Compressor Rack System

20% power saving


  1. Higher energy efficiency ratio(EER)
  2. Less defrosting, smaller motor input
  3. 42kg/m3 high density PU/PIR panels

Product Description

Bitzer compressor rack uses multiple compressors in one system, bigger cooling capacity, safer, easier install and control. What’s more, each compressor is independent and run according to system loading, so higher efficiency and longer lifetime. 

compressor rack systems
Danfoss oil balance system

Danfoss oil balance system

Balanced oil level is very important for the compressor rack. If compressor no oil, it’ll damage soon.

compressor rack systems - copper pipe

High quality copper bending and welding

Specialized bend machine deal technology, 100% no leaking problem. In corners part, we use bending instead of copper corners.

Danfoss pressure controller

Danfoss pressure controller

For compressor rack, each compressor run based on the machine loading, so accurate pressure controller is very important.

compressor rack systems - control panels

High quality control panels

It’s equipped with Schneider electric, with multi protections including phase protection, phase lack, over current, too constant starting of compressor, discharge temperature, etc.

Condensing unit Features

Compressor type

Bitzer compressor and Screw compressor



Cooling type

Air cooled, water cooled, evaporative

Refrigerant type

R134a, R404a, R507a or R22

Place to assemble

Indoor/out door(concrete construction building/steel construction building).


220V/50HZ, 220V/60HZ, 380V/50HZ etc


Automatic electric controller, PLC

Quality Assurance

2.8MPA pressure test during produciton

Successful Case

Frozen fruits storage, daily inlet 10 tons, room temp -25C

Customer info: This project is in a tropical country, with ambient temperature up to +38C most of the year. Considered the machine stability and efficiency, we advise compressor rack systems. 
Order info: 
Compressor rack: 4x18HP Bitzer semi-hermetic compressors, with EC fan, with economizer.
Cold room dimension 32x12x5meter with ante room, 150mm PU panels with 0.6mm color plate. 

compressor rack unit
walk in freezer


How to identify the original new Bitzer compressor?

If the Bitzer compressor price is 40% lower, it may probably not original new compressor. Also, each Bitzer compressor has one security code, you could check it on the Bitzer website. 

Why compressor rack is better than a single compressor?

Compared to the single compressor, the compressor rack is safer, more power-saving, easier to maintain and install. Price is a little higher than the single compressor, but for the long term considering, it is a very economical efficiency.

Which condenser type is better? Air cooled or water cooled?

If you could offer water with good quality and adequate supplies, water cooled condenser is a better choice; If not, air cooled condenser will be better.

How does each compressor work on the compressor rack?

Compressor rack works based on the cold room loading. If the low loading in the cold room, one compressor runs; when more loading is inside the cold room, two or three compressors run.

If one compressor was wrong, will it impact the working of other compressors?

No, as compressors can work independently, so one compressor wrong will not impact other compressors’ working.

What is the warranty for the refrigeration unit?

One-year warranty. But with the original new Bitzer/Copeland compressor, the lifetime is 8~10 years at least. 

Do I need a compressor rack for my cold room projects?

Check our blog to find is it suitable for your cold room to use a compressor rack


Different prices for different customizations. Any size of cold room and requirements is acceptable.

Please feel free to let us know your demand information, we will contact you as soon as possible, looking forward to cooperating with you!

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