Quantity of Panels
“A”
in.
m
3
12’-9”
3,89
4
17’-0”
5,18
5
21’-3”
6,5
6
25’-5”
7,77
7
29’-9”
9,06
8
34’-0”
10,36
9
38’-3”
11,65
10
42’-6”
12,95
11
46’-9”
14,24
12
51’-0”
15,54
8.4 Flow Rate through Array
The recommended fl ow rate through the array is 3 to 10 GPM (11 to 35 liters) per panel. A fl ow
rate of 5 GPM (18 liters) is recommended. The actual fl ow rate is not that shown on the pool
pump because of pressure losses in the system. The actual fl ow rate may be determined by using
an in-line fl ow meter or calculated the time it takes to fi ll a bucket of known capacity.
8.5 Control Module Location
Determine the location of the electronic control based on access to power, ease of cutting into
existing piping at the fi lter outlet, and piping to and from the array. (Refer to the control manu-
facturer’s instructions).
8.6 Pipe Size
Determine the length and size of the pipe required. Use only PVC pipe. Black ABS piping de-
grades when exposed to sunlight. Use pipe cleaner before gluing with PVC glue. If connecting to
ABS piping, use PVC glue, not yellow ABS glue. Allow several hours for glue to set before turning
on pump.
For runs of less than 80 ft (25 meters), either feed or return, use 1 ½” pipe. For runs of more than
80 ft. (25 meters) a 2” pipe is recommended. Pipe runs should be planned so that the panels and
piping drain when the system is not active.
8.7 Piping Arrangement (Figure 7)
a. Always pipe the array
reverse-return
. End-feed end-return systems are not effi
cient.
b. If possible, install the return pipe at the top of the array; this will eliminate the air in the
system.
Solar Pool System
Installation Manual
10
