9
VEnT aSSEMblY inSTallaTiOn
VENTING
- By definition of a Direct Vent Sealed Combustion Furnace, it must be vented to the outside
atmosphere and also draw combustion air from outdoors. Therefore, it is imperative that the vent be
unobstructed and there must be a seal between the exhaust and intake (caulking) . Refer to the vent
assembly installation in the manual. The vent must be straight. There can be no offsets or turns in
the vent. All vent tubes which connect to the furnace exhaust and intake must overlap
a minimum
of 1/2” on intake, and 1 1/4” on exhaust.
Check your furnace model number for vent installation
procedures. Vents cannot be altered as supplied from the factory.
CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO
PREVENT MOISTURE INSIDE FURNACE
COMPARTMENT. APPLY CAULKING GENEROUSLY
AROUND PERIMETER OF VENT CAP AND ACROSS
CENTER AS SHOWN. CENTER PUTTY STRIP IS
ESSENTIAL.
OUTSIDE SKIN (PANEL)
TUBE, INTAKE AIR
WITH GASKET
VENT CAP AND
EXHAUST
DETAIL "A"
2" MAXIMUM WALL THICKNESS
TUBE, AIR INTAKE
WITH GASKET
VENT CAP AND
EXHAUST TUBE
SEE DETAIL "A"
OUTSIDE SKIN (PANEL)
REMOVABLE PANEL OF
COACH WALL MUST
SEAL WATER TIGHT
FURNACE CABINET
FRONT
ELECTRICAL
CONNECTION
GAS CONNECTION
INSIDE WALL
(2) 2 1/4"
DIA. HOLES
Figure 2 • SF & SFQ MODELS
17 3"
4
8 7"
8
6 13"
16
3 13"
16
3 3"
8
2" MAXIMUM WALL THICKNESS
TUBE, AIR INTAKE
WITH GASKET
VENT CAP AND
EXHAUST TUBE
SEE DETAIL "A"
OUTSIDE SKIN (PANEL)
REMOVABLE PANEL OF
COACH WALL MUST
SEAL WATER TIGHT
FURNACE CABINET
FRONT
ELECTRICAL
CONNECTION
GAS CONNECTION
INSIDE WALL
(2) 2 1/4"
DIA. HOLES
CL
9
4
3"
CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO
PREVENT MOISTURE INSIDE FURNACE
COMPARTMENT. APPLY CAULKING GENEROUSLY
AROUND PERIMETER OF VENT CAP AND ACROSS
CENTER AS SHOWN. CENTER PUTTY STRIP IS
ESSENTIAL.
DETAIL "A"
VENT CAP AND
EXHAUST
TUBE, INTAKE AIR
WITH GASKET
OUTSIDE SKIN (PANEL)
Figure 2A • SH MODELS
