Honeywell ST9400C 7 Day 2 Channel Thermostat Programmer White

The Honeywell ST9400C 2-channel programmer provides independent control for heating and stored hot water within complete systems. Designed to maximize energy efficiency, each channel operates with separate schedules, giving users flexibility to tailor heating and hot water usage. It offers seven-day programming with up to three on/off switchings per day, and every day can be programmed differently. Installation options include 5/2 day or 1-day programming, and it can function as a mini programmer for older gravity circulation stored hot water systems without an interlocking control valve. The unit features Line of Text (LoT) technology, delivering clear plain English instructions via its display, and now includes a backlit display for easier use. Automatic Daylight Saving Time adjustment is built in, and the device supports both 7-day and 5/2-day operation. Model variants include ST9400C1000, and the product is available as genuine Honeywell equipment backed by a manufacturer’s guarantee.

Key features

• 2 channel programmer for heating and hot water
• Independent schedules for energy efficiency
• 7-day programming with up to three on/off events daily
• 5/2 or 1-day programming options
• LoT display with backlight and plain English prompts

Technical specifications

• 2 channel operation
• 7 day or 5/2 day scheduling
• Model ST9400C1000
• Automatic DST time change
• Weight 0.639 pounds
• Mini programmer for gravity storage systems