Unlike refrigerated air conditioning, to enable an evaporative cooler to perform to its maximum potential, it is necessary that it draw warm, dry outside air across the water saturated pads. This causes evaporation to take place and that results in a drop in air temperatures. However, this cooling process increases the humidity of the air that enters the room. The increase in humidity necessitates that a window or door on the other side of the room be left open to allow the moist, cool air to exit. If the cooler were allowed to operate in a closed room, it would be able to draw only the air inside the room, air that is already saturated with humidity. If allowed to persist the temperature and the humidity levels in the room would quickly rise to an uncomfortable level.

Following the quick guide set up instructions included with each unit is critical for getting the a maximum performance from your evaporative cooler.

First check and make sure that the water tank is full. The water indicator located on the top or face of the unit should be in the full position.

Evaporative cooling is humidity sensitivity ? the higher the humidity of the air being cooled the less the cooler will be able to lower the temperature. If the unit is not cooling properly check the humidity of the outside air being drawn into the unit. If it is over 55%, the unit is producing the lowest temperature that an evaporative cooler of its size and type can produce.

If the outside humidity is low then the unit may not be set up properly. Windows and doors must be left open and cross ventilation provided for. Please review the quick guide included with each unit for more detailed instructions.