Rheem 310 Series Service Instructions Manual
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Rheem 310 Series Service Instructions Manual

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Rheem Australia Pty Ltd
SERVICE INSTRUCTIONS
This document is stored and maintained electronically by
310 Series Heat Pump
First Issued March 2007
Issued: March 2016
Solahart
Edwards 40467791
Technical Support. All printed copies are deemed uncontrolled.
ABN 21 098 823 511
TM025
Revision: AF
551310
251310
310HAV

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  • Page 1 Rheem Australia Pty Ltd ABN 21 098 823 511 SERVICE INSTRUCTIONS 310 Series Heat Pump TM025 Revision: AF Issued: March 2016 Rheem 551310 Everhot 251310 Solahart 310HAV Edwards 40467791 First Issued March 2007 This document is stored and maintained electronically by...

  • Page 2: Table Of Contents

    Heat Pump Module......................85 Refrigeration System ...................... 90 DOCUMENT REVISION HISTORY ................... 98 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 3: Introduction

    Regulatory Authorities to carry out effective repairs to a 310 Series Heat Pump Water Heater in the minimum amount of time. Safety precautions or areas where extra care should be observed when conducting tests outlined in this manual are indicated by print in bold italics and / or a warning symbol.

  • Page 4: Heater Model Identification

    91 – With Heat Pump Module 28 – 2400 watt element 29 – 3600 watt element TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 5: Heat Pump Water Heater Models

    HEAT PUMP WATER HEATER MODELS The 310 Series Heat Pump consists of a Storage Tank and a Heat Pump Module, which combine to make up the complete heat pump water heater. The table below details the model numbers of the Storage Tanks and Heat Pump Modules that comprise each model of heat pump water heater.

  • Page 6: Specifications

    1.5µF +2/–5% Grundfos Circulator Speed Setting HPS only applicable to models produced from 31/03/2016 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 7: Preventative Maintenance

    Visually check the unit for any potential problems.  Confirm correct heat pump module operation. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 8: Product Changes

    Obsolete Models: Everhot, Solahart & Edwards branded models are no longer available. Rheem branded product is compatible and is to be used if replacement is required. HEAT PUMP MODULE TX Valve: Heat pump modules manufactured from May 2007 have a TX valve with a brass body.
  • Page 9  A retrofittable kit is available which allows existing installed heaters to be upgraded to include the same improvements incorporated into models manufactured from 8/08/2013. The kit, known as the Grundfos Circulator Kit is Rheem part number 290604. NOTE:  The Grundfos circulator, controller and temperature sensors in the kit MUST be fitted together.

  • Page 10: Refrigeration Terms And Their Meaning

    Obsolete Models: Everhot, Solahart & Edwards branded modules are no longer available. Rheem branded product is compatible and is to be used if replacement is required. REFRIGERATION TERMS AND THEIR MEANING Condense – The action of a substance as it releases heat and changes state from a vapour (gas) to a liquid.

  • Page 11: Components And Their Function

    Heating Element – A tubular device containing a resistive element, that converts electrical energy to heat. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 12 The TX valve thermostatically meters the flow of expanding refrigerant to the evaporator, in response to the temperature of the suction line as measured by the bulb. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 13: Controller

    CONTROLLER The 310 Series Heat Pump has an electronic controller in the heat pump module. Power and temperature sensor connections are made at the controller. Power and Sensor Strip Connections Models Manufactured 8/08/2013 – 30/03/16 (or Models Manufactured from 31/03/2016 (or...

  • Page 14: Printed Circuit Board (Pcb)

    For more information on the sensor strip refer to the Sensor Strip Testing section on page 70. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 15: Sensors

    Models Manufactured from 8/08/2013 (Salmson Circulator) or with a Grundfos Circulator Kit Installed TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 16: Operation

    The 310 Series Heat Pump water heaters utilise R134a refrigerant to transfer heat from the atmosphere to the water in the storage tank.
  • Page 17 Mode. Models Manufactured prior to 8/08/2013 (Salmson Circulator) Whist in Standby Mode, the green LED is illuminated and remains on. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 18 If the controller detects that the circulator is running at full speed and the heat exchanger water outlet temperature is greater than 65°C, the controller initiates the Insufficient Water Flow Rate Warning. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 19 S4 detects a temperature greater than 53°C or S5 detects a temperature greater than 50°C. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 20 S3 or S5 have also failed. If S4 and S3 have both failed, or S4 and S5 have both failed, Element Mode will utilise Limp Mode. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 21 LEDS are de-energised until the mechanical thermostat contacts close. When the mechanical thermostat contacts close, the controller is re-energised and normal operation is resumed. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 22 LEDS are de-energised until the mechanical thermostat contacts close. When the mechanical thermostat contacts close, the controller is re-energised and normal operation is resumed. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 23 65°C, at any stage after 4 minutes in Heat Pump Heating), Element Heating is not used – Heat Pump Heating will stop and the system will return to Standby Mode. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support.

  • Page 24: Led Status Codes

    LED STATUS CODES The 310 Series Heat Pump utilises a green and red LED to display information about the heat pump’s operating status and/or fault conditions. Refer to the LED Status Code Tables below for the LED sequences and a description of the condition.

