DT4 White Wired Room Thermostat with On/Off DT40WT20

Main features

• Designed to be backward and forward compatible, including OpenTherm®.
• Can be installed standalone or part of an existing system, including conventional and combi boilers, and new heating systems.
• Easy-to-read, energy-efficient LED-based display that turns off when the screen is not in use.
• Wired or wireless versions to suit almost every installation.
• Integration with smart devices such as Honeywell Home evohome and the HCC100 underfloor multi-zone controller.
• Backlit, captive touch buttons.
• Built in eco-mode to reduce room temperature for a set time period and help save money and the environment.
• Built in boost mode to increase room temperature for a set time period.

Installer Benefits

• 5-year warranty
• Works with heating and cooling systems including heat pumps, zoning and underfloor heating and cooling. Also compatible with hybrid and green heating systems
• Wiring plate for easy installation
• Backwards compatible with existing Honeywell Home products such as
  BDR91A and others
• Available in wired, wireless and OpenTherm® versions#
• Thermostat design and function improved following installers’ feedback*

Customer Benefits

• Coloured icons give a clear indication of thermostat’s status
• Slim, unobtrusive design
• Easy-to-read LED-based on/off eco display
• Frost protection built in
• Self-learning TPI fuzzy-logic control
• Reduced maintenance with no batteries required on Opentherm version only