Thermostats and Controllers

1F86U-42WF Series

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1F86U-42WF Series

Programmable Multi or Single Stage Wi-Fi Thermostat 1F86U-42WF Series

Programmable Multi or Single Stage Wi-Fi Thermostat


The White Rodgers 1F86U-42WF Series thermostat is a programmable thermostat with Wi-Fi capability. This versatile thermostat can be used for residential and light commercial applications with both programmable and no-programmable options. The downloadable apps for smartphones or computers make total control easy for the end-users. This thermostat can be used on single or multi-stage system for gas, oil, or electric systems and heat pump applications. Sign up at to access enhanced features.


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QtyModelDescriptionIn StockList PriceInternet Price
1F87U-42WF TSTAT/WIFI/MULTI/HT/CL/PROG In Stock358.00286.40


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  • Universal application with 4 heat/2 cool
  • Battery powered or hardwired with battery backup
  • Multiple thermostats controlled from same app
  • Regional location temperature display
  • Automatic daylight savings time adjustment
  • Auto heat/cool changeover option

Supply Voltage:20-30 VAC, 50/60 Hz

 : 0.05-1.5 Amps (load per terminal)

 : 1.5 Amps maximum load (all terminals combined)

 : Operates on 2 ″AA″ batteries

Setpoint Temperature Range:45° to 99℉ (7° to 37℃)

Rated Differential:Heat 0.6℉; Cool 1.2℉

 : Heat 1.2℉; Cool 1.2℉

Standard Systems:Single Stage gas, oil electric

 : Single Stage heat pump

 : Multi-Stage gas, oil, electric

 : Multi-Stage heat pump

Operating Humidity:90% RH non-condensing maximum

Dimensions:3.75″ H x 5.875″ W x 1.125″ D (9.53 x 14.923 x 2.858 cm)

Weight: 0.75 lb (0.34 kg) approximate average

Warranty: 1 year