The outdoor AC is usually a unit consisting of 2 essential components, which is namely an AC condenser  and an air-conditioning compressor . The motor of the AC compressor is a pump which sucks the low pressure gas refrigerant and compresses the gas into high pressure gas and high temperature. The piston typically moves up and down inside a cylinder inside an AC compressor motor, sucks refrigerant gas or AC freon as the piston falls and compresses the refrigerant gas as the piston moves up. For more information , please visit our website www.serviceairconsingapore.com . The refrigerant gas of AC at high pressure and temperature then leaves t