WARNING: Do not bypass the blocked flue switch. To do so could expose the consumer to property
!
damage, personal injury or possible death.
FIG. 1
10' or Less
2' Min.
Chimney
THIS APPLIANCE IS EQUIPPED
WITH A BLOCKED FLUE SWITCH
This switch, when activated, will interrupt the electrical circuit
between the transformer and the gas valve causing the main
burner flame to extinguish. The main burner will not re-light until
the blocked flue switch has been manually reset. To reset the
switch, after locating it between the bottom of the fan shroud
and the top of the draft diverter, simply push the red button on
top of the switch. If the homeowner experiences this problem,
then the vent system must be checked and corrected.
NOTE: An existing vent that has worked for years may not be
adequate for today's appliances because of higher efficiency
requirements that result in lower stack temperatures.
WARNING: Operation of this wall furnace when not
connected to a properly installed and maintained
!
venting system or tampering with the blocked
flue switch can result in Carbon Monoxide (CO)
poisoning and possible death.
(See list of possible causes and corrections on page 23)
All type "B" vents shall extend in a generally vertical direction
with offsets not exceeding 45 degrees, except that a vent system
having not more than one 60 degree offset may be allowed.
Any angle greater than 45 degrees from the vertical is considered
horizontal. The total horizontal run of a vent plus the horizontal
vent connector shall be not greater than 75 percent of the vertical
height of the vent.
Any offsets used should be as far above the drafthood as
possible to allow a venting action to begin before any restriction
is encountered.
More than 10'
Height above
any roof surface
10'
within 10'
horizontally
2' Min.
3' Min.
Chimney
3' Min.
VENTING
FIG. 2: Vent Installation
2' Min.
3'
Ceiling
Plate
Spacers
12' Min.
Ceiling
Spacer
Lances
FIG. 3
RED
BUTTON
BLOCKED
FLUE SWITCH
DRAFT
DIVERTER
RELIEF
OPENING
Page 5
Listed
Vent Top
Storm Collar
Roof Flashing
Ceiling
Plate
Spacers
Listed "BW"
Vent Pipe
Base Plate
Plate
Header Plate
2 x 4
Wall Studs
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Oval to
Round
Adapter
1018029-A