Specifications - ARTH24KHTA (Indoor) & AOTH24KBTA (Outdoor)

This article provides the technical specifications for the ARTH24KHTA indoor unit and its corresponding AOTH24KBTA outdoor unit.

Quick Answer

Model Mapping

• Indoor unit model: ARTH24KHTA
• Outdoor unit model: AOTH24KBTA
• These two units operate as a matched system.

Electrical Specifications

• Power supply: Single phase
• Voltage: 220-240 V
• Frequency: 50 Hz
• Available voltage range: 198-264 V

Cooling Performance (ARTH24KHTA)

• Cooling capacity: 7.1 kW
• Cooling capacity range: 1.8-8.1 kW
• Power consumption (cooling): 2.14 kW
• Maximum power consumption (cooling): 2.53 kW
• Energy Efficiency Ratio (EER): 3.32 kW/kW
• Rated operating current: 9.4 A
• Maximum operating current: 13.6 A
• Sensible capacity: 6.79 kW
• Power factor: 99.0%
• Moisture removal: 0.5 L/h

Heating Performance (ARTH24KHTA)

• Heating capacity: 8.0 kW
• Heating capacity range: 2.0-9.1 kW
• Power consumption (heating): 2.05 kW
• Maximum power consumption (heating): 2.45 kW
• Coefficient of Performance (COP): 3.90 kW/kW
• Rated operating current: 9.0 A
• Maximum operating current: 13.6 A
• Power factor: 99.0%

Compressor & Refrigerant Details

• Compressor type: DC twin rotary
• Motor output: 1,060 W
• Compressor design: Twin rotary
• Compressor model: Not specified in the manual
• Compressor weight: Not specified in the manual
• Refrigerant type: R32
• Factory charge: 1,250 g
• Additional charge rate: 20 g per meter
• Pre-charge length: 20 m
• Maximum piping length: 30 m
• Maximum piping height: 25 m
• Refrigerant oil type: RmM68AF
• Refrigerant oil amount: 400 cm³

Fan Motor, Speed & Airflow

• Indoor fan type: Sirocco fan x 2
• Indoor fan motor output: 197 W
• Static pressure range: 60 to 210 Pa
• Indoor airflow - cooling:
  • High: 1,800 m³/h
  • Medium: 1,530 m³/h
  • Low: 1,260 m³/h
• Indoor airflow - heating:
  • High: 1,800 m³/h
  • Medium: 1,530 m³/h
  • Low: 1,260 m³/h
• Outdoor fan type: Propeller fan x 1
• Outdoor fan motor output: 49 W
• Outdoor airflow:
  • Cooling: 2,150 m³/h
  • Heating: 2,440 m³/h

Noise Levels

• Indoor unit noise - cooling:
  • High: 34 dB(A)
  • Medium: 30 dB(A)
  • Low: 27 dB(A)
• Indoor unit noise - heating:
  • High: 34 dB(A)
  • Medium: 30 dB(A)
  • Low: 27 dB(A)
• Indoor sound power level, cooling high: 56 dB(A)
• Outdoor unit noise:
  • Cooling: 48 dB(A)
  • Heating: 50 dB(A)
  • Sound power level: 68 dB(A)

Dimensions & Weight

• Indoor unit dimensions (H x W x D): 400 x 1,050 x 500 mm
• Indoor unit gross dimensions (H x W x D): 460 x 1,230 x 640 mm
• Indoor unit weight: 38 kg (net) / 45 kg (gross)
• Outdoor unit dimensions (H x W x D): 716 x 820 x 315 mm
• Outdoor unit gross dimensions (H x W x D): 776 x 961 x 450 mm
• Outdoor unit weight: 42 kg (net) / 46 kg (gross)

Pipe Connection Details

• Liquid pipe size: Ø6.35 mm (1/4 in.)
• Gas pipe size: Ø12.70 mm (1/2 in.)
• Connection method: Flare
• Indoor drain hose size: Ø25 mm I.D. / Ø32 mm O.D.
• Outdoor drain hose size: Ø13.0 mm I.D. / Ø16.0 to Ø16.8 mm O.D.

Operating Range

• Indoor cooling operating range: 18 to 32°C
• Indoor cooling humidity limit: 80% RH or less
• Indoor heating operating range: 16 to 30°C
• Outdoor cooling operating range: -10 to 50°C
• Outdoor heating operating range: -15 to 24°C

Direct Answers to Common Questions

• What is the cooling capacity of ARTH24KHTA? 7.1 kW.
• What is the heating capacity of ARTH24KHTA? 8.0 kW.
• What is the EER of ARTH24KHTA? 3.32 kW/kW.
• What is the COP of ARTH24KHTA? 3.90 kW/kW.
• What refrigerant does this system use? R32.
• Does this system support a 30 m pipe run? Yes.
• What is the additional refrigerant charge? 20 g per meter over 20 m.
• What is the maximum piping height? 25 m.