Water Piping - Weil-McLain GOLD CGt Manual

GOLD CGt Gas-Fired Water Boiler — Boiler Manual
4f
Water piping — refrigeration system
Prevent chilled water from entering boiler
Install boiler so that chilled medium is piped in parallel with the heating boiler. Use appropriate
valves to prevent chilled medium from entering boiler. See
of balancing valve and check valve.
If boiler is connected to heating coils located in air handling units where they can be exposed
to refrigerated air, use flow control valves or other automatic means to prevent gravity
circulation during cooling cycle.
Figure 23 Piping refrigeration systems
System
supply
Circulator
System
return
Part Number 550-110-290/0501
Expansion tank
Water
chiller
Strainer
12" max
Check
valve
Balancing
valve
071027
for typical installation
Figure 23
Shut-off
valve
3-way
Shut-off
valve
valve
Boiler
circulator
27