Available space: air cooled chillers also have an advantage when space is limited or at a premium, since there is no requirement for a water cooling tower or mechanical room. However, they require significantly more space than water cooled chillers to achieve the same capacity, and there are portable water cooled chiller systems available for facilities with space constraints.
Airflow obstruction: obstruction to continuous airflow will have a severely negative impact on the performance of air cooled chiller units - high walls and other buildings or structures close by could all be an impediment to the airflow required for an air cooled chiller to work properly.
Noise of operation: due to the frequently running motors and fans, air cooled chiller systems are noisier in operation than water chiller units. This can cause issues, especially in densely populated residential areas.
Which Type of Chiller is Best?
When evaluating whether to choose a water cooled or air cooled chiller system, there are several important factors to consider. These include the overall system costs, the size of the HVAC unit, the ambient conditions at the installation location, the life cycle costs, and installation considerations.
Generally, water-cooled chillers are more efficient and have a longer lifespan than air-cooled chillers. However, they require more maintenance, and they also require a dedicated space for the cooling tower. Air-cooled chillers, on the other hand, are simpler to install and maintain, but are less efficient and require more space to achieve the same capacity.
Additionally, there are drawbacks associated with both water and air cooled systems that should be taken into account. For example, water availability and night time ambient temperatures can impact the feasibility of using a water cooled chiller system, whereas space considerations and airflow obstructions can affect the suitability of air cooled chillers.
Ultimately, there is no definitive answer as to which type of system is best. Design engineers must carefully evaluate each situation and location to determine which system will be the best fit based on the specific factors involved.
Our experienced engineers are on hand to discuss your cooling requirements, and advise on the best possible options for your needs.