1# Climate type
High/Medium/Low temperature, which type you need? Are you in tropical zone , temperate zone, or frigid zone? Different temperature uses different refrigeration products, different temperature has it’s unique characteristics, make sure before buying.
2# Refrigerant
We have R22/404/410A/32/134A/448A/449A.. many types refrigerant to choose. First confirm which product you will buy, next you should know if your government has any forbidden about refrigerant.For example, R22 is forbidden by many countries, R404 is forbidden in some European counties, etc.That is very important before you confirming your order.
3# Application
Household uses 110~220V, industrial or commercial purpose uses 380V normally, meanwhile, household places uses small or medium cooling capacity is enough, industrial or commercial sites need using big capacity ( accordingly to the area size).
4# Energy Consumption
Inverter type can save 30% energy bill, and can be safer used in areas with unstable voltage.Of course, the price is more higher.Meanwhile, don’t misuse your frequency, your country should use 50Hz or 60Hz, not both.