UTICA BOILERS UCS-240 Installation, Operation & Maintenance Manual page 18

FIGURE 5-6 - Multiple Boilers Without Manifold, with Common Primary Secondary, Zone Valves and
(Optional) Indirect
CH/System
5 - HYDRONIC PIPING
Pump
System
Temperature
Sensor
UP TO 6 BOILERS
18
1
# Boilers on Pipe
PIPE
# BOILERS ON
Pipe Branch Size
PIPE BRANCH SIZE
1 1-1/4
2 2
2 2
3 2-1/2
3 2½
4 3
5
3
4 3
6
4
7
4
5 8 3 4
6 4
7 4
8 4
P/N 240011654, Rev. C [06/08/2017]