Efficient solutions for cold rooms & walk in refrigeration

  • Overview
  • Highlighted products
  • Documents
  • Tools and apps
  • Learning
  • Case studies
  • FAQ
  • Contact us

A cold room solution to meet every need

Found within the cold chain are cold storage facilities such as cold rooms. These facilities store or process both refrigerated and frozen products. They can be at the actual process facility or part of the distribution chain.

Compliance with hygiene and food safety regulations, but also energy regulations, is critical. Whether for a new installation or renovation, other parameters that must be considered when purchasing a cold room include ease of selection, refrigerant choice, installation options, reliability, maintenance, and operating costs.

Danfoss offers the widest portfolio of solutions for cold rooms to suit the diverse capacities, temperatures, and processes – for plug-in or remote installations, in small and larger sizes.

We offer contractor-friendly products & cold room solutions built with market leading expertise that are available everywhere and enable you to comply easily with regulations and save on installation and maintenance of walk-in refrigerators. Make the right choice for optimum protection of perishables, efficient operation and long lifespan.

Danfoss is a trustworthy partner for the cold room storage industry, with an extensive range of refrigeration monitoring solutions, experience and know-how. Our solutions for reliable walk-in cold rooms are specially developed to cover the extensive range of commercial refrigeration applications within; food service (restaurants, catering), specialty retail (butchers, bakeries etc.), process cooling (lab, medical, fruit ripening etc.), convenience stores, discount stores, and pharmacies.


Prosa IoT: A simple remote monitoring system

Prosa IoT: A simple remote monitoring system

With our extensive Prosa IoT portfolio for Commercial Refrigeration, we are fulfilling key requirements to keep perishables fresh and safe, reduce food loss and service costs, and increase revenue.

Features and benefits

Widest portfolio for all types of cold room and walk-in refrigeration applications

Reliable and highly energy efficient solutions

Long service life, low operation and maintenance costs

Compliance with refrigerant and energy regulations

Products suitable for use with lower GWP and natural refrigerants

Global and local application expertise

Simple product selection with Coolselector®2 software

Learn more about cold room solutions

Highlighted products

  • if (isSmallPicture) { Condensing unit Optyma™; } else if (isBigColumns) { Condensing unit Optyma™ } else { Condensing unit Optyma™ }
    Optyma™ iCO₂

    Optyma™ iCO₂ 4.6 kW (MBP) condensing unit is a robust and low-noise solution for natural refrigerant R744 compatibility.

  • if (isSmallPicture) { Danfoss Optyma™ condensing units; } else if (isBigColumns) { Danfoss Optyma™ condensing units } else { Danfoss Optyma™ condensing units }
    Condensing units

    OptymaTM ranges of condensing units match your commercial refrigeration application needs, with their unique versatility and simplicity to install. Multi-refrigerants, using low-GWP and natural refrigerants, highly efficient, they are a perfect fit for small to mid-size cold rooms, display cabinets, milk cooling tanks, fermentation rooms and much more.

  • if (isSmallPicture) { Refrigeration compressors - Danfoss; } else if (isBigColumns) { Refrigeration compressors - Danfoss } else { Refrigeration compressors - Danfoss }
    Compressors for refrigeration

    Danfoss focuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms, display windows, ice making machines, glass door merchandizers, process cooling etc. Their qualification with lower GWP refrigerants make them compliant with refrigerant regulations such as F-Gas in Europe.

  • if (isSmallPicture) { Thermostatic expansion valves - Danfoss; } else if (isBigColumns) { Thermostatic expansion valves - Danfoss } else { Thermostatic expansion valves - Danfoss }
    Thermostatic expansion valves

    Thermostatic expansion valves (TXV) are available as parts programs, i.e. with separate valve body and orifice assemblies, or as complete valves (fixed orifice). The category also contains thermostatic injection valves.


