31
Venting continued-
5. Install concentric Y fitting and pipe assembly through the structur
e’s hole and field-supplied roof boot/flashing. Do not
allow insulation or other materials to accumulate inside pipe assembly when installing through the hole.
6. Secure assembly to roof structure as shown in Figure 22 using field-supplied metal strapping or equivalent support
material.
NOTICE
Ensure termination height is above the roof surface or anticipated snow level (see Figure 22).
If assembly is too short to meet height requirements, the two pipes supplied in the kit may be replaced by
using the same diameter pipe.
DO NOT
extend the overall dimension by more than 60 in (see Figure 19).
7. Install rain cap and small diameter pipe assembly in roof penetration assembly. Ensure small diameter pipe is
cemented and bottomed in Y concentric fitting.
8. Cement heater combustion-air and vent pipes to concentric y fitting assembly (see Figure 20). See Figure 22 for
proper pipe attachment.
9. Operate heater through one cycle to ensure combustion-air and vent pipes are properly connected and sealed to
concentric vent termination connections.
Figure 22 - Concentric Vent Roof Top Attachment
Horizontal Installation
1. Become familiar with the approved coaxial vent kits from IPEX, as shown in Table 4 and Figures 20 through 22.
WARNING
The 100T250 and 100T300 models are not approved for 2 in
(5.1 cm)
diameter vent pipe. Venting with 2
in
(5.1 cm)
pipe on these models may result in damage to the water heater or cause an unsafe condition.
DO NOT
use 2 in
(5.1 cm)
Vent or Air Intake Pipe on 100T250/300 models.
2. Determine the best location for the termination kit.
NOTICE
Position termination where vent vapors will
NOT
damage plants/shrubs or air conditioning equipment.
Position termination where vent vapors will
NOT
be adversely affected by wind condition.
Position termination where it will
NOT
be damaged or be subjected to foreign objects.
Position termination where vapors will
NOT
be objectionable.
Summary of Contents for 100T199
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