Types and Layout Features of Heating Systems

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Identify types and layout features of heating systems.

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Pumped heating gravity hot water, fully pumped systems with two-port and three-port valves.

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Pumped heating gravity hot water

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A type of heating system layout feature.

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Fully pumped, 2 x two-port valves

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Known as S plan in heating systems.

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Fully pumped, 3 x two-port valves

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Referred to as S plan+ in heating systems.

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Fully pumped, three-port valve

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Mid-position/diverting, known as Y/W plans in heating systems.

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C plan two-pipe semi-gravity

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An updated version of a two-pipe semi-gravity system that includes a cylinder thermostat and zone control on the hot water.

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Regulations compliance for C plan two-pipe semi-gravity

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Compliant with building regulations L1B

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Control features of C plan two-pipe semi-gravity

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Full control on heating and hot water

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Two-pipe semi-gravity systems are used with what type of fuels?

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Solid fuels, which are not as controllable as gas or oil boilers.

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Diagram of a two-pipe semi-gravity heating system

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Illustrates the components and flow of a two-pipe semi-gravity heating system, including a feed and expansion cistern, heat leak radiator, gravity primary circulating pipes, and a boiler.