Product HighlightsThe Prestige® IAQ 7 day programmable thermostat is suitable for residential or light commercial use. It controls up to 4 stages of heat and 2 stages of cool in a heat pump system and up to 3 stages of heat and 2 stages of cool in a conventional system.
- High definition color touch screen
- Three sets of universal IAQ contacts to control humidification, dehumidification, and ventilation
- Four sensor inputs for wired sensors or dry contact devices
- Works with the Equipment Interface Module and RedLINK® accessories including the RedLINK® Internet Gateway
- Portable comfort control
- Wireless outdoor and indoor sensors
California residents: see Proposition 65 Warning
Weight 8.50 Pounds Length 0.88 Inches Width 4.50 Inches Height 3.50 Inches Country of Origin MEX Brand Honeywell Voltage 18-30 VAC Electrical Connection Screw terminals Electrical Rating 18 to 30 VAC Power Method Hardwired Cycle/Hertz 50 Cycle/Hertz 60 750mV Compatible No Auto Changeover Yes Built In Wi-Fi No Change/Check Reminders Yes Daylight Savings Time Ready Yes Digital Yes Digital-Non Programmable Yes Digital-Programmable Yes Display Yes Displays Outdoor Temperature Yes Heat Pump Compatible Yes Humidification Yes Indoor Remote Sensor Yes Language English, French, Spanish Low Battery Indicator Yes Programmable Fan Yes Stages Cool 2 Stages Heat 4 Touchscreen Yes Vacation Mode Yes Accuracy +/- 1° F Includes THX9421R5021WW Prestige® 2-Wire IAQ Thermostat, THM5421R1021 Equipment Interface Module, C7089R1013 Wireless Outdoor Sensor and 2 Duct Sensors Application Up to 4 Heat/2 Cool Heat Pumps or Up to 3 Heat/2 Cool Conventional Systems Color White Comments/Notes Tri-Lingual Display (selectable for English, French or Spanish) Dual Transformer Compatible No Fan Switching Yes For Use With RedLINK accessories Manual Yes Mounting Horizontal Operating Humidity 5 to 90% RH, non-condensing Operating Temperature Range 32°F to 120°F (0°C to 48.8°C) System Switching Yes Temperature Range Heat: 40°F to 90°F (4.4°C to 32.2°C); Cool: 60°F to 99°F (15°C to 37.2°C) Terminal Designations R, RC, RH, C, W-O/B, W2-AUX1, W3-AUX2, Y, Y2, G, A-L/A, U1, U1, U2, U2, U3, U3, S1, S1, S2, S2, S3, S3, S4, S4, A, B, C, D Warranty Offered Yes
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