23
Installing the System Piping
Expansion Tank
The size of expansion tank should be decided according to
the boiler capacity and the amount of water in the system. It is
important to locate the expansion tank, and make-up water fill,
on the inlet side of any circulator in the system, as doing so will
guarantee the lowest pressure in the system will be at least equal to
the tank and make-up water pressure.
Ensure the expansion tank cannot become isolated from the boiler
anytime the system is operating. Failure to follow these instructions
may lead to discharge form the pressure relief valve, which may
result in property damage or injury.
System Application – Zone System with Zone Valves
Zone Valve
Zone 1
Zone 2
Zone 3
System pump
Air Separator
Expansion tank
Not exceed Max.12 in
Summary of Contents for VRC-100
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