Bryant Gt 024 Installation Instructions Manual Download Page 32

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ECM Const CFM Motor

Models

Fan

Speed

Rated

Airflow Adjust Tap

External Static Pressure (in of Water)

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00

GT024

Part Load

725

Med

650

Normal

650

Low

500

GT024

Full Load

950

Med

825

Normal

825

Low

725

GT036

Part Load

950

Med

800

Normal

800

Low

750

GT036

Full Load

1300

Med

1100

Normal

1100

Low

950

GT048

Part Load

1400

Med

1300

Normal

1300

Low

1100

GT048

Full Load

1800

Med

1600

Normal

1600

Low

1400

GT060

Part Load

1800

Med

1600

Normal

1600

Low

1400

GT060

Full Load

2200

Med

2000

Normal

2000

Low

1800

GT072

Part Load

2100

Med

1850

Normal

1850

Low

1600

GT072

Full Load

2500

Med

2350

Normal

2350

Low

2100

Summary of Contents for Gt 024

Page 1: ...nd UPM Controller 10 ECM Interface Board 14 Constant Airflow Motor 17 Pump Relay 17 Comfort Alert Diagnostics Module CADM 17 FACTORY INSTALLED FEATURES 18 Smart Start Assist 18 Heat Recovery Package H...

Page 2: ...sult in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which would result in minor personal injur...

Page 3: ...r installation manuals for more specific instructions See Fig 2 Diagram shows typical installation and is for illustration purposes only Ensure access to Heat Pump is not restricted 1 Line Voltage Dis...

Page 4: ...er a cupronickel heat exchanger is recommended Copper is adequate for ground water that is not high in mineral content In well water applications water pressure must always be maintained in the heat e...

Page 5: ...will occur Corrosion Prevention pH All 6 8 5 Monitor treat as needed 6 8 5 Minimize steel pipe below 7 and no open tanks with pH 8 Hydrogen Sulfide H2S All At H S 0 2 ppm avoid use of copper and coppe...

Page 6: ...Verify that all items have been received and that there are no visible damages note any shortages or damages on all copies of the freight bill In the event of damage or shortage remember that the pur...

Page 7: ...A B C D NORM TEST YES HGRH NO CFM P1 OR GN BK YL BR WH P2 GY RD BL P13 GY PU J1 J2 J13 OR GN BK YL BR WH GY RD BL GY PU J14 WH BL OR BR YL J15 GY RD GN BK J17 GY PU BK WH GN YL L1 BK L2 WH J19 P19 CON...

Page 8: ...must be connected to the heat pump and pitched away from the unit a minimum of 1 8 per foot to allow the condensate to flow away from the unit IMPORTANT This connection must be in conformance with loc...

Page 9: ...should be used when connecting water piping connections to the units to insure against leaks and possible heat exchanger fouling NOTE The unit is shipped with water connection O rings A 10 pack of O r...

Page 10: ...he HPC terminals on the UPM S Low pressure switch located in the unit refrigerant suction line and wired across terminals LPC1 and LPC2 on the UPM NOTE UPM Board Dry Contacts are normally open NO S Wa...

Page 11: ...The Display output is a pulse output connected to the Unit Diagnostic Display UDD and it pulses 24VAC when the unit is in an lockout alarm condition S UPM TEST MODE UPM test mode will allow all time...

Page 12: ...20 248 389 17 1 81 700 29 84 8 409 75 167 1 480 121 250 379 16 3 77 190 30 86 8 057 76 169 1 432 122 252 370 15 5 72 960 31 88 7 722 77 171 1 386 123 253 360 14 7 68 980 32 90 7 402 78 172 1 341 124 2...

Page 13: ...YES T ASC OR RS SEC YES NO TIME 120 SEC START TIMER NO YES NO YES START ANTI SHORT CYCLE INITIAL POWER UP YES NO START RANDOM START UP START COUNTER NEEDED YES COUNT 2 OR COUNT 4 BLINK CODE ON STATUS...

