User Guide

7
Figure 9: 1 Inch Main Burner Flame
Figure 7: Pilot Burner Flame, Honeywell Q3481
Figure 8: 40mm Main Burner Flame
C. Inspect Pilot and Main Burner Flame (Monthly).
1. Adjust thermostat to lowest setting.
2. Remove front removable panel. See Figure 3.
3. Locate Pilot Observation Port. See Figure 2.
4. Check pilot burner ame. See Figure 7.
The pilot produces three (3) ames. The center
ame should be steady, medium hard blue
enveloping 3/8 to ½ inch of sensing probe. If ames
are yellow and lazy, follow instructions TO TURN
OFF GAS TO APPLIANCE (see Figure 4) and
contact a qualied service agency.
Figure 6: Typical Vent System Installation
5. Adjust thermostat to highest setting.
6. Check main burner ames. See Figure 8 or 9.
Flame should have clearly dened inner cones with
no yellow tipping. Orange-yellow streaks caused
by dust should not be confused with true yellow
tipping. If yellow ames are observed, follow
instructions TO TURN OFF GAS TO APPLIANCE
(see Figure 4) and contact a qualied service agency.
7. Adjust thermostat to normal setting.
D. ScheduleInspectionbyQualiedServiceAgency
(Annual or at Beginning of Heating Season). For
continued safe operation a qualied service agency
must provide a more detailed inspection of burners, heat
exchanger and vent system, and provide maintenance
as specied in Installation, Operating and Service
Instructions.