State Water Heaters SUF 60120 THRU, Instruction Manual

Page: 32 / 80

32
Four Concentric Terminations
1. When installing four concentric terminations through a roof or
through a sidewall in close proximity they may be arranged into
stacked rows of two as shown in
Figure 33
(page 32) or lateral
rows of two as shown in
Figure 34
(page 32) .
2. Four is the maximum number of concentric terminations that
may be installed in a group where all terminations are in close
proximity as shown in
Figure 33
.
A
A
A = 0 - 2 INCHES (0 - 5 cm)
CLOSE PROXIMITY
CONCENTRIC
TERMINATION
CAPS END VIEW
FOUR CONCENTRIC TERMINATIONS
(THROUGH A ROOF OR SIDEWALL
)
Figure 33. Four Concentric Terminations
- Through a Roof or Sidewall
A B
A
FOUR CONCENTRIC TERMINATIONS
(THROUGH A ROOF OR SIDEWALL
)
A = 0 - 2 INCHES (0 - 5 cm)
CLOSE PROXIMITY
B = 24 INCHES (61 cm)
OR GREATER
CONCENTRIC
TERMINATION
CAPS END VIEW
Figure 34. Four Concentric Terminations
- Through a Roof or Sidewall
Groups Of Terminations
1. When installing multiple groups of concentric terminations
through a roof or through a sidewall in close proximity, they
can be installed into stacked groups of four as shown in
Figure
35
. Lateral groups of four as shown in
Figure 34
may be a
more convenient installation arrangement for multiple groups
depending on available space.
A
A B
A = 0 - 2 INCHES (0 - 5 cm)
CLOSE PROXIMITY
CONCENTRIC
TERMINATION
CAPS END VIEW
EIGHT CONCENTRIC TERMINATIONS
(THROUGH A ROOF OR SIDEWALL
)
B = 24 INCHES (61 cm)
OR GREATER BETWEEN
GROUPS OF FOUR
Figure 35. Eight Concentric Terminations
- Through a Roof or Sidewall
MULTIPLE CONCENTRIC TERMINATION CLEARANCES
When installing multiple concentric terminations vertically through
a roof or horizontally through a sidewall ensure the required
clearances (separation) between terminations are maintained.
Ensure multiple terminations are arranged or grouped as required.
Note: These clearances must be maintained to prevent the
recirculation of vent (exhaust) gases to the intake air.
Clearances are measured between the edges of the
concentric termination caps.
When installing multiple concentric terminations through a roof
or through a sidewall the clearances shown in
Figure 31
must be
maintained.
See
Multiple Concentric Termination Arrangements
(page 33) .
Close Proximity & Standard Clearance
1. The clearance between multiple termination caps must be zero
inches (touching) to a maximum of two inches (5 cm), dimension
A -
Figure 31
, when installing concentric terminations in close
proximity. See
Figure 36
(page 33) .
2. The clearance between multiple termination caps must be
increased to a minimum of 24 inches (61 cm), dimension B
-
Figure 31
, when installation in close proximity (above) is not
possible. This is the standard clearance.
A
OR
B
A = 0 - 2 INCHES (0 - 5 cm)
CONCENTRIC
TERMINATION CAPS
END VIEW
TWO CONCENTRIC TERMINATIONS
(THROUGH A ROOF OR SIDEWALL
)
B = 24 INCHES (61 cm)
OR GREATER
CLOSE PROXIMITY STANDARD CLEARANCE
Figure 31. Two Concentric Terminations
- Through a Roof or Sidewall
Three Concentric Terminations
1. When installing three concentric terminations through a roof or
through a sidewall the third termination may be installed in close
proximity as indicated by dimension A in
Figure 32
.
2. If close proximity installation of the third termination is not
possible the third termination may be installed as indicated by
dimension B in
Figure 32
.
A = 0 - 2 INCHES (0 - 5 cm)
CLOSE PROXIMITY
CONCENTRIC
TERMINATION
CAPS END VIEW
THIRD
TERMINATION
THREE CONCENTRIC TERMINATIONS
(THROUGH A ROOF OR SIDEWALL
)
A
A B
B = 24 INCHES (61 cm)
OR GREATER
Figure 32. Three Concentric Terminations
-Through a Roof or Sidewall