This document covers the specifications for the duct-type indoor model ARTH45KHTA.

Electrical Data
The power supply intake is via the outdoor unit. System power supply is 380–415V 3N, 50Hz, with an available voltage range of 342–457V 3N. The indoor unit power supply (from outdoor unit) is 220–240V 1N.

Capacity
Cooling capacity is 12.5 kW (42,700 Btu/h) rated, with a range of 4.0–14.0 kW (13,600–47,800 Btu/h).
Heating capacity is 14.0 kW (47,800 Btu/h) rated, with a range of 4.2–16.5 kW (14,300–56,300 Btu/h).

Input Power
Cooling input power is 3.86 kW rated and 5.16 kW maximum.
Heating input power is 3.42 kW rated and 5.22 kW maximum.

Current
Cooling rated current is 6.4 A.
Heating rated current is 5.7 A.

Efficiency
EER (Cooling) is 3.29 kW/kW. COP (Heating) is 4.09 kW/kW.

TCSPF (Calculation method: Commercial)
Hot climate 4.928, Average climate 5.083, Cool climate 5.465 (kWh/kWh).

HSPF (Calculation method: Commercial)
Hot climate 4.764, Average climate 4.410, Cool climate 3.901 (kWh/kWh).

Sensible Capacity
Cooling sensible capacity is 11.89 kW.

Power Factor
Cooling power factor is 88.1%. Heating power factor is 87.0%.

Moisture Removal
Moisture removal is 0.9 L/h (1.6 pints/h).

Maximum Operating Current
Cooling maximum operating current is 14.0 A.
Heating maximum operating current is 14.0 A.

Fan, Airflow, Motor Output, and Static Pressure
Fan type is Sirocco fan × 2 with motor output 197 W. Static pressure range is 60 to 260 Pa.
Cooling airflow is 903 L/s (3,250 m³/h) High, 767 L/s (2,760 m³/h) Med, 631 L/s (2,270 m³/h) Low.
Heating airflow is 903 L/s (3,250 m³/h) High, 767 L/s (2,760 m³/h) Med, 631 L/s (2,270 m³/h) Low.

Sound Levels
Sound pressure level (Cooling) is 43 dB(A) High, 39 dB(A) Med, 35 dB(A) Low.
Sound pressure level (Heating) is 43 dB(A) High, 39 dB(A) Med, 35 dB(A) Low.
Sound power level (Cooling, High) is 65 dB(A).

Heat Exchanger / Construction
Heat exchanger dimensions (H × W × D) are 378 × 1,090 × 53.2 mm. Fin pitch is 1.3. Rows × stages are 4 × 18. Pipe type is Copper and fin type is Aluminum. Enclosure material is Steel sheet.

Dimensions and Weight
Net dimensions are 425 × 1,250 × 490 mm, and gross dimensions are 490 × 1,440 × 655 mm.
Net weight is 53 kg, and gross weight is 61 kg.

Connection Pipe
Liquid pipe size is Ø9.52 mm (3/8 in.) and gas pipe size is Ø15.88 mm (5/8 in.). Connection method is Flare.

Drain Hose
Material is PVC. Tip diameter is Ø25 (I.D.) / Ø32 (O.D.) mm.

Operating Range
Cooling range is 18 to 32°C, with 80%RH or less. Heating range is 16 to 30°C.

Controller and Protection Rating
Remote controller type is Wired. International protection rating is IPX0.