The indoor unit ARTH45KHTA operates on 220–240V, 50Hz (available 198–264V) with an indoor supply of 220–240V. Rated cooling capacity is 12.5 kW (42,700 Btu/h) with a range of 5.8–14.5 kW (19,100–49,500 Btu/h), and rated heating capacity is 15.0 kW (47,800 Btu/h) with a range of 5.2–17.0 kW (17,700–58,000 Btu/h). Cooling input power is 3.43 kW rated / 4.39 kW max and heating input power is 3.49 kW rated / 4.46 kW max, with rated current 15.1A cooling and 15.3A heating. Efficiency is EER 3.64 and COP 4.30, TCSPF is 5.079 / 5.180 / 5.528 (hot/avg/cool) and HSPF is 4.693 / 4.448 / 3.992, with sensible cooling capacity 11.89 kW, power factor 98.8% cooling and 99.2% heating, moisture removal 0.9 L/h, and maximum operating current 29.5A. Airflow for both cooling and heating is 903 / 767 / 631 l/s (high/med/low), using a sirocco fan ×2 with 197W motor output and static pressure 60 to 260 Pa; sound pressure is 43 / 39 / 35 dB(A) (high/med/low) and cooling sound power high is 65 dB(A). Dimensions are 425 × 1,250 × 490 mm net (gross 490 × 1,440 × 655 mm) with weight 53 kg net / 61 kg gross, piping is Ø9.52 / Ø15.88 flare, drain is PVC Ø25(I.D.) / Ø32(O.D.), operating range is 18–32°C cooling (≤80%RH) and 16–30°C heating, controller is wired, and IP rating is IPX0.
The outdoor unit AOTH45KCTA operates on 220–240V ~ 50Hz (available 198–264V) with starting current 15.3A. Airflow is 1,945 l/s (7,000 m³/h) for both cooling and heating through a propeller fan ×2 with 100W motor output. Sound pressure level shown is 53 dB(A) and sound power level is 70 dB(A). The heat exchanger configuration is shown with Main 1 and Main 2 coils at 1,386 × 985 × 18.19 mm, copper tube and aluminium blue-fin, using a DC twin rotary compressor with 2,550W motor output. Refrigerant is R32 with charge 3,400 g, refrigerant oil is RmM68AF 1,150 cm³, enclosure is steel sheet in beige (approx. Munsell 10YR 7.5/1.0), dimensions are 1,418 × 970 × 370 mm net (gross 1,589 × 1,057 × 495 mm) with weights 95 kg net / 107 kg gross, piping is Ø9.52 / Ø15.88 flare, pre-charge length is 30 m, maximum length 75 m, maximum height difference 30 m, operating range is −10 to 50°C cooling and −15 to 24°C heating, drain is LDPE with tip Ø13.0 (I.D.) / Ø16.0–Ø16.8 (O.D.), and IP rating is IPX4. Electrical characteristics are 220–240V 50Hz, max operating current 29.5A, starting current 15.3A, circuit breaker 32A, power cable 4.0 mm², connection cable 1.5 mm², and limited wiring length 76 m, while safety devices include fuses 500V 50A, 250V 10A, 250V 3.15A, fan motor protection 122 ±9°C activate / 107–126°C reset, and compressor protections 110°C, 108°C, and −20°C (COOL/DRY) with resets after 7 minutes, ≤80°C, and −15°C, respectively.