Installation Guide
www.usaprocom.com
23200068-01A
INSPECTING BURNERS
IMPORTANT: Owner’s should check pilot ame pattern and burner ame pattern often.
Incorrect ame patterns indicate the need for cleaning (see Care and Maintenance,
page 24) or service.
WARNING: Only a qualied service person should service and
repair heater. This includes maintenance requiring replacement or
alteration of components.
PILOT FLAME PATTERN
Figure 31 shows a correct pilot ame pattern.
Figure 32 shows an incorrect pilot ame pat-
tern. The incorrect pilot ame is not touching
the thermocouple. This will cause the ther-
mocouple to cool, which shuts the heater off.
If pilot ame pattern is incorrect, as shown
in Figure 32
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 21 or 22)
• see Troubleshooting pages 25 through 28.
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If the burner ame
pattern shows yellow tipping,
follow instructions at bottom of
this page.
Notice: Do not mistake orange ames with
yellow tipping. Dirt or other ne particles enter
the heater and burn causing brief patches of
orange ame.
Approx. 3"-6" Above Top of Logs
More Than 8" Above Top of Logs
Approx. 3"-6" Above Top of Logs
More Than 8" Above Top of Logs
Figure 33 - Correct Burner Flame Pattern
Figure 34 - Incorrect Burner Flame
Pattern
BURNER FLAME PATTERN
Figure 33 shows a correct burner ame pattern. Figure 34 shows an incorrect burner ame
pattern. If burner ame pattern is incorrect then:
• turn heater off (see To Turn Off Gas to Appliance, page 21 or 22).
• see Troubleshooting pages 25 through 28.
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes in the tting at the entrance to the burner. These
holes may become blocked with dust or lint. Periodically inspect these holes for any blockage
and clean as necessary. Blocked air holes will create soot.
Figure 31 - Correct Pilot Flame Pattern
HLA Model Shown
Figure 32 - Incorrect Pilot Flame Pattern
Thermocouple
Thermocouple
Pilot Burner