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Where is a better "Central Air Conditioning Maintenance Training" institution? And what is the prospect of air conditioning maintenance?
External structure of air conditioner

Air conditioning maintenance has a good prospect. Summer is very profitable, and winter is the maintenance of central air conditioning. Luoyang electromechanical school has been teaching by hand.

The whole air conditioner consists of indoor unit, outdoor unit, connecting pipe and remote controller. The indoor unit includes evaporator, cross-flow fan, indoor fan and electric control part. The outdoor unit includes compressor, condenser, capillary, AC fan, outdoor fan and electrical components.