Specifications

TM022 Raypak RHP 33 Pool and Spa Heat Pump Service Instructions REV C
D.O.I: 14/03/2006
40
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13. Reassemble in reverse order of above. Cut pipe work will need to be joined and re-
brazed.
14. Pressurise system to 3000kPa and conduct a leak test.
15. Evacuate system to 300 microns for a period of at least 40 minutes.
16. Recharge system with R22. Refer to “Specifications” table on page 5.
Water Manifold Assembly: (Procedure 22)
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.
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. Undo and remove hose clamp holding sensor to water manifold.
4. Gently prise sensor up from hole with a flat bladed screwdriver and remove sensor.
5. Remove water pressure switch hose from water manifold by closing spring clamp with
pliers whilst gently pulling hose.
6. Undo hose clamps on water manifold inlet and outlet connections to heat exchanger.
7. Remove clamp holding outlet white flexible hose to control panel by removing screw.
8. Undo 2 nuts and bolts holding water manifold bracket to base of Heat Pump and lift out
water manifold.
9. Reassemble in reverse order of above.
Expansion (TX) Valve: (Procedure 23)
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 tape holding TX probe to evaporator suction line and remove probe.
4. Recover R22 refrigerant.
5. Un-braze and remove TX valve.
6. Reassemble in reverse order of above. Cut pipe work will need to be joined and re-
brazed.
7. Pressurise system to 3000kPa and conduct a leak test.