Prestige IAQ Comfort System Kit (Includes Thermostat, EIM, 2 Duct Sensors & Portable comfort control) Zoom

Prestige IAQ Comfort System Kit (Includes Thermostat, EIM, 2 Duct Sensors & Portable comfort control)


Brand: Honeywell

YTHX9421R5077 has been discontinued.
Direct Replacement:
Brand: Honeywell


Application: Heat Pump
Multi Stage (Heat/Cool)
4 Heat/3 Cool Heat Pump
3 Heat/2 Cool
Programmability: Programmable
7 Day
User Interface: Touchscreen
Features: Ventilation Control
Humidification & Dehumidifcation Control
RedLINK Enabled
Power Method: Hardwired
Changeover: Manual
Operating Temp Range: 32°-120°F
Temperature Range (F): 40°-99°F
18/30 VAC
Mount: Horizontal
Color: Arctic White
Options: Auto Changeover
Comes with Sensor
Fan Control
Large Display
Comes with Sensor

Description for Honeywell YTHX9421R5077


  • Kit Includes:
    • Prestige IAQ Thermostat (THX9421R5013 )
    • Equipment Interface Module (THM5421R1013 )
    • 2 C7735A1000 Duct Sensors
    • REM5000R1001 Portable Comfort Control
    • C7089R1013 Wireless Outdoor Temperature Sensor
  • RedLINK Enabled
  • 7 Day Program
  • Up to 4H/3C Heat Pump
  • Up to 3H/2C Conventional
  • Controls Humidification, Dehumidification and Ventilation
  • Wireless outdoor sensor
  • Portable comfort control
  • Large, easy-to-read full color display shows current indoor temperature and humidity, temperature setting, date and time on the home screen. Also displays outdoor temperature and humidity on home screen (if wireless outdoor sensor is installed)
  • Controls multistage equipment, humidification, dehumidification and ventilation all with only 2 wires at the thermostat location
  • Customizable Service Reminders allows the contractor to have automated messages direct homeowners to a screen with the contractor's full-color company logo, phone number and website
  • Change Reminders to inform it is time to replace air filter, humidifier pad or ultraviolet bulb or batteries in RedLINK connected devices
  • Adjustable backlight level allows thermostat to be on full brightness at all times or dim to the brightness level of choice when the thermostat is not being used
  • Interview-Based Programming wizard to easily and confidently schedule thermostat temperature and times
  • USB Port allows downloading of installer settings to quickly and consistently perform setup of thermostats in similar applications
  • USB Port allows easy setup of dealer logo and contact information on thermostat screen
  • Real-Time Clock keeps time during power failure; automatically updates for daylight saving time
  • Precise Temperature Control (± 1°F) for reliable and consistent temperature
  • Multiple HOLD options allows modification of schedule as needed
  • RedLINK Enabled to communicate with compatible wireless devices

Prestige IAQ Comfort System Kit (Includes Thermostat, EIM, 2 Duct Sensors & Portable comfort control)

Q&A: Ask the Questions, share answers Logo

Join Our Mailing List - Sign up and receive special offers and coupons