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43
W415-2180 / A / 11.28.16
EN
HDX52-2
NG 3/8” (9.5mm)
P 7/16" (11mm)
This appliance has an air shutter that has been factory set open according
to the chart below:
Regardless of venturi orientation, closing the air shutter will cause a more
yellow flame, but can lead to carbonization. Opening the air shutter will
cause a more blue flame, but can cause flame lifting from the burner ports.
The flame may not appear yellow immediately; allow 15 to 30 minutes for
the final flame colour to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER!
AIR
SHUTTER
OPENING
VENTURI
BURNER
ORIFICE
49.1
9.3 VENTURI ADJUSTMENT
MAXIMUM INPUT RATE
NG 55,000 BTU/HR
P 55,000 BTU/HR
It is important to periodically perform a visual check of the pilot
and burner fl ames. Compare them to the illustration provided. If
any fl ames appear abnormal, call a service person.
FLAME MUST ENVELOP
UPPER 3/8” (9.5mm) TO 1/2”
(12.7mm) OF FLAME SENSOR
PILOT
BURNER
ELECTRODE
FLAME
SENSOR
3/8” - 1/2”
(9.5mm - 12.7mm)
54.1B
9.4 FLAME CHARACTERISTICS
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