Low Battery / Manual Bypass; Adjustment; Restricting Vertical Vents; Pressure Adjustment - Napoleon HDX40NT-1 Mode D'emploi

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9.9

LOW BATTERY / MANUAL BYPASS

The life span of the remote batteries depends on various factors: quality of the
EN
batteries, the number of ignitions, the number of charges to the room thermostat set
point, etc.
When the transmitter batteries are low, a Battery Icon will appear on the LCD
display before all battery power is lost. When the batteries are replaced this icon will
disappear.
10.0

ADJUSTMENT

10.1 RESTRICTING VERTICAL VENTS

Vertical installations may display a very active fl ame. If this appearance is not desirable, the vent exit must
be restricted using a restrictor vent kit. Refer to "ACCESORIES" in the "REPLACEMENTS" section for the
appropriate kit. This will reduce the velocity of the exhaust gases, slowing down the fl ame pattern and creating
a more traditional gentle fl ame appearance. Specifi c instructions are included with the kit.

10.2 PRESSURE ADJUSTMENT

Adjust the pilot screw to provide properly sized fl ame. Turn in a
clockwise direction to reduce the gas fl ow.
Check Pressure Readings:
Inlet pressure can be checked by turning screw (A) counter-
clockwise 2 or 3 turns and then placing pressure gauge tubing
over the test point. Gauge should read as described on the chart
below. Check that main burner is operating on "HI".
Outlet pressure can be checked the same as above using
screw (B). Gauge should read as described on the chart
below. Check that main burner is operating on "HI".
AFTER TAKING PRESSURE READINGS, BE SURE TO
TURN SCREWS CLOCKWISE FIRMLY TO RESEAL. DO
NOT OVERTORQUE.
Leak test with a soap and water solution.
Prior to pilot adjustment, ensure that the pilot assembly
has not been painted. If overspray or painting of the pilot
assembly has occurred remove the paint from the pilot
assembly, or replace. Fine emery
cloth or sandpaper can be used to
remove the paint from the pilot hood,
electrode and fl ame sensor.
W415-1349 / A / 03.18.15
(9.5mm - 12.7mm)
Natural Gas Natural Gas
Pressure
(inches) (millibars)
7"
Inlet
(MIN. 4.5")
(MIN. 11.2mb)
3.5"
Outlet
35.24
77.3
B
A
PILOT SCREW
PILOT
ELECTRODE
BURNER
3/8" - 1/2"
FLAME
SENSOR
FLAME MUST ENVELOP
UPPER 3/8" (9.5mm) TO 1/2"
(12.7mm) OF FLAME SENSOR
Propane
(inches)
17.4mb
13"
(MIN. 11")
8.7mb 10"
39.1C
76
°F
Propane
(millibars)
32.4mb
(MIN. 27.4mb)
24.9mb