AZM7146 Capacity Control Methods in Refrigeration Vocational Training Equipment Refrigeration Laboratory Equipment
Mobile system for capacity control in refrigeration engineering
2 insulated cooling chambers with electric heater and evaporator with 2 fans
Chamber 1 with mechanical temperature control (intake pressure controller + thermostat), chamber 2 with electronic temperature control (case controller)
1 evaporator with additional defrosting heater
Compressor with adjustable speed, drive motor controlled via frequency converter
Refrigerant AR134a, CFC-free
Condensing unit: refrigerating capacity: 560W at -5/25°C,
drive motor: 550W Cooling chamber: heater: 500W,
evaporator with 2 fans: capacity: 78W at 5°C/ΔT=7K, heat exchanger surface area: 1.12m²,
Max. airflow rate: 2x 50m³/h
Defrosting heater: 75W
Intake pressure controller: 0…5.5bar
Capacity controller: 0.2…6bar
Case controller: 7 inputs, 7 outputs
Measuring ranges: temperature: -60…50°C, power: 0…10kW, pressure: -1…9bar / -1…24bar
