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Part Number 550-101-009/0107
25
GOLD CGa Gas-Fired Water Boiler — Boiler Manual
Water piping — refrigeration systems3e
Install boiler so that chilled medium is piped in parallel
with the heating boiler. Use appropriate valves to prevent
chilled medium from entering boiler. See Figure 18 for
typical installation of balancing valve and check valve.
If boiler is connected to heating coils located in air han-
dling units where they can be exposed to refrigerated
air, use flow control valves or other automatic means to
prevent gravity circulation during cooling cycle.
Piping — low temperature systems (continued)3d