Honeywell Home YTHX9421R5127WW/U Prestige 2-Wire IAQ Kit with RedLINK Internet Gateway, White

Honeywell Home YTHX9421R5127WW/U Prestige 2-Wire IAQ Kit with RedLINK Internet Gateway, White

Item #
HONE-YTHX9421R5127WW/U
Mfr. part #
YTHX9421R5127WW/U
UPC
085267136945
$528.99
Each
Backorder – ships from manufacturer
Estimated delivery: –

Special order: typically ships in 3–4 weeks. Contact us for an exact lead time.

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Shipping details

  • Shipping weight: 2.4 lb
  • Box size: 10.4 × 6.6 × 4.85 in
BrandHoneywell Home
Manufacturer part #YTHX9421R5127WW/U
UPC085267136945

YTHX9421R5127WW has been discontinued by the manufacturer (2026-07). Suggested replacement: YTHX1200W7 - ElitePRO S1200 Smart Thermostat EIM Kit, White.

The Prestige® IAQ Thermostat kit offers temperature and humidity control for residential or light commercial use, and comes with an Equipment Interface Module, 2 duct sensors and one outdoor sensor. This WiFi thermostat features an HD color touchscreen and is ENERGY STAR® Certified. Customers can program a 7-day schedule, with vacation mode for energy savings when they're away. 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 Equipment Interface Module has 4 assignable inputs to be used with wired outdoor, indoor, discharge or occupancy sensors Meets commercial code; is title 24 compliant Adaptive Intelligent Recovery — Over time, the Prestige® thermostat learns how long it takes to reach the desired temperature and activates the system earlier Dealer information on-screen Keypad lockout to prevent unauthorized changes Displays on/off status of all equipment controlled by the thermostat RedLINK® wireless communication English, French or Spanish display options Performance logs maintain heating and cooling history.

Specifications

  • Brand: Honeywell Home
  • Manufacturer Part #: YTHX9421R5127WW/U
  • Application: 24 Vac systems; Gas, Oil, Electric Warm Air; Hot water Coil; Gas, Oil, Electric Hydronic; or Steam / Gravity Systems
  • Backlight Options: Adjustable
  • Battery Size: CR2032
  • Clock Type: Year Clock
  • Color: Front: White, Side: White
  • Communication Type: RedLINK; WiFi
  • Compatible Third Party Applications: Amazon Alexa; Microsoft Cortana; IFTTT; Google Assistant
  • Demand Response: No
  • Display Type: Touch Screen
  • Earthing: Not Applicable
  • Fan Function: On; Auto; Circulating
  • For Use With: RedLINK® accessories
  • Heat-Cool Changeover: Auto; Manual
  • Includes: THX9421R5021WW Prestige® 2-Wire IAQ Thermostat; THM5421R1021 Equipment Interface Module; THM6000R7001 RedLINK® Internet Gateway; 2 Duct Sensors
  • Number of Batteries: 1
  • Occupancy Sensor: Not Applicable
  • Program Modes: 7-Day Programmable; Manual / Not Programmed
  • Programmable: Yes
  • RedLINK: Yes
  • Smart Home Integration: No
  • Thermostat Type: Programmable; Digital; Low Voltage; RedLINK
  • Touchscreen: Yes
  • Utility Rewards: No
  • Warranty: 5 Years
  • Wifi: No
  • Wi-Fi Specifications: Internet Gateway THM6000R7001/U Provides WiFi Capabilities
  • Works With Resideo Applications: Total Connect Comfort
  • Z-Wave: No
  • Z-Wave Specifications: Not Applicable
  • UPC: 085267136945
  • Category: Programmable Thermostats

Questions about fit or compatibility? Ask our team. We usually reply within one business day.

$528.99
Backorder

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