Napoleon Fireplaces BGNV40-P - Manual (Page 8)

8
W415-0813 / A / 04.19.10
3.0 VENTING
!
WARNING
RISK OF FIRE, MAINTAIN SPECIFIED AIR SPACE CLEARANCES TO VENT PIPE AND APPLIANCE.
3.1 VENTING SAFETY SWITCH
This thermally activated switch, located in front of
the draft hood, senses an increase in temperature
and acts as a safety shut-off, see "A". It shuts down
the gas to the main burner in the event of a severe
downdraft of air or a blocked or disconnected chimney
fl ue. If the fl ue is blocked or has no "draw", the safety
switch will automatically shut off the supply of gas to
the main burner within 10 minutes.
This switch must be manually reset by depressing the
plunger.
The one wire running from the vent safety switch is
attached to terminal 1 of the valve, see "B". The other
wire (laying loose in the valve control area) may be
attached to a wall switch or thermostat.
TAMPERING WITH THE SAFETY SWITCH CAN RESULT IN CARBON MONOXIDE POISONING AND
POSSIBLE DEATH.
!
WARNING
PLUNGER A
HI LIMIT
SWITCH
B
This is a vented appliance and must be connected to a chimney in accordance with the current installation
codes. In absence of local codes, install to the current CAN/CGA B149 in Canada or to the current National
Fuel Gas Code ANSI Z223.1 in the United States. This model can be common-vented.
A minimum fi ve inch diameter (5" Ø) B-vent or class A vent is required. A minimum 5' vent height is required.
Secure the B-vent to the exhaust collar on the appliance top with 3 screws. In cold climates, the use of a B-
vent and an insulated chase is recommended.
Under extreme vent confi gurations, allow several minutes (5-15) for the fl ame to stabilize after ignition. Provide
a means for visually checking the vent connection to the appliance after the appliance is installed.