When cleaning an external air conditioner unit, the appropriate pressure of the air compressor is typically between 30 to 50 PSI (pounds per square inch) or around 2 to 3.5 Bar. This range ensures that you have enough pressure to effectively remove dirt, dust, and debris from the unit without risking damage to delicate components.
It's essential to avoid using high-pressure settings because excessive pressure can bend or damage the fins, coils, or other sensitive parts of the air conditioner. Additionally, high pressure may force dirt deeper into the unit, making the cleaning less effective.
To clean the external air conditioner unit properly, follow these steps:
- Turn off the power to the air conditioner to avoid any accidents.
- Remove any large debris or vegetation around the unit by hand or with a brush.
- Gently clean the exterior of the unit with a garden hose to remove loose dirt and dust.
- Use the air compressor set to a low to moderate pressure to blow away remaining dirt and dust. Maintain a safe distance and angle to avoid damaging the fins or other components.
- If necessary, use a commercial air conditioner coil cleaner or a mild detergent diluted with water to clean the coils. Rinse it off with a hose after cleaning.
Always refer to the manufacturer's guidelines and instructions for your specific air conditioner model, as there might be particular cleaning recommendations or restrictions. If you're unsure about the process or feel uncomfortable doing it yourself, it's best to seek the help of a professional HVAC technician to ensure the proper and safe cleaning of your air conditioner.