Monessen Hearth CDV7 cleaning and maintenance, Burner, Pilot and Control Compart- ment, burner

CDVSC7 & CDV7 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 Compart- ment

Keep the control compartment, logs, and burner areas surrounding the logs 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 pres- ent when the fireplace is in operation. Figure 64. The pilot flame has three distinct flames, one engulfing the thermopile, one engulfing the thermocouple or sensor, 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.

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 and slightly taller than the rear log. Figure 65

If the flame is blue and only in the center, turn off unit and let cool. After unit is cool, remove logs and check to make sure rock wool is placed correctly. Replace logs.

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

Thermocouple

Thermopile

Millivolt Control

Pilot

	FP1943
	Sensor
Signature	Thermopile
Command
System Pilot

Figure 64 -

Pilot Flame

FP2453

Figure 65 -

Burner Flame Appearance

LG638

48 69D3011