Honeywell Home Prestige IAQ Kit (YTHX9421) is no longer available
This listing is kept for historical reference. Scores and comparisons have been removed.
Honeywell Home Prestige IAQ Kit (YTHX9421)
by Honeywell Home (Resideo)
Highlights
About This Product
Honeywell Home Prestige IAQ Kit (YTHX9421) is a smart thermostat with Wi-Fi connectivity.
Tool Specifications
- Warranty
- 1 year
Thermostat Capabilities
- Communication
- 24V via Equipment Interface Module (EIM, THM5421R1021); device comms over RedLINK proprietary wireless
- Communicating Compatibility
- OEM-agnostic/universal (conventional up to 3H/2C, heat pump up to 4H/2C); not tied to a single OEM communicating bus — uses Honeywell RedLINK accessory ecosystem
- C-Wire
- 2-wire capable ("2-Wire" IAQ kit); EIM handles wiring/power, reducing C-wire need at thermostat
- Zoning
- Not a zoning panel; integrates with Honeywell TrueZONE/RedLINK zoning accessories
- IAQ Sensors
- IAQ control kit: three sets of universal IAQ contacts (humidify/dehumidify/ventilate); includes wireless outdoor sensor (C7089R1013) and two duct sensors
- BMS / BACnet
- None — no BACnet/BMS integration; standalone residential/light-commercial controller
- Dealer Portal
- Resideo Pro / customer.resideo.com (HonECC Catalog)
- Pro Features
- EIM for advanced/2-wire wiring; contractor contact details on screen; Delta T diagnostics; 4H/2C heat pump & 3H/2C conventional staging; universal IAQ contacts; RedLINK accessory ecosystem; color HD touchscreen; +/-1F precision
FSH Score Breakdown
Score Pending
This product has not yet been scored against our methodology. Check back soon.
Customer Reviews
Pricing
- Model
- Custom
- Starting at
- $300
- Notes
- $300 - $450 (kit, est.)
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