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.
Hvac safety switch.
A furnace switch is more accurately called a furnace disconnect or furnace disconnect switch.
Many a c units have a water safety switch to stop them from operating if water could leak into your home and ruin ceilings and floors.
Jose de la portilla of lennox learning solutions shares how hvac safety switches work and ho.
Usually indoors at or right on the indoor air handler blower unit this switch is normally always on except during equipment servicing.
A c indoor air handler service switch.
A c outdoor compressor condenser hvac unit service switch photo typically on the unit or on a building wall surface close to it.
It shuts my ac system off.
Checking for water in a pan under the unit could tell you the drain is clogged.
Those names are pretty self explanatory.
Safe t switch functions features and design on toolboxtuesday.
This is the switch used disconnects the power to the furnace turning it on and off as needed.
Introducing the float switch a float switch is essentaially an electronic water sensor for your hvac system.
Most building codes require a furnace switch or disconnecting means within sight of the furnace itself.