Honeywell T4H110A T4 7 Day Programmable Wired Thermostat

The Honeywell T4H110A1021 T4 is a modern, easy-to-use 7-day programmable wired room thermostat designed for automatic time and temperature control of domestic heating systems in homes or light commercial premises. The intuitive screen interface offers simple heating adjustment with a three-step installation: wire, power up, and test & configure.

Key Features

• Extra-large LCD screen with continuous time display
• 7-day programming (7-day, 5/2 or single day schedules) with four or six independent time & temperature settings
• Pre-configured 5/2 heating schedule
• Automatic Summer/Winter time change
• Frost protection and holiday mode
• Manual override facility and temporary schedule override
• Optimum stop, start and delayed start features
• 2 or 3-wire installation, battery powered (2x AA)
• Compatible with 24–230V on/off gas boilers, combi boilers and zone valve applications
• Burner ‘ON’ symbol and heat demand icon

Specifications

• Power: Battery powered (2x AA batteries)
• Scheduling: 7-day, 5/2 or single day with 4 or 6 periods per day
• Installation: Wired, 2 or 3-wire
• Compatibility: 24–230V on/off appliances (not electric heating 240V)
• Guarantee: 1 year

Applications

Well suited to control combi boiler installs or additional zones in S-plan plus systems.

What’s in the box

Thermostat, wall plate, 2x AA batteries, instruction manual.