Dunkirk Helix VX Vertical Laser Tube Wall Hung Stainless Steel Modulating Condensing Boiler - Manual (Page 20)

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