TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
53
Lower Refractory Retainers and Refractory Supports
1.
Remove the Refractories. Refer to „Refractory & Top Refractory Retainers‟ procedure
on page 52.
2. Remove the front and rear Lower Refractory Retainers.
3. Remove the screws retaining the left and right Lower Refractory Retainers and remove
the left and right Lower Refractory Retainers.
Rear Refractory Support
4. Remove the Burner Assembly
. Follow steps 4 & 5 of the „Burner Assembly‟ procedure
on page 51.
5. Remove the Gas Valve Cover and Gas Valve Enclosure. Refer to steps 5 & 6 of the
„Gas Valve‟ procedure on page 52.
6. Mark and disconnect the wiring from the Gas Valve and draw the wiring back through
the cable entry in the rear Refractory Support.
7. Remove the hex head screws retaining the Rear Refractory Support to the Base Panel
and remove the Rear Refractory Support.
8. Remove the Burner Assembly Support Bracket from the Rear Refractory Support.
Front Refractory Support
9. Remove the Display Panel. Follow steps 2 & 3 of the
„Display Panel‟ procedure on
page 43.
10. Remove the Burner Assembly (if not already removed in step 4 above. Follow steps 4
& 5 of the „Burner Assembly‟ procedure on page 51.
11. Remove the Electrical Control Box from the Front Refractory Support.
Note:
On some
models this will require the removal of all the components within the Electrical Control
Box. Refer to the various replacement procedures for each component.
12. Remove the hex head screws retaining the Front Refractory Support to the Base Panel
and remove the Front Refractory Support.
13. Remove the Burner Assembly Support Bracket from the Front Refractory Support.
14. Reassemble in reverse order of above. Do not refit the Lower In/Out Header Panel at
this stage.
Note
: Ensure the Heat Exchanger ends are aligned with the edges of the
left and right hand Refractories when reinstalling. Ensure the Heat Exchanger unions
and water connection union o-rings are clean before reassembly and use silicone
grease on o-rings if required. Cable tie the Water Temperature Probe wiring to the
main wiring loom.
15. Restore the pool water supply, start the pool pump and check for water leaks.
16. Restore the gas supply.
17. Operate the pool heater, test for gas leaks using soapy water solution and adjust the
burner pressure to that indicated on the rating label (refer to
„Burner Pressure
Adjustment‟ procedure on page 41).
18. Complete reassembly.