Type Name Language Valid for Updated Download File type
Brochure Cold Room brochure for installers_FIN Finnish Finland 16 Jan, 2019 5.5 MB .pdf
Brochure Cold Room brochure for Installers_SWE Swedish Sweden 16 Jan, 2019 892.9 KB .pdf
Brochure Cold Room brochure for Installers/Contractors Europe English Multiple 08 Nov, 2018 871.8 KB .pdf
Brochure Cold Room brochure for Installers/Contractors Europe Danish Denmark 17 Jan, 2019 850.2 KB .pdf
Brochure Cold Room brochure for OEMs Europe English Multiple 29 Jun, 2017 8.2 MB .pdf
Brochure Cold Room brochure for OEMs North America English Multiple 08 Sept, 2017 4.0 MB .pdf
Brochure Danfoss Solutions for Walk-in Coolers and Freezers English Multiple 10 Jan, 2024 3.7 MB .pdf
Article Food safety Focus on system performance, reliability and connectivity English Multiple 21 Feb, 2024 1.4 MB .pdf

Tools and apps


Cold room training program - Danfoss Learning

Cold room training program

Learn how to achieve better food preservation through Cold Room solutions with our online training program.

Case studies

  • if (isSmallPicture) { Rivoira workers packing apples; } else if (isBigColumns) { Rivoira workers packing apples } else { Rivoira workers packing apples }
    Refrigeration systems preserve apple quality using VSDs with integrated condition monitoring and DrivePro Remote Monitoring service

    ITALY: At Rivoira Group, VLT® drives with built-in condition-based monitoring help preserve fruit perfectly by ensuring utterly reliable refrigeration.

  • if (isSmallPicture) { ; } else if (isBigColumns) { } else { }
    Efficient Optyma™ Plus ease cold room installation at new fast food restaurant

    Fast food restaurant chain’s new restaurant needed refrigeration to be quiet, energy efficient and reliable – with easy installation and servicing. Optyma™ Plus condensing units were the obvious choice.

  • if (isSmallPicture) { Gibson’s Farm Shop achieves over 20% energy saving with Optyma™ Plus INVERTER; } else if (isBigColumns) { Gibson’s Farm Shop achieves over 20% energy saving with Optyma™ Plus INVERTER } else { Gibson’s Farm Shop achieves over 20% energy saving with Optyma™ Plus INVERTER }
    Gibson’s Farm Shop achieves over 20% energy saving with Optyma™ Plus INVERTER

    The growing store added new refrigeration capacity – and still saw energy bills fall – after replacing two condensing units with a single adaptive package.

  • if (isSmallPicture) { A new cold room in time for Christmas with fast-installation Optyma™ Slim Pack; } else if (isBigColumns) { A new cold room in time for Christmas with fast-installation Optyma™ Slim Pack } else { A new cold room in time for Christmas with fast-installation Optyma™ Slim Pack }
    A new cold room in time for Christmas with fast-installation Optyma™ Slim Pack

    A high-performing cold room delivered in a matter of days, so Hurren’s Butchers could maximize seasonal business.

  • if (isSmallPicture) { Hot gas defrost - the next step in commercial kitchen refrigeration; } else if (isBigColumns) { Hot gas defrost - the next step in commercial kitchen refrigeration } else { Hot gas defrost - the next step in commercial kitchen refrigeration }
    Hot gas defrost - the next step in commercial kitchen refrigeration

    As authorities and customers focus on energy efficiency standards and ratings to understand not just what a commercial refrigeration unit costs to buy, but what it costs to operate, the refrigeration design engineer needs to look again at the fundamentals and consider new approaches.

  • if (isSmallPicture) { Raising the stakes in energy efficiency; } else if (isBigColumns) { Raising the stakes in energy efficiency } else { Raising the stakes in energy efficiency }
    Raising the stakes in energy efficiency

    Everyone was a winner in a three-horse race to supply coldrooms and cellar coolers to the new Princess Royal Grandstand at Cheltenham Racecourse.


  • if (isSmallPicture) { CO2 Refrigeration Solutions; } else if (isBigColumns) { CO2 Refrigeration Solutions } else { CO2 Refrigeration Solutions }
    Danfoss – Forward. Naturally. With CO₂ Refrigeration Solutions.
    Wednesday, 29 March 2023

    Meet CO2. The sustainable, natural refrigerant delivering changing the game for commercial refrigeration.

