Connections
24
Special Applications
Boiler in a heating/cooling application
Cooling seas on starts:
close valve v1 and open valve v2
Heating season starts :
close valve v2 and open valve v1
Heating/Cooling unit
Spring-loaded flow check valve
Circulation pump
Safety header
with automatic air vent,
pressure relief valve , and
pressure gage
Expansion tank
Water chiller
We strongly suggest that the valves
pictured above be labelled “ v1” and
v2.”
Low water cut-off
A low water cut-off may be required by
local codes. If boiler is installed above
radiation level, a low water cut-off
device
of approved type (field
supplied) must be installed in all
instances. Do not install an isolation
valve between boiler and low water
cut-off.
5285 838 v2.1
v1
v2
IMPORTANT
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