Napoleon GD45-N Installation And Operation Instructions Manual page 24

24
SYMPTOM
Main burner goes Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON"
out; pilot goes out.
Vent is blocked
4" flexible vent has become
disconnected from fireplace.
Main burner
Blockage in vent.
flame is a blue,
lazy, transparent
Incorrect installation.
flame.
Flames are very Aggressive venting action due
active. to vent height.
Flames are con- Unit is over-fired or under-fired.
sistently too large
or too small.
Carboning oc-
curs.
Air shutter has become
Carbon is being
blocked
deposited on
glass, logs or
Flame is impinging on the
c o m b u s t i o n
logs or combustion chamber.
chamber sur-
faces.
White / grey film Sulphur from fuel is being de-
forms. posited on glass, logs or com-
bustion chamber surfaces.
Exhaust fumes Fireplace is spilling.
smelled in room,
headaches.
Remote wall Wall switch is mounted upside
down
switch is in "OFF"
position; main
Remote wall switch is ground-
burner comes on
ing.
when gas knob is
Remote wall switch wire is
turned to "ON" po-
grounding.
sition.
Faulty valve.
W415-0100 / D / 01.13.04
PROBLEM
Vent is re-circulating
TEST SOLUTION
- check for vent blockage.
- check joint seals and installation.
- re-attach to fireplace.
- remove blockage. In really cold conditions, ice buildup may occur
on the terminal and should be removed as required.
- refer to Figure 16 to ensure correct location of storm collars.
- Restrict vent exit. See "RESTICTING VERTICAL VENTS".
- VENT HEIGHT LESS THAN 10 FEET: close air shutter slightly to
reduce primary air.
- VENT HEIGHT 10 TO 20 FEET: close restrictor plate by 2/3 (to 30°
open) from the normal factory setting.
- VENT HEIGHT MORE THAN 20 FEET: close restrictor plate com-
pletely from normal factory setting.
- 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
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 that the door gasketing is not broken or missing and that
the seal is tight.
- check that both 4" and 7" vent liners are free of holes and well
sealed at all joints.
- check that minimum rise per foor has been adhered to for any
horizontal venting.
- 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
permanently marked.
- check door seal and relief flap seal.
- check for chimney blockage
- check that chimney is installed to building code.
- room is in negative pressure; increase fresh air supply.
- reverse.
- replace.
- check for ground (short); repair ground or replace wire.
- replace.