  • if (isSmallPicture) { online grocery applications; } else if (isBigColumns) { online grocery applications } else { online grocery applications }
    Danfoss can support OEMs building new online grocery applications
    Thursday, 12 May 2022

    With the rise of new online grocery fulfilment models, Danfoss has the application development facilities, industry expertise, and a comprehensive product portfolio to support OEMs developing refrigeration solutions for new food retail models, such as outdoor refrigerated lockers.

  • if (isSmallPicture) { HRU; } else if (isBigColumns) { HRU } else { HRU }
    Reduce energy consumption and go green with the Danfoss Heat Recovery Unit
    Monday, 4 April 2022

    The focus on cutting energy consumption and reducing the carbon footprint has never been greater, but results are often achieved by compromising usability or efficiency. The Danfoss Heat Recovery Unit delivers strong environmental benefits as well as significant reductions on heating bills—all delivered with a short ROI.


FAQs on cold rooms

A cold room is an insulated or cold-air room that keeps a specified temperature range. Cold rooms are for storing various kinds of goods across different sectors. Typical product types are food and beverages, biologics, textiles, and pharmaceuticals.

A cold room allows precise control of temperatures in commercial spaces where constant and efficient refrigeration or freezing is needed. Food or chemical storage means extended temperature control for perishable or unstable materials, lowering degraded rates, and the assurance the items will remain in optimal condition. The FDA recommends that pharmaceutical products should be kept in a suitable temperature, humidity, and light environment and be labeled as identifying and retaining their purity.

The way a cold room works is like a domestic refrigerator. You have an insulated box and a refrigeration system that extracts unwanted heat from the inside and expels it to the outside. It is controlled by a thermostat that turns on when the temperature inside the insulated box is too high and turns off when it is the correct temperature.

The main components are the insulated panels that make up the room complete with a door. The refrigeration system is normally made up of a condensing unit which houses the compressor, condenser, receiver, and associated electrics that is located outside the cold room and then the evaporator, which is placed inside the cold room along with the expansion device to remove the heat from within the cold room. The whole system is then controlled by a thermostat to start and stop the refrigeration system, so the correct temperature is maintained within the cold room.

Easily select your cold room refrigeration components with Coolselector® 2

There are many different applications which range from farm to fork in the whole food chain such as removing field heat from produce in agricultural areas, food factories, food distribution, supermarkets, convenience stores, commercial kitchens, fast food. Other notable areas include pharmaceutical, floristry, mortuary, and production process.

There is no one specific answer due to the many varied requirements and different product types that require cooling.


a. High Temperature Cold Room – an example could be to remove field heat from food produce such as tomatoes with a room temperature at approximately 12 °C

b. Walk-in Cold Room – an example could be a cold room in the back room of a commercial kitchen to store fresh food stuff with a room temperature of approximately 2 to 5 °C

c. Walk-In Freezer Room – an example could be a freezer room in the back room of a supermarket to store frozen food stuff with a room temperature at approximately -18 °C, or for longer term storage the temperature can be as low as -28 °C.

It is important to ensure the cold room structure and the refrigeration equipment has periodic maintenance, because when they are being used regularly, there are many different things that can go wrong or deteriorate over time.

For instance, the fabric of the cold room structure gets a lot of use, opening and closing of the door etc.

The refrigeration system components such as the condenser can get blocked with debris, the fins of the evaporator can get blocked with ice, the mechanical components such as fan motors, defrost heaters or compressor can fail, or the performance can deteriorate. The initial symptom of a failure would be that the cold room is not maintaining the correct storage temperature.

There are many ways to ensure the cold room is running as energy efficiently as possible, these include:

  • The cold room structure is airtight, and the door closes properly
  • Minimize the periods the door is open
  • Use an air-curtain over the door opening to stop heat exchange and warm air / moisture entering the cold room
  • Optimize the control settings to ensure the refrigeration system is operating correctly
  • Keep the condenser clean / free from debris to ensure good airflow
  • Ensure the evaporator airflow is not obstructed with products in the cold room
  • Correct thermostat set point for the products stored

Yes, the floor should be insulated and have a heater mat or other systems to ensure the negative temperature in a freezer cold room does not freeze the natural moisture present in the sub floor foundations. Otherwise, the floor of the cold room could crack and become unstable. The effects of this are known as frost heave and can be severe.

Contact us

For further information, please contact us.