Page 16 | SERIES 28A BOILER INSTALLATION AND OPERATION INSTRUCTIONS |
Piping For Use With Cooling Units
The boiler, when used in connection with a refrigeration system, must be installed so the chilled medium is piped in parallel with the boiler. Appropriate valves must be used to prevent the chilled water from entering the boiler, see Figure 20.
When a boiler is connected to a heating coil that may be exposed to refrigerated air from an air handling device, the piping system must be equipped with flow- control valves or some other automatic means of preventing gravity circulation of the boiler water during the cooling cycle.
Figure 16 - Optional Return Yoke
Figure 17 - Boiler Control Locations
STEAM | WATER |