Key Features
- Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers and zone valve
- 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
- Battery powered (with low-power indicator)
- Easy change battery compartment
- Optional backlight with extended light on time period
- Burner 'ON' symbol
- Warranty: 1 year
Honeywell T4R Wireless Programmable Thermostat - Y4H910RF4003 Overview
This is a modern wireless 7-day Programmable Room Thermostat. It's designed to provide automatic time and temperature control of domestic systems in domestic or light commercial premises
Additional Features
- On screen text display and function buttons to ensure simplified programming and operation for all users
- Energy saving TPI control
- Optimum stop & 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
Choosing the right sort of Heating Control is a key decision. After you determine that Programmable Thermostats provide the appropriate solution then the Honeywell T4R 7-Day Wireless Programmable Thermostat - Y4H910RF4003 is clearly worth putting on your shortlist.
