Napoleon BGNV42N Installation And Operation Instructions Manual page 16

16
SYMPTOM
Pilot goes out while Gas piping is undersized.
standing; Main
burner is in 'OFF'
position.
Flames are con- Unit is over-fired or under-
sistently too large fired.
or too small.
Carboning occurs.
Carbon is being Air shutter has become
deposited on glass, blocked
logs or combustion
chamber surfaces. Flame is impinging on the
logs or combustion cham-
ber.
White / grey film Sulphur from fuel is being
forms. deposited on glass, logs or
combustion chamber sur-
faces.
Exhaust fumes Fireplace is spilling.
smelled in room,
headaches.
Main burner flame Not enough combustion air
is a blue, lazy,
transparent flame.
Remote wall switch Wall switch is mounted up-
is in "OFF" position; side down
main burner comes
Remote
on when gas knob
grounding.
is turned to "ON"
Remote wall switch wire is
position.
grounding.
Faulty valve.
W415-0377 / C / 09.23.05
PROBLEM
- turn on all gas appliances and see if pilot flame flutters, diminishes
or extinguishes, especially when main burner ignites. Monitor appli-
ance 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-clock-
wise 2 or 3 turns and then placing pressure gauge tubing over the
B A
test point. Gauge should read 7" (minimum 4.5") water column for
natural gas or 13" (11" minimum) water column for propane. Check
that main burner is operating on "HI".
Outlet pressure can be checked the same as above using screw (B).
Gauge should read 3.5" water column for natural gas or 10" water
column for propane. 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.
- 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.
- check the input rate: check the manifold pressure and orifice size
as specified by the rating plate values.
- check to ensure proper venting action
- clean the glass with a recommended gas fireplace glass cleaner.
DO NOT CLEAN GLASS WHEN HOT.
If deposits are not cleaned off regularly, the glass may become per-
manently marked.
- check for chimney blockage
- check that chimney is installed to building code.
- room is in negative pressure; increase fresh air supply.
- room is in negative pressure; increase fresh air supply
- reverse.
wall switch is - replace.
- check for ground (short); repair ground or replace wire.
- replace.
TEST SOLUTION