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INSTALLATION INSTRUCTIONS
15 SEER SERIES
HEAT PUMPS
1
1
⁄
- 5 TONS FEATURING
2
EARTH-FRIENDLY R-410A REFRIGERANT
R-410
!
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION!
WARNING
!
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO
QUALIFIED, LICENSED SERVICE PERSONNEL FOR
PROPER INSTALLATION, ADJUSTMENT AND OPERATION
OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY
BEFORE ATTEMPTING INSTALLATION OR OPERATION.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT
IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR
MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRICAL
SHOCK, PROPERTY DAMAGE, PERSONAL INJURY OR
ISO 9001:2008
DEATH.
DO NOT DESTROY THIS MANUAL
PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE BY A SERVICEMAN
92-20522-80-03
SUPERSEDES 92-20522-80-02
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Summary of Contents for Rheem 15 SEER Series
- Page 1 INSTALLATION INSTRUCTIONS 15 SEER SERIES HEAT PUMPS ⁄ - 5 TONS FEATURING EARTH-FRIENDLY R-410A REFRIGERANT R-410 RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION! WARNING THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT.
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Page 2: Table Of Contents
T BLE OF CONTENTS 1.0 SAFETY INFORMATION ..........3 2.0 GENERAL INFORMATION . -
Page 3: Safety Information
1.0 S FETY INFORM TION W RNING Disconnect all power to unit before starting maintenance. Failure to do so can cause electrical shock resulting in severe personal injury or death. W RNING Turn off electric power at the fuse box or service panel before making any electrical connections. -
Page 4: General Information
2.0 GENER L W RNING The manufacturer’s warranty does not cover any damage or defect to the heat pump caused by the attachment or use of any components. Accessories or devices (other than those authorized by the manufactur- er) into, onto or in conjunction with the heat pump. You should be aware that the use of unauthorized components, accessories or devices may adversely affect the operation of the heat pump and may also endanger life and property. -
Page 5: Dimensions
2.3 DIMENSIONS (SEE FIGURE 1) FIGURE 1 AIR DISCHARGE: ALLOW DIMENSIONS 60” [1524 mm] MINIMUM CLEARANCE. A-00008 AIR INLETS (LOUVERED PAN- ELS) ALLOW 6” [152.4 mm] MINIMUM CLEARANCE SERVICE ACCESS ALLOW 24” [609.6 mm] CLEARANCE NOTE: GRILLE APPEARANCE MAY VARY. SEE DETAIL 2"... -
Page 6: Electrical And Physical Data
2.4 ELECTRIC L & PHYSIC L D T (SEE T BLE 1) TABLE 1 ELECTRICAL AND PHYSICAL DATA – 13 SEER ELECTRIC L D T PHYSIC L D T Fuse or H CR Compressor Outdoor Coil Weight Fan Motor Minimum Refrig. -
Page 7: Heat Pump Location
W RNING Disconnect all power to unit before starting maintenance. Failure to do so can cause electrical shock resulting in severe personal injury or death. • Frequent washing of the cabinet, fan blade and coil with fresh water will remove most of the salt or other contaminants that build up on the unit. -
Page 8: Customer Satisfaction Issues
FIGURE 2 RECOMMENDED ELEVATED INSTALLATION • Do not obstruct the bottom drain opening in the heat pump base pan. It is essential to provide defrost condensate drainage to prevent possible refreezing of the condensation. Provide a base pad for mounting the unit, which is slightly pitched away from the structure. -
Page 9: Refrigerant Connections
4.0 REFRIGER NT CONNECTIONS All units are factory charged with Refrigerant 410A for 15 ft. [4.6 m] of line set. All models are supplied with service valves. Keep tube ends sealed until connection is to be made to prevent system contamination. 5.0 REPL CEMENT UNITS To prevent failure of a new heat pump unit, the existing tubing system must be cor- rectly sized and cleaned or replaced. -
Page 10: Location
7.0 INTERCONNECTING TUBING 7.1 V POR ND LIQUID LINES Keep all lines sealed until connection is made. Make connections at the indoor coil first. Refer to Line Size Information in Tables 2 and 3 for correct size and multipliers to be used to determine capacity for various vapor line diameters and lengths of run. -
Page 11: Tubing Connections
• If tubing is to be run underground, it must be run in a sealed watertight chase. • Use care in routing tubing and do not kink or twist. Use a tubing bender on the vapor line to prevent kinking. •... - Page 12 TABLE 2 SUCTION LINE LENGTH/SIZE VS CAPACITY MULTIPLIER (R-410A) Unit Size 1 1/2 Ton 2 Ton 2 1/2 Ton 3 Ton 3 1/2 Ton 4 Ton 5 Ton 3/4” 3/4” 3/4” 3/4” 7/8” 7/8” 7/8” Suction Line Connection Size [19] I.D. [19] I.D.
