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FIGURE 5-7 - Multiple Boilers with Common Primary Secondary, Zone Pumps and (Optional) Indirect
CH/System
Pump
5 - HYDRONIC PIPING
System
Temperature
Sensor
UP TO 6 BOILERS
18
1
# Boilers on
Pipe
# BOILERS ON
PIPE
Pipe Branch
Size
PIPE BRANCH
SIZE
1
1-1/4
2
2
2
2
3
2-1/2
4
3
3
2½
5
3
6
4
4
3
7
4
8
4
5
3
6
4
7
4
8
4
P/N 240011662, Rev. D [06/30/2017]
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