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200028-01A
22
OPERATION
INSPECTING BURNERS
IMPORTANT: Owner’s should check pilot flame pattern and burner flame pattern often.
Incorrect flame patterns indicate the need for cleaning (see Care and Maintenance,
page 23) or service.
WARNING: Only a qualified service person should service and
repair heater. This includes maintenance requiring replacement or
alteration of components.
PILOT FLAME PATTERN
Figure 28 - Correct Pilot Flame Pattern
(Natural Gas shown)
Figure 29 - Incorrect Pilot Flame Pattern
(Natural Gas shown)
Figure 28 shows a correct pilot flame pattern.
Figure 29 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not touching
the thermocouple. This will cause the ther-
mocouple to cool, which shuts the heater off.
If pilot flame pattern is incorrect, as shown
in Figure 29
• turn heater off (see
To Turn Off Gas to Ap-
pliance
, page 21)
• see
Troubleshooting
pages 25 through 27.
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If the burner flame
pattern shows yellow tipping,
follow instructions at bottom of
this page.
Notice: Do not mistake orange flames with
yellow tipping. Dirt or other fine particles enter
the heater and burn causing brief patches of
orange flame.
1. Follow steps 1 through 7 under
Lighting
Instructions
, page 21.
2. With control knob in PILOT position, strike
match, and hold near pilot. Press in control
knob; pilot should light.
3. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob.
4. Make sure the heater screen is in place
before operating heater.
MANUAL LIGHTING PROCEDURE
THERMOSTATIC CONTROL OPERATION
The thermostatic control used on this model
differs from standard thermostats. Standard
thermostats simply turn the burner on and off.
The thermostat used on this heater senses the
room temperature. At times the room may ex-
ceed the set temperature. If so, the burner will
shut off. The burner will cycle back on when
room temperature drops below the set tem-
perature. The control knob can be set to any
comfort level between HIGH (5) and LOW (1).
Note: The thermostat sensing bulb measures
the temperature depending on housing con-
struction.