268894-UIM-A-0407
Unitary Products Group
15
2.
This furnace must be vented into a fire clay tile lined masonry
chimney only if a source of dilution air is provided, such as by com-
mon venting with a draft hood equipped water heater. If no source
of dilution air is available, Type B vent must be used, or masonry
chimney vent kit 1CK0603 or 1CK0604 must be used. Refer to the
instructions with the kit to properly apply these masonry chimney
kits.
3.
The chimney must extend at least three (3) ft (0.91 cm) above the
highest point where it passes through a roof of a building and at
least two (2) feet higher than any portion of the building with a hor-
izontal distance of ten (10) feet.
4.
The chimney must extend at least five (5) ft (1.5 cm) above the
highest equipment draft hood or flue collar.
HORIZONTAL SIDEWALL VENTING
For applications where vertical venting is not possible, the only
approved method of horizontal venting is the use of an auxiliary power
vent. Approved power venters are Fields Controls Model SWG-4Y or
the appropriate Tjernlund GPAK model. Follow all application and
installation details provided by the manufacturer of the power vent. This
unit may be horizontally vented using 4” (10.2 cm) diameter pipe with a
minimum length of 4.5 feet (1.37 m) and a maximum length of 34.5 feet
(10.82 m) with up to 4 elbows.
VENT PIPING ASSEMBLY
The final assembly procedure for the vent piping is as follows:
1.
Cut piping to the proper length beginning at the furnace.
2.
Deburr the piping inside and outside.
3.
Dry-fit the vent piping assembly from the furnace to the termination
checking for proper fit support and slope. Piping should be sup-
ported with pipe hangers to prevent sagging. The maximum spac-
ing between hangers is 5 feet (1.5 m).
4.
Assemble the vent piping from the furnace to the termination
securing the pipe connections with screws.
VENT CLEARANCES
IMPORTANT:
The vent must be installed with the following minimum
clearances as shown in Figure 19, and must comply with local codes
and requirements.
FIGURE 17:
Typical Sidewall Vent Application
FAN ASSISTED FURNACE
& WATER HEATER
FAN ASSISTED
FURNACES
VENT
PIPE
HOT
WATER
TANK
OPTIONAL
SIDEWALL
VENT SYSTEM
(field supplied)
EXTERIOR
VENT HOOD
FURNACE
FURNACE
FIGURE 18:
Typical Sidewall Vent and Termination Configuration
VENT PIPE
FLUE
PIPE
BURNER
ACCESS
PANEL
CELLAR
WALL
OPTIONAL
SIDEWALL
VENT SYSTEM
(field supplied)
TOP
COVER
BAROMETRIC
DAMPER
