The Sundial Y Plan is designed to provide independent temperature control of both heating and domestic hot water circuits in fully pumped central heating installations. Sundial Y Plan satisfies the minimum standard requirements of the Building Regulations Part L1 when used in conjunction with radiator thermostats and an automatic bypass valve. For systems in dwellings with a floor area greater than 150m2, The Sundial S Plan Plus must be used - A one day time function is provided on the programmer.
- Independent control of heating zone.
- Independent control of domestic hot water temperature.
- Pump & boiler switched off when space and hot water temperature requirements are satisfied.
- Both systems can operate at the same time.
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