• High-Definition, Full Color Display - Visual clarity of the display is three times better than typical thermostats
• Interview-Based Programming - Asks you questions and then programs itself based on your answers
• Connects to the Internet - Monitor and control your HVAC system over the internet from your PC, smart phone or tablet (with Total Connect Comfort Services)
• Displays Outdoor Temperature & Humidity - Just like a weatherstation, right from the home screen of the thermostat (with Wireless Outdoor Air Sensor)
• Temperature Control Anywhere in the Home - Sense and make temperature adjustments from anywhere (with Portable Comfort Control)
• Diagnoses System Performance - Alerts you of potential system issues or failure before it occurs - so that you can take action
• 7-Day Programming - Allows separate programming for each day of the week
• Saves Energy - When programmed as directed, save up to 33% on annual energy costs - or up to $200 per year
• Time-of-Use Scheduling - Automatically adjusts your home's temperature when utility prices are at their highest to help you save on energy costs
• All-in-One Control - Controls both temperature and air quality products such as a humidifier, dehumidifier, and ventilation system all from a single control in the living space
• Tri-Lingual - Adjust settings to display in English, Spanish or French
• Models Numbers: THX9321R5000, YTHX9321R5030, YTHX9321R5012, YTHX9321R5079, YTHX9321R5003, YTHX9321R5061, THX9421R5005, THX9421R5013, YTHX9321R5002, YTHX9421R5051, YTHX9421R5028, YTHX9421R5069, YTHX9421R5010, YTHX9421R5077
• 5-Year Warranty

Can I connect more than one Portable Comfort Control to the Prestige IAQ Thermostat?
Answer: No. Only one Portable Comfort Control can be connected to one thermostat.

Is it possible to see outside temperature and humidity on my thermostat?
Answer: Yes. When connected with an Outdoor Sensor, select thermostats and devices will display the outdoor temperature and humidity on the screen.

Why is my cooling not working?
Answer: There are several items you can check. First check that the thermostat is set to the Cool position. Make sure the temperature is set lower than the Inside temperature reading. Also check the circuit breaker and reset if necessary. Make sure that the furnace door is closed securely. If "wait" is in the screen or "cool on" is flashing - wait 5 minutes for the system to safely respond. The thermostat will indicate it is asking for the cooling to turn on when "cool on" or a "snowflake" in the display. If this message is in the display, the thermostat is asking for the heat to be on and there is a likely a problem outside of the thermostat preventing the cooling from running.

Why is my heat not working?
Answer: There are several items you can check. First check that the thermostat is set to the Heat position. Make sure the temperature is set higher than the Inside temperature reading. Also check the circuit breaker and reset if necessary. Make sure that the furnace door is closed securely. If "wait" is in the screen or "heat on" is flashing - wait 5 minutes for the system to safely respond. The thermostat will indicate it is asking for the heat to turn on when "heat on" or a "flame" in the display. If this message is in the display, the thermostat is asking for the heat to be on and there is a likely a problem outside of the thermostat preventing the heat from running.

Why is my Prestige IAQ thermostat starting the heat or cool before the program time?
Answer: The thermostat has a feature called Adaptive Intelligent Recovery(AIR) or Smart Response or Early Start. This allows the thermostat to "learn" how long the heating and cooling system will take to reach the programmed temperature settings. So the temperature is reached at the time you set.