Table of Contents
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WARNING:
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
DEATH.
Do not destroy this manual.
Please read carefully and
keep in a safe place for future
reference by a serviceman.
[ ] indicates metric conversions.
92-105074-01-00 (6/14) Printed in USA
R-410A HEAT PUMP
OUTDOOR UNITS
INSTALLATION INSTRUCTIONS
RP14 14 SEER
ST-A1226-01-00
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Table of Contents
Related Manuals for Rheem RP14 14 SEER
Summary of Contents for Rheem RP14 14 SEER
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Page 1: Outdoor Units
TO QUALIFIED, LICENSED INSTALLATION INSTRUCTIONS SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT, AND OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY BEFORE RP14 14 SEER ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE, OR MAINTENANCE... -
Page 2: Table Of Contents
CONTENTS Important Start-Up ������������������������������������������������������ 22-26 Start-Up ����������������������������������������������������������������������22 Safety Information ��������������������������������������������� 3 Checking Airflow ��������������������������������������������������������22 General Information ���������������������������������������� 4-7 Evacuation Procedure ����������������������������������������������� 23 Checking Product Received ����������������������������������������4 Final Leak Testing �������������������������������������������������������23 Application �������������������������������������������������������������������4 Electrical and Physical Data ������������������������������������� 5-6 Checking Specifications ���������������������������������������������������������������7 Refrigerant Charge ��������������������������������������... -
Page 3: Important Safety Information
IMPORTANT SAFETY INFORMATION WARNINGS: CAUTIONS: • These instructions are intended as an aid to • R-410A systems operate at approximately 60% qualified, licensed service personnel for proper higher pressures (1�6 times) than R-22 systems� Do installation, adjustment, and operation of this not use R-22 service equipment or components on unit�... -
Page 4: General Information
GENERAL INFORMATION WARNING: Application Before specifying any heat pump equipment, Improper installation, or installation not made in a survey of the structure and a heat loss and accordance with these instructions, can result heat gain calculation must be made� A heat loss in unsatisfactory operation and/or dangerous calculation involves identifying all surfaces and conditions and can cause the related warranty... -
Page 5: Electrical And Physical Data
GENERAL INFORMATION Electrical and Physical Data ELECTRICAL PHYSICAL Fuse or HACR Compressor Outdoor Coil We ight Refrig . Minimu m Model Motor Circuit Breaker Circuit Full Face Number Freq Rated Load Locked Roto r Voltage Phase Circuit Shipping Load Ampacity Area Minimu m Maximu m... -
Page 6: Specifications
GENERAL INFORMATION Specifications ALLOW 60" [1524mm] OF ALLOW 60” [1524mm] CLEARANCE OF CLEARANCE “W” “L” “H” SERVICE PANELS/ INLET CONNECTIONS / HIGH & LOW VOLTAGE SERVICE PANELS/ INLET CONNECTIONS / HIGH & LOW ACCESS ALLOW VOLTAGE ACCESS 24" [610 mm] OF ALLOW 24”... -
Page 7: Installation
INSTALLATION Choosing a Location IMPORTANT: Corrosive Environment Consult local and national building codes and ordinances for special The metal parts of this unit may be subject to installation requirements� Following location rust or deterioration if exposed to a corrosive information will provide longer life and simplified environment�... -
Page 8: Customer Satisfaction Issues
INSTALLATION Choosing a Location (cont�) For Units With Space • If elevating a unit on a flat roof, use 4" x 4" [10.2 cm x 10.2 cm] or equivalent stringers Limitations positioned to distribute unit weight evenly and In the event that a space limitation exists, we will prevent noise and vibration�... - Page 9 INSTALLATION Choosing a Location (cont�) GROUND SNOW DEPTH – INCHES ALABAMA INDIANA MINNESOTA NEW MEXICO PENNSYLVANIA VIRGINIA Huntsville Evansville Duluth Albuquerque Allentown Dulles Airport Fort Wayne International Falls Clayton Erie Lynchburg ARIZONA Flagstaff Indianapolis Minneapolis/St. Paul 50 Roswell Harrisburg National Airport Prescott South Bend Rochester...
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Page 10: Tools And Refrigerant
INSTALLATION Tools and Refrigerant Tools Required for Installing Pressure: The pressure of R-410A is approximately 60% (1�6 times) greater than and Servicing R-410A Models R-22� Recovery and recycle equipment, pumps, Manifold Sets: hoses, and the like must have design pressure ratings appropriate for R-410A�... -
Page 11: Interconnecting Tubing
INSTALLATION Replacement Units IMPORTANT: To prevent failure of a new unit, the existing line set When replacing an must be correctly sized and cleaned or replaced� R-22 unit with an R-410A unit, either replace Care must be exercised that the expansion device the line set or ensure that residual mineral oil is is not plugged�... - Page 12 INSTALLATION Interconnecting Tubing (cont�) Interconnecting Tubing and tubing length, fittings, vertical separation, acces- sories, and filter dryers. The table below references Fitting Losses different commonly used equivalent lengths. Refrigerant tubing is measured in terms of actual length and equivalent length� Actual length is used for refrigerant charge applications�...
