Honeywell YTHX9421R5085WW/U Wifi Thermostat

$878.00 CAD

  • Description: Honeywell Thermostat YTHX9421R5085WW/U
  • Nominal Size: 7″ x 4″ x 3″
  • Application: Heat Pumps


Type      : Low Voltage
Series      : Prestige®
Control Range      : 32 – 120 deg F
Differential      : +/- 1 deg F
Stages Heat      : 3 Conventional, 4 Heat Pump
Stages Cool      : 2
Temperature Settings Per Day      : 4
Programs Per Week      : 7
Terminal Designations      : R, RC, RH, C, W-O/B, W2-AUX1, W3-AUX2, Y, Y2, G, A-L/A, U1, U1, U2, U2
System Switching      : Heat-Off-Cool-Auto-Emergency Heat
Fan Switching      : Auto-On-Circulate-Follow Schedule
Display Type      : Tri-Lingual
Voltage Rating      : 18 – 30 VAC
Power Source      : Battery
Mounting Type      : Horizontal
Color      : White
Dimensions      : 3-1/2 Inch Height x 4-1/2 Inch Width x 7/8 Inch Depth

Any Questions? Call 613-727-4328 or Send a Message Online

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Local Pickup (Ottawa Store - K2E 7M3)

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Honeywell YTHX9421R5085WW/U Wifi Thermostat

Bilsom® Prestige® Programmable Thermostat

Low Voltage, 32 – 120 deg F Contact, +/- 1 deg F Differential, 3 Conventional, 4 Heat Pump, 2, 4, 7, R, RC, RH, C, W-O/B, W2-AUX1, W3-AUX2, Y, Y2, G, A-L/A, U1, U1, U2, U2, Heat-Off-Cool-Auto-Emergency Heat, Auto-On-Circulate-Follow Schedule, Tri-Lingual Display, 18 – 30 VAC, Battery, Horizontal Mounting, White, 3-1/2 Inch Height x 4-1/2 Inch Width x 7/8 Inch Depth

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.

  • Control heating, cooling and IAQ equipment with only 2 wires at the thermostat heating, cooling and IAQ equipment wires to the equipment interface module
  • Smart schedule – programs in seconds for any lifestyle
  • Patented interview based programming and installer setup
  • Redlink™ wireless communication
  • Increase profit per job by including Redlink™ accessories that provide comfort and convenience
  • 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
  • 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. Saves time in troubleshooting and points the technician in the right direction

Application: Heat Pumps


Weight 5 lbs
Dimensions 7 × 4 × 3 in


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