TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
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49
In/Out Header
1.
Isolate the pool water from the pool heater
.
2.
Remove the Lower In/Out Header Panel. Refer to „Lower In/Out Header Panel‟
procedure on page 44.
3. Remove the In/Out Header
Access Cover. Refer to „In/Out Header Panel‟ procedure
on page 44.
4.
Remove the Water Temperature Probe. Follow step 3 of the „Water Temperature
P
robe‟ procedure on page 47.
5. Mark and disconnect the wiring from the 45°C Inlet High Limit, Pressure Switch and
55°C Outlet High Limit (if fitted on the In/Out Header).
6.
Remove the Flue Diverter Assembly. Refer to „Flue Diverter Assembly‟ procedure on
page 45.
7.
Remove the Draft Intake Diverter. Follow step 2 of the „Draft Intake Diverter‟ procedure
on page 45.
8. Remove the hex screw retaining the 55ºC High Limit Cover.
Note:
For models fitted
with the rework kit this part is not fitted.
9. Disconnect the wiring to the 55ºC High Limit mounted on the Heat Exchanger outlet
and draw the wiring back through the snap bush (where required).
10. Remove the hex screws retaining the In/Out Header weather shield(s) to the
Refractory Support and remove the weather shield.
Note:
On pool heaters that have
the rework kit fitted the silicone seal between the weather shield and the Flue Collector
will need to be broken.
11. Disconnect the pool pipe work from the pool heater at the In/Out Header Unions.
12. Disconnect the In/Out Header from the Heat Exchanger at the unions and remove the
In/Out Header.
Note:
Ensure the sealing washers are removed from the Heat
Exchanger.
13. Remove the 45°C Inlet High Limit and Water Temperature Probe Adapter (noting the
orientation of the 45°C Inlet High Limit), the Pressure Switch and the 55°C Outlet High
Limit (if fitted) from the In/Out Header and fit to the replacement In/Out Header.
14. Reassemble in reverse order of above. Do not fit the In/Out Header Access Cover or
the Upper and Lower In/Out Header Panels at this stage.
Note:
Ensure the Heat
Exchanger unions and water connection union o-rings are clean before reassembly
and use silicone grease on o-rings if required. Use thread tape when refitting the
Adapter and Pressure Switch. Do not apply excessive thread tape or over tighten as a
breakage could result.
15. Restore the pool water supply, start the pool pump and check for water leaks.
16.
Check the Pressure Switch adjustment. Refer to „Pressure Switch Adjustment‟
procedure on page 42.
17. Complete reassembly.
