Napoleon Arlington GVFS20N Installation And Operation Instructions Manual page 15

SYMPTOM
Pilot goes out while Gas piping is undersized.
s t a n d i n g ; M a i n
burner is in 'OFF'
position.
Flames are consis- Unit is over-fi red or under-
tently too large or fi red.
too small. Carbon-
ing occurs.
Carbon is being de- Air shutter has become
posited on logs or blocked
combustion cham-
Flame is impinging on the
ber surfaces.
logs or combustion cham-
ber.
Not enough combustion air.
E x h a u s t f u m e s
smelled in room,
headaches.
Not enough ventilation air.
Flame is impinging on the
logs or combustion cham-
ber.
Remote wall switch Wall switch is mounted up-
is in "OFF" position; side down
main burner comes
Remote wall switch is ground-
on when gas knob
ing.
is turned to "ON"
Remote wall switch wire is
position.
grounding.
Faulty valve.
PROBLEM
- turn on all gas appliances and see if pilot fl ame fl utters, diminishes or
extinguishes, especially when main burner ignites. Monitor appliance
supply working pressure.
- check if supply piping size is to code. Correct all undersized piping.
- 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.
Check with burner operating on "HI". Gauge should read 7" (minimum
B A
4.5") water column for natural gas or 13" (11" minimum) water column
for propane.
Outlet pressure can be checked the same as above using screw (B).
Check with burner operating on "HI". Gauge should read 3.5" water
column for natural gas or 10" water column for propane.
AFTER TAKING PRESSURE READINGS, BE SURE TO TURN SCREWS
CLOCKWISE FIRMLY TO RESEAL. DO NOT OVERTORQUE.
Leak test with a soap and water solution.
- ensure air shutter opening is free of lint or other obstructions.
- check that the logs are correctly positioned.
- open air shutter to increase the primary air. See air shutter open-
ings, page 15.
- check the input rate: check the manifold pressure and orifi ce size as
specifi ed by the rating plate values.
- increase fresh air supply. (Use one of the methods described in ANSI
Z223.1 Section 5.3 or the applicable local code.)
- increase fresh air supply. (Use one of the methods described in ANSI
Z223.1 Section 5.3 or the applicable local code.)
- check that the logs are correctly positioned.
- open air shutter to increase the primary air. See air shutter open-
ings, page 15.
- check the input rate: check the manifold pressure and orifi ce size as
specifi ed by the rating plate values.
- reverse.
- replace.
- check for ground (short); repair ground or replace wire.
- replace.
TEST SOLUTION
15
W415-0559 / 02.15.06