Carrier PHR5 Installation Instructions Manual

15+ seer2 2-stage packaged heat pump system with r-410a refrigerant single and three phase 2-5 nominal tons (sizes 24-60)

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PHR5
15+ SEER2 2-Stage Packaged Heat Pump System
with R-410A Refrigerant
Single and Three Phase
2-5 Nominal Tons (Sizes 24-60)
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.
Fig. 1 - Unit PHR5

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Special Procedures for 208-V Operation . . . . . . . . . . . . . . . . . 10
Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Standard Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pre-Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 13
Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 13
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Demand Defrost Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Outdoor Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Installation Instructions
5) . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Controls and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 26
Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Evaporator Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Metering Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
High-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Compressor Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Synthetic Roof Precautionary Procedure . . . . . . . . . . . . . . . . . 28
Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
R-410A Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 28
Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Check Defrost Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Start-up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Improper installation adjustment, alteration, service, maintenance, or use
can cause explosion, fire, electrical shock, or other conditions which
may cause death, personal injury, or property damage. Consult a
A09033
qualified installer, service agency, or your distributor or branch for
information or assistance. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this product Refer
to the individual instructions packaged with the kits or accessories when
installing.
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.

Safety Considerations

. When

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Summary of Contents for Carrier PHR5

  • Page 1: Table Of Contents

    Consult a A09033 Fig. 1 – Unit PHR5 qualified installer, service agency, or your distributor or branch for Table of Contents information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product Refer Table of Contents .
  • Page 2: Introduction

    Receiving and Installation WARNING Step 1 – Check Equipment Identify Unit ELECTRICAL SHOCK HAZARD The unit model number and serial number are printed on the unit Failure to follow this warning could result in personal injury or death. informative plate. Check this information against shipping papers. Before installing or servicing system, always turn off main power to Inspect Shipment system and install lockout tag.
  • Page 3: Slab Mount

    PHR5: Installation Instructions CAUTION UNIT/STRUCTURAL DAMAGE HAZARD Failure to follow this caution may result in property damage. Ensure there is sufficient clearance for saw blade when cutting the outer horizontal flange of the roof curb so there is no damage to the roof or flashing.
  • Page 4 PHR5: Installation Instructions A230206 Fig. 2 – PHR5 24 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 5 PHR5: Installation Instructions A230207 Fig. 3 – PHR5 36-60 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 6 PHR5: Installation Instructions SMALL/COMMON CURB SMALL SUPPLY BASE UNIT LARGE BASE RETURN UNIT UNIT PLACEMENT ON COMMON CURB SMALL OR LARGE BASE UNIT LARGE CURB A180216 (small/common UNIT CATALOG (large base) base) SIZE NUMBER IN. (mm) IN. (mm) (mm) IN. (mm)*...
  • Page 7: Inspection

    PHR5: Installation Instructions 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 8: Rigging/Lifting Of Unit (See Fig. 5)

    PHR5: Installation Instructions paid to excessive wear at hoist hooking points and load support areas. installations. Install a field-supplied 2-in. (51 mm) condensate trap at Materials showing any kind of wear in these areas must not be used and end of condensate connection to ensure proper drainage. Make sure that should be discarded.
  • Page 9: Configuring Units For Downflow (Vertical) Discharge

    PHR5: Installation Instructions Configuring Units for Downflow (Vertical) Discharge WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before performing service or maintenance operations on the system, turn off main power to unit and install lockout tag. There may be more than one disconnect switch.
  • Page 10: High-Voltage Connections

    PHR5: Installation Instructions CAUTION UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the unit being installed. Make all electrical connections in accordance with NFPA 70 (NEC) (latest edition) and local electrical codes governing such wiring.
  • Page 11: Transformer Protection

    PHR5: Installation Instructions If an accessory electric heater is installed, low voltage leads from heater connect white and violet wires shown in Fig. 10 to second stage heat must be connected to factory supplied control leads from Indoor Fan field wire.
  • Page 12: Pre-Start-Up

    PHR5: Installation Instructions Pre-Start-up 1. Place room thermostat SYSTEM switch or MODE control in OFF position. Observe that blower motor starts when FAN mode is WARNING placed in FAN ON position and shuts down when FAN MODE switch is placed in AUTO position.
  • Page 13: Checking And Adjusting Refrigerant Charge

