The most effective and cost-efficient way to cool down any factory or industrial building. Our Open Space Cooler brand evaporative cooler series harnesses evaporative cooling technology to reduce air temperature and supply cool air.

An Evaporative Cooler or Open Space Cooler or, also known EVAP, is a device that cools air through the evaporation of water. It works by drawing warm air through water-soaked pads, causing the water to evaporate and cool the air. This cooled air is then circulated throughout a space, lowering the temperature.
EVAP are energy-efficient and environmentally friendly, making them a popular choice in dry climates where humidity is low. Unlike traditional air conditioners, they use much less electricity and don’t rely on chemical refrigerants.



Evaporative Cooler (EVAP) or Open Space Cooler is an energy-efficient and eco-friendly solution to maintaining a comfortable temperature in industrial spaces. By reducing heat through natural evaporation, it helps create a more pleasant working environment, significantly lowering stress and combating fatigue. This not only boosts productivity and focus but also contributes to employees’ overall physical and mental well-being.
A cooler workspace encourages job satisfaction, which in turn reduces turnover rates and fosters greater loyalty among staff. By investing in employee comfort with an evaporative cooling system, businesses can improve morale, retain talent, and create a healthier, more efficient workforce in the long run.
Supply air performance of the Open Space Cooling system depends on the outside atmospheric conditions. It is able to take the outside air and reduce the temperature down by a potential 10˚ degrees Celsius depending on the outside relative humidity. As a general rule, the dryer and hotter the outside conditions, the better the cooling performance.
In typical South East Asia conditions, the supply air temperature can range from 21˚ to 30˚ degrees Celsius.





Designed to reduce your operating cost, the cooler can automatically run at lower speeds once a desired temperature is reached in the ambient air. Temperature Adaptive.

This is done by cutting off the pump operation once the humidity has risen above the set limit. The pump will re-start after the humidity falls back to the set limit.

Both Evaporative Cooler Series OS 18 and OS 30 can be managed by a single Wall Controller for up to 40 units of both series combined. This is made possible with the use of a hub connector that links up to 4 coolers.

The Open Space Cooler is equipped with the Munters CELdek cooling pads as standard. Munters CELdek pad has the following advantages :



Creates a cooling sensation as low as ΔTPTD-12°C depending on atmospheric conditions.
We design and build high-quality insulated air duct systems that transport the cool air produced by the Evaporative Coolers and deliver it to the fixed worker locations.
When you purchase a Waterline brand Evaporative Cooler, you can be confident that we will also provide the design, installation, and maintenance of a reliable and effective industrial cooling system.
The Evaporative Cooler offers flexible installation options that can be customized to each customer's site requirements and operational needs without disrupting existing processes.








