Do I have rear AC?

[Vanutty]

I do have two small vents, one under each front seat that point in the direction of the back seat passengers feet. Is that the extent of having rear AC?

I'm trying to figure how much refrigerant to use. The sticker under the hood says 2lbs 4oz for front only, and 3lbs for front and rear.

[potskie]

If you have rear AC at the back of the van there will be a large and I mean large piece of trim with vents in it. That goes from the floor on one side all the way up to the roof across and down to the floor on the other side. Those vents under seats are just to assist in heat or cooling the centre of the van. Also on the dash to the right of the stereo above the rear wiper control and rear heat control have one labeled for the rear A/C.

[Vanutty]

Thanks for the quick reply. I don't have rear AC then.

Thanks again.

[Hundredcaliber]

Do I have rear a/c? I have a Heater core and fan in a small unit on the drivers side of the van. With a heater switch on the dash. On the passenger side in the rear I have another unit that larger with a fan with air inlets on the unit, and also vents in the side wall from the side door to the rear door. Looked under the van it doesn't have metal a/c type line it has hose? On the dash there an A/C switch next to the heater switch. Nothing in the ceiling. Do I have rear a/c?

[sixsix]

If you have both "factory" rear heat and rear a/c, you would have both switches on the dash near each other.
Both units are on the driver's side.
Rear Heat unit, like you said, is behind the driver's seat. Rear A/C is at the back pillar, also driver's side.

If you have a unit on the pass. side, it may be an aftermarket, conversion van system.