HVAC Contracting

HVAC Contracting

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With a reverse return, flow in the return main is in the same direction as the supply main flow. If you trace the flow of the water from the boiler through any loop and back to the boiler, the total length of the piping will be about the same for both the supply ... Instead, our schematic in Figure 7-7 lists the Btu/hr loss for each unit.

Title:HVAC Contracting
Author:Robert Dries, William Dries
Publisher: - 1986-01-01


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