Classic Auto Air (2012 kit) Charging it today - how does it turn on?

[timmycharger]

I am finally getting around to charging the A/C system in my Charger. I bought the Classic Auto Air kit from 2012 which doesn't have the new fancy control panel. My Charger is a non A/C car originally and this version of the kit uses the standard heat only controls.

My question is how does it turn on? I know there is a micro switch under there that gets screwed to the control panel and another one by the box.

The paper instructions I have do not really say or maybe I am not seeing it? Do I just simply move the heater control to the coolest position and that triggers it?

Everything was installed back in 2015 so I really don't remember.  I believe there a few members that installed this back then and may know?

[b5blue]

I think the fan turns on function. The compressor won't engage without a r134 charge. Try googling instructions.

[John_Kunkel]

Do you still have the instructions?

https://www.classicautoair.com/wp-content/uploads/2021/01/1-2066-INSTALL-INSTRUCTIONS-06-29-21.pdf?

[timmycharger]

Those are the newer style instructions. I have the original 2012 instructions which were not helpful so we ended up just filling the A/C system and I messed around with the controls until I got the compressor to kick on. Turns out there are 2 micro switches that are activated by a plastic arm that is moved by the selector cable (heat, defrost, off). When you slide that back and forth, it moves the arm, bumping the switches.

The strange thing is I must have messed something up years ago installing this as both micro switches are broken. One of them is missing the metal spring completely, and the other one's metal spring is broken in half. See pic below. So what this is doing now is causing the system only to work out of the defrost vents until I can get replacement switches or modify the arm somehow.

Classic Auto air uses an electronic controller now which I believe does away with this system.

I plan on calling them today to see if they can help me.