the unit s s...

Page 8: ...re System Input Devices and Functions A zone sensor or building automation system is required to operate the water source heat pump The flexibility of having several mode capabilities depends upon the...

Page 9: ...equirements prior to unit installations The installer is responsible for compliance with local and NEC code requirements Note Units in a free return application will require more than a 1 inch clearan...

Page 10: ...C D E F G H J K L M W I NPTI W O NPTI Drain FPT 024 033 24 1 2 41 7 8 26 1 2 18 3 1 4 5 3 4 9 1 2 20 23 10 1 2 13 1 2 3 16 3 4 3 4 3 4 042 050 26 1 2 46 7 8 30 1 2 18 4 1 4 2 9 1 2 24 1 4 27 7 8 13 7...

Page 11: ...l data left return top supply VSV060 with ECM Units A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 060 26 62 30 1 2 13 1 4 13 5 8 5 13 39 3 4 30 3 8 13 8 5 8 N A 1 1 3 4 Note Access to the unit f...

Page 12: ...A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 024 033 24 1 2 41 7 8 26 1 2 18 3 1 4 1 7 8 9 1 2 20 23 10 1 2 13 1 2 3 16 3 4 3 4 3 4 042 050 26 1 2 46 7 8 30 1 2 18 4 1 4 2 9 1 2 24 1 4 27 7 8...

Page 13: ...data left return back supply VSV060 with ECM Units A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 060 26 62 30 1 2 13 1 4 13 5 8 5 6 1 2 39 3 4 30 3 8 13 8 5 8 N A 1 1 3 4 Note Access to the unit...

Page 14: ...B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 024 033 24 1 2 41 7 8 26 1 2 18 3 1 4 5 3 4 9 1 2 20 23 10 1 2 13 1 2 3 16 3 4 3 4 3 4 042 050 26 1 2 46 7 8 30 1 2 18 4 1 4 2 9 1 2 24 1 4 27 7 8 13...

Page 15: ...data right return top supply VSV060 with ECM Units A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 060 26 62 30 1 2 13 1 4 13 5 8 5 7 7 8 39 3 4 30 3 8 13 8 5 8 N A 1 1 3 4 Note Access to the unit...

Page 16: ...D E F G H J K L M W I NPTI W O NPTI Drain FPT 024 033 24 1 2 41 7 8 26 1 2 673 18 3 1 4 1 7 8 9 1 2 20 23 10 1 2 13 1 2 3 16 3 4 3 4 3 4 042 050 26 1 2 46 7 8 30 1 2 18 4 1 4 2 9 1 2 24 1 4 27 7 8 13...

Page 17: ...data right return back supply VSV060 with ECM Units A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 060 26 62 30 1 2 13 1 4 13 5 8 4 1 1 2 39 3 4 30 3 8 13 8 5 8 N A 1 1 3 4 Note Access to the un...

Page 18: ...E F G H J K L M W I NPTI W O NPTI Drain FPT 024 033 24 1 2 66 3 32 26 1 2 18 3 1 4 7 23 32 9 1 2 20 23 N A N A 1 4 3 4 3 4 3 4 042 050 26 1 2 71 3 32 30 1 2 18 4 1 4 5 23 32 9 1 2 24 1 4 27 7 8 N A N...

Page 19: ...ft return top supply VSV060 with plenum fan Units A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 060 26 86 1 4 30 1 2 18 N A 4 7 3 4 39 3 4 30 3 8 N A N A N A 1 1 3 4 Note Access to the unit for...

Page 20: ...F G H J K L M W I NPTI W O NPTI Drain FPT 024 033 24 1 2 66 3 32 26 1 2 18 3 1 4 7 23 32 9 1 2 20 23 N A N A 1 3 4 3 4 3 4 3 4 042 050 26 1 2 71 3 32 30 1 2 18 4 1 4 5 23 32 9 1 2 24 1 4 27 7 8 N A N...

Page 21: ...ght return top supply VSV060 with plenum fan Units A B C D E F G H J K L M W I NPTI W O NPTI Drain FPT 060 26 86 1 4 30 1 2 18 N A 4 7 3 4 39 3 4 30 3 8 N A N A N A 1 1 3 4 Note Access to the unit for...

Page 22: ...left return back supply Units A B C D E F x G H J K L M W I NPTI W O NPTI Drain FPT 024 033 60 1 4 26 21 3 8 24 22 13 1 4 x 13 5 8 7 3 4 1 1 2 32 1 2 1 1 4 18 3 8 3 4 3 4 3 4 042 060 81 1 4 26 21 3 8...

Page 23: ...ft return right supply Units A B C D E F x G H J K L M W I NPTI W O NPTI Drain FPT 024 033 60 1 4 26 21 3 8 24 22 13 1 4 x 13 5 8 4 3 4 6 1 4 32 1 2 1 1 4 18 3 8 3 4 3 4 3 4 042 060 81 1 4 26 21 3 8 2...

