What Is the Furnace Switch For? Michael Clark, founder of Pulled.com, a home management platform, says to look for the furnace switch, AKA the power disconnect switch.. “(It) often looks like a ...

Some advanced HVAC pressure sensors include pressure switch functionality, which serves as a crucial safety feature. These pressure switches can initiate a fail-safe response when a specified pressure ...

Low-pressure controls are a common accessory added to many refrigeration systems. They are normally used to electrically cycle a compressor on and off; however, when and why they do so will vary based ...