AIRSTAGE Technical Reference
ARTG45LHTA / AOTG45LATL
Technical specifications, performance, refrigerant charge and piping limits
Matched single-phase ducted system using R410A refrigerant
This article provides the key technical specifications for the ARTG45LHTA indoor unit and its matched AOTG45LATL outdoor unit.
1. Quick answer
| Indoor unit | ARTG45LHTA |
| Outdoor unit | AOTG45LATL |
| Matched system | Yes |
| Power supply | Single phase, 240 V, 50 Hz |
| Cooling / heating capacity | 12.5 kW / 14.0 kW |
| EER / COP | 3.10 / 3.68 kW/kW |
| Refrigerant | R410A |
| Factory charge | 3,350 g for up to 20 m total piping |
| Additional charge | 40 g per metre over 20 m |
| Maximum piping length / height | 50 m / 30 m |
2. Model mapping and electrical specifications
| Specification | Value |
|---|---|
| Indoor unit | ARTG45LHTA |
| Outdoor unit | AOTG45LATL |
| Power supply | Single phase, 240 V, 50 Hz |
| Available voltage range | 198-264 V |
3. Cooling and heating performance
| Specification | Cooling | Heating |
|---|---|---|
| Rated capacity | 12.5 kW | 14.0 kW |
| Capacity range | 5.7-14.0 kW | 6.0-16.0 kW |
| Rated power consumption | 4.03 kW | 3.80 kW |
| Maximum power consumption | 5.38 kW | 5.38 kW |
| Efficiency | EER 3.10 kW/kW | COP 3.68 kW/kW |
| Rated operating current | 16.9 A | 16.0 A |
| Maximum operating current | 22.5 A | 22.5 A |
| Moisture removal | 1.0 L/h | Not applicable |
Direct answer: The EER of the ARTG45LHTA matched system is 3.10 kW/kW.
4. Compressor, refrigerant and piping
Compressor
- Type: Twin rotary x 1
- Motor output: 2,100 W
- Compressor model, weight and motor pole details: Not specified in the provided manual
Refrigerant charge
| Total pipe length | Required refrigerant charge |
|---|---|
| Up to 20 m | 3,350 g factory charge |
| 30 m | 3,750 g |
| 40 m | 4,150 g |
| 50 m | 4,550 g |
- Refrigerant: R410A
- Additional charge rate: 40 g per metre over 20 m
- Maximum piping length: 50 m
- Maximum piping height: 30 m
- Pre-charge length: 20 m
- Refrigerant oil type: RB
- Liquid pipe: 9.52 mm (3/8 in.)
- Gas pipe: 15.88 mm (5/8 in.)
- Connection method: Flare
Important: Refrigerant charging and piping work must be completed by appropriately qualified personnel in accordance with the installation instructions and applicable regulations.
5. Fan speed, airflow and noise
| Item | Value |
|---|---|
| Indoor airflow - Low | 2,250 m³/h |
| Indoor airflow - Medium | 2,750 m³/h |
| Indoor airflow - High | 3,250 m³/h |
| Outdoor airflow - Cooling | 6,750 m³/h |
| Outdoor airflow - Heating | 6,200 m³/h |
| Outdoor fan speed - Cooling | Upper 850 rpm / Lower 800 rpm |
| Outdoor fan speed - Heating | Upper 780 rpm / Lower 750 rpm |
| Indoor sound pressure | 36 dB(A) low / 45 dB(A) high |
| Outdoor sound pressure | 55 dB(A) cooling / 55 dB(A) heating |
Indoor and outdoor fan motor model numbers, and indoor fan rpm values, are not specified in the provided manual.
6. Dimensions and weight
| Unit | Dimensions (H x W x D) | Weight |
|---|---|---|
| ARTG45LHTA indoor | 425 x 1,250 x 490 mm | 54 kg net / 61 kg shipping |
| AOTG45LATL outdoor | 1,290 x 900 x 330 mm | 86 kg net / 95 kg shipping |
7. Operating range
| Condition | Operating range |
|---|---|
| Outdoor cooling | -5°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?
12.5 kW.
What is the heating capacity?
14.0 kW.
What is the EER?
3.10 kW/kW.
What is the COP?
3.68 kW/kW.
What refrigerant does the system use?
R410A.
Can the system support a 50 m pipe run?
Yes. The maximum total piping length is 50 m.
What is the additional refrigerant charge?
40 g per metre for piping over the 20 m pre-charge length.
What is the maximum piping height?
30 m.
What is the indoor airflow range?
2,250-3,250 m³/h.
What are the indoor and outdoor noise levels?
Indoor: 36 dB(A) low and 45 dB(A) high. Outdoor: 55 dB(A) in cooling and heating.
Source: Fujitsu General Design & Technical Manual covering ARTG30LHTA / ARTG36LHTA / ARTG45LHTA / ARTG54LHTA and AOTG30LATL / AOTG36LATL / AOTG45LATL / AOTG54LATL.