Dunkirk DKVLT-050 Installation, Operation & Maintenance Manual page 18

FIGURE 5-8A Multiple Boiler Two Pipe Zoned System With Zone Valves - (See Multiple Boiler Guide)
CH/System
Pump
5 - HYDRONIC PIPING
DHW
Pump
12"/305mm Maximum Separation
Temperature
Up to 16
boilers
(See Multiple Boiler Guide)
18
System
Sensor
Size common piping
per maximum heat
capacity of entire
system
Limit
length to
5' (1.6m)
All internal
primary loop
ball valves
closed
3/8"/10mm Open
End Wrench may
be required to
turn valve