Adjustments; Pilot Injector And Orifice Replacement; Pressure Check - Napoleon GDS26N Installation And Operating Instructions Manual

9.0 ADJUSTMENTS

9.1

PILOT INJECTOR AND ORIFICE REPLACEMENT

THIS INSTALLATION SHOULD BE DONE BY A QUALIFIED INSTALLER AND SHALL BE IN
COMPLIANCE WITH LOCAL CODES. IN THE ABSENCE OF LOCAL CODES, USE THE CURRENT
CAN1-B149 INSTALLATION CODE IN CANADA, OR THE CURRENT NATIONAL FUEL GAS CODE ANSI
Turn off the electrical and gas supply to the appliance.
A.
Remove the cast front, glass viewing door and log set.
B.
Remove the 2 securing screws. Slide the burner assembly to the right and lift out.
C.
Using a deep socket wrench, remove the main burner orifi ce. A back-up wrench
D.
must be used on the manifold, located below the housing to ensure that the
aluminum tubing does not twist or kink. Replace the correct burner
orifi ce using pipe thread compound.
Loosen nut and replace with appropriate injector
E.
Reinstall the burner ensuring that the Venturi tube fi ts over the orifi ce.
F.
NOTE: Check and adjust, if necessary, the primary air to 3/8" for
propane and 3/16" (4.8mm) for natural gas. Replace the screws.
Turn on the gas supply and check for gas leaks by brushing on a
G.
soap and water solution.
DO NOT USE OPEN FLAME.
Replace the log set. Then light the pilot and main burner to ensure
H.
that the gas lines have been purged.
Replace the glass viewing door and cast front. Turn on the electrical supply to the
I.
appliance.
Purge all gas lines with the glass door removed. Assure that a continuous fl ow is at the
burner before re-installing the door.
9.2

PRESSURE CHECK

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
readas described on the chart below. Check with main burner operating on
"HI".
Outlet pressure can be checked the same as above using screw (B). Gauge
should readas described on the chart below. Check with main burner 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.
WARNING
!
Z223.1 IN THE UNITED STATES.
Natural Gas
Pressure
(inches)
Inlet
(MIN. 4.5")
Outlet
ORIFICE
LOCATION
BURNER
ASSEMBLY
Natural Gas Propane
(millibars) (inches)
7" 17.4mb
13"
(MIN. 11.2mb)
(MIN. 11")
3.5" 8.7mb 10"
39.5B
37
EN
B
A
Propane
(millibars)
32.4mb
(MIN. 27.4mb)
24.9mb
W415-1333 / 06.25.14