Honeywell Home controlling heating and stored hot water in complete systems, the Honeywell ST9400C two channel, seven day programmer has up to three on/off periods per day, optional 5/2 or one day programming and independent heating and hot water control for maximum efficiency. Offering the option to set as a mini programmer for older gravity circulation stored hot water systems, where there is no interlocking control valve, ST9400C is suitable for combi boilers, heating zones or any application where small electric loads are switched. The programmer's Line of Text (LoT) display gives clear instructions whenever any button or slider is used for simple, hassle-free use.

• LoT display providing text feedback that gives help and programming hints
• Large backlit display
• Factory set clock and date
• Automatic summer/winter 1 hour time change
• Temporary or permanent override facilities
• Extra hour facility for up to 3 hours boost or programme extension
• Operating temperature range 0C to 40C
• Fits on industry standard back plate
• Direct replacement for ST6100 models
• Any programmed settings retained indefinitely in non volatile memory