How to Assemble Air Conditioner｜Semi-Auto Production Solution

1. Prepare Tools and Components

2. Assemble the Indoor Unit

• Mount the indoor unit on a wall or ceiling using brackets, ensuring stability.
• Install internal components: secure the evaporator coil, connect the fan motor to the control board, and attach the air filter and front panel.

3. Assemble the Outdoor Unit

• Place the outdoor unit on a level surface (concrete pad or bracket).
• Secure core components: mount the compressor, condenser coil, and fan motor in the cabinet. Connect refrigerant lines to the compressor and condenser.

4. Connect Refrigerant Lines

• Cut and flare copper pipes to connect the indoor and outdoor units (liquid and suction lines).
• Insulate the suction line to prevent condensation.
• Use flaring tools to ensure airtight connections, critical for refrigerant efficiency.

5. Electrical Wiring

• Connect power cables, control wires, and sensors between the indoor and outdoor units, following the wiring diagram.
• Ensure proper grounding to meet safety standards .

6. Leak Detection

• Pressurize the refrigerant lines with high-pressure nitrogen to check for leaks.
• Apply soapy water to joints; bubbles indicate leaks, which must be repaired before proceeding.

7. Evacuate Air and Moisture

• Use a vacuum pump to evacuate air, moisture, and contaminants from the lines. Ensure the system reaches a vacuum level of ≤10Pa.

8. Charge Refrigerant

• Charge the system with the specified refrigerant (e.g., R32, R410A) using a refrigerant charging machine (Dongliu offers both standard and explosion-proof models for flammable refrigerants like R32/R290).
• Follow precise charging amounts based on the unit’s specifications.

9. Test Operation

• Power on the unit and test cooling/heating functions, fan speed, and controls.
• Use performance test systems (such as Dongliu’s Air Conditioner Performance Test System) to verify parameters like temperature difference, pressure, and power consumption.

Safety Notes:

• For flammable refrigerants (R32, R290), use explosion-proof equipment and ensure ventilation (refer to Dongliu’s Leakage Alarm Detection System for safety monitoring).
• Adhere to local electrical and refrigerant handling standards.