• High-end configuration

  Active refrigeration system: using self-developed active and passive evaporative cooling high-efficiency heat exchangers, international-brand Copeland flexible scroll compressor, core independent PLC intelligent control system, stepless speed regulation and strong convection air system, and well-known brand throttling Components.

• Safe and reliable

  The unit uses clean energy, and it is equipped with multiple protection functions such as overheating, overcurrent, current interruption, high and low pressure, and stop-phase.

• Energy saving and Eco-friendly

  The unit adopts passive and active heat exchange, which is more energy-saving than conventional refrigeration and cooling systems, and it uses environmentally friendly refrigerants without pollution.

• Automatic switching between wet and dry mode

  In winter or in transitional seasons, when the outdoor temperature is low, the outdoor air exchanges heat with the airflow in the indoor equipment room to remove the heat from the indoor equipment room. When the temperature is high, the unit automatically starts the spray mode, and the heat in the indoor equipment room is discharged through evaporative heat exchange and air delivery.

• Straight expansion or cold-water coil operation mode

  When the temperature of the equipment room cannot be reached under the passive heat exchange in the wet mode, by starting the evaporative cold direct expansion or cold-water coil operation mode to cool the equipment room.

   

Principle Description

Straight expansion or cold-water coil operation mode
When the temperature of the equipment room cannot be reached under the passive heat exchange in the wet mode, by starting the evaporative cold direct expansion or cold-water coil operation mode to cool the equipment room.
The high-temperature air is sent to the equipment room after being temperature-adjusted by the dual-source evaporative cooling unit. The dual-source evaporative cooling unit is judged, identified, and commanded by the PLC control program for the evaporative passive heat exchanger, active heat exchanger, spray system and air convection system works normally to achieve precise temperature control and energy saving;