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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
Refer to pump manufacturer
literature for proper pump sizing.
17
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 240011656, Rev. E [07/30/2018]
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