- Page 13 TABLE 3 LIQUID LINE SIZING (R-410A) Liquid Line Size Outdoor unit above or below indoor coil Line Size Line Size (Heat Pump Only) System Connection Size (Inch OD) Capacity Total Equivalent Length - Feet [m] (Inch I.D.) [mm] [mm] Maximum Vertical Separation - Feet [m] 1/4 [6.4] 25 [7.6] 40 [12.2]...
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Page 14: Demand Defrost Control
8.0 DEM ND DEFROST CONTROL ND HIGH/LOW PRESSURE CONTROLS The demand defrost control is a printed circuit board assembly consisting of solid state control devices with electro-mechanical outputs. The demand defrost control monitors the outdoor ambient temperature, outdoor coil temperature, and the com- pressor run-time to determine when a defrost cycle is required. -
Page 15: High/Low Pressure Control Monitoring
8.6 HIGH/LOW PRESSURE CONTROL MONITORING Status of high and low pressure controls is monitored by the enhanced feature demand defrost control and the following actions are taken. High Pressure Control (optional) – Provides active protection in both cooling and heating modes at all outdoor ambient temperatures. The high pressure control is an automatic reset type and opens at approximately 610 psig and closes at approxi- mately 420 psig. -
Page 16: Start Up & Performance
10.0 ST RT UP ND PERFORM NCE Even though the unit is factory charged with Refrigerant-410A, the charge must be checked to the charge table attached to the service panel and adjusted, if required. (See Table 1). Allow a minimum of 5 minutes running. Before analyzing charge, see the instructions on the unit service panel rating plate for marking the total charge. -
Page 17: Charging By Weight
12.2 CH RGING BY WEIGHT For a new installation, evacuation of interconnecting tubing and indoor coil is ade- quate; otherwise, evacuate the entire system. Use the factory charge shown in Table 1 of these instructions or unit data plate. Note that charge value includes charge required for 15 ft. -
Page 18: Control Wiring
TABLE 4 VOLTAGE RANGES (60 HZ) Operating Voltage Range at Copeland Nameplate Voltage Maximum Load Design Conditions for Compressors 208/230 (1 Phase) 187 - 253 13.3 CONTROL WIRING (See Figure 5) If the low voltage control wiring is run in conduit with the power supply, Class I insu- lation is required. -
Page 19: Low Ambient Control
14.0 FIELD INST LLED CCESSORIES 14.1 COMPRESSOR CR NKC SE HE TER (CCH) While scroll compressors usually do not require crankcase heaters, there are instances when a heater should be added. Refrigerant migration during the off cycle can result in a noisy start up. Add a crankcase heater to minimize refrigeration migration, and to help eliminate any start up noise or bearing “wash out.”... -
Page 20: Troubleshooting
16.0 TROUBLE SHOOTING In diagnosing common faults in the heat pump system, develop a logical thought pattern as used by experienced technicians. The charts which follow are not intend- ed to be an answer to all problems but only to guide the technician’s thinking. Through a series of yes and no answers, follow the logical path to a likely conclu- sion. -
Page 21: Cooling Mechanical Checks Flow Chart
16.2 COOLING MECH NIC L CHECKS FLOW CH RT Unit Running? Go to Electrical Pressure problems? Checks Flow Chart High Head Pressure Low Head Pressure Low Suction Pressure Dirty Outdoor Coil Low on Charge Dirty Filters Inoperative Outdoor Fan Open IPR Valve Dirty Indoor Coil Overcharge Low Ambient Temperature... -
Page 22: Heating Mechanical Checks Flow Chart
