Beyond physical installation, the system requires software configuration for optimal performance.

Install the unit away from bedrooms or neighboring windows to minimize noise disruption.

While the unit comes pre-charged with refrigerant, additional refrigerant may be required if the total length of the connecting pipes exceeds the standard limit.

Measure the temperature delta (difference) between the return air and supply air on each indoor unit; it should be at least 8°C–12°C in cooling mode.

25 meters from the outdoor unit to any single indoor unit.

Fix wall mounting plate:

Additional Charge (g)=(Total Liquid Pipe Length−Factory Precharged Length)×20g/mAdditional Charge (g) equals open paren Total Liquid Pipe Length minus Factory Precharged Length close paren cross 20 g/m

Press the button once (or press and hold depending on the specific firmware version; look for the red LED segment display to read an auto-test code like K1 ).

Proper installation is critical to ensure efficiency, longevity, and safety. This guide outlines the essential steps and safety protocols found in the official . ⚠️ Safety Precautions & Requirements

| Error Code | Description / Possible Issue | | :--- | :--- | | | Duplicate address setting, where two or more devices have the same network address | | E190 | Pipe check error | | E199 | Pipe check operation has not been completed | | E201-203 | Communication errors between indoor and outdoor units | | E221, E237, E251 | Sensor issues (short or open circuit) for ambient, condenser, or discharge temperature | | E401 | Outdoor unit freezing safety control has stopped the compressor | | E404 | Outdoor unit overload safety control has stopped the compressor |

The AJ068TXJ3KG/EU features three dedicated pairs of liquid and gas service valves. Proper pipe sizing and meticulous flare connections are crucial to avoiding performance drops or refrigerant leaks. Pipe Length and Elevation Limits

Hold the pipe downward and completely remove all copper burrs to prevent debris from entering the cycle.

The installation must be performed by a qualified professional to ensure safety and maintain the product warranty. Location Choice