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Honeywell - TH4210U2002 T4 Pro Programmable Thermostat 2H/1C

Item: TH4210U2002
MFR: TH4210U2002/U

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About This Product

Product Info


The T Series programmable thermostat streamlines everything from product selection and installation to customer service and support. With a standard footprint and simple interface, the T Series will enhance the entire thermostat experience for you and your customers alike.

  • TH4210U2002 2H/1C heat pump and 1H/1C conventional
  • 7-day, 5-2, 5-1-1 or non-programmable
  • Uses the UWP mounting system that’s standard across all T Series thermostats
  • Easy upsell to a connected Lyric T6 Pro Wi-Fi when your customer is ready for Wi-Fi (C-wire required)
  • Simple push-button functionality
  • Filter change reminders
  • 5-year warranty


Weight1.116 Pounds (lbs)
Width1.09 Inches (In)
Height4.06 Inches (In)
Country of OriginMEX
Length4.06 Inches (In)
750mV CompatibleYes
Accuracy0.5 C
Ambient Temperature Range32°F to 120°F (0°C to 48.8°C)
ApplicationStandard Efficient Gas Forced Air, High Efficacy Gas Forced Air, Oil Forced Air, Electric Forced Air, Hot water Fan Coil, Geothermal Heat Pump, Air to Air Heat
Auto ChangeoverYes
Batteries IncludedYes
Battery BackupYes
BrandHoneywell Home
Built In Wi-FiNo
Change/Check RemindersYes
Daylight Savings Time ReadyYes
Differential Temperature1°F (0.5°C)
Digital-Non ProgrammableYes
Display OptionsSystem status, actual time, schedule information, actual indoor temperature, indoor temperature setpoint
Displays Outdoor TemperatureNo
Dual Transformer CompatibleYes
Electrical ConnectionUWP Mounting System
Electrical Rating20 to 30 Vac
Energy Star RatedNo
Fan SwitchingYes
Heat Pump CompatibleYes
IncludesInstallation Instructions and User Guide
Indoor Remote SensorNo
Low Battery IndicatorYes
MountingWall mount (UWP Mounting System)
Operating Temperature Range37°F to 102°F (2.7°C to 38.8°C)
Power MethodBattery or Hardwired
Power SupplyHardwired
Programmable FanNo
Prop 65No
Removable InterfaceNo
Sensing ElementNo
Stages Cool1
Stages Heat2
System SwitchingYes
Temperature Range32°F to 120°F (0°C to 48.8°C)
Temperature Settings per Day4
Terminal DesignationsRC, R, C, W, O/B, Y, G, E, AUX, K
Vacation ModeNo
Voltage20-30 VAC
Warranty OfferedYes


Replacement For

  • Item: TH4210D1005

Equipment Part List

Motor Season