Thursday, 19 July 2018

Refrigerated Air Dryer

Refrigerated Air Dryer are used as most common types of air dryers because of their simple design, very little maintenance and relatively cheap in price. If you’re shopping for an Air dryer then Refrigerated Air Dryer is a very standard choice. Refrigerated air dryer life span is often longer than most air dryer because they don’t need any much and special maintenance it’s like set and forget. All you have to do just buy a quality refrigerated air dryer and install it properly.

As name implies and like other air dryer, a refrigerated air dryer’s work is cool down the air (like a Freezer). A wet compressed and warm air enters in the air dryer, and cooled down about 3 degrees Celsius and water vapor condenses into water then the water removed by a water-trap from the compressed air.

Process of cooling is same as your freezer and fridge are cooled. To cool down the warm air liquid is evaporated into the evaporator. A small compressor compressed the refrigerant and in the condenser it cooled again.

In these two pictures you can see the various parts of the refrigerant circuit of an old refrigerated air dryer and condensate trap with discharge lines. The whole inner upper area is an insulated evaporator.

Refrigerant circuit is in the background and in the middle condensate trap with water discharge line of a compressed air dryer.

In the middle refrigerant pipes which is connected to the evaporator and cooling fan with condenser at the right side.


Whenever you are shopping for a refrigerated compressed air dryer there are some safety majors and key points which you have to keep in mind.

Pressure: pressure is most important thing you need to care. In refrigerated compressed air dryer maximum it must be same or higher than your compressor.

Maximum Flow: The maximum air flow must be higher than what your compressor can deliver. While setting your compressor’s pressure you need to set that at higher level to avoid pressure drop because air has trouble passing through it.

Inlet Temperature: The inlet air pressure is the most important thing and it can be affected by temperature of the inlet air or by the temperature of the ambient air. It has maximum specified Intel temperature and this temperature can exceed, in two cases first one is your air dryer part is damaged or it doesn’t have capacity to reach at desire dew-point.

Maximum outside temperature: You have to careful about your dryer in summer because if you put air dryer in hot room most probably dryer will shut itself down due to overheat. So, you have to buy dryer according to compressor room.


Every design and type has its own needs and instruction and comes with manual and guideline for the installation and maintenance of Refrigerated Air Dryer.

Installation: Always install or unboxed a new dryer in cool and dust-free room and you will probably need about 1 liters of water per day. Normally voltage power consume by a dryer is about 115 (USA) / 230 (Europe). Cool temperature is also important because if it is too hot outside than the dryer become over-heated and breakdown may be occurred and also sometimes it is happen because of circuits get dirty.

Maintenance: There is no special maintenance need in these dryer you just have taken care about some points like fins (small plates) as they are very sensitive and also clean condenser once in a while. Steel brush is a good way to remove all the dust and there are also some special condenser fin combs for the cleaning.

There are some other problem occurred in dryer like it gets too cold sometimes. In winters, due to cool temperature or set point is very low and air dryer start dries air below 0 degree Celsius and water get start freezing. At some stage ice blocks the pipe completely and problem occurred.

Annair Drychill Tech (I) Pvt, Ltd Mumbai Manufacture Company Unit No. 101, I Wing, Plot - K1, Udyog Bhavan-2, Additional M.I.D.C, Anandnagar, Ambernath East, Thane- 421506, Maharashtra, India. Undoubtedly it is one of the best Manufacturer Company in Mumbai.

Mail US:

Call US: 9320950116/ + (91)-251 2620660