The GUNT Secondary Controller Trainer demonstrates the operation and adjustment of secondary controllers used to optimize large refrigeration systems by managing pressures such as evaporation, compressor intake and delivery, condensation, and receiver pressures. Trainees can disable controllers to simulate faults and study their effects on system performance using manometers, a manual thermometer, solenoid valve-controlled evaporators, and an adjustable electrical heater to vary cooling load.
Product Features
- So-called secondary controllers are used to ensure the optimum operation of large, complex refrigeration systems. They control the evaporation pressure (KVP), the intake pressure of the compressor (KVL), the delivery capacity of the compressor (KVC), the condensation pressure (WVFX, KVR) and the receiver pressure (KVD, NRD).
- With this trainer the student can try out the operation of the different secondary controllers. The secondary controllers can be disabled as required by bypassing or blocking. This option can be used for fault finding.
- By adjusting the secondary controllers the effect on the overall system can be studied.
- Manometers at all important locations and a manual thermometer enable the monitoring of the system state.
- The two evaporators for the cooling and freezing stage can be selected via solenoid valves.
- With an adjustable electrical heater in the refrigeration chamber the effect of a changing cooling load on the secondary controllers can be examined.
Benefits
- Hands-on training for understanding secondary controller function and impact on refrigeration systems
- Enables practical fault diagnosis by disabling controllers
- Realistic simulation of large system operation and pressure management
- Supports education in system optimization and troubleshooting
Why Choose the GUNT Secondary Controller Trainer?
The GUNT Secondary Controller Trainer is an essential educational tool for HVAC and refrigeration students, offering realistic simulation of complex control systems. It helps build skills in system optimization, fault diagnosis, and performance monitoring for advanced refrigeration applications.
