48
20306745
VWDV70 Series Gas Fireplace
CLEANING AND MAINTENANCE
TESTING ENGINE / BURNER ASSEMBLY
1. Turn on the gas shut off valve.
2. Follow Lighting Instructions on the unit. Light the unit
according to Homeowner’s Manual. Use soapy water
to check for leaks on the pilot assembly, regulator,
burner and tubing. Turn off unit.
3. Place the correct Gas Conversion rating label plate
and the regulator’s conversion label on the existing
rating plates. Attach conversion label to control valve.
4. Reinstall stones and glass.
Refer to Homeowner’s
Manual
5. Reinstall glass door.
6. Light unit. Check for proper burner
fl
ame appearance.
Refer to Homeowner’s Manual.
DANGER
Never check for gas leak with open fl ame!
BURNER, PILOT AND CONTROL COMPART-
MENT
Keep the control compartment, stones, and burner areas
surrounding the stones clean by vacuuming or brushing
at least twice a year. Make sure the burner porting, pilot
air opening and burner air opening are free of obstructions
at all times.
PILOT FLAME
The
fl
ames from the pilot should be visually checked as
soon as the heater is installed and periodically during
normal operation.
The pilot fl ame must always be
present when the fi replace is in operation. Figure 78
.
The pilot
fl
ame has three distinct
fl
ames, one engul
fi
ng
the sensor, one engul
fi
ng the thermocouple, and the
other reaching to the main burner.
W
ARNING
Turn off gas before servicing fi replace. It
is recommended that a qualifi ed service
technician perform these check-ups at the
beginning of each heating season
Figure 79 -
Burner Flame Appearance
Figure 78 -
Pilot Flame
Thermopile
Sensor
FP2453
BURNER
Inspect area around the injector. Remove any lint or foreign
material with a brush or vacuum.
BURNER FLAME
The flames from the burner should be visually
checked as soon as the heater i
s installed and period-
ically during normal operation. In normal operation, at full
rate, and after operating for about 15 to 30 minutes, the
fl
ame should be yellow.
Figure 79
