Appendix - New Yorker CG20F Installation, Operating And Service Instructions

Appendix:

Combination Refrigeration/ Heating System
A. If boiler is used in connection with refrigeration
systems, boiler must be installed with chilled
medium piped in parallel with the heating boiler
using appropriate valves to prevent chilled
medium from entering boiler. See Figure A-1.
Also consult Residential Hydronic Heating
Installation and Design I=B=R Guide.
Supply main to
combined heating
& cooling system
Expansion
Tank
Water
Chiller
46
CG-F
Circulator
Shut-off
valves
Figure A-1: Isolated Boiler from Refrigeration System
Installation, Operating & Service Manual
B. If boiler is connected to heating coils located in
air handling units where they may be exposed to
refrigerated air, boiler piping must be equipped
with flow control valves or other automatic means
to prevent gravity circulation of boiler water
during operation of cooling system.
Shut-off
valves
Return main from
combined heating
& cooling system
Heating
Boiler
110118-02 2/21