Kunne High Pressure Switch with Siren and Emergency Light
The Kunne High Pressure Switch is installed on the refrigerant system 3/8-inch liquid line inside the Air Handling Unit (AHU). During operation of the outside Condensing Unit, in an event such as the fan motor being inoperable, the heat transfer will not occur and return the very hot liquid back to the AHU. The Kunne High Pressure Switch will sense the extreme high temperature on the refrigerant liquid line and automatically create a short circuit breaking the in-line fuse causing the air condition system to turn off.
When the fuse is cut, the siren with a built in light will sound and flash respectively providing the resident be notified with an audible sound and flashing light signifying there is something wrong with air conditioning system.