Connecting Supply And Return Piping - UTICA BOILERS BC3095 Installation, Operation & Maintenance Manual

Circulators in the following illustrations are mounted on
system supply side, mounting on system return side is also
acceptable practice.
Figure 6 Boiler Used In Connection With Refrigerated System
Figure 7 Bypass Piping Typically Used With Baseboard Heating
1.
Connect supply and return piping as suggested in
Figure 6. When the boiler is used in connection with
refrigerated systems:
A. Chilled medium MUST BE IN PARALLEL with
boiler.

CONNECTING SUPPLY AND RETURN PIPING

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