YALONG details its smart refrigeration trainer for HVAC education

Yalong Intelligent Equipment Group says its YL-83B refrigeration and air conditioning trainer is built for hands-on HVAC/R instruction in technical colleges and universities. The company says the platform combines thermodynamic visualization, fault simulation, and competition-ready teaching materials for WorldSkills-aligned training.

Why it matters: - YALONG is pitching the YL-83B as a practical training platform for HVAC/R education, where students need to see refrigerant behavior, pressure changes, and fault conditions in a real system. - The company says the trainer is designed to support technical colleges, universities, and competition training hubs worldwide. - The system is framed as a bridge between classroom theory and industrial troubleshooting skills.

What happened: - Yalong Intelligent Equipment Group Co., Ltd. detailed its YL-83B intelligent refrigeration and air conditioning trainer in Wenzhou, Zhejiang, China. - The company says the platform holds national utility patent 202022527712.2. - YALONG also says the trainer serves as the official platform for the National Machinery Industry WorldSkills Refrigeration Selection. - The company says the product is aimed at engineering education in heating, ventilation, air conditioning, and commercial refrigeration.

The details: - The YL-83B uses a fully hermetic reciprocating compressor to demonstrate the vapor-compression refrigeration cycle. - The trainer includes dual condensing circuits: an air-cooled finned-tube condenser with an axial fan and a water-cooled shell-and-tube heat exchanger with a circulating cooling-water loop. - Students can switch between air-cooled and water-cooled modes with manual isolation ball valves. - The platform measures refrigerant inlet and outlet temperatures, subcooling, and heat-transfer differences across operating modes. - A replaceable liquid line filter-drier removes residual moisture and particulate matter. - An optical sight glass with a moisture indicator lets students observe the refrigerant phase change in real time. - The circuit includes two throttling paths: a fixed-orifice capillary tube and an adjustable thermostatic expansion valve with external pressure equalization. - The system supports analysis of throttling temperature drops, flashing, and expansion-valve superheat control using digital pressure gauges. - The evaporator is an exposed finned-tube air-cooling unit with transparent airflow ducting and an adjustable cross-flow blower. - Sensors and digital pressure transducers track evaporating temperature, saturation pressure, and superheat. - The trainer also supports copper pipe cutting, tube bending, flaring, swaging, and brazing practice. - The system includes nitrogen pressure-holding leak detection, vacuum evacuation, and refrigerant charging and recovery workflows. - Safety hardware includes dual-pressure switches, motor thermal protectors, phase-sequence relays, and residual current circuit breakers. - YALONG says the fault-simulation board can create compressor contactor coil open circuits, starting capacitor faults, pressure switch interlock trips, temperature sensor disconnects, and defrost timer bypasses. - Students can use multimeters and clamp meters to trace wiring diagrams and restore normal operation. - The package includes computer-based data acquisition software that maps experimental data onto real-time pressure-enthalpy charts and calculates refrigeration capacity, compressor power, and coefficient of performance. - YALONG says it provides bilingual project task workbooks, electrical schematics, standardized assessment rubrics, and instructor certification support aligned with WorldSkills refrigeration standards. - The company says it runs train-the-trainer workshops through corporate Academician and Post-Doctoral Research Workstations. - Factory specifications include a 1500 mm x 640 mm x 1850 mm aluminum frame, 100% factory pressure-retention testing, patented in-line sight glasses, and OEM compressor spare parts.

Between the lines: - YALONG is packaging the trainer as both lab equipment and a competition-prep tool, which could appeal to schools that want one platform for instruction, assessment, and skills contests. - The emphasis on transparent components, live measurements, and fault injection suggests the product is meant to make hidden refrigeration processes visible to students. - The mention of factory-direct procurement and no distributor markups positions the offering as a cost-and-support argument as much as a technical one.

What's next: - YALONG directs schools and training centers to its international portal for technical documentation, refrigeration piping schematics, and modular curriculum frameworks: More information. - The company also points customers to its social channels on Facebook and YouTube. - YALONG is likely to continue positioning the YL-83B around vocational education and WorldSkills-style refrigeration training.

The bottom line: - YALONG is marketing the YL-83B as a full-stack HVAC/R teaching system that combines hardware, software, and curriculum support in one package.