Honeywell T4 T4H110A1021 Thermostat 7 Day Programmable Optimum Start Heating

Features

• Shape: Plan

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 installation process: Wire, Power Up and Test, Configure.

New improved wall plate with extra wiring space.

Clip on cover to the fixed wall plate.

Optional Wired external sensor available (wired versions only).

On screen heat demand icon makes start up testing easy.

Simple push button access to configuration menus.

Adjustable Frost protection.

Away mode with specific temperature set (number of days changeable).

Temporary schedule override until next set point or for 1 or 2 hours.

Schedule can be turned off – will operate as a variable setting thermostat only.

Continuous time, displayed in extra-large LCD.

Automatic Summer/Winter time change.