    PHR5: Installation Instructions Indoor Airflow and Airflow Adjustments outdoor temperature is below 40°F (4°C) (unless accessory low-ambient kit is installed). WARNING IMPORTANT: Three-phase, scroll compressors are direction oriented. Unit must be checked to ensure proper compressor 3-phase power lead UNIT OPERATION HAZARD orientation.
  • Page 14: Sequence Of Operation

    PHR5: Installation Instructions e. Heat Pump Heating with Auxiliary Heat Table 4 – Color Coding for Indoor Fan Motor Leads (1.) Thermostat closes circuits R to G, R to Y and R to W/W1 or Black = High Speed W2. The compressor, indoor and outdoor fans are Orange = Med-High Speed energized, as well as the electric heat relays.
  • Page 15 PHR5: Installation Instructions HIGH R13 C8 AB A15 D5 D3 R3 R5 R6 R W2 Y W3 W3 W2 W2 C SSTZ-8 DH G 460 VAC Models A09059 208/230 VAC Models A12571 Fig. 11 – Interface Fan Board (IFB) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 16 PHR5: Installation Instructions C03012 Fig. 12 – Typical Heat Pump Operation, Heating Mode C03011 Fig. 13 – Typical Heat Pump Operation, Cooling Mode Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 17 Table 5 – Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 208-230VAC - 1 Phase/3 Phase ESP (in. W.C.) Unit Size Motor Speed Blue 0.10 0.11 0.11 0.12 0.12 0.13 0.13 Med-Low** Pink 0.15 0.14 0.14 0.15 0.15 0.16 0.17...
  • Page 18 Table 6 – Wet Coil Pressure Drop (IN. W.C.) 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.08 0.09 0.10 0.11 0.03 0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.03 0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.10 0.11...
  • Page 19 Table 7 – Ecnoomizer with 1-in. Filter Pressure Drop (IN. W.C.) Cooling Standard CFM (SCFM) Filter Size in. (mm) Tons 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 600-1400 CFM 12x20x1+12x20x1 0.04 0.05 0.07 0.09 0.14 0.16 0.18 0.25...
  • Page 20 PHR5: Installation Instructions A230223 Fig. 14 – Connection Wiring Diagram 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 21 PHR5: Installation Instructions A230224 Fig. 15 – Ladder Wiring Diagram 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 22 PHR5: Installation Instructions A230221 Fig. 16 – Connection Wiring Diagram 208/230-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 23 PHR5: Installation Instructions A230222 Fig. 17 – Ladder Wiring Diagram 208/230-3-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 24 PHR5: Installation Instructions A230229 Fig. 18 – Cooling Charging Chart Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
  • Page 25: Maintenance

    PHR5: Installation Instructions Maintenance cooling season and twice during the heating season, or whenever the filter becomes clogged with dust and lint. To ensure continuing high performance, and to minimize the possibility Indoor Blower and Motor of premature equipment failure, periodic maintenance must be NOTE: All motors are pre-lubricated.
  • Page 26: Outdoor Coil, Indoor Coil, And Condensate Drain Pan

    PHR5: Installation Instructions FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” Size Fig. 19 – Fan Blade Position Inspect the drain pan and condensate drain line when inspecting the coils.
  • Page 27: Refrigerant Circuit

    PHR5: Installation Instructions with the proper electrical instrumentation. Refer to the unit wiring label kPa). High pressure may be caused by a dirty condenser coil, failed fan when making these checkouts. motor, or condenser air recirculation. NOTE: Refer to the heating and/or cooling sequence of operation in...
  • Page 28: Synthetic Roof Precautionary Procedure

    PHR5: Installation Instructions immediately cleaned up, may cause embrittlement (leading to cracking) to occur in one year or more. When performing any service that may risk FEEDER TUBE exposure of compressor oil to the roof, take appropriate precautions to STUB TUBE protect roofing.
  • Page 29 PHR5: Installation Instructions Table 10 – 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 outdoor fan will not start...
  • Page 30 REFRIGERANT DISCHARGE ____________ PSIG, LIQUID TEMP† _______________________ ( ) VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS * Measured at suction inlet to compressor {Measured at liquid line leaving condenser. © 2023 Carrier. All rights reserved. Edition Date: 03/23 Catalog No: PHR5-01SI A Carrier Company Replaces:New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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