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Refrigerated Air Dryers - Demand Managed dryers

Refrigerated Air Dryers - Demand Style


Demand managed refrigerated air dryers, known by various names such as refrigerant dryers or fridge dryers, utilise a twin heat exchanger design. Hot approach temperature compressed air, typically at 100°F, enters the dryer and an air to air heat exchanger. This exchanger is connected to the cold compressed air exiting the dryer, and subsequently cools the incoming air prior to it exchanging with the air to the refrigerant exchanger. The refrigerant compressor is kept to a minimum size and power consumption requirement because its approach temperature is now much lower, due to the air to air exchange. Refrigeration technology is utilised to dramatically cool the compressed air to 37°F to condense and remove moisture from the compressed air stream. These dryers are available in both air-cooled and water-cooled variants. The demand managed sensors and controller allow the dryer to assess temperature, load, and pressure dew point, cycling the refrigeration compressor according to inlet conditions.

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The system

The refrigerated air dryer typically sits downstream of a particulate removing pre filter assembly. At the outlet of the dryer we have the perfect temperature for the removal of oil, and therefore the installation of a coalescing oil removal filter is always recommended. The dryer and filters can be positioned in between air receiver storage tanks. Common sense would suggest that a wet tank is installed upstream of the dryer, and clean air treatment, and a dry tank will sit downstream. Your municipality will require you and your business to dispose of the oil/water condensate, which is removed by the dryer and filters, in accordance with municipal requirements and suspended oil levels. 

Frequently asked questions

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What else do Kaeser and Air Solutions Canada offer?

Rotary Vacuum and Rotary Blowers are other facets of Kaeser's product range.

Air Solutions will design, build and install any of the Kaeser range of products, including compressors, vacuums, blowers and a full range of clean air treatments. Our turnkey approach to rigging, piping, ductwork and electrical, means that one call does it all.

Do you offer delivery and pickup services?

Yes, we offer delivery and pickup services for all of our rental equipment. We'll work with you to schedule a convenient time for delivery and pickup that works with your schedule.

How it works

Our tried-and-tested approach to get you a reliable compressed air solution at the lowest possible cost of ownership looks like this:

Discovery call

Discovery call

Our solutions specialist visits your facility to discuss your current situation, pain points, future plans, and potential government incentives. We can undertake as little, or as much, of your project as you would like.

Requirement analysis

Requirement analysis

We analyze the equipment at your facility, its performance, condition, and suitability. We ensure that storage, piping, and compressed air quality are in line with your requirements and best practices.

Turnkey installation

Turnkey installation

Everything we do is “in house.” Air audits, leak detection, design, build, and service are handled quickly and efficiently.This approach means that we manage every aspect of your project, avoiding finger pointing and single source supply for you and your organization.

Maintenance and repair

Maintenance and repair

Whether you require emergency breakdown response, predictive, or preventative maintenance our team has you covered. Air end and motor service and rebuilds, piping, and analysation are also available.

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Contact Us

When you speak to us, ask for an Air Demand Analysis. It will give you the performance data of your current compressed air system and show the savings you can generate. We offer a performance guarantee - if we don’t identify inefficiencies within your system which are equivalent to the cost of the ADA study, then the study will be free! And in the meantime, download the Ultimate Guide on Rightsizing your Compressed Air System. You can stop being frustrated that they were over promised and under delivered, and instead be confident with a radically different solution that serves your needs better at a lower cost. 


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