Thermopile Replacement - Graco ThermoLazer 200TC Repair Manual

Thermopile Replacement

Thermopile Replacement
Removal
1. Shut off gas valve on LP-tank and disconnect hose.
2. Remove gas safety valve enclosure back cover
(29).
ThermoLazer 300TC/ProMelt Shown
29
3. Remove cover (320) from gas safety valve enclo-
sure (28).
28
320
4. Disconnect thermopile wires from gas safety valve
(13).
12
ti14128a
ti14880a
ti14852a
13
ti14853a
5. Remove wire strain relief fitting (357) from gas
safety valve enclosure (28).
28
357
6. Pull thermopile wire out of gas safety valve enclo-
sure (28).
28
7. Disconnect gas pilot line (71) from flared adapter
(421). Only rotate the nut on gas pilot line (71), while
keeping flared adapter (421) stationary.
421
71
ThermoLazer 200TC/300TC/ProMelt
8. Thermolazer 300
TC
electrode lead (217) from pulse fire igniter (126).
Pull electrode out of wire sleeving.
ThermoLazer 300TC/ProMelt
only
ti14855a
ti14854a
ti25692b
/ProMelt only: Disconnect
ti25740a
3A1320L