Cleaning And Maintenance; Burner, Pilot And Control Compartment; Pilot Flame; Burner Flame - Monessen Hearth CDV7 Installation And Operating Instructions Manual

Cdvsc7 series, cdv7 series, direct vent gas fireplace

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Table Of Contents

Table of Contents

CDVSC7 & CDV7 Series Gas Fireplace

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.

Millivolt Control

pilot

Signature

Command

System pilot

Figure 64 -

Pilot Flame

Figure 65 -

Burner Flame Appearance