Vertical Convection Heaters
Owner’s Manual • Workman & Norseman
23
FIG. 24
1/16 INSIDE EDGE OF PILOT HEAD
TO SIDE OF ELECTRODE
THERMOCOUPLE - ALL MODELS
The thermocouple may need replacement if the burner
goes out after allowing the thermocouple to heat up for
an extended period of time.
1.
Workman 225 Plus and Workman 100
Plus Natural Gas:
Pull back on the thermocouple
to disengage its mounting clip from the support
bracket. See Fig. 25, Workman 225 Plus shown.
FIG. 25
2.
Norseman 200 Plus and Norseman 250:
Use a wrench and loosen the attachment nut at the pi-
lot assembly. See Fig 26, Norseman 200 Plus shown.
FIG. 26
3. Loosen the thermocouple connector nut which is
threaded into the safety control valve. See Fig. 27,
Workman 225 Plus shown. Remove the thermocouple.
FIG. 27
■
For thermocouples using a mounting clip, ensure
the thermocouple is completely pushed into its
bracket when replacing. Failure to do so may
cause burner outage.
■
When connecting the thermocouple to the safety
control valve, thread the thermocouple
fi
nger tight
to the valve, then snug it in with a wrench.
To determine if the thermocouple is defective:
Connect an ohm meter between the ends of the
thermocouple.
-- A good thermocouple will show some level of
resistance from end to end.
-- A defective thermocouple will show an open
circuit on the ohm meter
NUT
NUT
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