Cleaning of central air conditioning refrigeration units, commonly heard about is the central air conditioning cleaning, but rarely is the internal cleaning of the air conditioner mentioned, especially the cleaning of the fan coil units. Fan coil units cool or heat indoor or outdoor air through the evaporator and then send it into the room, thereby lowering or raising the indoor temperature. Therefore, its cleaning is crucial.

Cleaning a fan coil unit involves first completing pre-cleaning documentation, confirming the records before shutting down the air conditioner; then clean the filter and fins, inspect the fan; next, clean and inspect the motor; of course, the housing cleaning is also essential; after the cleaning is complete, install the filter, check the inlet and outlet water valves, Y-type filter, inlet and outlet water flexible connections, and insulation; apply cleaning tags, and then start up the unit.

Generally, air-handling units should be cleaned once a year based on the level of contamination, and timely repair or replacement is required for any leaking pipe joints or valves. Pay close attention to the sensitivity and operational status of可控 components during regular checks. More attention, more frequent cleaning.