*Note: Venstar Phone Controlled* Thermostat: T1800 (Residential) requires the use of Venstar Comfort Call Phone Controller (ACC0433) (not included).

Note: Common wire required. If common wire not available see here for solution.

Need help determining which model you need? Just email us a picture of the backplate of your existing thermostat (with wires still connected if possible), and our tech team will be happy to help determine what you need. Send pictures to support@diycontrols.com.

• Up to 3-Occupied, 1-Unoccupied periods per day, with copy command for easy programming
• Light Activated occupied period (defeatable)
• Accepts humidification/dehumidification control module (ACC0430)
• Auto changeover, 3-stage heat, 2-stage cool for use with gas/electric, heat pump, electric & hydronic heat
• Configurable for manual changeover, also configurable programmable or non-programmable
• Adjustable deadbands and timers
• Control to, or monitor a second remote sensor
• Can average up to 8 (wired or wireless) remote sensors
• 3 configurable outputs for maximum flexibility (MISC1, MISC2, MISC3)
• Extra 6th and 7th outputs (beyond our standard thermostat)
• Programmable output (control by time, temperature or internet/phone control)
• Energy Watch keeps Track of energy use by tracking heating and cooling hours
• Smart Fan (keeps the fan from running during unoccupied periods)
• Smart recovery
• Pre-occupancy fan purge
• Display shows both heating an cooling setpoints and room temperature simultaneously
• All programming and setpoints stored in non-volatile memory, and are never lost in power failure (date and time are saved for approx 24hrs.)

If you need assistance figuring out how many wires you'll need, email us at support@diycontrols.com, with a description of your HVAC system and a picture of your current thermostat wiring connections if possible. Please note that in rare cases, a manufacturer may use proprietary controls that may not be compatible with this thermostat.

No information available at this time. Feel free to contact us for further information.