Installation / Operation Instruction Manual

Table Of Contents
Page 30
Figure 11. BoilerPiping—MultipleBoilers,IndirectDHWO󰀨ofOneBoiler
Space heating
zone circuits
Space heating zone circuit
Air vent
Water feed
controls
Expansion tank
Common piping must be sized for the
combined water flow of all the boilers.
High temp.
space heating zone circuit
4 pipe dia. max.
4 pipe dia. max. 4 pipe dia. max.
4 pipe Dia. Max
Note -
This drawing is a schematic representation of
a piping style, and is not intended to be used
as a working installation drawing.
Local code requirements must be met.
Indirect DHW tank
Anti-scald
mixing valve
Domestic
hot water
out
Cold
water
Note - Indirect pump must be sized for boiler and indirect