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110361-01G 15
Figure 20 - Pilot
Thermocouple
Pilot Burner
Ignitor Electrode
OPERATING HEATER
Continued
INSPECTING BURNERS
Check pilot ame pattern and burner ame pat-
terns often.
Figure 21 shows a correct pilot ame pattern. Figure
22 shows an incorrect pilot ame pattern. The incor-
rect pilot ame is not touching the thermocouple.
TO TURN OFF GAS
Turn control knob clockwise to the OFF
position.
Turn control knob clockwise to the
PILOT position.
THERMOSTAT CONTROL
The thermostat control knob can be set to any
comfort level between HI and LO. The ther-
mostat will gradually modulate the heat output
and ame height from higher to lower settings
or pilot, in order to maintain the comfort level
you select. The ideal comfort setting will vary
by household depending upon the amount of
space to be heated, the output of the central
heating system, etc.
Note: Selecting the HI setting with the control
knob will cause the burners to remain fully on,
without modulating down in most cases.
MANUAL LIGHTING
1. Follow steps 1 through 5 under Lighting
Instructions, page 14.
2. Depress control knob and light pilot with
match.
3. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 8 Lighting
Instructions, page 14
This will cause the thermocouple to cool. When the
thermocouple cools, the heater will shut down.
If pilot ame pattern is incorrect, as shown in
Figure 22
•
turn heater off (see To Turn Off Gas to Appliance)
• see Troubleshooting, page 18
Note: The correct pilot ame on natural gas units
will have a slight curve, but ame should be blue
an have no yellow or orange color.
Figure 21 - Correct Pilot Flame Pattern
(Natural Gas Shown)
Figure 22 - Incorrect Pilot Flame Pattern
(Natural Gas Shown)
Thermocouple
Pilot Burner
Thermocouple
Pilot Burner
Figure 23 - Correct Flame Pattern with
Control Knob Set to High Flame
Figure 24 - Incorrect Flame Pattern with
Control Knob Set to High Flame
Approx.
3-6"
Above
Top of
Logs
More
Than 8"
Above
Top of
Logs
Figure 23 shows a correct burner ame pattern.
Figure 24 shows an incorrect burner ame pattern.
If burner ame pattern is incorrect,
•
turn heater off (see To Turn Off Gas to Appliance)
• see Troubleshooting, page 18