16
104352
UNVENTED NATURAL GAS FIREPLACE
DESA INTERNATIONAL
Locate the blower switch by opening lower
louver on fireplace. Blower switch is lo-
cated at lower left inside louver door.
This thermostat-controlled blower has
three settings: ON, OFF, and AUTO. In
the ON position, the blower will operate
constantly. In the OFF position, the blower
will not operate. In the AUTO position,
the blower will start when the thermostat
senses a sufficient increase in firebox tem-
perature.
Note:
Your gas logs and thermostat
blower will not turn on and off at the
same time. The fireplace may run for
several minutes before the blower turns
on. After the heater modulates to the pilot
position, the blower will continue to run.
The blower will shut off after the firebox
temperature decreases.
Note:
It is safe to operate fireplace with
blower turned off. However, the blower helps
distribute heated air from the fireplace.
OPTIONAL BLOWER
OPERATION
OPERATING
FIREPLACE
Continued
Figure 29 - Correct Pilot Flame Pattern
Pilot Burner
Thermocouple
Figure 30 - Incorrect Pilot Flame Pattern
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 29 shows a correct pilot flame pat-
tern. Figure 30 shows an incorrect pilot
flame pattern. The incorrect pilot flame is
not properly heating the thermocouple.
When the thermocouple cools, the heater
will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 30
• turn heater off (see To Turn Off Gas to
Appliance, page 15).
• see Troubleshooting, pages 17 through 19.
Pilot Burner
Thermocouple
INSPECTING
BURNERS
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.
• In AUTO mode (GHRCT only),
the room temperature is controlled
by the thermostat in the hand-held
remote control unit. To increase the
room temperature, press the top
arrow of the TEMP button. To
lower the room temperature, press
the bottom arrow to the TEMP
button. At higher settings the
heater will run more.
IMPORTANT:
The hand-held re-
mote control unit must be near the
heater. Do not keep the hand-held
remote control unit too close the
heater. The thermostat on the
hand-held remote 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 oper-
ating in the MANUAL mode, press
the OFF button. If operating in the
auto mode, press the manual 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 or set remote selector
switch to OFF position.
