Product Images Website C30C
WebSite Product Images 1000x1000 C30C
Product Thumbnail 1000x1000 How keep cold stores dry
Product Images Website C30C
WebSite Product Images 1000x1000 C30C
Product Thumbnail 1000x1000 How keep cold stores dry
Cotes Cold Store

C30C

Adsorption dehumidifier for cold storage and refrigerated environments

The C30C is part of the Cotes Cold Store product family — adsorption dehumidifiers specifically developed for humidity control in cold and frozen storage environments.

Cold stores are exposed to continuous moisture ingress through door openings, air exchange and product handling. When humid air enters low-temperature environments, moisture quickly condenses or freezes on cold surfaces.

The C30C removes moisture from the air before condensation or ice formation occurs, helping stabilise the internal climate of cold storage facilities.

Unlike refrigeration systems, which control temperature but not airborne moisture, the C30C uses adsorption dehumidification to control the dew point of the air, reducing condensation and ice formation inside refrigerated environments.

Explanation of Naming

The product designation follows Cotes naming logic:

  • C – Cotes adsorption dehumidifier platform
  • 30 – Capacity class within the product family
  • C – Cold Store application variant

The Cold Store designation identifies units optimised for low-temperature environments rather than configurable Modular installations.

Position within the Cotes Cold Store family

The C30C represents the compact unit within the Cold Store range.

The Cold Store family consists of:

  • C30C – compact cold storage dehumidifier
  • C35C – mid-capacity unit for larger refrigerated environments
  • C65C – high-capacity system for large cold storage facilities

Although based on the same core adsorption technology as the Cotes Modular platform, Cold Store units are delivered as dedicated, pre-engineered configurations rather than modular systems with add-on modules.

This ensures predictable and stable performance in cold environments.

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Cold-environment operation: Designed for humidity control in refrigerated and frozen environments where condensation and ice formation must be prevented.
Adsorption drying principle: Rotor-based adsorption removes moisture from the air and controls dew point independently of refrigeration systems.
Cold-store optimised design: Additional insulation and internal design adaptations help prevent icing and condensation within the unit.
Stable low-temperature operation: Engineered to operate reliably in cold storage environments down to approximately −25 °C.
Reduced ice formation: By lowering the dew point of incoming air, the system reduces condensation and ice formation on cold surfaces.
Compact cold-store system: The C30C represents the compact capacity level within the Cotes Cold Store family.
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TECHNICAL DATA

Model DRY AIR (M3/H) REGENERATION AIR (M3/H) CONNECTED LOAD (kW) MOISTURE REMOVAL CAPACITY (KG/H) DIMENSIONS (WxDxH) DATASHEET PRODUCT MANUAL
C30C 300 50 1,4 + 0,34 0,3 554 / 399 / 786 Datasheet
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C35C 750 / 1000 96 / 129 2,8 +1 / 5,3 +1 0,5 / 0,9 758 / 494 / 1116 Datasheet
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C65C 1900 / 3700 340 8 +2 / 11 +2 1 / 3 1204 / 783 / 1741 Datasheet
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COLD STORE HUMIDITY CONTROL

Designed to prevent condensation and ice formation in refrigerated environments where moisture ingress occurs through door openings and air exchange. 

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ADSORPTION DRYING PRINCIPLE

Rotor-based adsorption drying removes moisture from the air independently of cooling systems. 

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LOW-TEMPERATURE OPERATION

Engineered for stable operation in cold storage environments where ambient temperatures may fall below freezing. 

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COLD-STORE OPTIMISED DESIGN

Additional insulation and internal design adaptations help prevent internal icing and ensure stable operation. 

Frequently Asked Questions

For our full FAQ section you can go to www.cotes.com/FAQ 

On this page we highlight some of the more frequently asked questions from customers.

 

Why is dehumidification needed in cold stores?
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When humid air enters a cold environment, moisture condenses or freezes on cold surfaces. This leads to ice formation, slippery floors, reduced cooling efficiency and increased defrost cycles.

Dehumidification removes moisture before condensation or ice formation occurs.

Refrigeration systems primarily control temperature. Moisture control in cold environments depends on the dew point of the air, which cannot always be managed through cooling alone.

Adsorption dehumidifiers reduce the dew point of the air and therefore prevent condensation and ice formation.

Excess humidity in cold stores can lead to:

  • ice formation on floors and equipment
  • reduced evaporator efficiency
  • increased defrost cycles
  • safety hazards for personnel
  • product quality issues

Controlling humidity helps stabilise the cold storage environment.

 Cold Store units are based on the same adsorption technology but are optimised specifically for cold environments. They include additional insulation and cold-environment adaptations and are delivered as fixed configurations rather than modular systems