Page 14: ...wer speed to increase dehumidification while cooling See Fig 14 A14126 Fig 14 Dehumidification Method Selector Thermostat Outputs Dry Contact Left side terminal strip in the stat D1 D2 YI First Stage...

Page 15: ...ssory Dehum Active Super Dehumidification Super Dehumidification should NOT be used with geothermal heat pumps Cor Housewise with Field Installed Relay If motor intermittently runs with no call refer...

Page 16: ...Y1 ON Y2 ON NO YES NO YES BLOWER RUNS RUNS IN PART LOAD CFM Y1 PERCENTAGE TIMES THE DE HUM PERCENT BLOWER RUNS RUNS IN PART LOAD CFM Y2 PERCENTAGE TIMES THE DE HUM PERCENT ECM CONTROL BOARD DE HUMIDI...

Page 17: ...ent air flow settings depending on the mode that the unit is operating i e heating cooling fan only hot gas reheat etc Refer to the ECM Interface Board section in this document for more information Pu...

Page 18: ...t Start Assist will start ramping function in the case k1 is closed The device can be reset at any time by removing power on L1 N connection When the power is reapplied the soft starter will start ram...

Page 19: ...ure to follow this caution may result in unit damage and or improper equipment operation If heat recovery unit is installed in an area where freezing may occur the unit must be drained during winter m...

Page 20: ...ter with a minimum of 3 8 10mm closed cell insulation Initial Start Up CAUTION UNIT DAMAGE AND OR OPERATION HAZARD Failure to follow this caution may result in unit damage and or improper equipment op...

Page 21: ...hermostat is satisfied the compressor shuts down and the fan ramps down to either FAN ONLY mode or OFF over a span of 30 seconds If thermostat has two different output points one for Auxiliary heat an...

Page 22: ...ature 4 Verify the heat pump is operating in the cooling mode 5 Turn the thermostat system switch to the OFF position The unit should stop running and the reversing valve should de energize 6 Leave th...

Page 23: ...RED 5 Brownout RED 6 Evaporator Freeze condition Compressor Ohms Model Start Winding Run Winding GT024 1 64 1 3 GT036 1 52 0 88 GT048 1 86 0 52 GT060 1 63 0 39 GT072 1 85 0 34 Tolerance 7 All resistan...

Page 24: ...oad open If the compressor is cool and the overload will not reset replace compressor Compressor motor grounded Internal winding grounded to the compressor shell Replace compressor If compressor burno...

Page 25: ...Refrigerant charge Low on refrigerant charge causing inefficient operation Compressor Check for defective compressor If discharge is too low and suction pressure is too high compressor is not pumping...

Page 26: ...rcuit in compressor supply wiring or connections 6 Unusually long compressor protector reset time due to extreme ambient temperature 7 Compressor windings are damaged Check compressor motor winding re...

Page 27: ...97 3 4 13 14 8 80 97 249 304 2 3 13 15 40 4 125 151 180 221 14 18 19 22 89 108 255 312 4 5 15 17 8 120 146 169 207 8 10 20 23 93 113 261 320 3 3 16 18 50 4 134 163 211 258 14 18 18 21 106 118 267 327...

Page 28: ...111 263 322 3 3 16 19 50 4 5 131 160 214 261 14 18 18 22 95 105 269 329 5 6 17 20 9 0 126 154 201 245 8 10 19 24 100 125 276 337 3 4 18 22 60 4 5 136 166 244 298 14 17 18 22 111 136 282 344 6 7 19 23...

Page 29: ...299 365 5 6 19 23 50 6 0 127 155 226 276 21 25 18 22 92 110 305 373 9 11 20 25 12 0 122 149 213 260 12 14 19 24 98 120 313 383 6 7 21 26 60 6 0 131 160 259 316 21 25 18 22 108 132 320 391 10 13 23 28...

