Monessen Hearth WDV500 cleaning and maintenance, Burner, Pilot and Control Compartment, burner

WDV Series Gas Fireplace cleaning and maintenance

WARNING	Turn off gas before servicing fireplace. It is
	recommended that a qualified service technician
	perform these check-ups at the beginning of
	each heating season

Burner, Pilot and Control Compartment

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 flames from the pilot should be visually checked as soon as the heater is installed and periodically during normal operation. The pilot flame must always be present when the fireplace is in operation. Figure 51. The pilot flame has three distinct flames, one engulfing the sensor, one engulfing the thermocouple, and the other reaching to the main burner.

burner

Inspect area around the injector. Remove any lint or foreign material with a brush or vacuum.

Sensor

Thermopile

FP2453

Figure 51 -

Pilot Flame

Burner Flame

The flames from the burner should be visually checked as soon as the heater is installed and periodically during normal operation. In normal operation, at full rate, and after operating for about 15 to 30 minutes, the flame should be yellow. Figure 582

If the flame is blue and candle-like in appearance, adjust glass or add more glass over ports.

NOTE: The type of installation, vent system configuration, and wind effects may cause the flame patterns to vary.

Figure 52 -

Burner Flame Appearance

FP2436

36 78D0011