Figure 5-5_Primary/Secondary Piping of Multiple Boilers
30
Installation & Operation Manual
*Please note that these illustrations are meant to show system piping concept only, the installer is responsible
for all equipment and detailing required by local codes.
NOTICE
5
Water connections
COMMON MANIFOLD SIZE (Min.)
Model
Number of Units
2
3
4
5
6
7
8
2500
6"
7"
8"
8"
10"
10"
12"
3000
6"
7"
8"
10"
10"
12"
12"
3500
7"
8"
9"
10"
10"
12"
12"
4000
7"
8"
9"
10"
12"
12"
14"
5000
7"
8"
9"
10"
12"
12"
14"
DIR #2000528661 00
MAKEUP WATER SYSTEM
TO SYSTEM
COMMON MANIFOLD
CAP EACH MANIFOLD
TO FLOOR DRAIN
12” MAX OR
4 PIPE DIAMETERS