1. Kushandisa R134a
2. Compactness chimiro nediki uye chiedza, nokuti pasina reciprocating mudziyo
3. Mutsindo wakaderera, Kushanda kwepamusoro nehombe yekutonhodza uye kushandiswa kwesimba shoma
4. Copper Aluminium bundy chubhu
5. Nekutanga kutanga capacitor
6. Kushanda kwakagadzikana, kuri nyore kuchengetedza uye hupenyu hurefu hwebasa iro dhizaini yekusvika pamakore gumi nemashanu