Advertisement
PAGE 6
C. Inspect Pilot and Main Burner Flames (Monthly).
1. Remove Front Jacket Panel by lifting and
pulling out.
2. Adjust thermostat to lowest setting.
3. Loosen screws at Burner Observation Cover,
located on base, just above main burners and
remove cover by lifting.
CAUTION
Burner Observation Cover may be hot!
4. Adjust thermostat to highest setting. Verify
operation follows Section C, Sequence of
Operation, of this manual.
5. View flames through observation port.
6. Check pilot flame. See Figure 5. The pilot flame
should be medium blue covering approximately
³⁄₈" to ¹⁄₂" (10 to 12 mm) of the sensing probe. If
the flame is yellow and lazy, follow instructions
TO TURN OFF GAS TO APPLIANCE (see
Figure 4), and contact qualified service agency.
1
Controls maintenance may be part of annual inspection and maintenance by a qualified service agency if annual frequency is
xspecified by controls manufacturer.
HVX USER'S INFORMATION MANUAL
Figure 5: Pilot and Main Burner and Flames
7. Check main burner flames. See Figure 5. The
flames should have clearly defined inner cones
approximately 1½" (40 mm) high and should
have a very sharp blue color characteristic. If
the flame is yellow and lazy, follow instructions
TO TURN OFF GAS TO APPLIANCE (see
Figure 4), and contact qualified service agency.
8. Adjust all thermostats to lowest setting to shut
down boiler.
9. Replace Burner Observation Cover and Front
Jacket Panel.
10. Adjust thermostats to normal setting.
D. Controls (as required by control manufacturer)
1. Safety Relief Valve. Conduct try lever test as
outlined in manufacturer's instruction tag on the
safety relief valve.
2. Low Water Cut-off (if used). Follow instructions
provided by control manufacturer.
E. General Inspection and Maintenance (Annual).
For continued safe operation a qualified service
agency must provide a more detailed inspection of
burners, heat exchanger and vent system, and pro-
vide maintenance as specified in the Installation,
Operation and Maintenance Manual.
1
.
Advertisement