Page 30: ...105 283 346 5 6 23 28 50 7 0 120 147 215 263 15 18 20 25 93 114 299 365 8 9 24 29 14 0 117 143 201 246 11 14 21 26 99 121 305 373 6 7 25 31 60 7 0 123 150 248 304 14 17 20 24 106 129 321 392 9 11 26...

Page 31: ...9 108 286 349 5 6 23 28 50 9 0 123 150 218 266 15 18 20 25 96 117 302 368 8 9 24 29 18 0 120 146 204 249 11 14 21 26 102 124 308 376 6 7 25 31 60 9 0 126 153 251 307 14 17 20 24 109 132 324 395 9 11 2...

Page 32: ...1300 1300 1300 1300 1300 1300 1300 Low 1100 A 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 GT048 Full Load Hi 1800 A 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 Med 1600 Normal A 1600 1600...

Page 33: ...36 9 0 0 3 1 5 4 6 2 2 0 09 7 1 0 2 3 5 7 9 4 5 0 22 0 3 0 9 5 5 0 1 12 7 5 0 35 GT048 9 0 0 1 1 6 8 1 8 0 17 6 2 0 7 2 0 1 12 3 7 0 35 8 4 0 9 4 4 1 16 6 2 0 61 GT060 7 1 0 1 1 5 7 10 1 9 0 26 9 3 0...

Page 34: ...igned to have a field configurable blower orientation end blow default and straight through See Fig 25 and Fig 26 A14034 Fig 25 End Blow Configuration default A14035 Fig 26 Straight Through Configurat...

Page 35: ...Removal A14037 Fig 28 Blower Motor Wring Ground Wire Location A14038 Fig 29 Screws Holding Bracket A14039 Fig 30 Screws Holding Blower Assembly A14040 Fig 31 Screws Holding Blower Bracket A14041 Fig 3...

Page 36: ...mbly 180 degrees with blower belly down and slide back into the cabinet See Fig 36 11 Reinstall bracket in the new vertical position using 2 screws See Fig 37 12 Reinstall bracket removed in step 3 us...

Page 37: ...lower housing See Fig 42 3 Remove and retain 4 screws under the blower collar See Fig 43 CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation...

Page 38: ...and retain remaining vertical blower bracket by re moving 2 screws See Fig 48 9 Remove the blower assembly by sliding it forward See Fig 49 NOTE Unit top is notched to allow blower to slide through A1...

Page 39: ...ower brackets in the new horizontal position using 4 screws See Fig 53 14 Secure the horizontal blower brackets to the unit base using 4 screws See Fig 54 15 Reconnect blower motor wiring and ground w...

Page 40: ...OPERATION HAZARD Failure to follow this caution may result in equipment damage or improper operation Discharge air configuration change is not possible on Heat Pumps equipped with Electric Heat Option...

Page 41: ...APPLIES IF OPTION IS INSTALLED 1 AIR COIL 2 E BOX UNIT FRONT 3 BLOWER X REQUIRED STEP FIELD INSTALLED PANEL KIT A150265 NOTE All heat pumps are supplied with panel belt which needs to be removed to ac...

Page 42: ...UP to SIDE discharge Reconfiguration to other side uses similar steps 1 Remove and retain diagonal support brackets on front and back sides of the unit See Fig 64 2 Unplug electrical connections of Bl...

Page 43: ...to avoid coil damage Shipping cardboard can be used as protection during blower removal and installation 6 Remove and discard blower collar See Fig 69 NOTE Discharge air configuration change is not p...

Page 44: ...ts in new orientation See Fig 73 11 Reinstall the blower assembly in the new desired location using the existing holes See Fig 74 CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result i...

Page 45: ...condensate drain connection from FRONT left corner post to BACK left corner post See Fig 77 A14090 Fig 77 Relocate Condensate Drain Connection front left corner to back left corner 1 Cut the condensat...

Page 46: ...ew location See Fig 81 A14093 Fig 80 Route Plastic Tube from Front Left to Back Left A14091 Fig 81 Relocate Condensate Drain Connection HRP Switch Relocation The HRP Pump Disconnect Switch is mounted...

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