General Assist Technical Reference
ARTH54KHTA & AOTH54KCTA Specifications
Indoor and outdoor unit technical specifications
Reference information for the ARTH54KHTA indoor unit and AOTH54KCTA outdoor unit.
Quick answer: The ARTH54KHTA is a 14.0 kW rated cooling / 16.5 kW rated heating ducted indoor unit. The associated AOTH54KCTA outdoor platform operates on 220-240 V, 50 Hz and has a maximum operating current of 29.5 A.
1. Indoor unit - ARTH54KHTA
| Specification | Value |
|---|---|
| Model | ARTH54KHTA |
| Power supply | 220-240 V, 50 Hz |
| Available voltage range | 198-264 V |
| Indoor supply | 220-240 V |
| Maximum operating current | 29.5 A |
2. Capacity and electrical performance
| Parameter | Cooling | Heating |
|---|---|---|
| Rated capacity | 14.0 kW (47,800 Btu/h) | 16.5 kW (52,900 Btu/h) |
| Capacity range | 6.3-16.5 kW (21,500-56,300 Btu/h) | 5.8-18.5 kW (19,800-63,100 Btu/h) |
| Input power | 3.91 kW rated / 5.35 kW max | 4.00 kW rated / 4.49 kW max |
| Rated current | 17.2 A | 17.5 A |
| Efficiency | EER 3.58 | COP 4.13 |
| Power factor | 98.8% | 99.2% |
| TCSPF | 4.947 / 5.040 / 5.375 |
| HSPF | 4.388 / 4.154 / 3.729 |
| Sensible cooling capacity | 12.85 kW |
| Moisture removal | 1.6 L/h |
3. Airflow, static pressure and noise
| Parameter | Value |
|---|---|
| Airflow - High / Medium / Low | 986 / 836 / 689 L/s |
| External static pressure range | 60 to 260 Pa |
| Sound pressure - High / Medium / Low | 45 / 40 / 36 dB(A) |
| Cooling sound power - High | 67 dB(A) |
4. Outdoor unit - AOTH54KCTA
The AOTH54KCTA is part of the same outdoor platform family as the AOTH45KCTA and AOTH60KCTA. The specifications below are the values provided for the AOTH54KCTA and the shared AOTH45/54/60KCTA protection listing.
| Specification | Value |
|---|---|
| Model | AOTH54KCTA |
| Power supply | 220-240 V ~ 50 Hz |
| Available voltage range | 198-264 V |
| Starting current | 17.5 A |
| Maximum operating current | 29.5 A |
| Circuit breaker | 32 A |
| Power cable | 4.0 mm² |
| Connection cable | 1.5 mm² |
| Limited wiring length | 76 m |
5. Outdoor safety and protection devices
| Protection / device | Specification |
|---|---|
| Protection ratings | 500 V 50 A; 250 V 10 A; 250 V 3.15 A |
| Fan motor thermal protection | Activates at 122 ± 9°C; reset range 107-126°C |
| Compressor discharge protection | 110°C; reset after 7 minutes |
| Compressor temperature protection | 108°C; reset at ≤80°C |
| Outdoor temperature protection - COOL | -20°C |
| Outdoor temperature protection - DRY | -15°C |
Important: The supplied information does not include fully legible AOTH54KCTA values for all remaining outdoor construction, heat exchanger, refrigerant charge, weight and sound rows. Those values should be added only from a clear AOTH54KCTA specification source.
Technical values should be confirmed against the applicable product specification and installation documentation when carrying out design, installation or service work.