17
No. of
Elbows
4
3
2
Max. Straight Vent Length*
4" (100mm) PVC or CPVC
* Not including the concentric termination.
30' (9.0m)
36' (10.8m)
42' (12.6m)
1
48' (14.4m)
Maximum Vent Length Adjustment Dip switches.
3
6
9
12
15
18
21
24
27
30
33
36
39
42
45
48
51
54
0.90
1.80
2.70
3.60
4.50
5.40
6.30
7.20
8.10
9.00
9.90
10.80
11.70
12.60
13.50
14.40
15.30
16.20
m10234ft
Vent lengthElbows
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Number of
pieces*
4” Pipe
<Maximum Vent Length and Reduced Input Configurations>
1
2
Short length using 4" (100mm)pipe
Long length using 4" (100mm)pipe
* Table assumes straight vent pieces are 3’ (0.9m) each.
Shorter or longer vent pieces may also be used up to the maximum
allowed vent length.
2
The BTUH input of the
appliance will be reduced
by up to 2%.
1
The BTUH input of the
appliance will be reduced
by up to 2%.
Horizontal
Vertical
Hanger
4" (100mm)
Intake
4" (100m
m
)
Exhaust
Straps
Slope the
Vent Upward
Strap
1" (25mm) to
2" (50mm)
Insert Bird Screen **
in End of Termination
** Not supplied with
water heater,
order separately.
12"(30cm)
4"(100mm)
Exhaust*
4"(100mm)
Intake*
4" pipe
> 1 ft. Min.
=
•
•
•
•
•
•
The concentric termination may be shortened,
but not lengthened from its original factory supplied length.
Terminate at least 12" (300mm) above grade or above snow line.
Slope the horizontal vent 1/4" upwards for every 12" (300mm).
Use a condensation drain if necessary.
In the Commonwealth of Massachusetts a carbon
monoxide detector is required for all side wall
horizontally vented gas fuel equipment.
Please refer to Technical Bulletin TB 010606 for full
installation instructions.
•
•
•
•
4" (100mm) PVC or CPVC pipe may be used with
the concentric termination.
Maintain the same vent pipe diameter from the
water heater flue to the termination.
Do not exceed the maximum vent lengths as
specified in this section.
Use maximum 6" (150mm) section of pipe to make the
connection between the reducing couplings and the
Exhaust and Intake Flue of the Water Heater.
•
Install a securing strap to prevent movement of the termination.
There must be a 1" (25mm) to 2" (50mm) clearance
between the outside wall and the air intake section
of the termination as illustrated on the left.
For vertical installation, terminate at least 7' (2.1m)
above a public walkway, 6' (1.8m) from the combustion
air intake of any appliance, and 3' (0.9m) from any
other building opening, gas utility meter, service
regulator etc.
4" (100mm ) PVC Concentric Termination
IPEX Concentric Vent Kits : 196021
Plastic Rain Cap**
(PRC-1)
**Not supplied with water
heater, order separately.
4" pipe
4"x4" coupling
4" pipe
4"x4" coupling