Universal 20cc/r Air Conditioner Compressor AC.100.3851 for 12V Auto Compressor for R134a

【Widely Used】

A/C 12 volt electric compressor unit AC.100.3851, suitable for AC air conditioning in automobiles, trucks, and buses.Refrigerant(R134a)

【Control External Design】

Electric compressor with separable controller for 12v,The air conditioner compressor separates the control panel from the main unit.

【High Quality】

The main body is made of high-strength aluminum material, which is durable, rigid, and wearable. It will not crack, break, or leak.

【Stable and Reliable】

The A/C compressor can provide sufficient pressure, which increases power force and decreases engine load. It dramatically improves the cooling function: and features stable efficiency, safety, and reliability.

【Buy with Confidence】

We provide 12 months return policy.Any quality problems, please contact us, we can replace new parts for you.

Specification:

• Rated Power: 600w
• Voltage: 12 Volts
• Maximum speed: 1900
• Control Type: 3 Gear
• Btu Value: 1700
• Refrigerant: R134a
• Refrigeration oil: POE oil RL68H/120ml
• Power Source: Corded Electric
• Housing material: aluminum alloy

Included Components:

• Universal AC Electric Compressor
• With Straight Fittings

The skill should be required

Wire harness.

1. All the wire numbers in the picture correspond to the terminal numbers in the sheath one by one.
2. The conductor conductance in the harness reaches 100%.
3. The conductor adopts oil-resistant, heat-resistant and flame-retardant thin-walled wire, which conforms to DIN 72551 standard.
4. Terminal crimping and wire connections should conform to QCn 29009 and QCn 29010.
5. The technical specifications of chip connectors and chip connectors for automobile meet the requirements of QC/T 417.1-417.5.
6. The basic dimensions are the dimensions between the end of the connector and the adjacent branch point, between the end of the connector and the adjacent fastener, between the branch point and the branch point, between the branch point and the fastener, and the tolerance conforms to 4.2.5 of Q/SQR.04.030.
7. The rest of the performance conforms to Q/SQR. 04.030
8 .The diameter of the harness bellows shall be based on the diameter of the harness bellows which can hold the wire completely and ensure that the diameter of the wire is not less than the inner diameter of the harness bellows.

Second, adhesive tape

1. Thermoplastic tape is used for insulation tape.
2. Its acid resistance and oil resistance are in accordance with Q/SQR.04.421.
3. Insulating cloth-based tape (including non-woven tape) is wound with automobile special “TESA” brand cloth-based tape, and its performance meets the requirements of TESA products.

Bellows

1. Bellows adopt flame retardant, oil-resistant and ultra-light bellows.
2. Technical compliance with Q/SQR.04.295.

IV.Printing marks

If it is an important part, it is necessary to mark the part mark “P", and the part mark shall be carried out according to the requirements of Q/SOR 04.057 and Q/SQR. 04.058.
All materials and components must meet the requirements of"EU DIRECTIVE 2003 Universe 53 BC".

Troubleshooting:

1. If the compressor shuts down within 20 seconds of startup, check if the power line is properly connected, if the fuse screws are properly tightened, and if there is oxidation at the battery terminals. Use sandpaper to clean and reconnect. A 20-second shutdown is generally a power issue, especially for units used over a year, where terminal corrosion may occur.

2. If the shutdown occurs after 2 to 3 minutes, it is generally due to high system pressure (e.g., overfilled refrigerant, system blockage, condenser dust accumulation causing poor heat dissipation, or electronic fan malfunction).

3. Test with power-saving or energy-saving modes, which use less current and typically avoid over current protection. If these modes function without issue, the controller and internal unit are likely fine, and other causes should be checked.

4. Three quick flashes, pause for one second: Locked rotor protection： Troubleshooting: Generally due to mechanical failure of the compressor or poor power connection causing insufficient current to the controller.

5. Four quick flashes, pause for one second: Under voltage protection： Troubleshooting:1. Check if the battery is genuinely under voltage and needs charging；2. If under voltage occurs at startup, check for poor power connections.

3. Adjust the panel under voltage value if the wiring is too long (controller under voltage value is 19.5V).

6. Six quick flashes, pause for one second: Electronic fan fault： Troubleshooting: Check if the electronic fan is working or if there is any disconnection or short circuit in the fan wiring.

7. Seven quick flashes, pause for one second: Motor phase loss: Troubleshooting: Check if the compressor motor is properly connected or burned out. 8. Eight quick flashes, pause for one second: Compressor temperature protection: Troubleshooting: Check if the compressor is overheating or if the temperature sensor is properly connected. Short-circuit the temperature sensor for testing.

9. Nine quick flashes, pause for one second: System pressure switch protection: Troubleshooting: Check if the system pressure is too high or directly short-circuit the pressure switch for testing.