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Honeywell T4 Wired Programmable Thermostat

Wall Mounted 24-240v

Part/Code: HLT4H110A1021

• 7 day, & 5/2 day scheduling with a pre-configured schedule included
• Battery powered (with low-power indicator)
• Four or six independent time periods a day (default setting 4)
• Compatible with 24–230v on/off, OpenTherm appliances such as gas boilers Combi boilers and heat pump
• On screen text display and function buttons to ensure simplified programming and operation for all users
• Optimum stop, start & delayed start features that learn how the room is heated
• Easy to fit with a three step installation process: Wire, Power Up and Test, Configure
• Improved wall plate with extra wiring space
• 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
• Continuous time, displayed in extra-large LCD
• Automatic Summer/Winter time change
• Easy change battery compartment
• Optional backlight with extended light on time period


Product Data Sheet