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4
REMOVE RIBS
FROM CAP
COMBUSTION
AIR
ROOF BOOT
(FIELD SUPPLIED)
VENT
CONCENTRIC VENT
ROOF INSTALLATION
INSTALLATION -SIDE WALL VENT (SEE FIGURE 5)
1.
Determine the best location for the vent kit.
NOTE: Consider the following when determining the vent kit
location:
A. Vent kit positioned where the vent vapors will not damage
planting/ shrubs or air conditioning equipment or building
structure.
B. Vent kit positioned so it will not be affected by wind eddy
that may allow recirculation of combustion products, or air-
borne leaves, or light snow.
C. Vent kit positioned where it will not get damaged or be
subjected to foreign objects, such as stones, balls, etc.
D. Vent kit positioned where the vent vapors will not be ob-
jectionable.
2.
Cut 1 hole (5 in. diameter) for Vent kit.
3.
Partially assemble the vent kit. Clean the pipe ends and
adjoining sockets with PVC primer (ASTM F-656) and
cement using PVC cement (ASTM D-256).
a. Cement the Wye concentric fitting to larger diameter kit
pipe. (See Figure 1)
b. Cement the rain cap to smaller diameter kit pipe. (See
Figure 1)
4.
Install Wye concentric fitting and pipe assembly through
structure's hole.
NOTE: Kit supplied stainless steel screw will be used to
secure the rain cap to the pipe.
7. Cement furnace or boiler combustion air and vent pipes to
concentric vent assembly. See Figure 6 for proper pipe at-
tachment.
8. CHECKOUT: Operate the furnace or boiler to make sure ALL
pipe joints have fastened and sealed to prevent the escape
of combustion products into the building.
NOTE: Two or more installations require a minimum separa-
tion distance of approximately one inch between vent kits.
Pub. No. 18-CH34D1-7
MAINTAIN 12 IN.
VENT
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
24 IN. ABOVE ROOF
SUPPORT
(FIELD SUPPLIED)
ELBOW
(FIELD SUPPLIED)
COMBUSTION
AIR
5
CONCENTRIC VENT
SIDE WALL
NOTE: To prevent the possiblility of condenate freeze-up, do
not install vent kits one above the other.
NOTE: FLUE GAS DEGRADATION
The moisture content of the flue gas may have a detrimental
effect on some building materials. This can be avoided by
using the roof or chimney venting option. When wall venting
is used on any surface that can be affected by this moisture,
it is recommended that a corrosion resistance shield (24
inches square) be used behind the Vent Terminal. This shield
can be made of wood, plastic, sheet metal, etc. Also, silicone
caulk all cracks, seams, and joints within 3 feet of the Vent
Terminal.
6
CONCENTRIC VENT
SIDE WALL INSTALLATION
INSTALLER'S GUIDE
Page 3
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