Installing The Vent Termination - International comfort products R9MSB0801716 Installation Instructions Manual

INSTALLATION INSTRUCTIONS
2. Slide the plastic vent pipe adapter over the length of the
vent pipe down to the furnace casing. Mark the pipe
where it is flush with the outlet of the adapter.
3. Remove the pipe from the furnace and the adapter and
cut off any excess pipe.
4. Clean and prime the end of the pipe that is flush with the
vent adapter with a primer that is appropriate for the type
of pipe being used.
5. Re−insert the pipe through the casing into the vent
elbow.
6. Tighten the clamp around the outlet of the vent elbow.
Torque the clamp to 15 lb−in.
7. Apply cement to the end of the pipe and to the inside of
the plastic vent adapter.
8. Slide the adapter over the vent pipe and align the screw
holes in the adapter with the dimples in the furnace
casing.
9. Pilot drill 1/8−in. screw holes for the adapter in the casing
and secure the adapter to the furnace with sheet metal
screws.
10. Loosen the clamps on the rubber vent coupling.
11. Slide the end of the coupling with notches in it over the
standoffs in the vent pipe adapter.
12. Tighten the clamp of the coupling over the vent pipe
adapter. Torque the lower clamp around the vent pipe
adapter to 15 lb−in.
13. Pilot drill a 1/8−in. hole in the combustion air pipe
adapter.
14. Complete the vent and combustion air pipe as shown in
"Install the Vent and Combustion Air Pipe"
NOTICE
FOR POLYPROPYLENE VENTING SYSTEMS
When using polypropylene venting systems, all venting
materials used, including the vent terminations, must
be from the same manufacturer.
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
injury or death.
DO NOT use cement to join polypropylene venting
systems. Follow the polypropylene venting system
manufacturer's instructions for installing polypropylene
venting systems.

Installing the Vent Termination

Roof Terminations
A roof termination of any type will require a 4-in. (102 mm)
flashing for a 2−in. (50 mm ND) concentric vent or a 5−in. (127
mm) diameter flashing for a 3-in. (80 mm ND) concentric vent
kit. For two-pipe or single pipe vent systems, a flashing for each
pipe of the required diameter will be necessary.
It is recommended that the flashing be installed by a roofer or
competent professional prior to installing the concentric vent.
The terminations can be installed on a flat or pitched roof.
Concentric Vent
Single or multiple concentric vent must be installed as shown in
Figure 54. Maintain the required separation distance between
vents or pairs of vents as shown in Figure 54 and all clearance
shown in Figure 52.
440 01 6001 05
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
injury or death.
DO NOT use cement to join polypropylene venting
systems. Follow the polypropylene venting system
manufacturer's instructions for installing polypropylene
venting systems.
NOTE:
manufacturer. These instructions are provided as a reference
only.
Cut one 4−in. (102 mm) diameter hole for 2−in. (50 mm ND) kit,
or one 5−in. (127 mm) diameter hole for 3−in. (80 mm ND) kit in
the desired location.
Loosely assemble concentric vent/combustion air termination
components together using instructions in kit.
Slide assembled kit with rain shield REMOVED through hole in
wall or roof flashing.
NOTE: Do not allow insulation or other materials to accumulate
inside of pipe assembly when installing it through hole.
Disassemble loose pipe fittings. Clean and cement using same
procedures as used for system piping. DO NOT CEMENT
POLYPROPYLENE FITTINGS.
Two−Pipe and Single−Pipe Terminations
Single and two pipe vent must be installed as shown in
Figure 54 and Figure 55.
distance between vents or pairs of vents as shown in
Figure 54 and Figure 55. and all clearance shown in Figure 52
and Figure 53 .
RECOMMENDED
TERMINATIONS
It is recommended that rooftop vent terminations in
excess of 36 inches (1.0 M) in vertical length be
supported by EITHER the Direct Vent Termination Kit
shown in Table 11 or by field-supplied brackets or
supports fastened to the structure.
Cut the required number of holes in the roof or sidewall for vent
and (when used) combustion air pipes. Sidewall holes for
two-pipe vent terminations should be side-by-side, allowing
space between the pipes for the elbows to fit on the pipes.
Holes in the roof for direct−vent (two−pipe) terminations should
be spaced no more than 18−in. (457 mm) apart to help avoid
vent gas recirculation into combustion air intake.
Termination elbows will be installed after the vent and (if used)
combustion air pipe is installed.
Sidewall Terminations
Concentric Vent
NOTE:
manufacturer. These instructions are provided as a reference,
only.
Determine an appropriate location for termination kit using the
guidelines provided in section "Locating The Vent Termination"
in this instruction.
1. Cut one 4−in. diameter hole for 2−in. kit, or one 5−in.
diameter hole for 3−in. kit.
2. Loosely
termination components together using instructions in kit.
Specifications subject to change without notice.
Gas Furnace: R9MSB
WARNING
!
Follow the instructions of the vent terminal
Maintain the required separation
NOTICE
SUPPORT
Follow the instructions of the vent terminal
assemble concentric
FOR VENT
vent/combustion air
47