L.B. White I-34 Infraconic Pilot Ignition - Manual (Page 18)

18
THERMOCOUPLE INSTALLED
UPPER RETAINING NUT
KEY HOLE SLOT
COVER
THERMOCOUPLE NUT
INJECTOR BODY
THERMALFUSE
THERMOCOUPLE
RETAINING CLIP
SCREW
1. Remove the thermocouple at the pilot gas control
valve. See Fig. 20.
2. Loosen the thermofuse retaining clip screw.
See Fig. 20.
3. Loosen upper retaining nut on thermocouple.
See Fig. 21.
4. Remove the thermocouple, with nuts and cover, from
the heater assembly.
5. Tr a n s fe r n u t s a n d c ove r to r e p l a c e m e n t
thermocouple. Position as shown in Fig. 22.
6. Position the thermalfuse under the retaining clip and
tighten the position screw.
7. Angle the thermocouple tip to allow passage through
the keyhole slot and into the thermocouple location
hole of the burner plate. Pull up on the thermocouple
lead so the lower nut is tight against the inside of the
heater housing. Tighten upper nut against the
housing. See Fig. 23.
8. The installed finished position of the thermocouple is
1/2 - 9/16 inch from the top edge of thermocouple to
the heater housing. See Fig. 23.
9. Thread the nut on thermocouple into gas control
valve. Tighten finger tight and snug in place. DO NOT
OVERTIGHTEN.
FIG. 20
FIG. 21
THERMOCOUPLE
INJECTOR TUBE SCREW
INJECTOR BODY SCREW
PILOT RE-LIGHT REGULA
COMPRESSION NUT
THERMOCOUPLE
NUT
INJECTOR BODY
THERMOCOUPLE
RETAINING CLIP
MAIN ORIFICE
INJECTOR BODY VIEWED FROM ORIFICE END
1. Remove the thermocouple at the pilot control valve.
2. L o o s e n t h e i n j e c to r b o d y s c r ew s e c u r i n g t h e
thermocouple retaining clip.
FIG. 18
3. Loosen compression nut at outlet of pilot relight
regulator.
4. Loosen injector tube screw.
5. Pull injector body from heater.
6. Using a 6 mm hex nut driver, remove orifice from the
injector body by turning counter-clockwise.
7. Reinstall orifice head back into the injector body. Do
not overtighten the orifice as overtightening can strip
the threads in the injector body.
FIG. 19
BURNER ORIFICE
VALVE