Honeywell T4 7 Day Programmable Thermostat

The T4 programmable thermostat is a modern a wired 7-day Programmable Room Thermostat. It is designed to provide automatic time and temperature control of domestic systems in domestic or light commercial premises.

 

Installing the Lyric T6 wired model

 

 

Features

  • 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
  • 7-day programming with 7 day; 5/2 or single day schedules
  • Four or six independent time & temperature settings (default is 4)
  • Pre-configured 5/2 heating schedule
  • Battery powered (with low-power indicator)
  • Easy change battery compartment
  • Optional backlight with extended light on time period
  • Burner 'ON' symbol

 

Product Code Model
T4H110A1021 T4 wired