Ensure you use the correct pipe diameters for the multiple indoor units connected (usually 14one-fourth 38three-eighths 12one-half " depending on capacity).
Charge the system with nitrogen gas to test for leaks at the flare joints.
The Samsung AJ068TXJ3KG/EU utilizes R32, a high-pressure, mildly flammable (A2L) refrigerant. Clean, precise piping practices are mandatory. Step 1: Cutting and Deburring
Use an R32-rated eccentric flaring tool to form clean, smooth flares free of cracks, scoring, or uneven edges. Step 3: Torque Specifications samsung aj068txj3kg eu installation manual
: Connecting main power, communication cables, and controllers.
: Use a professional pipe cutter to trim copper tubing to length. Ensure the cut is perfectly square (90°) and remove all burrs using a reamer, pointing the pipe downward to prevent copper shavings from falling inside.
Connect a manifold gauge set to the service ports of the gas valves. Ensure you use the correct pipe diameters for
Switch the system into Test Run mode via the outdoor unit PCB buttons or the indoor controller. Verify that both cooling and heating cycles function correctly, and check that indoor fan speeds adapt properly.
Use a 2-core shielded cable for communication. Do not run signal wires in the same conduit as power wires – induces noise.
The AJ068TXJ3KG/EU must map its electronic expansion valves (EEVs) to the corresponding indoor units. This is done via the outdoor unit’s main PCB display. Clean, precise piping practices are mandatory
Mistaking power for communication lines destroys the PCB.
If you have lost the printed manual, do not attempt installation from memory. Follow these steps to obtain the authentic PDF: