Raypak 131 Service Instructions Manual page 51

Burner Assembly
1. Remove the Front Access Panel. Refer to „Front Access Panel‟ procedure on page 43.
2. Remove the Lower In/Out Header Panel. Follow steps 3 & 4 of the „Lower In/Out
Header Panel‟ procedure on page 44.
3. Isolate the gas supply to the pool heater.
4. Disconnect burner feed pipe at burner by unscrewing union in an anticlockwise
direction.
5. Remove the Philips head screws (2 in each end of the Burner Assembly) retaining the
Burner Assembly to the Burner Support Brackets. Lower the Burner Assembly and
remove through the rear of the pool heater. Note: Support the Burner Assembly when
removing the screws or the Burner Assembly will fall.
6. Reassemble in reverse order of above. Do not fit the Lower In/Out Header Panel at
this stage.
7. Restore the gas and power supplies and operate the pool heater and adjust the burner
pressure to that indicated on the rating label (refer to „Burner Pressure Adjustment‟
procedure on page 41).
8. Test for gas leaks using soapy water solution.
9. Complete reassembly.
Burner Manifold & Injectors
1. Remove the Burner Assembly. Refer to „Burner Assembly‟ procedure above.
2. Remove the 4 Philips head screws retaining the Burner Manifold to the Burner
Assembly and remove the Burner Manifold.
3. Remove the Injector(s) by unscrewing in an anticlockwise direction.
4. Reassemble in reverse order of above. Do not fit the Lower In/Out Header Panel at
this stage Note: When fitting the replacement Injectors ensure the sealing washer is
re-fitted.
5. Restore the gas and power supplies and operate the pool heater and adjust the burner
pressure to that indicated on the rating label (refer to „Burner Pressure Adjustment‟
procedure on page 41)
6. Test for gas leaks using soapy water solution.
7. Complete reassembly.
TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
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