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www.desatech.com
119162-01B 23
Figure 35 - Correct Pilot Flame Pattern
Pilot Burner
Thermocouple
Figure 36 - Incorrect Pilot Flame Pattern
Thermocouple
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 replace 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
remote 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.
INSPECTING bURNERS
Check pilot ame pattern and burner ame pat-
terns often.
pILOT FLAME pATTERN
Figure 35 shows a correct pilot ame pattern.
Figure 36 shows an incorrect pilot ame 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 ame pattern is incorrect, as shown in
Figure 36
• turn heater off (see To Turn Off Gas to Appli-
ance, page 21
• see Troubleshooting, page 25
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue and
have no yellow or orange color.
Pilot Burner
WIRING DIAGRAM
To
Thermopile
To AUTO/OFF/ON
Switch or Remote
Receiver
OPERATING HEATER
Continued
CLEANING AND
MAINTENANCE
WARNING: Turn off heater