Horstmann ChannelPlus H3747 4 Channel Programmer

Horstmann ChannelPlus H3747 4 Channel Programmer is designed for larger dwellings, featuring zone control of Hot Water and Heating as well as many other zoning applications including Underfloor Heating.

• Suitable as an alternative to the H47XL with minimal wiring changes
• Easy replacement of timers/programmers
• Combi boiler – central heating, 4-zone system
• Central heating and hot water control
• Domestic gas or oil-fired boiler-based heating systems
• 4-channel control with local override via button
• No Wi-Fi necessary for local remote control of heating via app
• Retrofit on many existing controls with convenient installation using 9-pin configurations on backplate
• Click-off / Click-on with simple wiring changes for easy and quicker installation
• 12 year battery life warranty on programmable thermostat display (PTD)
• Boiler Plus compliant (load compensation and optimum start / stop)
• 7 years product warranty