CONTINUOUS MODULATION for transcritical CO2 systems

 

 

CONTINUOUS MODULATION
for transcritical CO2 systems

Continuous modulation represents the cutting edge of CAREL’s solutions. Through this, maximum efficiency can always be achieved in all operating conditions, and now also in transcritical CO2 booster systems.

Continuous modulation represents the cutting edge of CAREL’s solutions. Through this, maximum efficiency can always be achieved in all operating conditions, and now also in transcritical CO2 booster systems.

  • Natural refrigerant (CO2)
  • Ideal for small and medium formats 
  • High energy efficiency and perfect food preservation thanks to the widest range of modulation on the market 
  • Compact, light and low-noise unit 
  • Total connectivity 

 

 

pR Multi DC booster pack CO2

pR multi DC booster pack CO2

The CO2 booster system with CAREL DC modulating compressors is the integrated solution that brings energy savings and environmental benefits through the use of CO2 with continuous modulation, for small and medium store formats.

Continuous modulation
Ensures higher efficiency in all operating conditions, across a wide range of operation from 5-100%.

Ideal solution for retrofits
fast installation both inside and outside the supermarket.

Maximum usability and reliability
thanks to complete management of the compressor envelope and oil distribution.
Download the brochure

pR Multi DC booster pack CO2

The CO2 booster system with Carel DC modulating compressors is the integrated solution that brings energy savings and environmental benefits through the use of CO2 with continuous modulation, for small and medium store formats.

Continuous modulation
Ensures higher efficiency in all operating conditions, across a wide range of operation from 5-100%.

Ideal solution for retrofits
fast installation both inside and outside the supermarket.

 Maximum usability and reliability
thanks to complete management of the compressor envelope and oil distribution.
Download the brochure

MultiDC Envelope

 
 
  • Energy savings up to 20%
    (peak efficiency compared to traditional technology)
  • Wider system modularity: up to 35 kW MT and 10 kW LT
  • Up to 4 medium temperature compressors
  • Up to 2 low temperature compressor
  • Energy savings up to 20%
    (peak efficiency compared to traditional technology)
  • Wider system modularity: up to 35 kW MT and 10 kW LT
  • Up to 4 medium temperature compressors
  • Up to 2 low temperature compressor

MultiDC Oil Control System

Patented oil control system

multiDC features an innovative oil management system, a crucial element for an efficient and reliable system. By periodically opening special electronic expansion valves, the controller checks for oil in the compressor using a dedicated software algorithm:

a drop in temperature between valve inlet and outlet due to refrigerant expansion indicates a shortage of oil in the compressor;

a constant temperature between the valve inlet and outlet signifies oil flow and therefore correct compressor lubrication.

Furthermore, the same logic can be applied to balance the oil level in all active compressors in the line. If this is not sufficient to supply any compressors with a shortage, oil will be injected from the reserve into the suction line.

multiDC features an innovative oil management system, a crucial element for an efficient and reliable system. By periodically opening special electronic expansion valves, the controller checks for oil in the compressor using a dedicated software algorithm:

a drop in temperature between valve inlet and outlet due to refrigerant expansion indicates a shortage of oil in the compressor;

a constant temperature between the valve inlet and outlet signifies oil flow and therefore correct compressor lubrication.

Furthermore, the same logic can be applied to balance the oil level in all active compressors in the line. If this is not sufficient to supply any compressors with a shortage, oil will be injected from the reserve into the suction line.

MultiDC System components

MultiDC System components

pRack controller

  • Management of transcritical unit
  • Intuitive user interface
  • Fast commissioning procedures

pR multi DC

  • Control of compressor envelope
  • Communication with CAREL inverter
  • Integrated safety features and alarms

Electronic expansion valves

  • Precise regulation of gas cooler and liquid receiver pressures
  • Compressor oil level check

R744 DC Inverter Rotary compressor

  • State-of-the-art CO2 rotary compressor
  • Manufactured exclusively for CAREL Industries

 

pRack controller

  • Management of transcritical unit
  • Intuitive user interface
  • Fast commissioning procedures

pR multi DC

  • Control of compressor envelope
  • Communication with CAREL inverter
  • Integrated safety features and alarms

Electronic expansion valves

  • Precise regulation of gas cooler and liquid receiver pressures
  • Compressor oil level check

R744 DC Inverter Rotary compressor

  • State-of-the-art CO2 rotary compressor
  • Manufactured exclusively for CAREL Industries

MultiDC - A centralised and integrated system

A centralised and integrated system...

The integrated solution comprising pRack controller, the new pR multi DC and boss supervisor, provides:

  • Control of the system using the supervisor via smartphone, tablet and PC
  • Constant performance monitoring and periodical reports for each unit
  • Benchmarks, dashboards and business intelligence tools within connected installations

The integrated solution comprising the pRack controller, the new pR network manager and the boss supervisor ensures:

  • Control of the system using the supervisor via smartphone, tablet and PC
  • Fast and autonomous synchronisation of all cabinet parameters so as to set the best energy saving configuration
  • Constant performance monitoring and periodical reports for each unit
  • Benchmarks, dashboards and business intelligence tools within connected installations

MultiDC - Advanced features

…with advanced features

 

Site management with the latest technologies available in the world, Internet of Things, with dashboard systems for immediate and simple management

 

READ MORE

 

Site management with the latest technologies available in the world, Internet of Things, with Dashboard systems for immediate and simple management

 

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