Capacity Control In Refrigeration Systems

Capacity Control In Refrigeration Systems

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Product Description

Capacity Control In Refrigeration Systems

Specification of Capacity Control In Refrigeration Systems

  1. Methods for capacity control in refrigeration systems
  2. Refrigeration circuit with compressor, condenser and 2 evaporators in insulated refrigeration chambers
  3. Each refrigeration chamber with adjustable heater to generate a cooling load, thermostatic expansion valve and fan
  4. 1 refrigeration chamber with refrigeration controller for temperature control; solenoid valve, fan and defrost heater as actuators
  5. 1 refrigeration chamber with thermostat, solenoid valve and evaporation pressure controller for temperature control
  6. Compressor with variable speed via frequency converter
  7. Capacity controller in the compressor bypass

Technical Data

Compressor

  1. Refrigeration capacity: approx. 560w at -5/25°c and 1450min-1
  2. Drive motor: 550w
  3. 2 heaters: approx. 500w
  4. 4 fans: max. Volumetric air flow rate: approx. 36,5m³/h
  5. 1 defrost heater: approx. 75w

Refrigeration Controller

  1. 3 inputs
  2. 3 outputs
  3. Evaporation pressure controller: 0...5,5bar
  4. Thermostat: -5...20°C
  5. Capacity controller: 0,2...6bar

Measuring Ranges

 

  1. Compressor speed: 465...975min-1
  2. Temperature: 3x -60...50°c
  3. Heater power: 2x 0...1000w
  4. Pressure: 3x -1...9bar; 1x -1...24bar

 


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