HONEYWELL T4 WIRED OT STAT T4H310A3032

The Honeywell Home T4 Wired OT Stat (model T4H310A3032) is a modern wired programmable room thermostat designed for OpenTherm-enabled boilers. Using OpenTherm communication, it modulates boiler output for precise temperature control and improved efficiency, while the clear backlit screen and simple button interface make daily use easy.

This thermostat offers flexible scheduling to match your routine, manual overrides when plans change, and protective features such as frost protection and adaptive start/stop for comfort when you need it. It is a low-voltage, two-wire OpenTherm device that communicates with the boiler rather than switching mains power, making it ideal for compatible modulating systems.

• Model: T4H310A3032 (T4 Wired OpenTherm)
• Brand: Honeywell Home (Resideo), PITTWAY SARL
• Wired OpenTherm communication for modulating boilers
• Two-wire, low-voltage OpenTherm connection (no 230V switching)
• Programmable daily/weekly scheduling with multiple time/temperature periods
• Large, clear backlit LCD and intuitive button controls
• Manual temperature override and temporary schedule override
• Adaptive start/stop for comfort at scheduled times
• Frost protection and holiday mode
• Accurate room temperature control with setpoint adjustment
• Slim, unobtrusive wall-mounted design
• Suitable for OpenTherm-compatible boilers and heating systems