  • Page 25: Operational Sequences

    HX water outlet temperature > 65°C operating for ≥ 4 minutes and circulator speed = 100%? TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 26 HX water outlet temperature > 65°C operating for ≥ 4 minutes and circulator speed = 100%? TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 27 S5 > 50°C? Circulator off Compressor off Evaporator fan off Circulator off TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 28: Faults

    Ambient sensor fault Red LED – 5 flashes Main relay de-energised FIRMWARE: V5.0.6 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 29 Red LED – Flashing sensor failure Red LED – Flashing Main relay de-energised TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 30: Element Mode

    S4 > 53°C or Circ. Speed: 77% S5 > 50°C? S1 < 60°C? Circulator off TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 31 Circulator on Circ. Speed: Fixed S1 < 61°C? Circulator off S4 > 53°C? TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 32: Wiring Diagrams

    HEATING UNIT 310L STORAGE TANK SK7138 - fig 3 EWT REV-DD 5/13 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 33: Models Manufactured From 8/08/13 - 03/16 (Or Grundfos Kit Fitted During Same Range)

    310L STORAGE TANK SK7138 - fig 3 EWT REV-DD 5/13 SK7138 - fig 3 EWT REV-DD 5/13 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 34: Models Manufactured From 14/08/2007 - 7/08/2013 (Salmson Circulator)

    ROBERTSHAW "ST" ADJUSTABLE THERMOSTAT SINGLE POLE, SINGLE THROW GREEN/YELLOW BLUE WHITE HEATING UNIT TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 35: Models Manufactured Prior To 14/08/2007 (Salmson Circulator)

    Models manufactured prior to 14/08/2007 (Salmson Circulator) TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 36: Refrigeration System Diagram

    High water pressure areas will have more complaints of this nature and the use of a pressure limiting valve (PLV) to reduce the household cold water pressure will usually solve most problems. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 37 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. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support.

  • Page 38: Service Technician's Heat Pump Kit

    The kit provides aids for conducting work and diagnosing problems with 270, 325 and 410 Series Heat Pumps, as well as a Heat Pump Service Power Cable that may be used with an adaptor to power the 310 Series Heat Pump (or without the adaptor to power 270, 325 and 410 Series Heat Pumps).

  • Page 39: Sensor Strip Tester

    A Sensor Strip Tester is available in order to assist with performing the tests required to troubleshoot the six individual sensors contained along the length of the sensor strip. The Sensor Strip Tester can be ordered through Rheem Spare Parts, Rheem part number 891012.

  • Page 40: Fault Finding

    “Live” testing to be conducted. Personal Protective Clothing (PPE) shall be worn to reduce the risk of electric shock. Refer to Rheem Safety Procedure on electrical testing. CAUTION: Hot surface. Personal Protective Clothing (PPE) shall be worn to reduce the risk of scalding.
  • Page 41 Is the complaint for a noisy water heater? Blowing fuse / circuit breaker TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 42: No Hot Water

    3. Unit may be short cycling due to faulty thermostat. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 43 Element Mode. If in Element Mode and the element circuit is not operational, the water in the storage tank will be cold and the system can not reset itself automatically. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support.
  • Page 44 Element Mode, as a second fault may be present. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 45 System working. The ambient air temperature may have been too low or too high for normal operation. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 46 Check the circulator impeller for correct? restriction or seizure. TEST 11 Replace the circulator. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 47 Repair faulty compressor capacitor wiring. If the wiring is OK, replace the compressor. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 48 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 49 To reset the heat pump switch the power off, wait for 30 seconds then switch the power back on. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 50: Insufficient Hot Water

    1. Repair leaks. crossed water connections or 2. Isolate crossed water connections. dripping taps? TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 51 Normal Operation Replace the tempering valve   Two Zone Plumbing Option TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 52: Leaking Water Heater

    Inner Cylinder leaking, check for hot spots on the jacket. Replace the storage tank. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 53: Noisy Water Heater

    TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.

  • Page 54: Electrical Insulation Testing

    Check for pinched or damaged wiring touching the heater jacket. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 55 WARNING: Heat must NOT be applied to plastic components. When brazing pipe work a heat shield must be used to prevent the possibility of damage. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 56 Peak connection. Connect to Off Peak tariff. continuous tariff or Off Peak 2, if available. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 57 Red LED: 6 flashes Red LED: 5 flashes Water Flow Fault Ambient Sensor Fault TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 58 Sensor Strip TEST 4 Replacement Kit. Replace the controller. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 59 2°C. Replace the controller. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 60 Is the heat exchanger water outlet sensor working? Replace the sensor. TEST 5 9.16 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 61 9.15 Is there a water flow problem? TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 62 Is the heat exchanger water outlet sensor working? Replace the sensor. TEST 5 Replace the controller. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 63 Is the evaporator sensor working? Replace the sensor. TEST 5 Replace the controller. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 64 Is the ambient sensor working? Replace the sensor. TEST 5 Replace the controller. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 65 TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 66 TEST 15 Is the compressor capacitor Repair faulty compressor capacitor wiring OK? wiring. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 67 – reclaim the refrigerant, evacuate and recharge with the correct quantity. Replace high pressure switch TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 68 1L & 2T: 0Ω 3 & 4: 0Ω 3L & 4L: 0Ω TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 69 Normal voltage is 240V AC. Note: Refer to page 70 for Component Test 4 and page 71 for Component Test 5. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 70: Sensor Strip And Sensor Strip Replacement Kit

    Unplug the sensor strip plug from the controller and using a multimeter set on the resistance (kilo-ohms) scale, measure between the pins of the sensor strip plug. Alternatively, use the Sensor Strip Tester described on page 39, Rheem part number 891012.

