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The indirect system prevents furring of the boiler, primary flow and return pipes, and hot water storage cylinder. The system is also employed in soft water districts when heating is combined with hot water supply, to prevent rusting of the cast iron radiators, which causes discolouration of the water to be drawn off.
1) Directly into the cylinder coil 2) Indirectly into the cylinder coil via HIU 3) Indirectly into the cylinder via PHE. Note: Other methods of heat heating stored hot water are available, but outside the scope of this design guide.
Supply System The supply system is the recirculated portion of domestic hot water piping that supplies hot water to the ixtures. This does not include the entire domestic hot water supply, as uncirculated ixture branches are not included.
29 paź 2021 · An illustration of a computer application window ... valve ; Pump laws ; Pipe sizing ; Hydraulics and fluid flow -- Part III. Hot water supply systems : Direct system of hot water supply ; Indirect system of hot water supply ; Unvented hot water storage system ; Expansion and temperature relief valves ; Hot water storage cylinders ; Primatic ...
• Indirect Supply • sump and pump supply system • cascade sump and pump supply system • pneumatic booster supply system • variable speed pumping supply system • top floor boosting supply system • gravity supply system • Note that the overall system may include one or more of the above system arrangements 28
BSI Standards Publication Guide to the design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages -Complementary guidance to BS EN 806
This document discusses different methods of hot water supply systems. It describes electric, gas, solar, and central hot water heating systems. It also explains the differences between direct and indirect central hot water systems.
