This is a modern wireless 7-day Programmable Room Thermostat. It is designed to provide automatic time and temperature control of domestic systems in domestic or light commercial premises. Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers and zone valves. The T4 can be used as a temperature sensing device in an S or Y Plan system. Well suited to control combination boiler installations or additional zones in an S Plan Plus system. On screen text display and function buttons to ensure simplified programming and operation for all users. Energy saving TPI control. Optimum stop, start delayed start features that learn how the room is heated. Two wire, volt free connections are ideal for use with combination boilers. Easy to fit with a three step .
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