Carrier PH4G-B Series Installation Instructions Manual
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Carrier PH4G-B Series Installation Instructions Manual

14 seer single-packaged heat pump system with r-410a refrigerant
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PH4G--B
14 SEER Single-Packaged Heat Pump System
with R-410A Refrigerant
Single Phase 2-5 Nominal Tons (Sizes 24-60)
Three Phase 3-5 Nominal Tons (Sizes 36-60)
IMPORTANT: Effective January 1, 2015, all split system and packaged
air conditioners must be installed pursuant to applicable regional
efficiency standards issued by the Department of Energy.
NOTE: Read the entire instruction manual before starting the
installation.
NOTE: Installer: Make sure the Owner's Manual and Service
Instructions are left with the unit after installation.

Table of Contents

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Special Procedures for 208-V Operation . . . . . . . . . . . . . . . . . . 9
Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Accessory Electric Heaters Installation . . . . . . . . . . . . . . . . . . . 9
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pre-Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 19
Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 19
Single Cooling Fan Speed Set-up (Dehumidification feature not
used) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
19
Continuous Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Defrost Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Defrost Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
R-410A Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 31
Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Check Defrost Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Start-Up Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Installation Instruction
5) . . . . . . . . . . . . . . . . . . . . . . 7
Fig. 1 - Unit PH4G

Safety Considerations

Installation and servicing of this equipment can be hazardous due to
mechanical and electrical components. Only trained and qualified
personnel should install, repair, or service this equipment.
Untrained personnel can perform basic maintenance functions such as
cleaning and replacing air filters. All other operations must be performed
by trained service personnel. When working on this equipment, observe
precautions in the literature, on tags, and on labels attached to or shipped
with the unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses, protective clothing, and
work gloves. Use quenching cloth for brazing operations. Have a fire
extinguisher available. Read these instructions thoroughly and follow all
warnings or cautions included in literature and attached to the unit.
Consult local building codes, the current editions of the National
Electrical Code (NEC) NFPA 70.
In Canada refer to the current editions of the Canadian Electrical Code
CSA C22.1.
Recognize safety information. This is the safety-alert symbol
you see this symbol on the unit and in instructions or manuals, be alert to
the potential for personal injury. Understand these signal words:
DANGER, WARNING, and CAUTION. These words are used with the
safety-alert symbol. DANGER identifies the most serious hazards which
will result 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 may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
A09183
. When

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  • Page 1: Table Of Contents

    PH4G--B 14 SEER Single-Packaged Heat Pump System with R-410A Refrigerant Single Phase 2-5 Nominal Tons (Sizes 24-60) Three Phase 3-5 Nominal Tons (Sizes 36-60) Installation Instruction IMPORTANT: Effective January 1, 2015, all split system and packaged air conditioners must be installed pursuant to applicable regional efficiency standards issued by the Department of Energy.

  • Page 2: Introduction

    1. Accessory kit number CPADCURB001A00, (small chassis) and WARNING accessory kit number CPADCURB002A00, (large chassis) includes roof curb adapter and gaskets for the perimeter seal and duct ELECTRICAL SHOCK HAZARD openings. No additional modifications to the curb are required when using this kit. Failure to follow this warning could result in personal injury or death.
  • Page 3 PH4G--B: Installation Instruction A150567 Fig. 2 – 24-30 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 4 PH4G--B: Installation Instruction A150568 Fig. 3 – 36-60 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 5 PH4G--B: Installation Instruction SMALL/COMMON CURB SMALL SUPPLY BASE UNIT LARGE BASE RETURN UNIT UNIT PLACEMENT ON COMMON CURB SMALL OR LARGE BASE UNIT LARGE CURB A180216 Fig. 4 – Roof Curb Dimensions B (small/common B (large UNIT CATALOG base) base) SIZE NUMBER IN.

  • Page 6: Inspection

    PH4G--B: Installation Instruction CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36"...

  • Page 7: Rigging/Lifting Of Unit (See Fig. 5)

    PH4G--B: Installation Instruction Rigging/Lifting of Unit (See Fig. Configuring Units for Downflow (Vertical) Discharge Lifting holes are provided in base rails as shown. WARNING 1. Attach shackles, clevis pins, and straps to the base rails of the unit. Be sure materials are rated to hold the weight of the unit (See ELECTRICAL SHOCK HAZARD Fig.

