What the different between a R22 coil an a R410A coil

Refrigearator evap coil is only frizing on 1/2 of coils, can you tell me why?

OK here is a qestion I have,if you replace a older R22 evaporator coil with a newer R410A Coil will you have to replace the out side condencer?if so can you just use 410a in a r22 system? # 2 question is: can you convert a stright cool air conditioner to a heat pmp by putting a reversing vave in...

Is it more efficient to have the air condition evaporator coil place in the attic of the 2nd floor of a two story home or have the evap. Coil place in the attic above the first floor and then run the duct up to the 2nd floor and down the 1st floor? I was told that it is more efficient for the evap...

Hi The evaporator coil needs replacing as my AC is not working. The problem I hve is that I have ordered one over the phone and now I am unsure that I have given the right model no and serial no. The numbers I gave are: Model # CLJ 36 1C Serial # 0509098270 I havejust come across an invoice...