OWNER'S OPERATION AND INSTALLATION MANUAL UNVENTED (VENT-FREE) Gas Compact Classic Hearth Dual Burner Fireplace VDCFTNA,VDCFTPA,VDCFRPA,VDCFRNA
www.desatech.com
113133-01C 27
INSPECTING BURNERS
Check pilot ame pattern and burner ame pat-
terns often.
Figure 47 shows a correct pilot ame pattern.
Figure 48 shows an incorrect pilot ame pattern.
The incorrect pilot ame is not touching the ther-
mocouple. This will cause the thermocouple to
cool. When the thermocouple cools, the replace
will shut down.
If pilot ame pattern is incorrect, as shown in
Figure 48
• turn replace off (see To Turn Off Gas to Appli-
ance, page 22 for Thermostat-Controlled Mod-
els or page 24 for Remote-Ready Models)
• see Troubleshooting, page 29
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.
Figure 47 - Correct Pilot Flame Pattern
(Propane/LP Remote-Ready Shown)
Pilot Burner
Thermocouple
Figure 48 - Incorrect Pilot Flame Pattern
(Propane/LP Remote-Ready Shown)
Pilot Burner
Thermocouple
Figure 49 shows a correct burner ame pattern.
Figure 50 shows an incorrect burner ame pattern.
The incorrect burner ame pattern shows sporadic,
irregular ame tipping. The ame should not be
dark or have an orange/reddish tinge.
Note: When using the replace the rst time, the
ame will be orange for approximately one hour
until the log cures.
If burner ame pattern is incorrect, as shown in
Figure 50
• turn replace off (see To Turn Off Gas to Appli-
ance, page 22 for Thermostat-Controlled Mod-
els or page 24 for Remote-Ready Models)
• see Troubleshooting, page 29
Figure 49 - Correct Burner Flame Pattern
Figure 50 - Incorrect Burner Flame
Pattern
CLEANING AND
MAINTENANCE
CAUTION: You must keep
control areas, burner and cir-
WARNING: Failure to keep
BURNER INjECTOR HOLDER AND
The primary air inlet holes allow the proper
amount of air to mix with the gas. This provides
a clean burning ame. Keep these holes clear of
dust, dirt, lint and pet hair. Clean these air inlet
holes prior to each heating season. Blocked air
holes will create soot. We recommend that you
clean the unit every three months during operation
and have replace inspected yearly by a qualied
service person.










