Table of Contents
Advertisement
8.0 ADJUSTMENTS
8.1
GAS PRESSURE ADJUSTMENT
Outlet pressure can be adjusted if not measuring 3.5" W.C. (NG)
or 10.0" W.C. (LP).
Pressure can be checked by removing cap (A) using a
8.1.1
3/16 Allen key and replacing it with a 1/8 NPT barb fi tting.
Place pressure gauge tube over the fi tting.
8.1.2
Pressure can be adjusted by removing cap (B) using a
8.1.3
fl at screwdriver, and adjust-
ing the nylon plug with the
same screw driver. Turning
the plug in (clockwise) will
increase the pressure.
8.2
VENTURI ADJUSTMENT
This model has an air shutter that has been factory set open according to the chart below:
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 color to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER!
NOTE: It is important that the venturi sits down tight on the orifi ce.
AIR SHUTTER OPENINGS
LP
3/16" DIA
NG
1/16" DIA
8.3
FLAME CHARACTERISTICS
It is important to periodically perform a visual check of the burner fl ame. Compare them
to the illustration provided.
NPT BARB
1/8"
1/4"
1/8
FITTING
A
PRESSURE
GAUGE
3.5
10
VENTURI
BURNER
AIR
SHUTTER
OPENING
49.3
W415-0689 / A / 06.08.10
19
NATURAL
GAS
PROPANE
GAS
Advertisement
Table of Contents
