AIRSTAGE Technical Reference
ARTG54LHTB / AOTG54LATT
Matched ducted system technical specifications
Performance, electrical, refrigerant, piping, airflow, noise and dimensional data
This article summarises the technical specifications for the ARTG54LHTB indoor unit and corresponding AOTG54LATT outdoor unit. These models operate as a matched system.
1. Quick answer
| Indoor unit | ARTG54LHTB |
| Outdoor unit | AOTG54LATT |
| Matched system | Yes |
| Power supply | 3N ~ 415 V, 50 Hz |
| Cooling / heating capacity | 14.0 kW / 16.0 kW |
| EER / COP | 3.25 / 3.66 kW/kW |
| Refrigerant | R410A |
| Factory charge | 3,450 g for up to 30 m piping |
| Additional charge | 50 g per metre over 30 m |
| Maximum pipe length / height | 75 m / 30 m |
2. Model mapping and electrical specifications
| Item | Specification |
|---|---|
| Indoor unit | ARTG54LHTB |
| Outdoor unit | AOTG54LATT |
| Power supply | 3N ~ 415 V, 50 Hz |
| Available voltage range | 3N ~ 342-457 V |
3. Cooling and heating performance
| Specification | Cooling | Heating |
|---|---|---|
| Rated capacity | 14.0 kW | 16.0 kW |
| Capacity range | 6.2-16.0 kW | 6.2-18.0 kW |
| Rated power consumption | 4.31 kW | 4.37 kW |
| Maximum power consumption | 7.08 kW | 7.08 kW |
| Efficiency | EER 3.25 kW/kW | COP 3.66 kW/kW |
| Rated operating current | 6.2 A | 6.3 A |
| Maximum operating current | 12.0 A | 12.0 A |
| Moisture removal | 1.5 L/h | - |
Direct answer: The EER of the ARTG54LHTB is 3.25 kW/kW.
4. Compressor, refrigerant and piping
Compressor
- Type: DC twin rotary, one compressor
- Motor output: 3,750 W
- Compressor model and weight: Not specified in the provided manual
Refrigerant charge
| Item | Specification |
|---|---|
| Refrigerant | R410A |
| Factory charge | 3,450 g for total pipe length up to 30 m |
| Charge at 40 m | 3,950 g |
| Charge at 50 m | 4,450 g |
| Charge at 60 m | 4,950 g |
| Charge at 70 m | 5,450 g |
| Additional charge rate | 50 g per metre over 30 m |
| Maximum pipe length / height | 75 m / 30 m |
| Refrigerant oil | POE |
Connection pipe details
- Liquid pipe: Ø9.52 mm (3/8 in.)
- Gas pipe: Ø15.88 mm (5/8 in.)
- Connection method: Flare
5. Fan speed, airflow and noise
| Item | Specification |
|---|---|
| Indoor fan motor model | Not specified in the provided manual |
| Outdoor fan motor model | Not specified in the provided manual |
| Outdoor fan speed | Cooling: upper fan 900 rpm / lower fan 800 rpm. Heating: upper fan 870 rpm / lower fan 840 rpm |
| Indoor airflow | Low 2,450; medium 3,000; high 3,550 m³/h |
| Outdoor airflow | 6,900 m³/h in cooling and heating |
| Indoor sound pressure | 36 dB(A) low / 45 dB(A) high |
| Outdoor sound pressure | 55 dB(A) cooling / 56 dB(A) heating |
6. Dimensions and weight
| Unit | Dimensions (H × W × D) | Weight |
|---|---|---|
| ARTG54LHTB indoor | 425 × 1,250 × 490 mm | 54 kg net / 61 kg shipping |
| AOTG54LATT outdoor | 1,290 × 900 × 330 mm | 104 kg net / 114 kg shipping |
7. Operating range
- Outdoor cooling: -15°C to 46°C
- Outdoor heating: -15°C to 24°C
- Indoor cooling: 18°C to 32°C, 80% RH or less
- Indoor heating: 16°C to 30°C
8. Direct answers to common questions
What is the cooling capacity?
14.0 kW.
14.0 kW.
What is the heating capacity?
16.0 kW.
16.0 kW.
What are the EER and COP?
EER 3.25 kW/kW and COP 3.66 kW/kW.
EER 3.25 kW/kW and COP 3.66 kW/kW.
Does the system support a 75 m pipe run?
Yes. The maximum pipe length is 75 m, with a maximum height difference of 30 m.
Yes. The maximum pipe length is 75 m, with a maximum height difference of 30 m.
What additional refrigerant charge is required?
50 g per metre for pipe length over 30 m.
50 g per metre for pipe length over 30 m.
What is the indoor airflow range?
2,450-3,550 m³/h.
2,450-3,550 m³/h.
Source: Fujitsu General Design & Technical Manual covering ARTG36LHTB / ARTG45LHTB / ARTG54LHTB / ARTG60LHTA and AOTG36LATT / AOTG45LATT / AOTG54LATT / AOTG60LATT.