Monessen Hearth BTU/Hr - Manual (Page 21)

20 49D0090 49D0090 21
TO TURN OFF GAS TO HEATER
SHUTTING OFF HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2. If applicable: Turn off all electric power to the heater.
SHUTTING OFF BURNER ONLY (PILOT STAYS LIT)
Turn control knob clockwise
to the PILOT position.
THERMOSTAT CONTROL OPERATION
The thermostatic control used on this heater differs from standard thermostats. Standard thermostats simply
turn on and off the burner. The thermostat used on this heater senses the room temperature. The thermostat
adjusts the amount of gas flow to the burner. This increases or decreases the burner flame height. At times the
room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room
temperature drops below the set temperature.
The control knob can be set to any heat level between HI and LO.
Note: The thermostat sensing bulb measures the temperature of air near the heater cabinet.
This may not always agree with room temperature (depending on housing construction,
installation location, room size, open air temperatures, etc.). Frequent use of your heater will
let you determine your own comfort levels.
MATCH LIGHTING INSTRUCTIONS
1. Open lower access door (see Figure 1, page 6).
2. Follow steps 1 through 6 under Lighting Instructions, page 20.
3. With control knob pressed in, strike match. Hold match to pilot until pilot lights.
4. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
Now follow step 9 under Lighting Instructions, page 20.
5. Close lower access door. Contact your dealer to relace or repair the piezo ignitor.
OPERATING INSTRUCTIONS