Hvac Safety Switch

Jose de la portilla of lennox learning solutions shares how hvac safety switches work and ho.

Hvac safety switch.

It shuts my ac system off. This is the switch used disconnects the power to the furnace turning it on and off as needed. Most building codes require a furnace switch or disconnecting means within sight of the furnace itself. Checking for water in a pan under the unit could tell you the drain is clogged.

This is where an ac float switch comes in. A c outdoor compressor condenser hvac unit service switch photo typically on the unit or on a building wall surface close to it. Usually indoors at or right on the indoor air handler blower unit this switch is normally always on except during equipment servicing. A furnace switch is more accurately called a furnace disconnect or furnace disconnect switch.

A c indoor air handler service switch. Simply empty the pan and flush out the drain line and the unit may start operating again. Those names are pretty self explanatory. Also sometimes called an ac safety switch ac float switches can be installed in the drain line of the air conditioner and if water begins to accumulate in the drain line a small ball valve inside the switch will begin to float.

What it does it gives your ac system the ability to detect if it has a clogged drain and if the switch detects a clogged drain scenario it immediately shuts the system off.