Several consecutive weeks of temperatures above 40°C have made going outdoors feel like being grilled. As the power source of your dental clinic, have you carried out maintenance for your Air Compressor and Suction units under high-temperature conditions?
Q: What maintenance work is required for Dynamic machine room equipment?
⚠️ NOTICE Before performing any maintenance or repair, confirm that the Air Compressor or Suction unit has been powered off. Work other than routine maintenance and repairs must be performed by personnel designated by Dynamic. Only manufacturer-specified spare parts shall be used.
Air Compressor
- Condensate Drainage Condensate readily forms during air compression. For Air Compressors without a drying tower, condensate tends to accumulate inside the air tank. Due to the sealed nature of the tank, prolonged exposure to high temperatures can facilitate the growth of microorganisms and bacteria, contaminating both the compressed air and the air tank itself.
Solution: Open the drain valve of the unit to fully discharge all water and air inside the tank. The drainage frequency depends on local humidity levels. In low-humidity areas, drain once a month. In high-humidity environments, drain daily or weekly. Dynamic Air Compressors can be equipped with various drying towers and automatic drain devices. The inner tank is coated with a sterilising and anti-corrosion layer to guarantee the purity and dryness of compressed air.
- Machine Room Layout for Air Compressors Higher temperatures lead to thinner air (similar to the efficiency drop of Air Compressors at high altitudes). This reduces compressor efficiency, forcing the unit to stay in the loaded state longer under heavier loads and generating excess heat. Generally, the operating ambient temperature for Air Compressors should stay below 30–40°C. Sustained high-temperature exposure can damage core components, shorten service life and trigger equipment failures.
Solution: Ensure good ventilation inside the machine room. Additional exhaust fans may be installed to expel hot air and lower the ambient temperature. Keep high-temperature heat sources away from the Air Compressor, to prevent the unit from drawing in hotter intake air. If feasible, deploy a fresh air system to maintain the ideal ambient temperature of around 25°C for the machine room equipment.
- Regular Filter Element Replacement Periodically replace the inserts for mufflers or filter elements. This extends the service life of the Air Compressor and maintains consistent high-quality compressed air. Filter replacement helps prevent infections caused by bacteria or viruses. Especially during the COVID‑19 pandemic, it is critical to ensure clean, dry air for dental applications.
Suction
- Suction Line Flushing After treatment, use the strong and weak suction hoses of the dental chair to flush the negative-pressure pipeline by drawing in a cup of clean water. Avoid flushing in extreme heat, as residual moisture inside suction lines can encourage bacterial growth at high temperatures. Chlorine-containing disinfectants are prohibited for cleaning. Long-term use will damage the unit and reduce its service life.
- Filter Cleaning It is recommended to remove and rinse the equipment filter once every week. This prevents filter clogging and maintains the internal sealed space of the unit. High temperatures favour bacterial reproduction, which may cause damage to the Suction system.
- Safe Operating Requirements for Negative-Pressure Equipment Suction units shall be installed in a separate room, physically isolated from Air Compressors. Suction units generate substantial heat during operation. Where possible, ventilation, cooling and fresh air systems should be provided. The operating temperature range for negative-pressure equipment is 5–40°C.
- Equipment Air Outlet Must Vent to the Outside Per regulations, negative-pressure equipment must exhaust waste air to a safe outdoor area. Exhaust must not be routed into the clinic’s air-conditioning exhaust system or ceiling plenum. Each unit requires an independent exhaust pipe. Exhaust air can reach approximately 60–70°C. Take precautions to avoid burn injuries.
For more maintenance and servicing guidance, please contact your local Dynamic technical support.