®
34
Bank and Plumbing Movement
APPENDIX C
—
Reference Tables & Figures
Figure 22 | Bank and Plumbing Mounting
There are multiple ways to accommodate for thermal expansion and contraction in a bank. The recommended way to mount a bank of panels is to fix-
mount the top header of the centermost panel in a bank though alternate locations are permissible. When mounting a bank, prime consideration must
be given to allow for movement in the plumbing as well, especially if the fix-mounted panel is away from the plumbing side of the bank as depicted in
images
A, B
and
C
. Notice the use of a Plumbing Expansion Hose in these figures, the
Offset Method
, and the difference between
Fixed Supports
and
Guide
Supports
. Bank expansion can be calculated and used to determine the total plumbing movement needed. See
Table 6
in
Appendix C for details.
*
It is recommended for the
Fix-Mounted Collector
to be at a the centermost point in a bank as seen in image
C
of
Figure 22
when possible.
DIAGRAM LEGEND:
Guide
Support
Fixed
Support
Plumbing
Expansion
Joint
Fixed Points
~4ft
Fix-Mounted Collector*
Bank Moves up to 5X
(±1/4”) = 2.5”
C
oll
ec
to
r
0
C
oll
ec
to
r
1
C
oll
ec
to
r
2
C
oll
ec
to
r
3
C
oll
ec
to
r
4
C
oll
ec
to
r
5
Plumbing
Expansion
Joint
L/4 = 7” min
~10ft
A.
Fix-Mounted Collector
Bank Moves up to 5X
(±1/4”) = 2.5”
C
oll
ec
to
r
0
C
oll
ec
to
r
1
C
oll
ec
to
r
2
C
oll
ec
to
r
3
C
oll
ec
to
r
4
C
oll
ec
to
r
5
Plumbing
Expansion
Joint
L/4 =
7” min
~10ft
~4ft
C
oll
ec
to
r
5
C
oll
ec
to
r
4
C
oll
ec
to
r
3
C
oll
ec
to
r
2
C
oll
ec
to
r
1
Bank Moves up to 10X (±1/4”) = 5”
C.
B.
Fix-Mounted Collector*
Bank Moves up to 5X
(±1/4”) = 2.5”
C
oll
ec
to
r
0
C
oll
ec
to
r
1
C
oll
ec
to
r
2
C
oll
ec
to
r
3
C
oll
ec
to
r
4
C
oll
ec
to
r
5
Plumbing
Expansion
Joint
Fixed
Support
C
oll
ec
to
r
0
C
oll
ec
to
r
1
C
oll
ec
to
r
2
C
oll
ec
to
r
3
C
oll
ec
to
r
4
C
oll
ec
to
r
5
~4ft
~4ft
~10ft
~16in
Hose
Guide
Support
