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SECTION V: STEAM BOILER PIPING AND TRIM
A. EVALUATE THE EXISTING STEAM SYSTEM.
The single most important factor in determining the
expected life cycle of a steam boiler, is the amount of
fresh water added to the boiler during operation. Fresh
water brings minerals and oxygen into the boiler. These
contaminants greatly accelerate corrosion of the cast
iron boiler sections.
1. Assure that all system radiators, piping and vents are
absolutely leak tight.
a. When a steam boiler is installed in an existing
system, ALL air vents should be replaced at the
same time. This assures that the new boiler will
not be compromised by existing system leaks.
b. If the system contains hidden supply or return
piping (hidden behind walls, buried in concrete,
etc.) pressure test this piping to assure there are
no leaks.
2. Repair any leaks in the system.
3. Install accurate water meter on the fresh water
supply to the boiler.
B. CONNECT SYSTEM SUPPLY AND RETURN
PIPING TO BOILER. See Figure 14 for piping
details. Also consult I=B=R Installation and Piping
Guides.
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