Laars MagnaTherm MGH1600 Installation And Operation Instructions Manual page 28

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Space heating zone circuit
Air vent
Water feed
controls
Expansion tank
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.
Figure 10. Hydronic Piping — Multiple Boilers, Indirect DHW Off of One Boiler
Space heating zone circuits
4 pipe dia. max.
Common piping must be sized for the
combined water ow of all the boilers.
High temp. space heating zone circuit
4 pipe dia. max.
LAARS Heating Systems
Note -
Indirect pump
must be sized
for boiler and
indirect
Indirect
DHW tank
Note -
In this piping arrangement,
the boiler pump must turn o
during DHW operation.
Anti-scald
mixing valve
Domestic
hot water
out
Cold
water