Adjustments; Pilot Burner Adjustment; Venturi Adjustment - Napoleon GS50N Installation And Operating Instructions Manual

36

7.0 ADJUSTMENTS

7.0 ADJUSTMENTS
7.1

PILOT BURNER ADJUSTMENT

EN
7.1 PILOT BURNER ADJUSTMENT
Adjust the pilot screw to provide properly sized  ame. Turn in a clockwise
Adjust the pilot screw to provide properly sized fl ame. Turn in a clockwise
direction to reduce the gas  ow.
direction to reduce the gas fl ow.
Inlet pressure can be checked by turning screw (A)
Inlet pressure can be checked by turning screw (A)
counter-clockwise until loosened and then placing
counter-clockwise until loosened and then placing
pressure gauge tubing over the test point. Gauge should
pressure gauge tubing over the test point. Gauge should
read 7" (178mm) (minimum 4.5"(114mm)) water column for
read 7" (178mm) (minimum 4.5"(114mm)) water column for
natural gas or 13" (330mm) (11" minimum (279mm)) water column
natural gas or 13" (330mm) (11" minimum (279mm)) water column
for propane. Check that main burner is operating on "HI".
for propane. Check that main burner is operating on "HI".
Outlet pressure can be checked the same as above using screw (B).
Outlet pressure can be checked the same as above using screw (B).
Gauge should read 3.5" (89mm) water column for natural gas or 10"
Gauge should read 3.5" (89mm) water column for natural gas or 10"
(254mm) water column for propane. Check that main burner is operating
(254mm) water column for propane. Check that main burner is operating
on "HI".
on "HI".
AFTER TAKING PRESSURE READINGS, TIGHTEN SCREWS
AFTER TAKING PRESSURE READINGS, TIGHTEN SCREWS
FIRMLY TO SEAL. DO NOT OVER TORQUE. LEAK TEST.
FIRMLY TO SEAL. DO NOT OVER TORQUE. LEAK TEST.
7.2

VENTURI ADJUSTMENT

7.2 VENTURI ADJUSTMENT
This appliance has an air shutter that has been factory set open according
This appliance has an air shutter that has been factory set open according
to the chart below:
to the chart below:
Regardless of venturi orientation, closing the air shutter will cause a more
Regardless of venturi orientation, closing the air shutter will cause a more
yellow flame, but can lead to carboning. Opening the air shutter will cause a
yellow flame, but can lead to carbonization. Opening the air shutter will
more blue flame, but can cause flame lifting from the burner ports. The
cause a more blue flame, but can cause flame lifting from the burner ports.
flame may not appear yellow immediately; allow 15 to 30 minutes for the
The flame may not appear yellow immediately; allow 15 to 30 minutes for
final flame colour to be established.
the final flame colour to be established.
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
AIR SHUTTER ADJUSTMENT MUST ONLY BE DONE BY A QUALIFIED
INSTALLER!
INSTALLER!
FRONT BURNER
FRONT BURNER
NG 1/4" (6.4mm)
NG 1/4" (6.4mm)
LP 1/4" (6.4mm)
P 1/4" (6.4mm)
W415-1427 / 12.23.14
REAR BURNER
REAR BURNER
1/2" (13mm)
1/2" (13mm)
1/2" (13mm)
1/2" (13mm)
PILOT
BURNER
THERMOCOUPLE
THERMOCOUPLE
39.3
VENTURI
VENTURI
BURNER
BURNER
ORIFICE
49.1
AIR SHUTTERS
FRONT BURNER
PILOT
THERMOPILE
BURNER
THERMOPILE
39.3B
AIR
AIR
SHUTTER
SHUTTER
OPENING
OPENING
ORIFICE
49.1
REAR BURNER
W415-1427 / A / 09.27.17
37
EN