The Refrigeration Trainer is an educational unit that enables the practical study of basic refrigeration principles. It features a complete refrigeration circuit with a compressor, condenser, expansion valve, and evaporator. Students can analyze pressure, temperature, and performance parameters to understand system operation. Ideal for engineering colleges, polytechnic institutes, and ITIs, it provides hands-on exposure to cooling system behavior and energy efficiency concepts. The trainer’s robust design and accurate instrumentation make it perfect for repeated use in academic HVAC and refrigeration laboratories, promoting skill-based technical learning.