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B-Vent Specialty Gas Fireplaces
Pilot Adjustment
1. Adjust the pilot screw to provide a properly sized flame.
2. Do not adjust the pilot screw all the way counterclockwise because it will leak gas.
Flame Switch
Units with 6CN and 6CLP Controls
Your fireplace has been equipped with a thermocouple which senses the
flame and shuts off the gas flow to the pilot and main burner in the event
the pilot flame is unstable or becomes extinguished.
Do not alter wiring of the control. Replace the thermocouple only with
components approved by MHSC.
Bypassing the thermocouple may lead
to an explosion which could result in
personal injury.
Units with 6CEN Controls
This fireplace has been equipped with a thermocouple which senses
the flame and shuts off the gas flow to the pilot and main burner in the
event the pilot flame is unstable or becomes extinguished.
Do not alter wiring of the control. Replace the thermocouple only with
components approved by MHSC.
Bypassing the thermocouple may lead
to an explosion which could result in
personal injury.
Venturi Adjustment
Natural gas models have a closed shutter. Opening the air shutter will
cause a more blue flame, but can cause flame lifting from the burner
ports. Propane gas models have an air shutter set at 3/16" (.188 mm)
open. The same conditions as above apply for propane gas.
Air shutter adjustment must only be
done by a qualified gas installer.
24
ADJUSTMENT and MAINTENANCE
Figure 21
1/2"
FP2215
CN CLP pilot flame
Figure 22
FP2216
Figure 23
FP2216
6CEN pilot flame
Closed for Natural Gas
3/16" Open for Propane/LP Gas
5/8"
FP2215
3/8" to 1/2"
Igniter - Sensor
FP2217
53D9009
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