Napoleon Ascent 42 Serie Manuel D'installation Et D'utilisation page 56

adjustments
EN
11.2 venturi adjustment
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.
note:
It is important that the orifice is securely inserted into the venturi.
VENTURI ADJUSTMENT CHART
FUEL TOP
NG 1/16" (1.5mm)
P 3/8" (9.5mm)
11.3 flame characteristics
It's important to periodically perform a visual check of
the pilot and burner flames. Compare them to the
illustration provided. If any flames appear abnormal,
call a service person.
56
W415-3095 / A / 05.03.22
REAR
1/8" (3.1mm)
3/8" (9.5mm)
PSE THERMOCOUPLE
VENTURI
3/8" - 1/2"
BURNER
(9.5mm - 12.7mm)
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
thermocouple
ORIFICE
SIT ELECTRONIC IGNITION
3/8" - 1/2"
(9.5mm - 12.7mm)
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
Flame sensor
ADD IMAGE
HERE
SIT MILLIVOLT
3/8" - 1/2"
(9.5mm - 12.7mm)
36.1
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
thermocouple &
thermopile
PSE LONG SENSOR
3/8" - 1/2"
(9.5mm - 12.7mm)
Flame must envelop
upper
3/8" to 1/2"
(12.7mm - 9.5mm) of
thermocouple
AIR
SHUTTER
OPENING
33.1
(9.5
La flamm
la thermo
(9.5m
La fla
la s
(9
(9.
t
(9
(9.
La flamm
la thermo
(9.5m