Air Conditioning - "Cold" pipe insulation inside condenser unit?

Hi All,

Is there a reason why the cold r22 pipe inside the condenser unit is not insulated? The portion that is outside the condenser is well insulated all the way up to the evaparator, but not the short run between the compressor and the gage tee - about 30 inches. Not much, but still obviously loosing cool to the atmosphere. If I could wrap that in rubber and make it a little more efficient, I would, unless someone will point out a reason why it should stay bare.

Thanks for all replies.

Suction line insulation up to the condensing unit is required by code. The reason is not for efficiency but rather to prevent condensation from causing water damage to the structure.

So does this mean I can insulate all the way up to the compressor if I want to? But I get the feeling from your reply that I won't gain anything in efficiency, correct?

Probably have little effect. Well let me take that back it could hurt if your system has a suction side inline drier and you insulate over it, the insulation may hold dirt and moisture against the steel shell of the drier and cause it to rust thru over a long period of time causing a leak and large quantities of dead penquins in the Artic North.

Inline drier? Not familiar with that one :confused: Mine's just a short run of copper pipe, nothing hanging on it. But I get your point - don't bother. Thanks again.