Thermocouple – L.B. White I-34 Infraconic Ignition User Manual

Page 18

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1188

LEAD END OF THERMOCOUPLE

THERMOFUSE

5/16"

COVER

UPPER NUT

THERMOCOUPLE
LEAD

COVER

LOWER NUT

THERMOCOUPLE INSTALLED

UPPER RETAINING NUT

KEY HOLE SLOT

COVER

THERMOCOUPLE INSTALLED

INJECTOR TUBE

THERMOCOUPLE BODY

RETAINING NUT

COVER

THERMOCOUPLE TIP
LOCATION HOLE IN PLATE

1/2 IN TO 9/16 IN

FINISHED

THERMOCOUPLE

POSITION

1. Remove the thermocouple at the pilot gas control

valve. See Fig. 20.

2. Loosen the thermalfuse 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. Transfer nuts and cover to replacement

thermocouple. Position as shown in Fig. 22.

6. Position the thermalfuse under the retaining clip and

tighten the 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

FIG. 22

FIG. 23

THERMOCOUPLE

SCREW

RETAINING

CLIP

THERMOCOUPLE

INJECTOR

BODY

THERMAL

FUSE

VEN

TUR

I TU

BE

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