Fig. 9: Pool Piping for Heat Pump Pool Heaters, Multiple, Primary/Secondary
B
R
A
N
C
H
M
A
IN
B
R
A
N
C
H
M
A
IN
B
R
A
N
C
H
M
A
IN
15
G
P
M
2"
2"
15
G
P
M
2"
2"
15
G
P
M
2"
2"
30
2"
2"
30
2"
2-
1/
2"
30
2"
3"
45
2"
2"
45
2"
3"
45
2"
4"
60
2"
2-
1/
2"
60
2"
3"
60
2"
4"
80
2"
3"
80
2"
4"
80
2"
5"
*S
iz
in
g
ba
se
d
on
1
0
ft/
se
c
flo
w
ra
te
s
M
IN
IM
U
M
P
IP
E
SI
ZE
S
2
U
N
IT
S
3-
4
U
N
IT
S
5-
6
U
N
IT
S
18
