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WATER PIPING AND CONTROLS
3. WATER PIPING AND CONTROLS
A.BOILER SUPPLY AND RETURN
1.Size the supply and return to suit the system. A typical piping arrangement is shown in Figure 3.1. Refer also to the I=B=R Guide - Residential Hydronic Heating Installation/Design and the PB Heat Water Survey for additional guidance during water piping installation.
2.Return Piping:
Pipe the drain valve to a tee, provided, and the
3.Supply Piping:
Pipe the supply to the
4.When system return water temperature will be below 130°F (54°C), pipe the boiler with a bypass arrangement to blend the system return and hot supply to obtain at least 130°F (54°C) entering the boiler. For more information on bypass piping, consult the PB Heat Water Survey.
Figure 3.1: Supply and Return Piping
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