- Page 13 INSTALLATION Interconnecting Tubing (cont�) Example: A 3-Ton heat pump unit is installed 50’ below the ID unit, requires a 75’ of 1/2” diameter liquid line, and 4 90° LR elbows� • Fitting Equivalent Length (ft�) = 4 x �9 = 3�6’ •...
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Page 14: Interconnecting Tubing
INSTALLATION Interconnecting Tubing (cont�) Suction Line Selection Refrigerant Migration During Off Cycle Purpose of the suction line is to return superheated vapor to the condensing unit from the evaporator� Long line set applications can require a consider- Proper suction line sizing is important because it able amount of additional refrigerant�... - Page 15 INSTALLATION Interconnecting Tubing (cont�) For applications that are considered to have a long • Vapor line should slope toward the indoor unit line set with the outdoor unit and indoor unit on the • Follow the proper line sizing, equivalent length, same level the following is required: charging requirements, and oil level adjustments spelled out in this document and the outdoor...
- Page 16 INSTALLATION Interconnecting Tubing (cont�) Outdoor Unit Above Indoor Unit Insulated liquid and Reference Table 2 suc on line for eleva on limita ons Verify sub-cooling prior to thro ling device TXV or EEV at indoor evaporator Figure 5 For applications that are considered to have a long •...
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Page 19: Tubing Installation
INSTALLATION Interconnecting Tubing (cont�) Tubing Installation Observe the following when installing correctly sized type “L” refrigerant tubing between the condensing unit and evaporator coil: • Check the tables on page 12 for the correct suction line size and liquid line size� •... -
Page 20: Tubing Connections
INSTALLATION Interconnecting Tubing (cont�) • 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 good tubing bender on the vapor line to prevent kinking�... - Page 21 INSTALLATION Interconnecting Tubing (cont�) Leak Testing Indoor coils have only a holding charge of dry nitrogen� Keep all tube ends sealed until connections are to be made� WARNING: Do not use oxygen to purge lines or pressurize system for leak test� Oxygen reacts violently with oil, which can cause an explosion resulting in severe personal injury or death�...
- Page 22 WIRING Control Wiring WARNING: FIELD WIRE SIZE FOR 24-VOLT THERMOSTAT CIRCUITS Turn off electric power at the fuse box or service panel before making Thermostat SOLID COPPER WIRE – AWG. any electrical connections� Also, the ground Load (amps) connection must be completed before making line voltage connections�...
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Page 23: Wiring
WIRING Control Wiring (cont�) Power wiring must be run in a rain-tight conduit� TYPICAL 1-STAGE DUAL FUEL THERMOSTAT AND Conduit must be run through the connector panel DUAL-FUEL APPLICATION below the access cover (see page 6) and attached to the bottom of the control box� Typical One-Stage Furnace... -
Page 24: Start-Up
START-UP Start-Up 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� Allow a minimum of 15 minutes of run time before analyzing charge� CAUTION: Single-pole contactors are used on all standard single-phase units... -
Page 25: Evacuation Procedure
START-UP Evacuation and Leak Testing Evacuation Procedure Evacuation is the most important part of the entire service procedure� The life and efficiency of the equipment is dependent upon the thoroughness exercised by the serviceman when evacuating air and moisture from the system� Air or nitrogen in the system causes high condensing temperatures and pressure, resulting in increased power input and nonverifiable... -
Page 26: Refrigerant Charge
START-UP Checking Refrigerant Charge Charge for all systems should be checked against Confirm ID Airflow and Coils the Charging Chart inside the access panel cover� Are Clean WARNING: The top of the scroll Confirm adequate indoor supply airflow prior to compressor shell is hot�... -
Page 27: Final Charge By Subcooling
START-UP Checking Refrigerant Charge (cont�) With an accurate scale (+/– 1 oz. [28.3 g]) or 2� Note the Outdoor Dry Bulb Temperature, volumetric charging device, adjust charge ODDB° = _____°F [_____°C]� Unit charging is recommended under the following outdoor difference between that shown on the unit data conditions ONLY: plate and that calculated for the new system installation�... -
Page 28: Start-Up
START-UP Checking Refrigerant Charge (cont�) NOTICE: requirement for the given outdoor and indoor If the indoor temperature is conditions, add charge� If the measured subcool above or below the recommended range, run the is above the listed requirement for the given system to bring the temperature down or run the outdoor and indoor conditions, remove charge�... -
Page 29: High- And Low-Pressure
COMPONENTS AND CONTROLS Compressor Crankcase Heat (CCH) While scroll compressors usually do not require All heaters are located on the lower half of the crankcase heaters, there are instances when a compressor shell� Its purpose is to drive refrigerant heater should be added� Refrigerant migration from the compressor shell during long cycles, during the off cycle can result in a noisy start up�... -
