Table of Contents
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INSTALLATION INSTRUCTIONS
13 & 14 SEER SERIES
CUBE HEAT PUMPS
1
1
⁄
- 5 TONS FEATURING
2
EARTH-FRIENDLY R-410A REFRIGERANT
R-410
e a r t h f r i e n d l y r e f r i g e r a n t
r e f r i g e r a n t
NOTE: Appearance of unit may vary.
WARNING
LWARNING
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, adjust-
ment, service or maintenance possibly resulting in fire, electri-
cal shock, property damage, personal injury or death.
92-20522-57-03
SUPERSEDES 92-20522-57-02
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Table of Contents
Troubleshooting
Related Manuals for Rheem 13 Series
Summary of Contents for Rheem 13 Series
- Page 1 INSTALLATION INSTRUCTIONS 13 & 14 SEER SERIES CUBE HEAT PUMPS ⁄ - 5 TONS FEATURING EARTH-FRIENDLY R-410A REFRIGERANT R-410 e a r t h f r i e n d l y r e f r i g e r a n t r e f r i g e r a n t NOTE: Appearance of unit may vary.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1.0 SAFETY INFORMATION ..........3 2.0 GENERAL INFORMATION . -
Page 3: Safety Information
1.0 SAFETY INFORMATION WARNING Disconnect all power to unit before starting maintenance. Failure to do so can cause electrical shock resulting in severe personal injury or death. WARNING Turn off electric power at the fuse box or service panel before making any electrical connections. -
Page 4: General Information
2.0 GENERAL WARNING 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 A 2"... -
Page 6: Electrical And Physical Data
2.4 ELECTRICAL & PHYSICAL DATA (SEE TABLE 1) TABLE 1 ELECTRICAL AND PHYSICAL DATA – 13 SEER ELECTRICAL DATA PHYSICAL DATA Fuse or HACR Compressor Outdoor Coil Weight Refrig. Fan Motor Minimum Model Phase Circuit Breaker Full Load Circuit Number Face Area Rated Load Locked Rotor... -
Page 7: Heat Pump Location
WARNING 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 FIGURE 3 TIE-DOWN KIT ASSEMBLY VIEW C VIEW B VIEW D NOTE: TIE DOWN TIE DOWN ASSEMBLY DIMENSIONS 13 SEER 14 SEER ASSEMBLY MODELS MODELS VIEW CENTER LINE CENTER LINE 23.63” 23.63” 3.5” 18.63” 1.94” 20.19” 18/24 18/24 [600] [600] [88.9] [473.2] [49.7]...
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Page 10: Refrigerant Connections
STEP 2: Center basepan on pad, ensuring it is level. STEP 3: Remove unit top panel by removing screws around the perimeter of top panel. Disconnect fan motor leads from contactor and lay top panel aside taking care not to damage the fan. STEP 4: Drill 4 or 6 holes (1/4”... -
Page 11: Interconnecting Tubing
7.0 INTERCONNECTING TUBING 7.1 VAPOR AND 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 12: 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 13 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” 7/8” 7/8” 7/8” 7/8” Suction Line Connection Size [19] I.D. [19] I.D.
- Page 14 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 15: Demand Defrost Control
8.0 DEMAND DEFROST CONTROL 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. 8.1 DEFROST INITIATION A defrost will be initiated when the three conditions below are satisfied: 1) The outdoor coil temperature is below 35°F [1.6°C]. -
Page 16: Test Mode
8.4 TEST MODE The test mode is initiated by shorting the TEST pins. In this mode of operation, the enable temperature is ignored and all timers are sped up by a factor of 240. To initi- ate a manual defrost, short the TEST pins. Remove the short when the system switches to defrost mode. -
Page 17: Start Up & Performance
10.0 START UP AND PERFORMANCE 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 18: Charging By Weight
12.2 CHARGING 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 19: 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) 197 - 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 20: Field Installed Accessories
14.0 FIELD INSTALLED ACCESSORIES 14.1 COMPRESSOR CRANKCASE HEATER (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 21: 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 22: Cooling Mechanical Checks Flow Chart
16.2 COOLING MECHANICAL CHECKS FLOW CHART 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 Inadequate Indoor Air Flow... -
Page 23: Heating Mechanical Checks Flow Chart
16.3 HEATING MECHANICAL CHECKS FLOW CHART 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 Inoperative Indoor Blower Open IPR Valve... -
Page 24: Defrost Mechanical Checks Flow Chart
16.4 DEFROST MECHANICAL CHECKS FLOW CHART 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 (doesn’t stop O.D. -
Page 25: Subcooling Calculation
16.5 SUBCOOLING CALCULATION 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. Measure the liquid line temperature at the liquid line service valve. -150 [-101.1] —... -
Page 26: General Troubleshooting Chart
16.6 GENERAL TROUBLE SHOOTING CHART 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 27: Service Analyzer Chart
16.7 SERVICE ANALYZER CHART 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 28 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 29 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 30 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 31 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...
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Page 32: Wiring Diagram
17.0 WIRING DIAGRAM FIGURE 6 WIRING DIAGRAM OPTIONAL: BELLY BAND CRANKCASE HEATER AMBIENT SENSOR 90-101229-02 01-19-04 CM 0108...