When install new air-conditioner or replaced new compressor or change new expansion valve,we need to evacuation or vacuum process.This is important to ensure no air inside the piping system.For easy understanding,this process is to vacuum the system to take out the air and moisture.

If air remain in the air-conditioner and refrigerant piping,it will affect the compressor performance,reduce the cooling capacity,clogged the cycle of refrigerant and could lead a malfunction.

This procedure very important to make sure air-conditioner running properly and can use for long period without breakdown.All maintenance person or electrical technician must know how to perform evacuation procedure. read more