Product Images Website C65-min
WebSite Product Images 1000x1000 C65
Product Thumbnail 1000x1000 How keep cold stores dry
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Product Images Website C65-min
WebSite Product Images 1000x1000 C65
Product Thumbnail 1000x1000 How keep cold stores dry
OI_Blog_sri-lankan-case-unit
Cotes Cold Store

C65C

Adsorption dehumidifier for cold storage and refrigerated environments

The C65C is part of the Cotes Cold Store product family — adsorption dehumidifiers developed specifically for humidity control in refrigerated and frozen storage environments.

Cold storage facilities 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 C65C removes moisture from the air before condensation or ice formation occurs, helping stabilise the internal climate of cold storage facilities.

Unlike refrigeration systems, which primarily control temperature, the C65C uses adsorption dehumidification to control the dew point of the air, reducing condensation and ice formation inside refrigerated environments.

This approach helps improve operational safety, reduce ice formation and support stable climate conditions in large cold storage installations.

Explanation of Naming

The product designation follows Cotes naming logic:

  • C – Cotes adsorption dehumidifier platform
  • 65 – 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 C65C represents the largest-capacity 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 for reliable operation 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.
High-capacity cold-store system: The C65C provides the largest airflow and drying capacity 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 important in cold storage facilities?
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When humid air enters cold environments, moisture condenses or freezes on cold surfaces. This leads to ice formation, reduced cooling efficiency, safety hazards and increased defrost cycles.

Dehumidification removes moisture before condensation or ice formation occurs.

Refrigeration systems are designed primarily to control temperature. Moisture behaviour depends on the dew point of the air, which cannot always be controlled through cooling alone.

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

High humidity in cold storage facilities can lead to:

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

Controlling humidity helps maintain stable and safe storage conditions.

 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