  • Page 71: Sensors

    * Note: The sensor plug sockets are quite small. Fine Probe Adapters (available from Rheem Spare Parts, part number WH0020082) can be utilised as probe extensions. Alternatively small pins may be used, however ensure good contact is made when testing.
  • Page 72 22Ω – 26Ω 2.4kW: 2.4kW: 15Ω – 17Ω 15Ω – 17Ω 3.6kW: 3.6kW: TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 73 Using a multimeter set on the DC voltage scale, measure between the two wires on the controller main relay plug. Normal voltage is 6V DC. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 74 A reading of approximately 75.3Ω should A reading of approximately 602Ω should be obtained. be obtained. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 75 Red & blue terminals (Run): 2.2Ω Red & black terminals (Start): 3.3Ω TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 76 Normal voltage is 240V AC. Normal voltage is 240V AC. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 77 (top left pin) and the left terminal (neutral) on the PCB plug. Normal capacitance is 2 micro Farads (2µF). TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 78 81 for more information on refrigerant charge and refrigerant charge fault indications. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 79 The TX valve should now close, resulting in the reversal of the above results. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 80 Normal resistance is 0 ohms (indicating that HPS is closed circuit) TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 81: Refrigerant Charge

    11. If a reading above 0.5Ω is indicated, use the wiring diagrams (from page 32) to determine the location of the faulty earth connection. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 82: Component Replacement Procedures

    6. Reconnect the plumbing; this will push the dip tube into the correct location. 7. Restore the water supply and purge air from the system through hot taps. 8. Restore the power supply. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 83 32. 11. Refit the access cover. 12. Restore the power supply to the water heater. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 84 (which has failed), an externally retrofittable Sensor Strip Replacement Kit is available. The Sensor Strip Replacement Kit must be installed, Rheem part number 299306. TM025: 310 Series Heat Pump Service Instructions...

  • Page 85: Heat Pump Module

    8. Remove the 3 x 6mm bolts retaining the heat pump module to the storage tank. 9. Slide lifting bars (Rheem part number 080151) through the slots provided in the chassis and lift the heat pump module clear of the storage tank.
  • Page 86 8. Remove the two screws retaining controller bracket to the heat pump module chassis and remove controller. 9. Complete reassembly in reverse order of above. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 87  Remove the circulator from the supporting bracket. 7. Complete reassembly in reverse order of above, reinstalling all cable ties as necessary. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 88 8. Remove wiring loom cable ties and remove sensor and wiring. 9. Complete reassembly in reverse order of above, being sure to reinstate insulation around sensors where necessary. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 89 3. Remove the screws securing the elbow fitting to the chassis. 4. Remove the elbow fitting. 5. Complete reassembly in reverse order of above. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 90: Refrigeration System

     Reclaim the refrigerant  Evacuate the refrigeration system TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by Technical Support. All printed copies are deemed uncontrolled.
  • Page 91 14. Isolate power and remove gauges. 15. Refit refrigeration section jacket. 16. Restore the power supply to the water heater. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 92 7. Refit and tighten the TX valve cap to a torque of 10Nm, and apply a ‘leak-lock’ sealant to the cap thread. 8. Remove gauges and refit the air inlet louver. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 93 15. Isolate power and remove gauges. 16. Refit refrigeration section jacket. 17. Restore the power supply to the water heater. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 94 18. Refit the evaporator sensor, fan shroud, partition sheet, evaporator fan assembly, refrigeration section jacket and air louvers. 19. Restore the power supply to the water heater. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 95 8. In all the following steps, ensure all escaping water is caught in a container to prevent the sensor strip from becoming water damaged. 9. Disconnect the top flexible hose from the heat exchanger pipework. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 96 32. Refit the heat exchanger styrene insulation, pipework insulation and the refrigeration section jacket. 33. Restore the power supply to the water heater. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...
  • Page 97 12. Isolate power and remove gauges. 13. Refit refrigeration section jacket. 14. Restore the power supply to the water heater. TM025: 310 Series Heat Pump Service Instructions Rev AF: Issued March 2016 This document is stored and maintained electronically by...

  • Page 98: Document Revision History

    Title: 310 Series Heat Pump Service Instructions Document Nº: TM025 Date of Revision Details of Change Issue Service Instructions issued for 310 Series Heat Pump. 03/07 Addition to flow diagram. 08/07 Solahart, Edwards and Everhot models added. 12/12 All sections completely revised.

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