Carrier 25HCD- Manuals

Page 2 - CAUTION; Check Equipment and Job Site; Unpack Unit; Install on a Solid, Level Mounting Pad; Clearance Requirements; NOTE; Operating Ambient

2 INSTALLATION CUT HAZARD Failure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing and gloves when handling parts. CAUTION ! Check Equipment and Job Site Unpack Unit Move to final location. Remove ...

Page 3 - Make Piping Connections; WARNING; Residential Piping and Long Line; Outdoor Unit Connected To Factory Approved Indoor

3 Table 1 – Accessory Usage Accessory REQUIRED FOR LOW–AMBIENT COOLING APPLICATIONS (Below 55  F / 12.8  C) REQUIRED FOR LONG LINE APPLICATIONS* REQUIRED FOR SEA COAST APPLICATIONS (Within 2 miles / 3.22 km) Accumulator Standard Standard Standard Ball Bearing Fan Motor Yes { No No Compressor Start...

Page 4 - Installing with Indoor Piston; Evacuate Refrigerant Tubing and Indoor Coil; Deep Vacuum Method; Final Tubing Check

4 Table 2 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (In.) UNIT SIZE LIQUID RATED VAPOR Connection Diameter Tube Diameter Connection Diameter Tube Diameter 18, 24 3/8 3/8 5/8 5/8 30, 36 3/8 3/8 3/4 3/4 42, 48 3/8 3/8 7/8 7/8 60 3/8 3/8 7/8 1–1/8 * Units are rated with ...

Page 5 - Make Electrical Connections; Route Ground and Power Wires; Connect Control Wiring

5 Make Electrical Connections ! WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.Do not supply power to unit with compressor terminal box cover removed. NOTE : Use copper wire only between disconnect switch and unit. NOTE : Install branch circui...

Page 6 - Final Wiring Check; Compressor Crankcase Heater; Follow these steps to properly start up system:

6 Final Wiring Check IMPORTANT : Check factory wiring and field wire connections to ensure terminations are secured properly. Check wire routing toensure wires are not in contact with tubing, sheet metal, etc. Compressor Crankcase Heater When equipped with a crankcase heater, furnish power to heater...

Page 7 - Table 4 – Defrost Control Speedup–Timing Sequence; Check Charge; Units with Cooling Mode TXV

7 OUTDOOR FAN RELAY Y OUTPUT TO PRESSURE SWITCHES AND CONTACTOR THERMOSTAT INPUTS T1 - ENABLES DEFROST TIMER.MUST BE ENERGIZED FOR DEFROST TIMER TO START C - COMMON O - REVERSING VALVE SPEEDUP HK32EA001 DEFROST THERMOSTAT MUST BE CLOSED BEFORE DEFROST TIMER BEGINS A05332 Fig. 11 -- Defrost Control T...

Page 9 - Table 5 – Additional Subcooling Required – 13 & 14 SEER Units

9 Table 5 – Additional Subcooling Required – 13 & 14 SEER Units Indoor Unit Subcooling Delta from Rating Plate Value Outdoor Unit Tonnage 018 024 030 036 042 048 060 CAP**1814A** –– CNPV*1814A** –– FB4CNF018+TXV –– FF1ENP(018/019) –– FX4DNF019 +3 CAP**24**A** +3 +3 CNP**24**A** +3 +3 CSPH*2412A*...

Page 10 - Table 6 – Additional Subcooling Required – 15 SEER Units

10 Table 6 – Additional Subcooling Required – 15 SEER Units Indoor Unit Subcooling Delta from Rating Plate Value OUTDOOR UNIT TONNAGE 018 024 030 036 042 048 060 CAP**1814A** –– CNPV*1814A** –– FB4CNF018+TXV –– FF1ENP(018/019) –– FX4DNF019 –– CAP**24**A** –– –– CNP**24**A** –– –– CSPH*2412A** –– –– ...

Page 11 - Table 7 – Required Liquid Line Temperatures; Table 8 – Superheat Charging (Heat Pump Only); Table 9 – Required Suction–Line Temperature

11 Table 7 – Required Liquid Line Temperatures _ F LIQUID PRESSURE AT SERVICE VALVE (PSIG) REQUIRED SUBCOOLING TEMPERATURE (° F) 8 10 12 14 16 18 251 76 74 72 70 68 66 259 78 76 74 72 70 68 266 80 78 76 74 72 70 274 82 80 78 76 74 72 283 84 82 80 78 76 74 291 86 84 82 80 78 76 299 88 86 84 82 80 78 ...

Page 12 - FINAL CHECKS; IMPORTANT; CARE AND MAINTENANCE; warnings

12 FINAL CHECKS IMPORTANT : Before leaving job, be sure to do the following: 1. Ensure that all wiring is routed away from tubing and sheet metal edges to prevent rub–through or wire pinching. 2. Ensure that all wiring and tubing is secure in unit before adding panels and covers. Securely fasten all...

Manuals:

User Manual Carrier 25HCD

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Carrier Manuals