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”.
44
55027500
55127505 / 55127507
Kit part number
890313
Kit part number
890314
Contents Contents
49°C thermostat
051329
55°C thermostat
051335
Filter Drier
180021
Filter Drier
180021
TX Valve
180024
TX Valve
180024
55027500 identification label
126528
55127505 identification label
126526
Compressor label
121027
55127507 identification label
126527
Refrigerant change label
126529
Compressor label
121027
Rework instruction
890315
Refrigerant change label
126529
Rework
instruction
890315
NOTE:
At the completion of the conversion a blue label part number 126529 (supplied in
the kit) must be fixed to the water heater below the rating label detailing the change of
refrigerant as required by the ‘Ozone Protection Regulation 1997’ Part 3 Division 1 Section
22 ‘Labelling of refrigeration equipment during servicing’.
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.
3. Replace
Compressor
Controlling
Thermostat (Refer to Procedure 4
Note: It is possible that some corrosion may have formed between the nut and stud
retaining the thermostat which can result in the stud snapping off the tank when
attempting to remove the nut. Prior to commencing step b lubricate the stud and nut
with WD40 or similar lubricant and use care when removing the nut.
4. Remove Air Inlet Louvre (Refer to Procedure 8)
5. Remove the Refrigeration Section Jacket (Refer to Procedure 9)
The fan motor can commence operation without warning. Failure to isolate
the power may result in serious injury if the fan commences operation during
the removal process.
6. Reposition evaporator thermostat (551 series
only)
a. Remove the thermostat capillary bulb from
the evaporator by pulling upwards.
Note
:
The bulb can be held reasonably tight by
the finning and therefore difficult to
remove.
b. Reinsert the probe into the evaporator as
shown in the diagram opposite. Ensure the
bulb is inserted well into the evaporator
finning.