The Honeywell ST9400C 7 Day 2 Channel Programmer designed to allow the user to control both the central heating and stored hot water independently. By controlling the central heating and hot water separately the system runs more efficiently helping users to reduce their energy bills and carbon footprint. The ST9400C has three on/off switching times per day allowing the user to set the heating and hot water to come on at three different times per day, plus each day of the week can be programmed differently. Also the ST9400C can be set up 5/2 days enabling the user to set the week days separately to the weekends.
The Honeywell ST9400C 7 Day 2 Channel Programmer has a clear Line of Text display that provides plain English instruction whenever a slider or button is used making this a highly user friendly programmer. Plus the ST9400C features a 'holiday' button which allows the user to turn off the heating and hot water for a pre set number of days while they are away. Also the ST9400C 24 Hour 2 Channel Programmer has superseded the ST6400C which is no longer available.