30
441 01 2101 05
Specifications are subject to change without notice.
4. Type
−
B vent where required, refer to Note 1 above.
5. Four
−
in. (102 mm) single
−
wall (26 ga. min.) vent must
be used inside furnace casing and when the Downflow
Vent Guard Kit is used external to the furnace.
6. Accessory Downflow Vent Guard Kit, required in
downflow installations with lower vent configuration.
7. Chimney Adapter Kit may be required for exterior
masonry chimney applications. Refer to Chimney
Adapter Kit for sizing and complete application details.
8. Secure vent connector to furnace elbow with (2)
corrosion
−
resistant sheet metal screws, spaced
approximately 180
apart.
9. Secure all other single wall vent connector joints with
(3) corrosion resistant screws spaced approximately
120
apart. Secure Type
−
B vent connectors per vent
connector manufacturer’s recommendations.
NOTE
:
For the following applications, use the minimum vertical heights as specified below. For all other applications,
follow exclusively the National Fuel Gas Code
FURNACE
ORIENTATION
VENT
ORIENTATION
FURNACE
INPUT(BTUH/HR)
MINIMUM VENT
DIAMETER
IN. (mm)*
MINIMUM VERTICAL
VENT HEIGHT
FT. (M)**
Downflow
Vent elbow left, then
up Figure 39
110,000
5 (127)
12 (3.6)
Downflow
Vent elbow up then
110,000
5 (127)
10 (3.0)
Downflow
Vent elbow up, then
110,000
5 (127)
10 (3.0)
*4 in. (102 mm) inside casing or vent guard
**Including 4 in. (102 mm) vent section(s)
NOTE: All vent configurations must also meet National Fuel Gas Code venting requirements NFGC.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing, safety
glasses and gloves when handling parts and servicing
furnaces.
CAUTION
!
NOTE
: Vent connector length for connector sizing starts at
furnace vent elbow. The 4
−
in. (102 mm) vent elbow is
shipped for upflow configuration and may be rotated for other
positions. Remove the 3 screws that secure vent elbow to
furnace, rotate furnace vent elbow to position desired,
re
−
install screws. The factory
−
supplied vent elbow does NOT
count as part of the number of vent connector elbows.
The vent connector can exit the furnace through one of 5
locations on the casing.
1. Attach the single wall vent connector to the furnace
vent elbow, and fasten the vent connector to the vent
elbow with at least two field
−
supplied,
corrosion
−
resistant, sheet metal screws located 180
apart.
NOTE
: A flue extension is recommended to extend from the
furnace elbow to outside the furnace casing. If flue extension
is used, fasten the flue extension to the vent elbow with at
least two field
−
supplied, corrosion
−
resistant, sheet metal
screws located 180
apart. Fasten the vent connector to the
flue extension with at least two field
−
supplied, corrosion
resistant sheet metal screws located 180
apart.
2. Vent the furnace with the appropriate connector as
shown in Figure 35
3. Determine the correct location of the knockout to be
removed.
4. Use a hammer and screwdriver to strike a sharp blow
between the tie points and work the slug back and forth
until the slug breaks free.
BURN HAZARD
Failure to follow this caution may cause personal
injury.
Hot vent pipe is within reach of small children when
installed in downflow position.
See the following instruction.
CAUTION
!
An accessory Vent Guard Kit is REQUIRED for downflow
applications where the vent exits through the lower portion of
the furnace casing. (See Figure 39) Refer to the Vent Guard
Kit Instructions for complete details.
The horizontal portion of the venting system shall slope
upwards not less than 1/4
−
in. per linear ft. (6 mm/.3 M) from
the furnace to the vent and shall be rigidly supported every 5
ft. (1.5 M) or less with metal hangers or straps to ensure there
is no movement after installation.
SIDEWALL VENTING
This furnace is not approved for direct sidewall horizontal
venting.
In the U.S.:
Per section 12.4.3 of the NFPA 54 / ANSI
Z223.1
−
2012, any listed mechanical venter may be used,
when approved by the authority having jurisdiction.
Select the listed mechanical venter to match the Btuh input of
the furnace being vented. Follow all manufacturer’s
installation requirements for venting and termination included
with the listed mechanical venter.