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
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.
Standard Sundial Y Plan comprises:
V4073A1039 : 22mm 3 port mid-position valve L641A1039 : Strap-on cylinder thermostat T6360B1028 : Room thermostat ST9400A1002 : 1 day full programmer
