Connecting Supply And Return Piping - UTICA BOILERS BC3D Installation, Operation & Maintenance Manual

Important: circulators in the following illustrations are
mounted on the system supply side, but mounting on the
system return side is also acceptable practice.
Figure #5
Figure #6
Connect supply and return piping as suggested
1.
in Figure # 5, below. When the boiler is used in
connection with refrigerated systems:
A. Chilled medium
boiler.

CONNECTING SUPPLy AND RETURN PIPING

MUST BE IN PARALLEL with
B. Use appropriate valves to prevent chilled medium
from entering heating boiler.
During the heating cycle open valves
2.
valves C and D.
7
A and B, close