Laars MagnaTherm MGH1600 Installation And Operation Instructions Manual page 27

MagnaTherm Boilers and Water Heaters
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.
Space heating zone circuit
Air vent
Water feed controls
Expansion tank
4 pipe dia. max.
Figure 9. Hydronic Piping — Multiple Boilers, Multiple Temperature Zones, Reverse Return.
Zoning with circulators
Space heating
zone circuits
4 pipe dia. max.
Common piping must be sized for the
combined water ow of all of the boilers.
Low temp. radiant zone
4 pipe dia. max.
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