Hello,
i'm tryng to recharge my FD with a kit of envirosafe refrigerant.
I Made a vacum just to remove oil and to check any leak.
No leaks, so i proceeded.
I filled a bottle of oil (oil charge 3) and its entered all in
then i was going to fill with a bottle of industrial refrigerant but i don't know wy this bottle dosen't put gas on the line.
Offcourse i was using the low pressure line.
during engine running the compressore dosen't start and forced to start the pressure on the low side line is about 20-30psi not more.
If I open the bottle the pressure go up to 80psi but i noticed that is the pressure of the bottle and it dosen't go on circle even with the compressor working.

Any help? thanks

 

You can only charge while the compressor is on. When the compressor is running, the pressure on the low side will drop allowing refrigerant to enter the system. While disengaged, the entire system will equalize to a resting pressure which is much higher than the bottle. Initial charge will take some time as the compressor cycles. It is cycling because of the safety switches. As you inject more refrigerant, the low side will hold longer and longer until it no longer cycles off.

I recommend a set of low and high side gauges so you can monitor both as you charge.

There are also some good write-ups on here. Search ES12. You also may want to google A/C basics to see how the system works.

 

Your A/C must be on full cold and max fan speed with all vents open, to get a nice good charge.

but yes..... research A/C charging please.


The FSM has the proper pressures and capacity

 

^ Agreed. Also, remember the ES12 is often charged at 1/3 the weight of R12. It is also charged as a liquid with the can upside down. Some still charge by pressure based on ambient temperature. Once successfully charged, some report that it takes some driving time to get colder temps. ES12 must cycle through the system a bit. However, it is a far superior refrigerant than converting to R134. Good choice.

 

Thanks, i made all consideraton You told me, now i'm going to try again and check if i will have more lucky

 

HOW MUCH OIL DID YOU PUT IN?


I have been using it for many years without any problems.

Attach the normal charging manifold so that the low and high sides are connected to their respective connectors on the AC lines.
Then you vacuum out the system, do it to both low and high sides.
Close both valves. Connect the freon to the yellow charge hose, and open the freon can valve. Bleed any air out of the yellow hose valve.
Open both low and high valves without the system turned on and running. This will pre-pressure both sides of the system when it is not running.
You should be able to get both side to around 100 psi.

Close the high side valve, start the engine, engage the AC, watch pressure as it should not take over one can. Adding extra freon with no increase of pressure makes the system less effective.

 

Follow instructions:

http://autorefrigerants.com/Envirotechnical.htm

^ I used the ES-12a stuff and my A/C was blowing cold air. I only used about 1.5 cans of the stuff.

My experience: https://www.rx7club.com/3rd-generati...needed-959485/