Carrier Owners Manual - Enlarge page 1 of 2
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25HBC5 Baset Series Heat Pump with Puronr Refrigerant 1 1/2 To 5 Nominal Tons Wiring Diagrams CONNECTION DIAGRAM *CHS BLK or RED RED or BLK BLK *CH BLK CONT 11 23 EQUIP GND BLK BLK YEL BRN/YEL *LPS YEL/PNK * CH YEL/BLU RVS BLU/PNK *HPS BLU/PNK O O W2 R R Y BLK COMP BLU S H C R YEL YEL C F BRN CAP YEL BLU YEL +t° *ST BRN *SC OFM 1 2 5 *SR EQUIP GND BLU L1 SCHEMATIC DIAGRAM (LADDER FORM) CONT 11 21 5 2 1 *SR *SC H OFM OF2 C F CAP COMP R C S *ST +t° L2 208/230 1Ø POWER SUPPLY L1 L2 21 23 BLK * CHS DR OF1 CONT 23 23 *DTS RED YEL/PNK RED C DFT DFT LOGIC DR OF1 T1 C C O YEL/BLU BRN/YEL ORN RVS ORN Y Y DR T1 C *LPS *DTS *HPS CONT C LOGIC OF2 30 60 90 W1 C Y O W2 R CB YEL WHT BLK ORN RED SPEED UP DFT R HK32EA001 PNK PNK DFT SPEED UP 90 60 FIELD SELECTED TIME PERIOD 30 BETWEEN DEFROST CYCLES (MINUTES) JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE HEAT CYCLE: 90 MIN.
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ACCELERATED TO 21 SEC. 60 MIN. ACCELERATED TO 14 SEC. 30 MIN. ACCELERATED TO 7 SEC. DEFROST CYCLE: 10 MIN. ACCELERATED TO 2 SEC. C Y O W2 R E L W3 G C Y O W2 R E L INDOOR UNIT TERMINAL BLOCK CONDENSING UNIT CHARGING INSTRUCTIONS For use with units using R-410A refrigerant REQUIRED LIQUID LINE TEMPERATURE Liquid Pressure at Service Valve (psig) 251 259 266 274 283 291 299 308 317 326 335 345 354 364 374 384 395 406 416 427 439 450 462 474 G INDOOR THERMOSTAT (NOTE #5) -LEGENDFACTORY POWER WIRING FIELD POWER WIRING FACTORY CONTROL WIRING FIELD CONTROL WIRING CONDUCTOR ON CIRCUIT BOARD COMPONENT CONNECTION 1/4-INCH QUICK CONNECT TERMINALS FIELD SPLICE CAP *CH *CHS CONT CB DFT DR *DTS *HPS *LPS OFM RVS *SC *SR *ST JUNCTION CAPACITOR (DUAL RUN) CRANKCASE HEATER CRANKCASE HEATER SWITCH CONTACTOR CIRCUIT BOARD DEFROST THERMOSTAT DEFROST RELAY AND CIRCUITRY DISCHARGE TEMP. SWITCH HIGH PRESSURE SWITCH LOW PRESSURE SWITCH OUTDOOR FAN MOTOR REVERSING VALVE SOLENOID START CAPACITOR START RELAY START THERMISTOR NOTES: 1. COMPRESSOR AND FAN MOTOR FURNISHED WITH INHERENT THERMAL PROTECTION. 2. TO BE WIRED IN ACCORDANCE WITH NATIONAL ELECTRIC CODE (N.E.C.) AND LOCAL CODES. 3. N.E.C. CLASS 2, 24 V CIRCUIT, MIN. 40 VA REQUIRED, 60VA ON UNITS INSTALLED WITH LLS. 4. USE COPPER CONDUCTORS ONLY FROM DISCONNECT TO UNIT. 5. MUST USE THERMOSTAT AND SUB-BASE AS STATED IN PRE-SALE LITERATURE. 6. IF INDOOR SECTION HAS A TRANSFORMER WITH A GROUNDED SECONDARY, CONNECT THE GROUNDED SIDE TO “C ” ON THE CIRCUIT BOARD. 7. IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED, MUST BE REPLACED, USE THE SAME OR EQUIVALENT WIRE. 8. CHECK ALL ELECTRICAL CONNECTIONS INSIDE CONTROL BOX FOR TIGHTNESS. 9. DO NOT ATTEMPT TO OPERATE UNIT UNTIL SERVICE VALVES HAVE BEEN OPENED. 10. USE CONDUCTORS SUITABLE FOR AT LEAST 75ºC (167ºF). Required Subcooling Temperature.