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”
50
Bypass Valve
1.
Isolate the pool water from the pool heater.
2. Remove the Upper In/Out Header
Panel. Refer to „Upper In/Out Header Panel‟
procedure on page 44.
3.
Remove the Lower In/Out Header Panel. Follow steps 3 & 4 of the „Lower In/Out
H
eader Panel‟ procedure on page 44.
4. Disconnect the pool pipe work at the In/Out Header outlet union.
5. Unscrew the Bypass Valve Cap, located on the right hand side of the In/Out Header, in
an anticlockwise direction and remove the Bypass Valve Cap followed by the Bypass
Valve Spring.
6. Using a pair of long nose pliers withdraw the Bypass Valve Disc through the In/Out
header outlet connection.
7. Install the replacement Bypass Valve components ensuring the Bypass Valve Disc is
correctly located onto the Bypass Valve Spring and Bypass Valve Cap spindle.
8. Restore the pool water supply, start the pool pump and check for water leaks
9. Complete reassembly in reverse order of above.
Heat Exchanger
1. Remove the In/Out Header. Follow steps 1-12
of the „In/Out Header‟ procedure on
page 49.
2. Remove the 2 screws retaining the 55ºC Outlet High Limit to the Heat Exchanger and
remove.
3. Remove the remaining screws securing the Flue Collector to the Refractory Supports
and remove the Flue Collector.
4. Lift out the Heat Exchanger.
5. 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 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. Use
heat transfer paste on 55ºC outlet high limit if required.
6. Restore the pool water supply, start the pool pump and check for water leaks.
7.
Check the Pressure Switch adjustment. Refer to „Pressure Switch Adjustment‟
procedure on page 42.
8. Complete reassembly.
