UNIT AIR CONDITIONERS
Many properties use smaller wall unit or window air conditioners, which are typically serviced by on-site maintenance personnel. Unit air conditioners work in much the same way as refrigerator. An evaporator coil cools the interior (in this case room), and the condenser coil releases the hot air outdoors. Refrigerant is moved by a pump through tubes between the two coils to transfer the heat. A fan blows the cool air into the room.
Some simple maintenance tips can help keep the wall and window units work properly. Keep the filter and coils clean and replace the filter as recommended by the manufacturer. To clean, remove the inside grill, carefully take out the foam filter, and wash it in warm soapy water. If the filter extremely dirty, more than one washing may be needed. Be sure to rinse and allow the filter to dry before replacing. Filters that are no longer effective can be inexpensively replaced.