Page 30: Demand Defrost
COMPONENTS AND CONTROLS Demand Defrost Control (cont�) The demand defrost control monitors the outdoor Test Mode ambient temperature, outdoor coil temperature The test mode is initiated by shorting the TEST and the compressor run time to determine when a pins� The unit must have an active heat pump defrost cycle is required�... -
Page 31: Components And Controls
COMPONENTS AND CONTROLS Demand Defrost Control (cont�) opens at approximately 610 psig and closes Heating Mode: The compressor and fan motor at approximately 420 psig� The compressor will stop when the low pressure control opens and and fan motor will stop when the high pressure will start again when the low side pressure rises control opens and will start again if the high side to approximately 40 psig when the low pressure... -
Page 32: Accessories
ACCESSORIES Heat Pump Thermostat WARNING: Turn off electric power Warning Light Kit RXPX-D01 at the fuse box or service panel before making any electrical connections� Also, the ground This component senses a compressor lock out connection must be completed before making line and tells the thermostat service light to come on�... -
Page 33: Indoor Coil
DIAGNOSTICS Cooling Mechanical Checks Flowchart Outdoor Unit Running? Go to Electrical Checks Flowchart Pressure Problems? High Head Low Liquid Low Suction Pressure Pressure Pressure Dirty Outdoor Low on Dirty Filters Coil Charge Inoperative Outdoor Open IPR Dirty Indoor Coil Valve Low Ambient Inadequate Indoor Overcharge... -
Page 34: Checks Flowchart
DIAGNOSTICS Heating Mechanical Checks Flowchart Outdoor Unit Running? Go to Electrical Checks Flowchart Pressure Problems? High Liquid Low Liquid Low Suction Pressure Pressure Pressure Dirty Indoor Low on Dirty Outdoor Coil Coil Charge Inoperative Indoor Open IRP Inadequate Outdoor Valve Air ow Low Indoor Inoperative Outdoor... - Page 35 DIAGNOSTICS Defrost Mechanical Checks Flowchart Defrost System Incomplete Excessive Defrost Defrost Defrost Reversing Valve Poor Sensor Wrong Defrost Control Stuck Location Timer Setting No Defrost Timer Wrong Defrost Control Poor Sensor Control Power Timer Setting Location Failed Defrost Low System Failed Defrost Relay Control Charge...
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Page 36: General Troubleshooting Chart
DIAGNOSTICS General Troubleshooting 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 37: Service Analyzer Charts
DIAGNOSTICS Service Analyzer Charts COMPRESSOR OVERHEATING CHECK/REMEDY SYMPTOM POSSIBLE CAUSE High superheat Low charge Check system charge� (greater than 15°F Faulty metering device Restricted cap tube, TEV (TXV) [-9°C] at coil) Power element superheat out of adjustment internally Foreign matter stopping flow High internal load Hot air (attic) entering return Heat source on;... - Page 38 DIAGNOSTICS Service Analyzer Charts COMPRESSOR OVERHEATING (cont.) SYMPTOM POSSIBLE CAUSE CHECK OR REMEDIES Short cycling of Low charge Check system charge� compressor (cont�) Low evaporator airflow Dirty coil Dirty filter Duct too small or restricted Faulty run capacitor Replace� Faulty internal overload Replace compressor�...
- Page 39 DIAGNOSTICS Service Analyzer Charts CONTAMINATION SYMPTOM POSSIBLE CAUSE REMEDY Moisture Poor evacuation on installation or during service In each case, the cure is the same� Recover refrigerant� Add filter drier, evacuate, and recharge. High head pressure Noncondensibles air Unusual head and Wrong refrigerant or mixed refrigerants suction readings Foreign matter –...
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Page 40: Thermostatic Expansion Valves
DIAGNOSTICS Service Analyzer Charts FLOODING SYMPTOM POSSIBLE CAUSE REMEDY Loose sensing bulb Secure the bulb and insulate� Bulb in wrong location Relocate bulb� Poor system control using a TEV Wrong size TEV Use correct replacement� Improper superheat setting (less than 5°F [-15°C]) Replace TEV�... - Page 41 DIAGNOSTICS Service Analyzer Charts THERMOSTATIC EXPANSION VALVES (cont.) SYMPTOM POSSIBLE CAUSE REMEDY Refrigerant drainage from flooded evaporator Install trap riser to the top of the evaporator coil� Inoperable crankcase heater or crankcase heater Replace or add crankcase heater� Compressor flood needed back upon start-up Any of the causes listed under symptoms of...
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Page 42: Diagnostics
DIAGNOSTICS COOLING MODE TROUBLESHOOTING TIPS INDICATORS SYSTEM DISCHARGE SUCTION SUPERHEAT SUBCOOLING COMPRESSOR PROBLEM Normal: 5°–15°F Normal: See PRESSURE PRESSURE AMPS [-15° – -9°C] Charging Chart High High High High Overcharge High Undercharge Liquid Restriction High High (Drier) Low Indoor Airflow High High High... -
Page 43: Wiring Diagrams
WIRING DIAGRAMS FOR SINGLE PHASE WITH PSC FAN MOTORS... -
Page 44: Wiring Diagrams
WIRING DIAGRAMS 3 PHASE 208/230V MODELS... - Page 45 WIRING DIAGRAMS FOR 3 PHASE, 460/575V...
- Page 48 CM 0614...