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Dual-Purpose Hot Water Heating (Domestic and Space Heating):
Priority Control Devices
such as a flow switch, an Aquastat or other electronic controller can
be used to prioritize the domestic water system over the heating system.
Warning:
Follow all local codes, or in the absence of local codes, follow the most recent edition
of the National Standard Code, ANSI Z21. 10.3.
Warning:
This illustration is a concept design only. The reference to the 1/8
th
hole in check is
only for the State of Massachusetts. There are a wide variety of variations to the application of
controls and equipment presented. Designers must add all necessary safety and auxiliary
equipment to conform to code requirements and design practice. For more details, contact the
Takagi Technical Department at (888) 882-5244
* Size the pump to provide at least 2 GPM through the system at 15 Ft of Head plus applications and
piping head losses. 2 GPM will allow the system to operate at its optimal performance.
* If the application requires a higher re-circulating flow rate, make sure that the re-circulating flow rate
is no greater than 4 GPM. If the flow rate is too high, the system could be damaged by erosion.
Содержание T-K3-OS
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