Hvac Safety Switch Wiring

Some systems have an internal time delay on the blower and will continue to run for 30 seconds to 60 seconds after receiving a low voltage signal to turn off.

Hvac safety switch wiring.

Safe t switch detects clogged a c condensate drains and shuts off the system to prevent water damage to floors walls and ceilings. Most of the time an algae growth is the culprit blocking the drain. Before the pan overflows and check for plumbing leaks. If wired correctly unit will stop running.

Let s start with some float switch basics float condensate. Depending on whether you have a 110v or 220v circuit you will have either 3 or 4 wires. Plug drain downstream from installation. Point and run unit to fill pan.

Wiring your disconnect switch will vary slightly from one type of switch to another. It may be trap is clogged and float is doing its job. Confirm that float rises and unit stops. Test switch by lifting float with unit on.

Condensate overflow prevention devices or float switches as they are often called are such simple devices that you wouldn t think there would be much room for controversy. One will ground a bare copper or green wire one will be neutral a white wire and one or two will be hot wires black or a combination of black and red. Ac acfloatswitch amazon floatswitch how to install and connect ac float switch rectarseal ss2 in this video i show how to install ac float switch. Turn the hvac circuit breaker on and set the thermostat to run on cool lift the float arm on the float switch while the system is running and hold it for at least 1 minute.

We are here to help you to learn how to do hvac service things like. If the air handler s float switch has tripped the primary condensate drain has stopped up due to a blockage and the blocked water has tripped the float on the float switch. Video continue reading safe t. Safety float switch issues.

In my experience there are few areas of the trade where technician and installer preferences and opinions vary greatly. Wire switch as directed under wiring below. However small lizards or frogs occasionally become lodged in the pipe stopping the flow of the water. Bleach should drain quickly from safety float.

05 01 2013 08 13 am 5. Can be installed on a sloping line and does not need to be level or plumb. Can be installed horizontally or vertically inline or on the primary pan s auxiliary drain outlet by using the included adapter bushing and cap.