Item.5 DL-ZLAC05 General Air Conditioning Trainer Technical Document
I. Equipment Overview
This training device is built around an aluminum profile frame, which includes a screen-printed panel for component installation and a profile base plate for easy assembly. The equipment base frame is equipped with casters featuring braking locks. Each system is fully installed with piping and electrical connections, ready for immediate operation. The layout of components is clear and labeled for easy identification. A refrigeration schematic diagram and circuit schematic diagram are provided for instructional purposes. The refrigeration pipelines are color-coded in red and blue, with red representing high pressure and blue representing low pressure, to indicate the state of the refrigerant. A sight glass is also included to monitor the state of the refrigerant at that location.
Refrigerant: R134aor equivalent.
(1) Familiarity with the structure, principles, installation, and use of common low-voltage electrical appliances;
(2) Understanding the use of graphical and textual symbols in circuit diagrams, and the ability to layout circuits based on physical components;
(3) Mastering the ability to independently complete circuit testing and debugging using the professional knowledge acquired from textbooks.
Components and systems include:
(1) Humidification unit, heating unit, cooler, and dehumidification unit. Sight glass, high and low pressure vacuum gauges, high and low pressure controllers;
(2) Instrument control panel, equipped with voltmeter, ammeter, on/off controls, circuit breaker with leakage protection device, overload protection device, key start switch, operation indicator light, four temperature displays, controller, and fan speed regulator. All necessary controls and wiring are included. All parts are labeled, displaying the refrigeration circuit text and graphical schematic diagram.
(3) RS485 data acquisition system: Enables interaction between the computer and the refrigeration system. Data is transmitted to the computer via the RS485 data acquisition serial port, including values such as voltage, current, phase angle, frequency, power, high and low pressure, time, etc. The system schematic diagram is also included, and data can be printed via the computer terminal.
II. Technical Parameters
Power supply: Single-phase 220V ±10%, 50Hz, 16A;
Workbench dimensions (mm): 1500 (L) × 750 (W) × 1650 (H);
Workbench body: Movable steel structure, equipped with four casters (two with brakes, two without brakes).
RFID Power Management System (Supporting documentation for operational aspects will be provided item by item as required):
Utilizes high-frequency RFID operating at 13.56MHz, enabling power management control for the entire device via card swiping through RS485 communication from the RFID module, accompanied by corresponding audible prompts and LED indicator lights.
III. Experiment Items
1. Identify and study all components used in the air conditioning system.
2. Investigate the state of the refrigerant in the compression refrigeration cycle.
3. Study the processes of heating, cooling, humidification, and dehumidification.
4. Determine refrigeration effect, work input, actual cycle power, theoretical cycle power, relative cycle power, refrigeration capacity, and equipment efficiency.
5. Collect data from the refrigeration system via computer.
