Commercial/Industrial refrigeration unit

Multi-compressor system supplying several refrigeration units

Features:

Refrigeration unit (dual-compressor refrigerating group using R449A, suction accumulator, oil separator, fluid reservoir, filter dryer, etc.)

Condenser (air-cooled) and evaporator (air-cooled)

Refrigeration applications (cold room, display case, ambient air volume)

Expansion valves (thermostatic, electronic) and evaporation pressure control valves

Control (PLC for the refrigeration unit, controllers for display cases, cold rooms and room temperature)

Sensors (pressure, temperature)

Communicationand supervision

Fluidic and electrical circuits and their equipment

Hydraulic circuit components(hot water production by heat recovery)

Training activities:

Introduction to refrigeration units

Electrotechnicalmeasurements

Hands-on training with refrigeration components

Refrigeration measurements and enthalpy chart design

Refrigeration and electrical troubleshooting and maintenance

Commissioning & configuration

Energy balance and computation of performance ratios

Key points:

Real-life situations and actual sizing (e.g., Mini-market refrigeration unit with cold room, refrigerated display case and ambient cooling)

Resistance for simulation of temperature variations in the cold room

More display cases, cold rooms and “free” evaporators may be added

Hot water production by energy recovery (option)

References:

CF10: Dual-compressor Inverter refrigeration unit with remote air cooled condenser and helical fan

CF12: Display case with thermostatic expansion valve

CF13: Negative cold room with thermostatic and electronic expansion valves, and ambiente vaporator with thermostatic expansion valve

CF15: Heat recovery unit producing hot water

PC22:4 channel thermometer with PC acquisition and display (delivered with 8 thermocouple probes and PC acquisition software)