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Note: If pilot goes out, repeat steps 3
through 7. 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 HI and LO.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
The thermostatic control used on this model differs from standard thermostats. You set standard
thermostats to a specific temperature 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 15.
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 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 house's construc-
tion.
Shutting Off Heater
Turn control knob clockwise
OFF position.
1. Remove lower front panel.
2. Follow steps 1 through 5 under Lighting
Instructions, page 15.
3. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
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 15.
16
OPERATION
THERMOSTAT CONTROL OPERATION
TO TURN OFF GAS TO APPLIANCE
MANUAL LIGHTING PROCEDURE
www.usaprocom.com
Thermocouple
Shutting Off Burner Only (pilot
to the
Turn control knob clockwise
PILOT position.
5. Replace lower front panel.
The fire screen or guard designed for this
unvented appliance must be installed prior
to operation.
Ignitor Electrode
Pilot Burner
Figure 18 - Pilot
stays lit )
to the
200158-02A
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