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Note: If pilot goes out, repeat steps 2
through 6. This heater has a safety inter-
lock system. Wait one (1) minute before
lighting pilot again.
8. Turn control knob counterclockwise
to desired heating level. The main burner
should light. Set control knob to any heat
level between 1 and 5.
Natural
Gas
Ignitor
Burner
Electrode
Pilot Air
Inlet Hole
Figure 22 - Pilot
The thermostatic control used on this model
differs from standard thermostats. You set
standard thermostats to a specific tempera-
ture such as 72° F. The control of this heater
establishes a "comfort level". In order for the
thermostat to operate effectively, the heater
should be the main source of heat in the
room. Follow the instructions for lighting the
heater on page 18. When the room reaches
the desired comfort level, rotate the control
knob clockwise slowly until the main burner
turns off and the pilot remains on (this position
on the knob will change depending on room
temperature).Turn the knob counter-clockwise
Shutting Off Heater
Turn control knob clockwise
OFF position.
1. Remove front panel.
2. Follow steps 2 through 5 under Lighting
Instructions, page 18.
3. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
200549-02A
OPERATION
Thermocouple
Propane
Gas Burner
Pilot Air
OFF
Inlet Hole
THERMOSTAT CONTROL OPERATION
TO TURN OFF GAS TO APPLIANCE
MANUAL LIGHTING PROCEDURE
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
WARNING: If input gas type
is NG, make sure NG pilot burner
ignites. If input gas type is LP,
make sure LP pilot burner ignites.
OFF
Control Knob
Figure 23 - Burner Patterns
slowly until the main burner reignites. Note the
position of the control knob by the numbers
printed on the knob. Leave the knob in this
position. As the room temperature increases,
the main burner will turn off and the pilot
will remain on. When the room temperature
cools, the heater's main burner will come back
on. If left at this set point the thermostat will
turn the main burner on or off as needed to
maintain the room temperature at the desired
comfort level.
Note: The thermostat sensing bulb reacts
to the temperature depending on housing
construction.
Shutting Off Burner Only
to the
Turn control knob clockwise
PILOT position.
4. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob. Follow step 8 under
Lighting Instructions, page 18.
5. Replace front panel.
HearthSense
IR16T-BB
IR26T-BB
Burners on HIGH
Burners OFF
(pilot stays lit)
to the
19
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