A cooling tower is an installation that retreats heat from water by evaporation or conduction.
The industries use cooling water in various processes. As a result, there are also various types of cooling towers. There are cooling towers that create process water that can only be used once, before it is discharged. There are also cooling towers that create water that can be reintoduced in the production process.

Freshwater or central cooling system: Fresh water is used in a closed circuit to cool down the engine room machinery. The fresh water returning from the heat exchanger after cooling the machinery is further cooled by sea water in a sea-water cooler.
As discussed above, in the central cooling system, all the working machinery on ships are cooled down using circulating fresh water. This system comprises of three different circuits

As discussed above, in the central cooling system, all the working machinery on ships are cooled down using circulating fresh water. This system comprises of three different circuits

The most common central cooling system is a split system, which includes an outdoor cabinet containing a condenser coil and compressor, and an indoor evaporator coil, usually installed in conjunction with your furnace or air handler. The compressor pumps a chemical called refrigerant through the system.
emperature control of the process can be affected using electric, pneumatic, electro-pneumatic and self-acting controls. This Module details some common applications including process vessels, heat exchangers and high temperature fail safe control.

Air-cooled Series

Temp. Range


Humidity Range


Cooling Capacity

168/209 KW


  • High inductive electronic temperature control switch, and water pump, easy control the manu-facturing process liquid temperature(accuracy ± 0.5°C)
  • With Euro-well-known brand compressor, low noise, high E.E.R
  • No need cooling water tower.
  • Stainless steel plank type heat exchanger. Significantly promote the cooling efficiency, can save 20% energy.
  • The cold storage trough can store surplus energy according to the demand.
  • Microprocessor control panel and breakdown indication lamp.
  • Multiple security protected device, postponed and automatic return home circulated function.
  • Have dual-temperature system for choice.
  • With open-type stainless steel water tank, easy to clean and maintain.
  • Can set water supply by manual or automatic method.
  • With perfect anti-shock device and feet wheel design, easy to move.


  • The plastic hollow molding/plastics runner film roller cooling.
  • Plastic injection and punching molding cooling.
  • All kind microprocessor control machine tools, grinders, machine centers and combined lathe of the principal axis lubrication and hydraulic system cooling.
  • Laser cutting & marking machine.
  • Semiconductor and electron Instruments, ultrasonic cleaning equipment.
  • All kind of machine processes liquid cooling.


Model AT –720A
Temp. range 5~40°C(Indoor  )
Humidity range 40~80%
Power 3P –220/380V –50/60Hz
Coolant R22/R407
Cooling liquid Water
Export temp 8~30°C ± 1°C
Cooling capacity
Kcal-h 144,000/180,000
BTU-h 576,000/720,000
kw 168/209
Water flow L/min 760
Water pressure Kg 2
Water piping High pressure rubber tube, Stainless steel piping
Protection system No fuse magnetic switch, water level, against/lack phase, ultra-temp, overload protection
Compressor Kw 11×4
Cold-water inlet/outlet 2½"
Remote control AC220V、DC 24V
Color Black+White
Dimension LxWxH mm 5,850 x 1,050 x 2,110
Water tank L 500
Weight kg 2,550

Also have the AT-A2, AT-AL, AT-AL2 system further for your choice.
We reserve the right that modification designs and technique parameter change and will not notice specially.

The water-cooled chiller uses water to take away the heat of the condenser refrigerant. The heat exchange capacity of water is 25 times that of air. Therefore, the water-cooled condenser can be made smaller than the air-cooled condenser, but it requires more water tower. And the cooling water pump power consumption refrigerant (R22 or 134A) through the chiller compressor output high-pressure refrigerant (high heat) through the condenser (water-cooled or air-cooled) to cool down and then use the law of physics to use an expansion valve or capillary expansion to cool the refrigerant again After the evaporator heat exchange and then back to the compressor