Central air conditioning/small cold storage electrical skills training and assessment device

1、 Product Overview
This equipment is designed based on textbooks such as "Installation, Operation, and Maintenance of Refrigeration and Air Conditioning Units", "Cold Storage Refrigeration Technology", and "Refrigeration and Air Conditioning Automation" in the fields of refrigeration and air conditioning application and maintenance. The equipment is equipped with cold storage automation electrical control system, air-cooled refrigeration unit, small cold storage, etc.
The equipment adopts a double-sided cabinet design, with one side for the central air conditioning electrical control system and the other side for the small cold storage electrical control system. According to the requirements of the central air conditioning and small cold storage electrical control circuits, control devices such as leakage switches, fuses, AC contactors, pressure controllers, solenoid valves, buttons, and indicator instruments are installed, and more than ten common faults of small cold storage systems are set. Suitable for teaching and practical training in central air conditioning and small cold storage system control circuit operation, fault demonstration, and troubleshooting in vocational colleges, technical schools, and other refrigeration majors.
2、 Technical parameters:
(1) Input power supply: three-phase four wire (or three-phase five wire)~380V ± 10% 50Hz; working environment: temperature -10 ℃~+40 ℃, relative humidity<85% (25 ℃), altitude<4000m; device capacity:<1.5kVA; Outline reference dimensions: 700 × 600 × 1700mm;
(2) AC power supply: Provides three-phase AC power supply, which can be controlled by the main power switch. Equipped with a pointer type AC voltmeter, it can indicate the input grid voltage value through a switch.
(3) Safety protection system: equipped with voltage type leakage protection, current type leakage protection, overcurrent protection, overload protection, and grounding protection, which can effectively protect personnel and equipment.
(4) Pointer voltmeter: range 0-450V; vacuum pressure gauge: range -0.1-1.5MPa; Vacuum pressure gauge: range -0.1~3.5MPa; Digital thermometer: using PT100 sensor, measuring range -50~150 ℃;