Multi Ejector Solution™

  • Overview
  • Product range
  • Documents
  • Software
  • Support
  • Case studies

Discover why "We Love CO₂"

Yes, you heard it right. At Danfoss Cooling, We Love CO₂.

You might think that our devotion is misguided, but we can promise you that our affections are grounded in facts and modern engineering innovations. You see, despite its reputation as a pollutant, CO₂ is actually one of the most sustainable refrigerants. Unfortunately, it hasn't been possible to apply transcritical CO₂ systems in all climates – until now. Watch the video to find out why.

Complete Multi Ejector portfolio for all store sizes, CO₂ systems and climates

Danfoss offers a full range of Multi Ejectors – covering the needs for all store sizes, CO₂ systems and climates.

Multi Ejector - High pressure:

The High Pressure Ejector utilizes the energy in the high pressure gas to lift gas from the suction side (MT) moving it to the parallel compressors (IT). This provides a reduction in needed compressor capacity and energy consumption.

  • For CO₂ refrigeration systems with parallel compression
  • The best solution for warm climates
  • Optimum for system sizing from 150 kW and up

Multi Ejector - Low Pressure:

The Low Pressure Ejector recovers energy, otherwise lost in expansion, to lift the suction pressure. This reduces the consumption of the compressors.

  • For CO₂ booster systems
  • The best solution for warm climates
  • Optimum for system sizing from 40-150 kW

Multi Ejector – Liquid Ejector:

The Liquid Ejector utilizes the energy in the high pressure gas to lift liquid from the suction accumulator. It works in combination with CO₂ Adaptive Liquid Management ensuring full evaporator optimization resulting in reduced energy consumption.

  • For both CO₂ booster systems and systems with parallel compression
  • Efficient in both warm and cold climates
  • Optimum for system sizing from 40-450 kW

Multi Ejector – Combi HP/LE:

The Combi HP/LE combines benefit of the High Pressure Ejector and the Liquid Ejector, and giving you a complete solution with only one welding point needed during installation – making it even easier to get the benefits of CO₂.

  • For CO₂ refrigeration systems with parallel compression
  • The best solution for warm climates
  • Optimum for system sizing from (40 to 105 kW)

Multi Ejector Solution – now with an extended family

The Multi Ejector family have recently been extended with 6 new types making it even easier to find a perfect fit for every store and system around the world.

The Danfoss family of Multi Ejectors now consist of the following members:

  • High Pressure – 3 types (150 kW and up)
  • Low Pressure – 2 types (40-150 kW)
  • Liquid Ejector – 5 types (40- 450 kW)
  • Combi HP/LE – 3 types (40 to 105 kW)
Danfoss CO₂ Adaptive Liquid Management

CO₂ Adaptive Liquid Management

The new CO2 Adaptive Liquid Management (CALM) solution from Danfoss extends the portfolio of solutions for CO2 refrigeration in food retail applications. CALM includes the ground-breaking new Liquid Ejector in combination with the innovative case controller algorithm – Adaptive Liquid Control (ALC) – ensuring optimum liquid management. With CALM, the Danfoss CO2 portfolio offers solutions for all system types, store sizes and climates.

Product range

  • Danfoss CTM Multi Ejector Solution
    CTM Multi Ejector Solution

    The Danfoss Multi Ejector Solution™ ensures that transcritical CO₂ applications for retailers become energy efficient in any climate.

  • Danfoss AK-CC 550A case controller fod food retail applications
    AK-CC 550A

    AK-CC 550A is a flexible case/room controller. AK-CC 550A features energy optimization of the complete case and predefined application types for quick adaptation to different cases or cold room setups.

  • AK-PC 782A capacity controller Danfoss
    AK-PC 782A capacity controller

    AK-PC 782A is complete regulating units for capacity control of compressors and condensers in a transcritical CO2 booster system with parallel compressor.

  • AK-SM 850 system manager - Danfoss
    AK-SM 850 system manager

    The Danfoss AK-System Manager (AK-SM) is a modern solution for the food retail markets. The AK-SM uses the latest technology to provide the maximum benefit to the end user, both in terms of energy saving optimization, control options and user friendly access.

Infographic - How to choose the right Multi Ejector Solution™

How to choose the right Multi Ejector Solution™

3 main factors to consider when designing your transcritical CO2 system with a Multi Ejector Solution™.

Documents

Type Name Language Valid for Updated Download File type
Brochure Save energy and protect the environment with CO2 solutions - Special version for Food Retail French Multiple 02 Jul, 2018 3.3 MB .pdf
Brochure Save energy and protect the environment with CO2 solutions - Special version for Food Retail English Multiple 3.3 MB .pdf

Software

Coolselector®2

Coolselector®2: We did complex — you do awesome

Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user's requirements or based on standard operating conditions.

 

Support

Case studies

  • The Danfoss Multi Ejector range for CO2 refrigeration: design, applications and benefits
    The Danfoss Multi Ejector range for CO₂ refrigeration: design, applications and benefits

    Danfoss offers a complete portfolio of gas and liquid ejectors that provide significant benefits in CO2 refrigeration applications. Here we take a closer look at these offerings: the Multi Ejector Low Pressure (LP), the Multi Ejector High Pressure (HP), and the Liquid Ejector (LE). All three ejector products are only available as a complete Multi Ejector Solution™ where the ejector is bundled with the AK-PC 782A pack controller to provide the robust system controls necessary for efficient and reliable operation.

  • Evaporator injection algorithm
    Selecting the right evaporator injection algorithm makes a world of difference

    Danfoss has pioneered two control algorithms that help you achieve this balance. The Minimum Stable Superheat (MSS) algorithm has been an important part of the Danfoss ADAP-KOOL® offering for years and is still the ideal choice for adaptive evaporator control for dry expansion. Now Danfoss introduces the next generation: Adaptive Liquid Control (ALC).

  • Intelligent and adaptive control in transcritical CO₂ refrigeration
    Intelligent and adaptive control in transcritical CO₂ refrigeration

    Intelligent control solutions are important for achieving reliable, optimized operation and realizing financial savings and environmental benefits in your transcritical CO2 refrigeration solution.