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107553
OWNER’S MANUAL
For more information, visit www.desatech.com
OPERATING
HEATER
Continued
Thermocouple
Pilot Burner
Figure 38 - Correct Pilot Flame Pattern
Figure 39 - Incorrect Pilot Flame Pattern
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 38 shows a correct pilot flame pattern.
Figure 39 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 39
• turn heater off (see To Turn Off Gas to
Appliance, page 16)
• see Troubleshooting, pages 19 through 21
Note:
The pilot flame on natural gas units
will have a slight curve, but the flame should
be blue and have no yellow or orange color.
Thermocouple
Pilot Burner
Figure 36 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for
Remote Operation
ON
OFF
REMOTE
O
F
F
P
I
L
O
T
O
N
L
O
I
H
Selector Switch in Remote Position
Control Knob in On Position
Flame Adjustment Knob
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. Remove blockage, blocked burner
flame holes will create soot.
CGHRCTA Series Operation:
2b. Press the AUTO/ON/OFF button on
the hand-held remote control (see Fig-
ure 37). The lights to the left of the
button will show AUTO, ON, or OFF.
• In the ON mode, the burners will
ignite. The heater is in manual
mode when ON is lit.
• In the AUTO mode, the thermostat
in the hand-held remote unit con-
trols the room temperature. To in-
crease the room temperature, press
the top arrow of the TEMP button.
To lower the room temperature,
press the bottom arrow of the
TEMP button. At higher settings
the heater will run longer.
Increases Room
Temperature in
AUTO Mode
Decreases Room
Temperature in
AUTO Mode
Turns Burner On
or Off and Allows
You to Choose
the Auto Setting
Shows Temperature Setting
Figure 37 - Thermostat Hand-Held Remote Control Unit Selections
(CGHRCTA Series Only)
The Log Heater will Automati-
cally Cycle between Pilot and
the Heat Setting that has
been Selected
IMPORTANT:
This remote control
has been specially engineered to
take an air temperature sample ev-
ery 5.5 minutes in the auto mode.
It will not respond immediately to
the temperature setting being
turned up or down.
IMPORTANT:
The hand-held re-
mote 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 remote control unit will
heat up too quickly and turn the
heater off.
3. To turn the burner off, press the
AUTO/ON/OFF button until OFF
lights. The pilot will remain lit.
IMPORTANT:
To turn the pilot off,
manually turn the control knob on the
heater to the OFF position.