Rheem 55027500 Service Instructions Manual
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Rheem 55027500 Service Instructions Manual

Air sourced heat pump
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SERVICE INSTRUCTIONS

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Air Sourced Heat Pump
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Summary of Contents for Rheem 55027500

  • Page 1: Service Instructions

    SERVICE INSTRUCTIONS Air Sourced Heat Pump TM017 550275 551275 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 2: Table Of Contents

    551 Series Replacement Parts List ................50 Rheem Electric Water Heater Warranty - (Australia Only) ..........51 Document Revision History....................52 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 3: Safety Warning

    Environmental At the end of the service life of a Rheem heat pump the refrigerant must be recovered by personnel qualified and licensed to work with refrigerants prior to the unit being disposed of. Refrigerants must not be vented to atmosphere.

  • Page 4: Specifications

    6. Check evaporator fins and fan blade for build up of dust or debris. 7. Check for sludge build up and if necessary drain and flush tank. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service.

  • Page 5: Operation

    7 degrees, cutting power to the booster element and reactivating the compressor and evaporator fan motor, at this point normal heat pump operation is resumed. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 6: Refrigeration Terms And Their Meaning

    De-Ice Thermostat - A device responsive to temperature that controls a solenoid to perform de-icing of the evaporator in cold weather. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 7: Common Faults

    Discoloured water - This may be the result of discoloured water entering from the cold water mains. Check if the cold water is also discoloured. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...
  • Page 8 1. Turn off the stopcock on the cold water supply to the water heater. 2. Open a hot tap. If water flow is persistent and cold a cross connection exists. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service.

  • Page 9: Product Changes

    R409A (part number 180024) Wiring Diagrams 55027500 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
  • Page 10 55127507 (Manufactured before August 2004) 55127507/A (Manufactured after August 2004) TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 11: Refrigeration Sealed System Diagrams

    Refrigeration Sealed System Diagrams 55027500 55127507 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 12: Performance Graph

    Leaking water heater Noisy water heater Blowing fuse/circuit breaker TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 13: Fault Finding

    Noisy water heater? Blowing fuse/circuit breaker TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 14: 550275 Power Supply Fault Finding - Chart 1

    2. Faulty circuit breaker or fatigued fuse wire 3. Unit may be short cycling due to faulty thermostat TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 15: Thermostat Circuit Fault Finding - Chart 1.1

    Fault in electrical wiring Locate and repair TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
  • Page 16 4L. Normal resistance should be less than 1 ohm. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
  • Page 17 6.01 ohms when the compressor is cold. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
  • Page 18 5 and neutral on the terminal strip. Normal voltage is 240 volts TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 19: Refrigerant System Fault Finding - Chart 1.2

    Locate and repair Note: Failure of the condenser will require complete water heater replacement TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 20: Refrigerant System Fault Finding - Chart 1.3

    2050 - 2150 2250 - 2350 2450 - 2550 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 21: Refrigerant Charge

    Note: Unusual current draw or high head pressure can be a sign of other problems such as a blockage or malfunctioning TX valve. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 22: Refrigerant System Fault Finding - Chart 1.4 & 2.2

    Remove hand and replace insulation, the TX valve should close, resulting in the reversal of the above results. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 23: Refrigerant System Fault Finding - Chart 2

    HIGH TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
  • Page 24 Normal resistance is 2 kilo- ohms TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 25: De-Ice Thermostat Fault Finding - Chart 2.3

    NOTE: While in boost mode the evaporator will defrost naturally, depending on the ice build up this may take several hours TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...

  • Page 26: Insufficient Hot Water - Chart 3

    Recommend a water heater of sufficient capacity to meet needs TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 27: Insufficient Hot Water - Chart 3.1

    Normal Operation Replace Tempering Valve 2 Zone Plumbing TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 28: Leaking Water Heater - Chart 4

    Remove anode and repair leak using Teflon thread tape TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 29: Noisy Water Heater - Chart 5

    Fit 600kPa pressure limiting valve TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 30: Electrical Insulation Test - Chart 6

    Check for pinched or damaged wiring touching the heater jacket TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 31: Electrical Insulation Testing

    Personal Protective Equipment should be worn when conducting step 1 of this procedure to reduce the risk of electric shock. Refer to Rheem safety procedure on electrical testing.