Page 24: ...right return back supply Units A B C D E F x G H J K L M W I NPTI W O NPTI Drain FPT 024 033 60 1 4 26 21 3 8 24 22 13 1 4 x 13 5 8 5 1 4 6 1 4 32 1 2 1 1 4 18 3 8 3 4 3 4 3 4 042 060 81 1 4 26 21 3 8...

Page 25: ...eturn left supply Units A B C D E F x G H J K L M W I NPTI W O NPTI Drain FPT 024 033 60 1 4 26 21 3 8 24 22 13 1 4 x 13 5 8 4 7 8 1 1 2 32 1 2 1 1 4 18 3 8 3 4 3 4 3 4 042 060 81 1 4 26 21 3 8 25 1 2...

Page 26: ...5 0 264 800 0 278 826 0 292 853 1324 0 127 493 0 143 536 0 159 575 0 175 611 0 190 644 0 205 675 0 220 703 0 235 731 0 250 757 0 265 782 0 280 808 0 295 833 0 309 860 VSH042 CFM 0 0 05 0 1 0 15 0 2 0...

Page 27: ...5 821 0 231 851 0 246 880 0 261 908 0 274 935 1023 0 118 559 0 129 597 0 141 635 0 154 671 0 169 706 0 184 739 0 200 772 0 217 804 0 233 834 0 250 864 0 266 892 0 281 920 0 296 947 VSV033 CFM 0 0 05 0...

Page 28: ...0 986 1081 VSV060 CFM 0 0 05 0 1 0 15 0 2 0 25 0 3 0 35 0 4 0 45 0 5 0 55 0 6 kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM 1816 0 153 515 0 185 558 0 214...

Page 29: ...19 VSV 024 CFM 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM 847 0 272 1306 0 291 1348 0 310 1388 0 329 1426 0 349 1464 0 369...

Page 30: ...5 1417 VSV 033 CFM 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM 1091 0 336 1388 0 358 1427 0 380 1465 0 402 1501 0 425 1536...

Page 31: ...458 1477 VSV 042 CFM 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM 1491 0 402 1414 0 429 1453 0 456 1491 0 483 1527 0 511 156...

Page 32: ...0 525 1558 VSV 050 CFM 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM 1708 0 456 1478 0 485 1514 0 513 1550 0 542 1586 0 571...

Page 33: ...0 418 1548 VSV 060 CFM 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM 1816 0 359 1449 0 382 1486 0 405 1521 0 428 1556 0 452...

Page 34: ...1517 0 10 0 12 1704 0 12 0 14 1890 0 13 0 16 1983 0 14 0 17 2077 0 15 0 18 VSH060 1890 0 13 0 16 2016 0 14 0 17 2120 0 15 0 18 2225 0 16 0 19 2329 0 17 0 21 Note Added pressure drop should be conside...

Page 35: ...079 0 19 0 23 VSV060 1900 0 14 0 16 2021 0 15 0 17 2121 0 16 0 19 2221 0 17 0 20 2321 0 18 0 21 Notes Added pressure drop should be considered when utilizing optional 2 MERV 8 and MERV 13 filters Tabl...

Page 36: ...combination 2 Right return air with back supply air combination 3 Left return air with top supply air combination 4 Left return air with back supply air combination UNIT FRONT 1 UNIT FRONT 2 UNIT FRON...

Page 37: ...26 1 2 26 1 2 30 1 2 30 1 2 30 1 2 Height inch 41 7 8 41 7 8 46 7 8 46 7 8 62 1 2 Height inch 66 3 32 66 3 32 71 3 32 71 3 32 86 1 4 Width inch 24 1 2 24 1 2 26 1 2 26 1 2 26 Compressor type Rotary R...

Page 38: ...Ground Loop full load 68 F for Ground Loop part load and 59 F for Ground Water Entering liquid temperature in heating is 68 F for Water Loop 32 F for Ground Loop full load 41 F for Ground Loop part l...

Page 39: ...nel components tighten any loose connections 10 Connect properly sized and protected power supply wiring to a field supplied installed disconnect switch and to the power block 11 Install proper ground...

Page 40: ...seal from the duct to the unit is possible The 1 inch duct panel facilitates ease of field connection to the mechanical system This accessory is typically used when the return air filter is placed up...

Page 41: ...pressure trapping In a properly trapped system when condensate forms during normal operation the water level in the trap rises until there is a constant flow It is imperative to maintain water in the...

Page 42: ...he flexible hose connectors should be disconnected from the unit and linked together using field supplied couplings avoiding trash settle out in the condenser An extra pipe may be necessary to connect...

Page 43: ...g 24 VAC WARNING Proper Field Wiring and Grounding Required All field wiring MUST be performed by qualified personnel Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazard...

Page 44: ...per negative pressure trapping in consideration of the unit s draw through design With this properly trapped system when condensate forms during normal operation the water level in the trap rises unt...