16.3 HE TING MECH NIC L CHECKS FLOW CH RT Unit Running? Go to Electrical Pressure problems? Checks Flow Chart High Head Pressure Low Head Pressure Low Suction Pressure Dirty Filters Low on Charge Dirty Outdoor Coil Dirty Indoor Coil Low Indoor Temperature Inadequate Air Flow Over Outdoor Coil... -
Page 23: Defrost Mechanical Checks Flow Chart
16.4 DEFROST MECH NIC L CHECKS FLOW CH RT DEFROST SYSTEM No Defrost Incomplete Defrost Excessive Defrost Reversing Valve Stuck Poor Sensor Location Wrong Defrost Control Timer Setting No Defrost Timer Wrong Defrost Control Control Power Timer Setting Poor Sensor Location Failed Defrost Control Failed Defrost Relay Low System Charge... -
Page 24: Subcooling Calculation
16.5 SUBCOOLING C LCUL TION TABLE 6 TEMPERATURE PRESSURE CHART 1. Measure the liquid pressure at the liquid line service valve. TEMP R-410A 2. Convert the liquid line pressure to saturated temperature. See Table 6. (Deg. F) [°C] PSIG [kPa] 3. -
Page 25: General Troubleshooting Chart
16.6 GENER L TROUBLE SHOOTING CH RT WARNING Disconnect all power to unit before servicing. Contactor may break only one side. Failure to shut off power can cause electrical shock resulting in personal injury or death. SYMPTOM POSSIBLE CAUSE REMEDY Unit will not run •... -
Page 26: Service Analyzer Chart
16.7 SERVICE N LYZER CH RT COMPRESSOR OVERHEATING SYMPTOMS POSSIBLE CAUSE CHECK/REMEDIES High superheat Low charge Check system charge Faulty metering device Restricted cap tube, TEV (TXV) Power element superheat adjustment Foreign matter stopping flow High internal load Hot air (attic) entering return Heat source on;... - Page 27 SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Short cycling of compressor (cont.) Low charge Check system charge Low evaporator air flow Dirty coil Dirty filter Duct too small or restricted Faulty run capacitor Replace Faulty internal overload Replace compressor Faulty Compressor Valves Fast equalization/ Replace compressor and examine Low pressure difference...
- Page 28 LOSS OF LUBRICATION SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Compressor failures Line tubing too long Add oil to the recommended level Line tubing too large Reduce pipe size to improve oil return Low suction pressure Low charge Check system charge Refrigerant leaks Repair and recharge Cold, Noisy compressor - Slugging...
- Page 29 THERMOSTATIC EXPANSION VALVES SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES High Superheat, Low Suction Pressure Moisture freezing and blocking valve Recover charge, install filter-drier, evacuate system, recharge Dirt or foreign material blocking valve Recover charge, install filter-drier, evacuate system, recharge Low refrigerant charge Correct the charge Vapor bubbles in liquid line Remove restriction in liquid line...
- Page 30 THERMOSTATIC EXPANSION VALVES SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Superheat is low to normal Unequal evaporator circuit loading Ensure air flow is equally distributed with low suction pressure through evaporator Ensure proper piston is inserted into RCBA or RCHA evaporator coil distributor Check for blocked distributor tubes...
- Page 31 IMPORTANT: SHIPPING STRAP REMOVAL Notice: Failure to remove strap prior to operation could result in increased internal tubing stress. Plastic strap can be cut off from the exterior of the unit and left inside of the unit.
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Page 32: Wiring Diagrams
17.0 WIRING DIAGRAMS 17.1 ENHANCED DEFROST CONTROL - PSC MOTOR FIGURE 6... -
Page 33: Enhanced Defrost Control - Ecm Motor
17.2 ENHANCED DEFROST CONTROL - ECM MOTOR FIGURE 7... - Page 36 CM 0811...
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