  • Page 32: 551275 Power Supply Fault Finding - Chart 7

    1. Faulty circuit breaker or fatigued fuse wire 2. Unit may be short cycling due to faulty thermostat TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...
  • Page 33 The reading should be less than 1 ohm. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 34: 551275 Booster Circuit Fault Finding - Chart 8

    Booster circuit electrically ok TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
  • Page 35 2L and 2T on the thermostat. The reading should be less than 1 ohm. TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by...
  • Page 36 2.4kW: 20 - 25 ohms 3.6kW: 13 -17 ohms TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 37: Component Replacement Procedures - Water Heater

    Personal Protective Equipment should be worn to prevent scalds or burns. Personal Protective Equipment should be worn when conducting step 3 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 1. Isolate the power and water supplies to the water heater.
  • Page 38 Compressor Thermostat (Procedure 4) Personal Protective Equipment should be worn when conducting step 2 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 1. Isolate the power to the water heater and remove access cover.

  • Page 39: Component Replacement Procedures - Refrigeration Plant

    Heating Unit (Procedure 7) Personal Protective Equipment should be worn when conducting step 3 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 1. Drain the water heater. Refer to procedure 1.
  • Page 40 Evaporator Fan Motor (Procedure 10) Personal Protective Equipment should be worn when conducting step 2 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. The fan motor may commence operation without warning. Failure to isolate the power may result in serious injury if the fan commences operation during the removal process.
  • Page 41 Evaporator Thermostat – 551 Series only (Procedure 13) Personal Protective Equipment should be worn when conducting step 2 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 1. Isolate the power to the water heater.
  • Page 42 Receiver/Filter Drier (Procedure 15) Personal Protective Equipment should be worn when conducting step 2 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 1. Isolate the power to the water heater.
  • Page 43 Bypass Valve – 550 Series Only (Procedure 17) Personal Protective Equipment should be worn when conducting step 2 of this procedure to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 1. Isolate the power to the water heater.
  • Page 44 Refrigerant Conversion - R22 to R409A (Procedure 20) This procedure details the steps to convert the refrigerant used in Rheem 550/551 series Heat Pumps from R22 to R409A. Prior to replacing the refrigerant it will be necessary to determine the current operating head pressure of the refrigeration system with R22.
  • Page 45 1. Isolate power to the water heater and remove electrical access cover. Personal Protective Equipment should be worn when conducting step 2 to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. 2. Confirm with a multi-meter between Active and Neutral at the terminal block that voltage is not present.
  • Page 46 126528 55127505 126526 55127507 126527 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 47: Exploded View - Refrigeration Plant - 550 Series

    102747 Louvre Rail End Cap – RH 102748 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 48: Exploded View - Refrigeration Plant - 551 Series

    102747 Louvre Rail End Cap - RH 102748 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 49: Exploded View - Water Heater - 550 Series

    Anode – Green 222024 Terminal Block 051565 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 50: Exploded View - Water Heater - 551 Series

    Exploded View - Water Heater - 551 Series TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 51: 551 Series Replacement Parts List

    050319 21 Element Gasket 050704 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

  • Page 52: Rheem Electric Water Heater Warranty - (Australia Only)

    In addition to this warranty, the Trade Practices Act 1974 and similar laws in each state and territory provide the owner under certain circumstances with certain minimum statutory rights in relation to your Rheem water heater. This warranty must be read subject to that legislation and nothing in this warranty has the effect of excluding or restricting those rights.

  • Page 53: Document Revision History

    9/03 R409A models added 11/05 TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C Date of Issue: 5/11/05 This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.

This manual is also suitable for:

55127507

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