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Honeywell TH8321U 1006 PREMIER WHITE 24V/750 MILLIVOLT VISION PRO 7-DAY PROGRAMMABLE DUAL POWERED UNIVERSAL APPLICATION TOUCHSCREEN T-STAT 2 OR 3 WIRE 3H-2C, INCLUDES DEHUMIDIFICATION CONTROL Features   • Large, Clear Display with Backlighting current temperature, set temperature and time are easy-to-read and all are displayed on the home screen. • Menu Driven Programming Guides you through the scheduling process, showing only necessary information and choices on each screen. • Ability to Select Multiple Days allows you to easily customize the thermostat for your unique schedule. • Real-Time Clock keeps time during power failure; automatically updates for daylight savings. • Armchair Programming allows you to remove thermostat from wall to set the schedule. • Precise Temperature Control (+/- 1 F) reliable, consistent comfort. • Multiple HOLD options allow you to modify schedule indefinitely or for a specific time. • Change Reminders reminds you to service or replace the air filter, humidifier pad, ultraviolet lamp or thermostat batteries. • Programmable Fan increases air quality when combined with a whole-house air cleaner. • Outdoor Temperature Indication (Select Models) shows current outdoor temperature on the display to help you plan outdoor activities. Product Specifications     Description VisionPRO® Touchscreen 7-Day Programmable 3 Heat/2 Cool Conventional and Heat Pump Thermostat with Dehumidification Control Application Conventional and Heat Pump systems Programmability Universal Programming from 7 Day to Non-Programmable Changeover Auto or Manual Color Premier White® Switch Positions (System) HEAT-OFF-COOL-AUTO Switch Positions (Fan) AUTO-ON Power Method Battery or Hardwired Terminal Designations R, RC, W (O/B), W2 (AUX), Y, Y2, L, E, G, C, S1, S2 Dimensions (in.) 4 9/16 in. high x 6 in. wide x 1 1/4 in. deep Mounting Horizontal Electrical Ratings 20 to 30 Vac Frequency 60 Hz;50 Hz Setting Temperature Range (F) Heat: 40 F to 90 F; Cool: 50 F to 99 F Setting Temperature Range (C) Heat: 4.5 C to 32 C; Cool: 10 C to 37 C Differential Temperature (F) ± 1 F Differential Temperature (C) ±0.5 C Stages Up to 3 Heat/2 Cool Outdoor Sensor Yes, optional outdoor or indoor remote Remote Sensor Yes, optional outdoor or indoor remote Sensor Element Thermistor Currents (Heating) 1.0 A running Currents (Cooling) 1.0 A running Currents (Fan) 0.6A running Operating Humidity Range (% RH) 5 to 90% RH, non-condensing Comments Includes Dehumidification Control. Conventional and heat pump systems. The L terminal is an input or output