AC Question

[Mike in S Fla]

Replaced one of my 10 k evaporator units with a new one thats charged with 422b not real happy with the heat transfer with the new gas,
considering purgeing system and charging with R22 any thoughts?

Thanks Mike

 

[Mike in S Fla]

Correction meant to say condensing unit not the evaporator

 

[Boatsb]

Id clean and evac the BS422 and start with real refrigerant.

If its so good why is it legal?