  • Page 8: High-Voltage Connections

    PH4G--B: Installation Instruction All units must have field-supplied filters or accessory filter rack accessory or is field-supplied. Make sure that the outlet of the trap is at installed in the return-air side of the unit. Recommended sizes for least 1 in. (25 mm) lower than the unit drain-pan condensate connection filters are shown in Table to prevent the pan from overflowing.

  • Page 9: Special Procedures For 208-V Operation

    PH4G--B: Installation Instruction Special Procedures for 208-V Operation The field-supplied disconnect may be mounted on the unit over the high-voltage inlet hole when the standard power and low-voltage entry WARNING points are used. See Fig. 2 Fig. 3 for acceptable location. Remove high voltage knockout.
  • Page 10 PH4G--B: Installation Instruction c. ELECTRIC HEATING MODE (1.) Thermostat closes circuits R to G, R to Y and R to W/W1 or (1.) Thermostat closes circuit R to W/W1, or W2 and R to G. W2. The compressor, indoor and outdoor fans are There are no on or off delays.
  • Page 11 PH4G--B: Installation Instruction INDOOR THERMOSTAT RETURN FROM TOP COVER POWER SOURCE DISCONNECT PER NEC* POWER ENTRY CONTROL ENTRY *NEC - National Electrical Code A09098 Fig. 11 – Typical Installation Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 12 PH4G--B: Installation Instruction A150518 Fig. 12 – Connection Wiring Schematics 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 13 PH4G--B: Installation Instruction A150519 Fig. 13 – Ladder Wiring Schematics 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 14 PH4G--B: Installation Instruction A150520 Fig. 14 – Connection Wiring Schematics - 208/230-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 15 PH4G--B: Installation Instruction A150521 Fig. 15 – Ladder Wiring Schematics - 208/230-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 16 PH4G--B: Installation Instruction A150522 Fig. 16 – Connection Wiring Diagram 460-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 17 PH4G--B: Installation Instruction A150523 Fig. 17 – Ladder Wiring Diagram 460-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

  • Page 18: Pre-Start-Up

    PH4G--B: Installation Instruction Pre-Start-Up FAN mode is placed in FAN ON position and shuts down when FAN MODE switch is placed in AUTO position. WARNING (2.) Thermostat: When the room temperature rises to a point that is slightly above the cooling control setting of the thermostat, the FIRE, EXPLOSION, ELECTRICAL SHOCK AND thermostat completes the circuit between thermostat ENVIRONMENTAL HAZARD...

  • Page 19: Checking And Adjusting Refrigerant Charge

    PH4G--B: Installation Instruction reversed to correct rotation. When turning backwards, the difference is more than 2°F (1.1°C) lower than required liquid line between compressor suction and discharge pressures may be near zero. temperature. Checking and Adjusting Refrigerant Charge NOTE: If the problem causing the inaccurate readings is a refrigerant leak, refer to Check for Refrigerant Leaks section.

  • Page 20: Single Speed Cooling With Higher Electric Heat Speed

    PH4G--B: Installation Instruction must open the control circuit on humidity rise above the 3. Select speed tap from Table 4 that will achieve required airflow dehumidification set point. from Table 1. Using Fig. 19, move the two pin DEHUM jumper from the “STD” 4.

