Monessen Hearth CDVR33N/PV7;N/PE7;N/PSC7 - Manual (Page 48)

CDVSC7 & CDV7 Series Gas Fireplace
48 69D3011
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.
CleanInG anD MaInTenanCe
w
a
R
n
In
G 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.
FP1943
pilot flame
Thermopile
Thermocouple
FP1943
LG638
CDV7 log flame
Figure 65 -
Burner Flame Appearance
LG638
Figure 64 -
Pilot Flame
FP2453
hooded pilot flames
Sensor
Thermopile
FP453
Signature
Command
System pilot
Millivolt Control
pilot