The cold medium of the air conditioner is water, so the water source should be in the open state for a long time, and the water pressure should be greater than 1.5Kg per square meter. When the unit is running, if there is no refrigeration effect, check whether there is water shortage again. If there is water shortage, the indicator light is on, and further check whether the faucet is closed, whether the water pressure is insufficient, whether the water inlet valve and pump and the water level sensor are damaged;

In order to ensure more stable performance of evaporative cooling unit efficiency, please use the cooling fan under the following conditions:

A) Ambient temperature: 18℃ -- 45℃

B) Ambient relative humidity: ≤85%;

C) Atmospheric pressure: 86kpa-106kpa;

D) Water supply should be softened, water supply temperature ≤45℃, water supply pressure: 0.15-0.6mpa;

E) Voltage deviation not exceeding ±10% of rated voltage;

F) The air quality of the environment used should meet the grade iii standard of GB 3096 or above (including grade III);

G) Non-corrosive environment.