Page 45: ...6 1 4 2 1 1 86 1 1 7 11 15 VSH050 208 60 1 20 5 17 8 1 2 69 1 1 24 94 40 230 60 1 20 5 17 8 1 2 69 1 1 24 94 40 460 60 3 7 5 5 0 1 2 48 1 1 8 73 15 VSH060 208 60 1 25 8 21 8 1 4 03 1 1 31 28 50 230 60...

Page 46: ...essors Blower Motor FLA Blower Motor hp Fan Motor Num Minimum Circuit Ampacity Maximum Overcurrent Protective Device VSV 024 460 60 3 4 7 2 9 1 1 80 4 1 5 43 15 VSV 033 460 60 3 6 0 4 2 1 1 80 4 1 7 0...

Page 47: ...Binary Outputs Relay b BO1 Supply Fan On Off Control 2 88 A 24 Vac pilot duty Energized De Energized BO2 Isolation Valve Energized De Energized BO3 Compressor 1 Energized De Energized Binary Outputs T...

Page 48: ...nt Low Limit 40 to 115 F 40 F Humidity Setpoint 40 100 60 Table 45 UC400 setup parameters Input Name Range Default Device Occupancy Request Source Local Source BAS Local Source Heat Cool Mode Request...

Page 49: ...njunction with the occupied and standby offsets Default 1 5 F and 7 5 F respectively The local occupied zone setpoints will be calculated as follows depending on the occupancy status of the unit Cooli...

Page 50: ...input and is used to return a unit operating in occupiedbypassmodebackintoUnoccupiedmodebefore the occupancy bypass timer has expired Supply fan mode operation Variable speed WSHP units can be set up...

Page 51: ...by default the UC400 will control as though isolation valves are present Isolation Valve ON Control The isolation valve output will be energized prior to the compressor controlled open during active c...

Page 52: ...perating modes the reversing valve does not change states until the compressor is energized and reaches its startup speed Cooling and Heating Operation For normal cooling and heating operation the uni...

Page 53: ...Clearance Dimensions p 9 Are the low high side pressure temperature caps secure and in place Are all the unit access panels secure and in place Is the water flow established and circulating through al...

Page 54: ...leaving the heat exchanger should be noted The blower and compressor operation should be smooth with no frost observed on the refrigeration circuit 9 Check the heating refrigerant pressures against va...

Page 55: ...2 194 247 11 15 19 24 114 131 287 365 7 9 22 31 55 8 6 124 142 188 239 9 12 19 24 115 133 289 368 6 7 22 32 65 6 9 125 144 221 281 11 14 18 24 126 145 302 384 8 10 25 35 65 8 6 125 144 214 273 9 12 18...

Page 56: ...24 167 192 369 470 11 14 37 48 85 15 6 127 147 282 359 9 11 18 24 173 199 376 478 9 12 38 49 95 12 5 130 149 329 419 11 14 18 24 95 15 6 129 149 322 409 9 11 18 24 Table 48 Operating pressures in coo...

Page 57: ...155 242 308 11 14 18 24 150 172 326 415 10 13 28 38 75 10 9 134 154 236 300 9 11 18 24 155 178 331 421 8 11 28 39 85 8 7 137 158 277 352 11 14 18 24 170 196 346 441 11 14 31 42 85 10 9 137 157 270 344...

Page 58: ...Temp F Water Flow GPM Suction Pressure PSIG Discharge Pressure PSIG Water Temp Rise F Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Water Temp Drop F Air Temp Rise F DB Table 50 Co...

Page 59: ...rap a seal will be created and will help prevent these complications The condensate trap must be field installed Note When maintenance is performed on this unit care should be taken not to damage the...

Page 60: ...fective zone sensor Replace X X Transformer Reset Transformer Unit short cycles X X Zone sensor improperly located Relocate Blower runs but compressor does not X X Supply Voltage too low Correct X X D...

Page 61: ...Low suction pressure X X Undercharged Locate leak repair and recharge X X Restricted thermal expansion valve Repair replace X Inadequate air flow Check clean blower and coil X Dirty filter Clean repla...

Page 62: ...This procedure will have been performed at the factory and generally will not be needed in the field To perform this procedure the power on to the transducer must be on but the pressure probe tubing m...

Page 63: ...WSHP SVX13C EN 63 Control Wiring Figure 32 208V single phase wiring with ECM option...

Page 64: ...Control Wiring 64 WSHP SVX13C EN Figure 33 460V three phase wiring with ECM option...

Page 65: ...d wiring by others Field writing to be rated for 600V Dashed line enclosure and or dashed device outlines indicate components provided by the field Solid lines indicate wiring by the Trane company Num...

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Page 68: ...controls and HVAC systems comprehensive building services and parts For more information visit www Trane com Trane has a policy of continuous product and product data improvement and reserves the righ...

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