Laars MAGNATHERM MGH2000 Installation And Operation Instructions For page 28

Page 24
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.
note: Boiler side of the indirect tank
must be sized to accept the
BTU load of the boiler.
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