UTICA BOILERS UCS 380 Installation, Operation And Maintenance Manual page 19

FIGURE 5-6 - Multiple Boilers with Common Primary Secondary, Zone Valves and (Optional) Indirect
CH/System
12" (305mm) Maximum
Separation required if Labor
Saver is NOT used.
5 - HYDRONIC PIPING
DHW Pump
Pump
1
System
Temperature
Sensor
1
UP TO 6 BOILERS
Refer to pump manufacturer
literature for proper pump sizing.
17
1
# Boilers on
Pipe Branch
2
3
4
5
6
7
8
1
PN 240011662 Rev. K [01/31/2020]
Pipe
Size
2
2½
3
3
4
4
4