Napoleon HDX40 Guide Rapide page 2

VENTURI ADJUSTMENT
Air shutters have been factory set open according to the
chart below:
HDX/CHDX40-2 7/16" (11.1mm)
These setting are for (maximum) horizontal termination.
Adjustment may be required depending on fuel type, vent
confi guration and altitude.
Access the air shutter, located on the bottom of the burner
pan. Remove the four screws attached to the burner pan.
Slide the burner pan to the left roughly 1" then lift up.
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.
AIR SHUTTER
OPENING
Air shutter adjustment must be done by a
qualifi ed installer!
Max. Input Ratings HDX/CHDX40-2
P
GN
Wolf Steel Ltd., 24 Napoleon Rd., Barrie, ON L4M 0G8 Canada
ADJUSTMENTS
P NG
3/16" (4.8mm)
VENTURI
ORIFICE
36,000 BTU/hr
40,000 BTU/hr
FLAME CHARACTERISTICS
ELECTRODE
SENSOR
PRESSURE ADJUSTMENT
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 OVERTORQUE.
LEAK TEST
A
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PILOT
BURNER
FLAME
FLAME MUST ENVELOP
UPPER 3/8" TO 1/2" OF
FLAME SENSOR
B
PILOT SCREW
W415-1116 / A / 01.25.19
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