The Drayton SM2 Twin Channel 24 Hour Programmer is an electro-mechanical time control unit designed for managing heating and hot water systems independently in domestic setups. Key features include:

• Dual-channel programming, allowing separate control of heating and hot water

• 24-hour time wheel with tappets, enabling up to two ON/OFF periods per day for each channel

• Advance function, letting users manually override the program to bring heating or hot water on early

• Four-position slide switch, simplifying mode selection (e.g. ON, OFF, timed, advance)

• Compatible with gravity and pumped systems, offering installation flexibility

• Standard wallplate fitting, ensuring easy replacement or upgrade in existing systems

A reliable and user-friendly solution for homeowners seeking straightforward control over their heating and hot water schedules.