  • Page 21: Defrost Control

    PH4G--B: Installation Instruction HIGH R13 C8 AB A15 D5 D3 R3 R5 R6 R W2 Y W3 W3 W2 W2 C SSTZ-8 A09059 Fig. 19 – Interface Fan Board (IFB) OUTDOOR COIL INDOOR COIL TXV in Bypass Position HP S Metering Position LEGEND...
  • Page 22 PH4G--B: Installation Instruction Table 4 – Dry Coil Air Delivery - Horizontal and Downflow Discharge - Sizes 24-60 208/230VAC - 1 Phase External Static Pressure (IN. W.C.) Motor Wire Unit Size Speed Color Blue 0.09 0.10 0.11 0.11 0.12 † Pink Med-Low 0.14...
  • Page 23 PH4G--B: Installation Instruction Table 4 – Dry Coil Air Delivery - Horizontal and Downflow Discharge - Sizes 24-60 208/230VAC - 1 Phase (Continued) External Static Pressure (IN. W.C.) Motor Wire Unit Size Speed Color 1378 1344 1295 1260 1216 1179 1135 1087 1035...
  • Page 24 PH4G--B: Installation Instruction Table 5 – Dry Coil Air Delivery - Horizontal Discharge - Sizes 36-60 3 Phase Models Only (Continued) External Static Pressure (IN. W.C.) Motor Wire Unit Speed Color Blue 1445 1389 1341 1281 1236 1189 1139 1072 1027 Med-Low Pink...
  • Page 25 PH4G--B: Installation Instruction Table 6 – Dry Coil Air Delivery - Downflow Discharge - Sizes 36-60 3 Phase Models Only (Continued) External Static Pressure (IN. W.C.) Motor Wire Unit Speed Color 1503 1457 1423 1374 1330 1287 1241 1199 1153 1111 Blue WATTS...
  • Page 26 PH4G--B: Installation Instruction Table 8 – Wet Coil Pressure Drop (IN. W.C.) Unit Standard CFM (SCFM) Size 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 0.03 0.04 0.04 0.05 0.06 0.05 0.06 0.07 0.08 0.11 0.06 0.06 0.09...

  • Page 27: Maintenance

    PH4G--B: Installation Instruction Maintenance Indoor Blower and Motor NOTE: All motors are pre-lubricated. Do not attempt to lubricate these To ensure continuing high performance, and to minimize the possibility motors. of premature equipment failure, periodic maintenance must be NOTE: 460 volt units have a stepdown autotransformer that supplies performed on this equipment.
  • Page 28 PH4G--B: Installation Instruction Superheat charging table is derived from optimum performance point. (95_F [35_C] outdoor ambient and (80_F [27_C] dry bulb; 67_F [19_C] wet bulb indoor condition.) Where a dash(--) appears do not attempt to check charge or charge unit under these conditions using the superheat method. (Weigh in method should be used.) A150625 To properly check or adjust charge, conditions must be favorable for subcooling charging.
  • Page 29 PH4G--B: Installation Instruction OUTDOOR FAN RELAY DEFROST THERMOSTAT MUST BE CLOSED BEFORE DEFROST TIMER BEGINS T1 - ENABLES DEFROST Y OUTPUT TO PRESSURE SWITCHES AND CONTACTOR TIMER.MUST BE ENERGIZED FOR DEFROST TIMER TO START C - COMMON O - REVERSING VALVE SPEEDUP THERMOSTAT INPUTS A150622...
  • Page 30 PH4G--B: Installation Instruction Step 6 – Indoor Airflow The heating and/or cooling airflow does not require checking unless improper performance is suspected. If a problem exists, be sure that all supply-air and return-air grilles are open and free from obstructions, and that the air filter is clean.

  • Page 31: Refrigerant

    PH4G--B: Installation Instruction Step 9 – Loss of Charge Switch Refrigerant This switch is located on the liquid line and protects against low suction WARNING pressures caused by such events as loss of charge, low airflow across indoor coil, dirty filters, etc. It opens on a pressure drop at about 20 psig. PROPERTY HAZARD, PERSONAL INJURY OR If system pressure is above this, switch should be closed.

  • Page 32: Loss Of Charge Switch

    PH4G--B: Installation Instruction Step 13 – System Information FEEDER TUBE Loss of Charge Switch STUB TUBE The loss of charge switch is a protective device wired into control circuit (low voltage). It shuts off the compressor if abnormally low pressures are present in the refrigeration circuit.
  • Page 33 PH4G--B: Installation Instruction Table 11 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, or high-pressure, Replace component loss-of-charge or low-pressure switch Compressor and condenser fan will not start. Insufficient line voltage Determine cause and correct Incorrect or faulty wiring...
  • Page 34 PH4G--B: Installation Instruction Start-Up Checklist (Remove and Store in Job Files) I. PRELIMINARY INFORMATION MODEL NO.: ____________________________________________ SERIAL NO.: ____________________________________________ DATE: __________________________________________________ TECHNICIAN: ___________________________________________ II. PRESTART-UP (Insert check mark in box as each item is completed) ( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT ( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS ( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS ( ) CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE...

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