"Cooling Fan" should be the proper use of this product in the following conditions: a. Ambient temperature: 18 ℃ --45 ℃; b. Relative humidity: ≤ 85; c. Atmospheric pressure: 86kpa - 106 kpa; d. Water subject to softening, water temperature is ≤ 45 ℃, water pressure: 0.15-0.6Mpa; e. Voltage deviation does not exceed the rated voltage of ± 5%; f. The use of ambient air quality should reach GB 3096 three more (including three) standard; g. Non-corrosive environment; units use a long time, should ensure that the unit is securely installed, if there are hidden dangers shall immediately notify maintenance professionals. This product during transport, installation, operation Please Keep away from fire, otherwise it will lead to burn units, or even fire. Please note that the water inlet pipe, drain well if connected, otherwise leakage damage other equipment or products may cause.