General (Please print this page for reference.)

The system works by forcing water through fine nozzles at high pressure. This causes evaporative cooling. It does not require animals or people to be directly in the "mist" to benefit from the effect. As the mist evaporates it draws heat from the surrounding area (Latent Heat Principle) and cools the adjacent area. The systems works best on hot days when evaporation is more rapid.

Water Supply.

 Water must be supplied to the pump at all times when it is running or, it will quickly damage. Water pressure should be above 0.3 bar at all times.Note that where protection circuits have been added the pump will cut off if the pressure fall below 1 bar. Water inlet temperature should be below 55 degrees centigrade Where low pressure misting fans are fitted these are fed directly from the water supply without using a pump. Water pressure should be between 3 and 5 bars. These fans can be run seperately at any time with or without water. To reduce the risk of nozzle blockage it is important to maintain a clean supply of water to the pump. In most circustances we recommend additional filtration to the main water supply.

Pump Maintenance.

The pump requires little maintenance but the oil should be change initially after 50 hours. Then every 500 hours or every three months.(In hot climates manufacturers recommend more frequently changes). Change the oil only when the pump is hot. Use SAE 30 auto engine oil non detergent type. The oil level can be checked through the round transparent sight gauge. It should be at the middle of the indicator.

General Maintenance.

Nozzles are at the heart of the system. They are very fine with the most common size diameter of 0.2 mm Depending on water quality metal nozzles can become blocked with particles or calcify. They can be easily removed with fingers and immersed in vinegar for one or two hours.Where ant-drip is fitted this must also be dismantled and immersed in the solution. Do not attempt to clean nozzles by poking with wire as this will damage the orifice. When replacing nozzles do not use tools, finger tightness is sufficient Note if nozzles begin to show signs of wetting with the cone of water reducing in width, this indicates that they are starting to block and should be cleaned.