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13.5 Burner and Pilot System
Verify
gas supply is turned on and filled. Consult with plumber or gas
supplier as necessary.
The pilot shield may need to be removed during inspection and
troubleshooting for easier accessibility and observation as shown in
FIGURE 13.2. Reinstall when finished.
Performed by: Qualified Service Person
Frequency: Annually
Action:
•
Vacuum all components of the burner system.
•
Check all accessible gas-carrying tubes, connections, pipes and
other components for leaks.
•
Ensure pilot flame impinges on thermocouple. Flame should
envelop upper 3/8" (10mm) to 1/2" (13mm) of thermocouple and
thermopile. Clean pilot hood and adjust pilot flame at gas valve
for proper flame
impingement. Verify thermocouple connections
and millivolt production.
•
Inspect the operation of the flame safety system Pilot or Flame
rectification device. Visually check pilot light when in operation.
•
Inspect and ensure the lighting of the main burner occurs within
(4) seconds of the main gas valve opening. Check for faulty or
incorrect wiring and correct or replace as necessary. Inspect
primary air openings (burner ports) for blockage, especially near
the pilot.
•
Visually check burner flame pattern when in operation. Flames
should be steady, not lifting or floating.
•
Test and measure the flame failure response time of the flame
safety system. It must de-energize the safety shutoff in no more
than (30) seconds.
Burner Ports
Burner ori ce
FIGURE 13.1 Burner System
66
#CLW-50-MV
R.1 October 2021
Proper pilot ame appearance
Thermopile
Thermocouple
Shown with pilot shield removed for
easier accessibility and observation
Ideal Flame Appearance
Lazy, yellow ames - no adjustment necessary
FIGURE 13.2 Pilot and Burner Correct Flame Appearance
HUSSONG MFG. CO., INC.
SECTION 13 MAINTENANCE
Burner and Pilot System
KOZY HEAT FIREPLACES
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