Dual-Application Commercial Refrigeration Training Unit Manufacturer,Supplier and Exporter in India
Product Code : EL-TWL-13136
Jlab Export is a leading Dual-Application Commercial Refrigeration Training Unit Manufacturer,and suppliers in India
One semi-hermetic compressor feeds two evaporators on this freestanding commercial trainer. One coil handles low temperature work, as in a freezer, and the other medium temperature work, as in a chilled cabinet. Students run either or both, study electric defrost and see how an evaporator regulator stops the warmer coil falling to the colder coil’s pressure.
Specifications
| Compressor | 1/2 HP semi-hermetic, single phase |
| Refrigerant | R-134a |
| Power supply | 220–240 V, 50 Hz |
| Evaporators | Low temperature and medium temperature, with adjustable speed fans |
| Condenser | With adjustable speed fan |
| Defrost | Electric defrost cycle with defrost timer |
| Controls | Electronic temperature control, evaporator regulator valve, low and high pressure controls |
| Fault simulation | Electrical fault package, hand valves to simulate malfunctions |
| Instruments | Refrigerant flow meters |
| Build and supply | Self-contained freestanding unit with storage space, lab manual, operation instructions, manifold service kit |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Commercial Refrigeration Practicals
A first session runs the medium temperature coil alone, then the low temperature coil, then both. Students read suction and discharge pressures with the manifold service kit and set the evaporator regulator valve. From the refrigerant flow meters and the pressures they plot each case on a p-h chart. They then compare the cooling effect and coefficient of performance at the two temperatures.
For defrost practice, students set the defrost timer, follow the electric heaters through a cycle and time how long the coil takes to clear and pull down again. A Temperature and Humidity Data Logger placed at the low temperature coil records the air temperature through the cycle. Fault sessions use the electrical fault package and the hand valves. Students check fan and compressor currents with a Digital Clamp Meter and decide which component is at fault.
Frequently Asked Questions
What do low and medium temperature applications mean?
Low temperature work covers frozen storage, with the coil well below freezing. Medium temperature work covers chilled food and drinks kept just above freezing. This unit runs both kinds of evaporator from one compressor.
What does the evaporator regulator valve do?
In a two-temperature system it sits at the outlet of the warmer evaporator and holds that coil above the suction pressure set by the colder one. The medium temperature coil then stays at its own temperature instead of over-cooling its load.
How does the electric defrost work?
At set intervals the defrost timer stops refrigeration and switches on heaters at the evaporator to melt the frost. When the set time ends, cooling restarts and the coil returns to normal running.
Why is a semi-hermetic compressor used?
Its bolted body can be opened to service valves, pistons and bearings, as is common in commercial plant. This one is a 1/2 HP single phase compressor, so the trainer runs on a 220–240 V, 50 Hz supply.
Which faults can be simulated?
Electrical faults come from the built-in fault package, and refrigerant-side malfunctions are set with hand valves. Students use the flow meters, service gauges and temperature control readings to find each fault.
Other Trainers and Regulator Displays
- Industrial Refrigeration Training Unit
- Cold Storage Test Rig
- Six Piece Sectioned Regulator Set For Demonstration
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Last updated: 6 November 2026
