A/C filter fittings

[weikleenget]

Hi, we had to do some engine bay reorganizing and still need to mount the A/C filter (long canister connected to system, I think it’s a filter? Pictured below)

Can anyone confirm what are the fittings for connections 1. 2. 3. 4 in the parts blowout here? 

Thanks! It’s hot as hell in Florida right now

 

[GTSBoy]

That cylinder is called the receiver dryer. It's a receiver (pressure vessel to provide some storage for a gas, although in this case it holds the refrigerant when it is in the liquid state) and it also has dessicant in it to absorb any water that manages to get into the system.

The fact that you have circled and numbered (number 2) the pressure switch block to which the dryer connects suggests that you do not have any of those parts in your possession. In which case, I would suggest not bothering to try to get the correct parts. Just get a mobile air-con service guy to come out, make up whatever lines and connection fittings you need to install a generic dryer and pressure switch to your car.

[robbo_rb180]

Just upgrade it all to this

https://frenchysperformancegarage.com/products/fpg-nissan-skyline-r32-a-c-air-conditioning-replacement-kit-r134a-fpg-039