Lennox 11U66 .55 w.c. Pressure Switch .55 w.c. Pressure Switch

.55 w.c. Pressure Switch

The .55 w.c. Pressure Switch is part of Lennox's LennoxHP Gas Valve System, which provides consistent control of the burners in the furnace blower assembly to ensure proper and efficient operation.

The Lennox 11U66 .55 w.c. Pressure Switch is ideal for use with most Lennox residential gas furnaces, electric baseboard heaters, and fan-forced heaters

The Lennox 11U66 .55 w.c. Pressure Switch is a pressure switch produced by Lennox. Pressure switches are used to operate the burner control system of an air conditioner or heat pump system. They do so by completing or interrupting circuits that are wired to the equipment's burner or main gas valve when specific pressure conditions are met in the heating and cooling coils of the entire unit.

The Lennox 11U66 .55 w.c. Pressure Switch is used with gas-fired forced air furnaces. It is not compatible with other Lennox models. It must be used with the 101532C912C000 or 101521C912C000 Honeywell Programmable Thermostat.

Many Lennox systems are available in a .55 w.c. pressure switch; however, this is not the switch that was installed in your heat pump when it was manufactured. This pressure switch should only be installed on the Lennox Open Coil Heat Pump and will not work properly if it is installed on a different model or brand of air conditioner. Do not use the information and illustrations shown here for a system other than a Lennox Open Coil Heat Pump, as they may result in improper installation of your system and cause property damage, injury or death.

The 11U66 is a 0.55 WALKER® Brand Pressure Switch. Product types included in this listing are Pressure Switches.

This pressure switch has a maximum working pressure of 55 psi and 0.55 w.c. working vacuum. The switch has a three position inlet solenoid valve, which is actuated by the manual reset linkage and an actuating rod. The electrical mechanism is arc-type solid state.