Laars MagnaTherm HTD Series Installation And Operation Instructions Manual page 30

Page 26
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.
Air vent
Expansion tank
Figure 9. Boiler Piping — Single Boiler with Low Temperature Zones and Indirect DHW Tank Indirect
tank directly off of boiler
Low temp. radiant zone
Water feed controls
4 pipe dia. max.
LAARS Heating Systems
Low temp. radiant zone
Anti-scald
mixing
valve
Domestic
Indirect DHW tank
hot water
out
Cold water