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Express delivery for Thursday Available Until 4pm Today
UK Mainland Only,
3pm cut-off for Highlands and Islands


 

Express delivery for Thursday Available Until 4pm Today
UK Mainland Only,
3pm cut-off for Highlands and Islands


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Honeywell T4R Wireless Programmable Thermostat

Brand: Honeywell
HCO Code: 07A21
Price: £109.78
Ex VAT: £91.48
Stock: In Stock
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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
  • Wireless communication between thermostat and receiver box with 30m range
  • Pre-bound to the wireless relay box, no need to establish a binding
  • 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
  • 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
  • Displayed on an extra-large LCD screen
  • 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

 

Wireless Relay box

Designed for the installer in mind, this relay box comes pre-bound to the Honeywell T4R and provides the link between the boiler and the wireless thermostat.

 

  • Lift up wiring bar for easy wiring
  • OpenTherm terminals as standard
  • Clear wiring labels

 

Model: T4H910RF4003

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Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 2430 merchant reviews

4.90 / 5 Rating
2430 Reviews
Special price noted before our holiday was still available. Delivery was quicker than predicted.
My order arrived quickly, as I've come to expect from HCO
Easy and accurate purchase.