Lennox 42J04 135-175F AUTO Limit Switch 135-175F AUTO Limit Switch

135-175F AUTO Limit Switch

No matter where you are or what time of year it is, this Lennox 135-175F AUTO Limit Switch makes changing the climate as easy as flipping a switch. The limit switch is used to stop the gas when the water temperature reaches 135°(57.2°C) or 175°(79.4°C). Whenever temperature gets too low, it will automatically turn the gas off and when the temperature gets higher than your pre-set setting, It will be turned on again.

The Lennox 135-175F AUTO Limit Switch is a solid state control that is designed to control hydronic, gas or electric heating systems where a constant limit control is needed. This self resetting device will not turn on the heating system upon loss of power until the room temperature has dropped below the pre-set temperature.

Easily replace worn limit switches with Lennox 42J04 135-175F AUTO Limit Switch. Lennox 42J04 is an electric thermostatic limit that is installed in the blower compartment of a furnace to turn down the blower when the temperature falls below or goes above the set points. This limit has many standard features including A connector terminal No, B: 5A-250V/14-30V Amp, C: 28VDC.

Lennox 42J04 135-175F AUTO Limit Switch

Lennox 42J04 [[100031]] 135-175F AUTO Limit Switch Replaces:    Lennox: 100P20214,3823ON00A1

The Lennox 42J04 135-175F AUTO Limit Switch is a 1/2 HP, 120.00 CFM, 913.3 BTU, +/-1% air flow setpoint control switch for air-cooled forced air furnaces. It has 3 wire terminals (R, W, N). The 42J04 is a back mounted limit switch that is designed for horizontal vent application and (2) 1/4" ANSI female pipe thread mounting holes top of unit

The Lennox 42J04 135-175F AUTO Limit Switch is an electronic limit switch that is designed for use with the Lennox TrueSplit ECO air conditioner. The air conditioner can be set up to autoselect the proper fan speed. The Lenox TrueSplit eco air conditioning systems are considered variable refrigerant flow (VRF) systems by Lennox, meaning they have multiple compressors to handle different zones of heating or cooling in the home.