17
1. Close fuel supply valves to inlet of heater.
2. Disconnect hose from inlet of heater.
3. Remove thermocouple from pilot safety control valve.
4. Loosen injector tube screw.
5. Loosen compression nut at outlet of pilot relight
regulator.
6. Pull control assembly from heater.
7. Remove pressure switch with adapter from safety
control valve.
8. To assemble, reverse these procedures.
PRESSURE SWITCH
FIG. 14
PILOT RE-LIGHT VALVE
COMPRESSION NUT
INJECTOR BODY
THERMOCOUPLE
INJECTOR TUBE
SCREW
PRESSURE
VALVE
PILOT SAFETY
CONTROL VALVE
ADAPTER
1. Close fuel supply valves to inlet of heater.
2. Remove hose from inlet of heater.
3. Loosen pilot tube compression nuts at outlet of pilot
regulator.
4. Loosen injector tube screw.
5. Pull control assembly from heater.
6. Remove pressure switch from pilot safety control.
7. Remove pilot safety control from adapter at pilot
relight regulator inlet.
8. Remove adapters from regulator inlet and outlet.
9. To assemble, reverse these procedures.
PILOT RELIGHT REGULATOR
FIG. 15
ADAPTER
PILOT RE-LIGHT
REGULATOR
COMPRESSION NUT
PILOT SAFETY
CONTROL VALVE
PRESSURE SWITCH
PRESSURE SWITCH
ADAPTER
INJECTOR TUBE
SCREW
Summary of Contents for I17
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