Specifications

TM022 Raypak RHP 33 Pool and Spa Heat Pump Service Instructions REV C
D.O.I: 14/03/2006
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3. Remove the top cover (see procedure 3).
4. Remove the three corner supports by removing 2 bottom screws on each support.
5. Gently remove the defrost thermostat probe from foil surround on left hand side of
evaporator.
6. Remove 3 screws on left hand side of control panel and 1 screw on bottom left hand
side of water inlet connector.
7. Remove tape holding TX probe to evaporator suction line and remove probe.
8. Recover R22 refrigerant.
9. Cut refrigeration suction line between evaporator and first bend to compressor.
10. Unsolder refrigeration octopus fitting from TX valve.
11. Lift out evaporator.
12. Reassemble in reverse order of above paying attention to ensure defrost thermostat
probe is correctly inserted into and covered by foil retainer. Cut pipe work will need to
be joined and re-brazed.
13. Pressurise system to 3000kPa and conduct a leak test.
14. Evacuate system to 300 microns for a period of at least 40 minutes.
15. Recharge system with R22. Refer to “refrigerant charge” on page 11.
Heat Exchanger: (Procedure 21)
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.
Personnel qualified and licensed to work with refrigerants may only carry
out the following repair procedures to the sealed refrigeration system.
The following procedures assume that all work conducted conforms to the
refrigeration code of good practice. During repair the R22 refrigerant must
be recovered, not vented to atmosphere.
1. Remove control panel cover and access panel (see procedures 1 & 2).
2. Confirm with a multi-meter between Active and Neutral at the Compressor
contactor Line terminals that voltage is not present.
3. Remove the evaporator fan (see procedure 14).
4. Un-braze the suction line pipe work from the compressor.
5. Un-braze the suction line pipe work from the heat exchanger after the charging point
joint.
6. Cut the discharge pipe work near the first bend from the compressor so as the heat
exchanger can be lifted out without catching on this pipe work.
7. Remove compressor terminal box cover by squeezing sides in centre to detach tabs
and then pulling forward.
8. Disconnect terminal box cable plug by grasping rubber flap with pliers and pulling
outwards.
9. Remove four tapped screws holding heat exchanger legs to base.
10. Undo hose clamps on heat exchanger inlet and outlet.
11. Push heat exchanger back towards compressor to disconnect inlet and outlet hose
pipes.
12. Lift heat exchanger out over compressor and through fan opening.