Samsung Aj068txj3kg Eu Installation Manual -

Samsung AJ068TXJ3KG EU — Installation manual deep guide

4. Electrical Installation Essentials

Isolation and protection: Dedicated circuit with proper overcurrent protection (breaker/fuse) and residual current device (RCD) where required; lock-off and isolate before work.
Earthing/grounding: A reliable earth connection consistent with local code; verify continuity and bonding.
Supply rating and cable sizing: Follow manual’s specified voltage, phase (single/three), and current rating; size conductors for continuous load and voltage drop.
Control wiring: Low-voltage controls must be segregated or screened as recommended; route away from power cables to minimize interference.
Commissioning checks: Verify correct voltage, phasing (if three-phase), rotation, and that all protective devices are in place and labelled.

Q1: Can I install the AJ068TXJ3KG/EU indoors?

A: No. The manual states IPX4 rating (splashproof), but ventilation requirements demand outdoor installation only.

10. Final Checklist

| Check item | OK | |------------|----| | Unit is level and securely fixed | ☐ | | Piping size & flare connections correct | ☐ | | Insulation installed on both gas & liquid lines | ☐ | | Electrical connections tight and to torque spec | ☐ | | Drain nipple and hose attached | ☐ | | No refrigerant leaks detected | ☐ | | Power supply matches rating plate | ☐ | | Communication cable polarity correct (if applicable) | ☐ | samsung aj068txj3kg eu installation manual

2.3 Electrical Requirements

Power supply: 220-240V ~ 50Hz (single phase) – confirmed for /EU models.
Dedicated circuit with proper earth (ground) leakage breaker (30mA).
Minimum wire gauge: 2.5mm² for power, 1.5mm² for communication.

6. Refrigerant Piping Work

Connect pipes to the service valves (Liquid: Ø6.35 mm, Gas: Ø15.88 mm).
Use only C1220T copper pipes with insulation.
Apply ester oil or ether oil to flare connections.
Tighten flare nuts with torque wrench:
- 6.35 mm: 14–18 N·m
- 15.88 mm: 63–77 N·m
Perform nitrogen gas leak test (4.0 MPa max).
Evacuate system to below –100.7 kPa (5 Pa absolute) for at least 2 hours.

Step 2: Mounting the Outdoor Unit

Wall bracket: Use M10 anchor bolts. Bracket must support 70kg static weight.
Concrete pad: Use anti-vibration pads (provided) to reduce resonance.
Clearances (from manual):
- Rear: ≥ 150mm
- Left/Right: ≥ 250mm for service access
- Front (fan side): ≥ 600mm

Step 5 – DIP Switch & Address Setting (EU Specific)

Samsung EU units require addressing when multiple indoor units connect to one outdoor. Samsung AJ068TXJ3KG EU — Installation manual deep guide

SW01 (Master/Slave): Set only one indoor as master if using central controller.
SW02 (K2/Resistor): Turn ON termination resistor at the last unit on the communication bus (120Ω).
Auto addressing: After power-up, press the outdoor PCB’s K4 button for 3 seconds – the system will assign addresses automatically (confirmed by blinking LED 3 times).

Part 4: Common Installation Errors (From Samsung’s Troubleshooting)

Even with the manual, installers often make mistakes on the AJ068TXJ3KG/EU. Q1: Can I install the AJ068TXJ3KG/EU indoors

| Error | Consequence | Solution | |-------|-------------|----------| | Flare nut cross-threaded | Refrigerant leak within weeks | Cut and re-flare, use torque wrench | | Communication wire reversed (F1/F2 swapped) | E838 error – no communication | Swap wires at outdoor terminal | | No nitrogen flow during brazing | Copper oxide contamination | Replace filter drier, evac system | | Vacuum only 5 minutes | Non-condensables freeze in EEV | Vacuum minimum 60 minutes | | Ground wire missing | Electric shock risk | Mandatory earth connection |