1. Uphahla oluhlanganisiwe, imikhiqizo emihle iyonke, yezinga eliphezulu.
2. I-air duct ehlanganisiwe, umoya omkhulu wokungenisa umoya, ukusebenza kwe-inverter ephephile futhi esebenza kahle.
3. Ibhokisi nekhabhinethi kuhlanganisiwe, futhi imojula ngayinye yokuguqula ibhokisi ihlanganiswe nomzimba webhokisi, futhi ukubukeka kuyizinga eliphezulu.
4. Isikhala sithuthukisiwe, sisebenzisa ngokugcwele isikhala esisebhokisini, esilungele ukuhlolwa nokugcinwa.