Rear Vent Connection, Vertical Vent Rise With Horizontal Rear Termination; Rear Vent Connection, Vertical Vent Rise With Horizontal Snorkel Termination - Valor 534 XAN Installation And Owner's Manual

4.4 Rear Vent Connection, Vertical Vent Rise
with Horizontal Rear Termination
See figure 7.
Can be used with either #551DVK standard vent kit or
another terminal cap and accessories.
Adapter #817VAK, two 90° vent elbows and pipe lengths
will be required.
(See venting options section of this manual).
The location requirements are shown in the table and graph
below and figure 7.
A: From floor to top of
vent duct
B: Frame front face to
outside wall
C: Frame front face to
inside wall
D: Vertical pipe run
between elbows
E +E : Total horizontal
1 2
pipe run including
terminal pipe but
excluding adapter and
elbows
F: Clearance to
combustible materials
above horizontal pipe run
inside building (Outside
wall shields/thimbles)
G: Clearance to
combustible materials
below horizontal pipe run
H: Clearance to
combustible materials all
round vertical pipe run
and at sides of horizontal
pipe run
For installations with a horizontal rear termination, the
combination of horizontal and vertical vent pipes must be
within the allowed area shown in Graph 1. A minimum
vertical pipe run of 12" is necessary.
Example a: If a vertical rise of 3ft is required, the
horizontal run must not be more than 7ft 9".
Example b: If a horizontal run of 3ft 6" is required, the vertical run must be at least 1ft 9".
If the horizontal pipe run is redirected using a further 90ºelbow, the maximum total horizontal run allowed is reduced
by 3ft. to 7ft. Redirection using 45º elbows reduces the maximum total horizontal run by 18" per elbow.

4.5 Rear Vent Connection, Vertical Vent Rise with Horizontal Snorkel Termination

For "semi-basement" situations where a snorkel accessory alone does not raise the termination sufficiently above ground
level. The dimensional requirements in section 4.4, figure 7, and graph 1 apply.
Adapter #817VAK, two 90º vent elbows, pipe lengths and a snorkel termination will be required. A thimble kit may also be
necessary. (See venting options section of this manual).
Minimum Maximum
4ft 3½" 9ft 3½"
(131cm) (283cm)
- 12ft 5½"
(380cm)
2ft 5½" -
(75cm)
12" 6ft
(30.5cm) (183cm)
- 10ft
(305cm)
With no
elbows in
horizontal
run
1" -
(12.7cm)
5
1 / " -
16
(3.3cm)
2" -
(5.1cm)
Figure 7 Rear vent, vertical rise, rear termination
Graph 1
10