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Installation
Understanding your heating setup
To know where to install the Boiler Switch, you will need to know the type of
heating setup that you have at home. Please identify your system and then
refer to the corresponding section after this page.
1. Combi boiler (most common) - In the vast majority of cases, your domestic
boiler will be a standard 'combi'. It provides both hot water and water for
central heating directly. It may have an accompanying 'room thermostat'
which is usually located in the hall.
2. Y plan system - this consists of a 'system' boiler which supplies both a hot
water tank and the central heating. There is a single motorised valve which
distributes heated water to either the hot water tank, the heating or both. It
will usually include a room thermostat.
3. S plan system - this also consists of a system boiler supplying both a hot
water tank and the central heating. In this case there are two motorised valves,
one regulating the supply for the hot water and one for the heating. It will
usually include a room thermostat.
4. Multi-zone system (S plan plus) - this is similar to the S plan system, but has
multiple motorised valves controlling supply to di erent heating areas or 'zones'.
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