What does a trinary switch do?
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A “Trinary Switch” incorporates both high and low pressure cutoffs, plus adds an “electric fan engagement signal” (at 254 PSI) feature to help bring internal temperatures down. These switches are great insurance on any system, and should ALWAYS be incorporated.
What is air conditioning trinary switch?
It is a safety switch for air-conditioning systems. It is a three-function switch (tri-nary). It automatically shuts off the power to the air-conditioning clutch if the refrigerant pressure gets too high or too low. It will also automatically turn on the engine cooling fan when the compressor is running.
What is a binary safety switch?
From TBI Products. This Binary switch provides 2 essential air conditioning functions. It Protects the system (by disengaging the compressor clutch) from excessive high pressures or low system pressures. Don’t forget to install a safety switch.
How much freon does a vintage air system hold?
1.8 lbs
Vintage Air’s standard charge recommendation is 1.8 lbs (28 oz) of 134A refrigerant. This charge will be correct for most standard installations (dash-mounted systems), but some additional refrigerant will be required for a trunk-mounted system with a liquid line of more than 12 ft.
Do I need a relay for electric fan?
Most parts stores carry toggle switches and/or push-pull switches that will handle anywhere from 30-60 amps, so that would work. If you’re using one of those thermostatically-controlled deals (or a low amp rated manual switch) you should use a relay.
What is a trinary switch for aircon?
Before we get too far, it is important to understand what a trinary switch does. It is a safety switch for air-conditioning systems. It is a three-function switch (tri-nary). It automatically shuts off the power to the air-conditioning clutch if the refrigerant pressure gets too high or too low.
Where is the Trinary switch located on a car?
The trinary switch is located in the a/c refrigerant line near the car’s radiator / condenser. It senses the pressure of the refrigerant when the air conditioning compressor is engaged (running). The trinary switch is set to operate at three a/c refrigerant pressures: about 30 psi; about 190 psi; about 400 psi.
What are the Blue wires on the Trinary switch for?
There are a pair of blue wires on the trinary switch. These are the contacts for the cooling fan. One of the blue wires connects to ground. Either of the blue wires will work for this ground connection. In the Vintage Air diagram, you will see that the blue wire on the trinary switch is used to ground switch the coil of the cooling fan relay.
What should the pressure be on a trinary AC switch?
The trinary switch is set to operate at three a/c refrigerant pressures: about 30 psi; about 190 psi; about 400 psi. Also, how do I know if my AC pressure switch is bad? The most common symptom of a bad AC pressure switch is most likely that you will notice that the AC compressor is cutting on and off rapidly when you are idling your car.