compressor comprssion ration-air conditioning

[atlantis]

I'm getting old and can't remember what the normal compression ratio is for air conditioning....

[mark beiser]

Define "normal".

[Saturatedpsi]

There is a "design" evaporator temperature and "design" condensing temperature, for a given set of operation conditions. The compression ratio is whatever it is.

[Williamsma]

2 to 1 or better.

[rundawg]

I'm getting old and can't remember what the normal compression ratio is for air conditioning....

Here is a RSES Journal rule of thumb answer to your question - see attachment.