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105223
UNVENTED NATURAL GAS LOG HEATER
FIREPLACE MANUFACTURERS INCORPORATED
ON
OFF
REMOTE
O
F
F
P
I
L
O
T
O
N
L
O
I
H
TEMP
STATUS
HI
LO
MAN ON
AUTO OFF
Increases Room
Temperature
Decreases Room
Temperature
Turns Burners
On and Off
Shows Current
Operation Mode
Shows Temperature Setting
Allows burners to be turned
on and off with the hand-
held remote unit.
Figure 23 - Thermostat Hand-Held Remote Control Unit Selections (GHRCT Only)
The log heater will
automatically cycle between
pilot and the heat setting that
has been selected.
Thermocouple
Pilot Burner
Figure 24 - Correct Pilot Flame Pattern
Figure 25 - Incorrect Pilot Flame Pattern
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 24 shows a correct pilot flame pat-
tern. Figure 25 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not touch-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 25
• turn heater off (see To Turn Off Gas to
Appliance, page 15)
•
see Troubleshooting, pages 17 through 19
Thermocouple
Pilot Burner
OPERATING
HEATER
Continued
Figure 22 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for
Remote Operation
Selector Switch in Remote Position
(Optional Remote Control)
Control Knob in
On Position
Flame Adjustment Knob
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the
holes in the fitting at the burner entrance.
These holes may become blocked with dust
or lint. Periodically inspect these holes for
any blockage and clean if needed. Blocked
air holes will create soot.
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no flame
present. If so, turn off heater and let cool.
Either remove blockage or replace burner.
Blocked burner flame holes will create soot.
IMPORTANT:
The hand-held remote
control unit must be near the heater.
Do not keep the hand-held remote
control unit too close to the heater.
The thermostat on the hand-held re-
mote control unit will heat up too
quickly and turn the heater off.
3. Use the STATUS button on the hand-
held remote control unit to see the
operation mode being used and the
temperature setting selected. A red
light will come on beside the opera-
tion mode being used when the sta-
tus button is pressed.
4. To turn the burners off when operat-
ing in the manual mode, press the OFF
button. If operating in the auto mode,
press the MAN button, then press the
OFF button. The pilot will remain lit.
IMPORTANT:
To turn the pilot off,
manually turn the control knob on the
heater to the OFF position.