Honeywell – THX9421R5021WW Prestige IAQ Touchscreen Thermostat Honeywell

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Application	Multi Stage (Heat/Cool), Heat Pump
Stages	3 Heat/2 Cool 4 Heat/2 Cool (Heat Pump)
User Interface	Push Button
Programmability	Programmable
Power Method	Hardwired
Voltage	24v

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The Prestige IAQ thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable and selectable for residential or light commercial use. 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. 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 Sensor and Wireless Indoor Sensor.

• USB port for transferring Installer Setup, Customizable Reminders, Custom Events and Holidays to multiple thermostats.
• Tri-lingual – English, French and Spanish display options.
• Smart Schedule – programs in seconds for any lifestyle
• Selectable for residential and light commercial applications. Meets commercial code and is title 24 compliant.
• RedLINK wireless communication.
• Precise temperature control ( + / – 1 F ) for reliable and consistent temperature.
• Performance Logs – Keeps a history of heating and cooling performance.
• Patented interview based programming and installer setup.
• Multiple staging options to provide comfort or energy savings.
• Light commercial – commercial language ( occupied and unoccupied ), schedule holidays and custom events, remote setback, economizer and time of day.
• Delta T Alerts and Diagnostics informs customers when their system is not performing as expected with instructions to contact the dealer. Provides a sense of security and greater comfort while generating repeat business.
• Customizable Service Reminders allow dealers to remind their customers when its time to call for service, when their warranty is expiring and to provide customized alerts.
• Control heating, cooling and IAQ equipment with only 2 wires at the thermostat. Heating, cooling and IAQ equipment wires to the Equipment Interface Module.
• All Prestige IAQ kits come standard with a return and discharge air temperature sensor to measure Delta T.
• Alerts and User Interactions Log – Keeps a searchable history of alerts and setting changes to the thermostat to determine if there is a system malfunction or if the issue was caused by user error.
• 4 assignable inputs on the Equipment Interface Module can be used with wired outdoor, indoor or discharge sensors, occupancy sensor for remote setback and dry contact devices to trip pre-packaged or custom alerts such as a full drain pan or water leak.
• 3 assignable outputs to control humidification, de-humidification, ventilation and a stage of heating or cooling.

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