Electrical Data
The power supply intake is via the outdoor unit. System power supply is KBTA: 220–240V 1N or KRTA: 380–415V 3N, at 50Hz. Available voltage range is KBTA: 198–264V 1N and KRTA: 342–457V 3N. The indoor unit power supply (from outdoor unit) is 220–240V.
Capacity
Cooling capacity is 18.0 kW (61,400 Btu/h) rated, with a range of 5.5–20.0 kW (18,800–68,200 Btu/h). Heating capacity is 20.0 kW (68,200 Btu/h) rated, with a range of 5.5–22.4 kW (18,800–76,400 Btu/h).
Input Power
Cooling input power is 5.61 kW rated and 7.80 kW maximum. Heating input power is 5.24 kW rated and 6.86 kW maximum.
Fan Power (Indoor Unit)
Fan power is 520 W (High), 375 W (Med), 270 W (Low), and 170 W (Quiet).
Current (Rated)
Cooling rated current is KBTA: 24.6 A and KRTA: 8.6 A. Heating rated current is KBTA: 23.0 A and KRTA: 8.1 A.
Efficiency
EER (Cooling) is 3.21 kW/kW. COP (Heating) is 3.82 kW/kW.
TCSPF (Calculation method: Commercial)
Hot climate 4.842, Average climate 5.006, Cool climate 5.389 (kWh/kWh).
HSPF (Calculation method: Commercial)
Hot climate 4.503, Average climate 4.192, Cool climate 3.732 (kWh/kWh).
Sensible Capacity
Cooling sensible capacity is 14.72 kW.
Power Factor
Cooling power factor is KBTA: 99.2% and KRTA: 94.5%. Heating power factor is KBTA: 99.1% and KRTA: 93.8%.
Moisture Removal
Moisture removal is 4.0 L/h (7.0 pints/h).
Maximum Operating Current
Cooling maximum operating current is KBTA: 30 A and KRTA: 15 A. Heating maximum operating current is KBTA: 30 A and KRTA: 15 A.
Fan Motor, Airflow, and Static Pressure
Fan type and quantity is Sirocco fan × 2. Motor output is 750 W. Static pressure range is 60 to 200 Pa.
Cooling airflow rate is 1,139 L/s (4,100 m³/h) High, 1,028 L/s (3,700 m³/h) Med, 917 L/s (3,300 m³/h) Low, 792 L/s (2,850 m³/h) Quiet.
Heating airflow rate is 1,139 L/s (4,100 m³/h) High, 1,028 L/s (3,700 m³/h) Med, 917 L/s (3,300 m³/h) Low, 792 L/s (2,850 m³/h) Quiet.
Noise
Sound pressure level (Cooling) is 44 dB(A) High, 41 dB(A) Med, 39 dB(A) Low, 35 dB(A) Quiet.
Sound pressure level (Heating) is 44 dB(A) High, 41 dB(A) Med, 39 dB(A) Low, 35 dB(A) Quiet.
Sound power level (Cooling, High) is 74 dB(A).
Heat Exchanger / Construction
Heat exchanger dimensions (H × W × D) are 546 × 1,158 × 39.9 mm. Fin pitch is 1.3. Rows × Stages is 3 × 26. Pipe type is Copper tube. Fin type is Aluminium. Enclosure material is Steel sheet (colour not specified in the table).
Dimensions and Weight (Indoor Unit)
Net dimensions are 360 × 1,400 × 850 mm and gross dimensions are 460 × 1,640 × 1,030 mm. Net weight is 69 kg and gross weight is 80 kg.
Connection Pipe / Drain / Operating Range / Controller
Connection pipe size is Liquid Ø9.52 mm (3/8) and Gas Ø15.88 mm (5/8), connection method Flare.
Drain port material is NORYL™ with tip diameter Ø24.4 mm (I.D.) / Ø32 mm (O.D.).
Drain hose material is Polyvinyl chloride with tip diameter Ø31 mm (I.D.) / Ø32 mm (O.D.).
Operation range is Cooling 18 to 32°C with 80%RH or less, and Heating 16 to 30°C.
Remote controller type is Wired (Option: Wired, Wireless).
AOTH65KBTA
Electrical characteristics
Power supply: 220–240V 1N, 50Hz
Maximum operating current: 30 A
Starting current: 24.6 A
Circuit breaker current: 32 A
Power cable: 4.0 mm²
Connection cable (cross-sectional area): 1.5 mm²
Limited wiring length: 76 m
Safety devices
Circuit protection (Current fuse – Main PCB): 500 V, 50 A; 250 V, 10 A; 250 V, 3.15 A
Fan motor protection (Terminal protection program): Activate 135 ±15°C (fan motor stop); Reset 120 ±15°C (fan motor restart)
Compressor protection (Discharge temp.): Activate 110°C (compressor stop); Reset after 7 minutes (compressor restart)
Compressor protection (Compressor temp.): Activate 108°C (compressor stop); Reset 80°C or less (compressor restart)
Compressor protection (Outdoor temp., only in COOL and DRY mode): Activate −20°C (compressor stop); Reset −15°C (compressor restart)
AOTH65KRTA
Electrical characteristics
Power supply: 380–415V 3N, 50Hz
Maximum operating current: 15 A
Starting current: 8.6 A
Circuit breaker current: 16 A
Power cable: 2.5 mm²
Connection cable (cross-sectional area): 1.5 mm²
Limited wiring length: 76 m
Safety devices
Circuit protection (Current fuse – Main PCB): 500 V, 30 A; 250 V, 10 A × 2
Fan motor protection (Thermal protection program): Activate 135 ±15°C (fan motor stop); Reset 120 ±15°C (fan motor restart)
Compressor protection (Discharge temp.): Activate 110°C (compressor stop); Reset after 7 minutes (compressor restart)
Compressor protection (Compressor temp.): Activate 108°C (compressor stop); Reset 80°C or less (compressor restart)
Compressor protection (Outdoor temp., only in COOL and DRY mode): Activate −20°C (compressor stop); Reset −15°C (compressor restart)
Notes (applies to the specifications above)
Specifications are based on measurements at 230V power supply. Cooling condition: indoor 27°CDB/19°CWB and outdoor 35°CDB/24°CWB. Heating condition: indoor 20°CDB/15°CWB and outdoor 7°CDB/6°CWB. Pipe length is 7.5 m with 0 m height difference between outdoor and indoor units. Standard static pressure is 60 Pa (65 model) and 72 Pa (72 and 90 models). Sound pressure levels are measured in the manufacturer’s anechoic chamber, and actual installation conditions may result in higher sound levels.