Figure 5-7_Primary/Secondary Piping with Buffer Tank
DIR #2000528785 00
AUTOMATIC AIR
ELIMINATOR / VENT
BUFFER TANK
COMMON MANIFOLD MUST
BE SIZED TO ACCOMMODATE
COMBINED FLOW RATE FOR
ALL BOILERS
PUMP
DRAIN
SYSTEM
INLET
SYSTEM
OUTLET
1” T&P
CONNECTION
AQUASTAT
LOCATION
(IF EQUIPPED)
NOTICE
The Inlet/Outlet System tappings are shown in the optional location on the side of the tank for pictorial
purposes. The standard location for the system tappings is 180° from the recirculation tappings.
5
Water connections
32
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
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"
