C.Install Safety Relief Valve. See Figure 4. Safety Relief Valve must be installed with spindle in vertical position.
Installation of the relief valve must be consistent with the ASME Boiler and Pressure Vessel Code, Section IV.
Figure 4: Recommended Water Piping for Zone Valve Zoned Heating Systems
WARNING
Safety relief valve discharge piping must be piped near floor to eliminate potential of severe burns. Do not pipe in any area
where freez ing could occur. Do not install any
D.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 5. Also consult I=B=R Installation and Piping Guides.
Refer to Figure 5a for a diagram of the water piping system inside the Minuteman® II's jacket.
E.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 to prevent gravity circulation of boiler water during operation of cooling system.
F.Use a boiler bypass if the boiler is to be operated in a system which has a large volume or excessive radiation where low boiler water temperatures may be encountered (i.e. converted gravity circulation system, etc.).
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