ECR International UTICA BOILERS SSV-050 Installation, Operation & Maintenance Manual page 20

5 - HYDRONIC PIPING
FIGURE 5-8B Multiple Boilers Using Primary/Secondary Pumping
12"/305mm
Maximum
Separation
Closely spaced tees
in primary system loop
CH/System Size common piping
Pump per maximum heat
System
capacity of entire
Temperature
system
Sensor
Limit
length to
5' (1.6m)
Up to 16
boilers
20
P/N 240011340, Rev. C [09/07/2016]