Adjust the pilot screw to provide properly sized fl ame. Turn in a clockwise
direction to reduce the gas fl ow.
Inlet pressure can be checked by turning screw (A) counter-clockwise until
loosened and then placing pressure gauge tubing over the test point. Gauge
should read 7” (minimum 4.5”) water column for natural gas or 13” (11”
minimum) water column for propane. Check that main burner is operating
on “HI”.
Outlet pressure can be checked the same as above using screw (B). Gauge
should read 3.5” water column for natural gas or 10” water column for propane.
Check that main burner is operating on “HI”.
AFTER TAKING PRESSURE READINGS, TIGHTEN SCREWS FIRMLY TO
SEAL. DO NOT OVER TORQUE.
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ADJUSTMENTS
VENTURI ADJUSTMENT
Air shutter adjustment must be done by a qualifi ed
installer!
Air shutters have been factory set open according to the chart below:
These setting are for (maximum) horizontal termination.
Closing the air shutter will cause a more yellow fl ame, but can lead to
carboning. Opening the air shutter will cause a more blue fl ame, but
can cause fl ame lifting from the burner ports. The fl ame may not appear
yellow immediately; allow 15 to 30 minutes for the fi nal fl ame colour to be
established.
Adjustment may be required depending on fuel type, vent confi guration and
altitude.
FLAME CHARACTERISTICS
PRESSURE ADJUSTMENT
Maximum Input Ratings:
NG
LP
50,000 btu/hr
50,000 btu/
hr
A
B
PILOT SCREW
LP
NG
1/2”
1/32”
PILOT
BURNER
FLAME MUST ENVELOP
UPPER 3/8” TO 1/2” OF
FLAME SENSOR
FLAME
SENSOR
ELECTRODE
VENTURI
AIR SHUTTER
OPENING
ORIFICE
It’s important to periodically perform a visual check of the pilot and burner
fl ames.
Compare them to the illustrations provided.
11.
Re-install the burners, media screens, and media trays. Light the pilot and main burner to ensure that the gas lines have been purged. Refer to the
lighting instructions in your fi replace installation manual. Once all systems have been checked, replace the glass media.
Purge all gas lines with the glass door off.
Ensure that a continuous fl ow is at the burner before replacing the door.
12.
Re-secure the door. Turn on the electrical supply to the fi replace.
