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107070-01F
For more information, visit www.desatech.com
For more information, visit www.desatech.com
22
INSPECTING BURNERS
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
Figure 36 shows a correct pilot flame pattern. Figure 37 shows an
incorrect pilot flame pattern. The incorrect pilot flame is not
touching the thermocouple. This will cause the thermocouple to
cool. When the thermocouple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown in Figure 37
• turn heater off (see To Turn Off Gas to Appliance, page 18 [Ther-
mostat-Controlled Models], page 19 [Manually-Controlled
Models], or page 21 [Remote-Ready Models])
• see Troubleshooting, pages 24 through 26
Note:
The pilot flame on natural gas units will have a slight curve,
but flame should be blue and have no yellow or orange color.
OPERATING HEATER
Continued
OPERATING HEATER (REMOTE-READY MODELS)
Optional Hand-Held Remote Operation (Cont.)
INSPECTING BURNERS
Pilot Flame Pattern
Figure 36 - Correct Pilot Flame
Pattern (Your pilot may vary
from pilots shown)
Pilot Burner
Thermocouple
Pilot Burner
Thermocouple
Figure 37 - Incorrect Pilot
Flame Pattern (Your pilot may
vary from pilots shown)
Figure 35 - Thermostat Hand-Held Remote Control Unit (GHRCTB)
Turns Hand-Held
Remote On or Off
and Allows You to
Choose the Manual
Setting
Selects Auto
Setting
Increases Room
Temperature in
AUTO Mode
Locks System to
Prevent Accidental
Ignition
Digital Display
Shows
Temperature and
Settings
Turns Burners
On or Off
Decreases Room
Temperature in
AUTO Mode
THERMOSTAT SERIES (MODEL GHRCTB)
The hand-held remote can be operated using either the manual mode
(MANU) or thermostatic mode (AUTO) (see Figure 35). To select
Fahrenheit/Centigrade mode display, carefully press the ˚C/˚F mode
button with the end of a paper clip or similar blunt object.
Manual Mode
1. Press the POWER and LOCK buttons together to turn on
the hand-held remote control.
2. Press the MANU button to turn on the fireplace.
3. Press the POWER and LOCK buttons together to turn off
the fireplace.
Auto (Thermostatic) Mode
1. Press the POWER and LOCK buttons together to turn on
the hand-held remote control.
2. Press AUTO button to select this mode.
3. Set the desired room temperature by pressing the TEMP
+ or - buttons.
4. Press the POWER and LOCK buttons together to turn off
the fireplace
Note:
Do not leave the hand-held remote in the AUTO mode
close to the fireplace. The radiant heat from the fireplace will
turn off the fireplace. Ideally, place the hand-held remote in the
center of the room facing towards the fireplace.
Note:
Do not hold the hand-held remote for a long time. Body
temperature will affect its operation in the AUTO mode.
Safety Features
When away from home for an extended period of time or as a child
safety feature to prevent accidental ignition of the fireplace, the
receiver ON/OFF/REMOTE switch should be in the OFF position.
Auto Shutoff Feature
1. If the average room temperature exceeds 82 degrees Fahr-
enheit (28 degrees Centigrade), the hand-held remote con-
trol will perform a safety override and shut the fireplace
off. This feature is not available in the MANU mode.
2. The receiver continuously receives signals from the hand-
held remote to control the room temperature. If the hand-
held remote is misplaced, obstructed, or for any reason
cannot transmit to the receiver, the receiver will shut off
the fireplace after 8 minutes.
Key Pad Lock Feature
This feature allows the user to lock/unlock the keypad on the
hand-held remote in the MANU or AUTO mode to prevent
inadvertent operation (i.e. children operating the hand-held re-
mote control, etc.). The keypad is locked in either on or off. Press
the POWER and LOCK buttons together to turn the unit on or off.