Fujitsu Airstage Big Duct - R410A
The Fujitsu Airstage R410A High Static Big Duct system (LHTA + LRLA) delivers powerful, efficient heating and cooling designed for larger commercial and demanding residential spaces where long duct runs and high static pressure performance are required. These big ducted units feature a splitable indoor design, allowing the fan and heat exchanger to be handled separately for easier installation and access, while advanced airflow control, automatic adjustment, and a high-efficiency DC inverter reduce noise and energy use. Built around proven R410A refrigerant technology and compatible with robust outdoor units, the LHTA + LRLA range is ideal for offices, restaurants, retail areas, hotels, and multi-room environments that demand dependable, balanced airflow and quiet operation in complex HVAC layouts.
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Model Reference |
Cool Capacity (kW) |
Heat Capacity (kW) |
Max Pipe (m) |
EuP Lot 10 Energy Rating |
Pipe Size Gas |
Pipe Size Liquid |
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Wi-Fi Control |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| Indoor Unit | Outdoor Unit | SCOP | SEER | ||||||||
| ARYG72LHTA | AOYG72LRLA | 19.0 | 22.4 | 100 | 3.94 | 5.22 | 7/8 | 1/2 | Single / Three | Optional | |
| ARYG90LHTA | AOYG90LRLA | 22.0 | 27.0 | 100 | 3.92 | 5.14 | 7/8 | 1/2 | Single / Three | Optional | |
| For more information, see Technical Specifications. |
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Key features
Central Control System Integration (Optional)
For enhanced building management, the system can link with a range of central control platforms. By integrating via optional MODBUS or KNX interfaces, users can centrally monitor and control not only air conditioning but also other facility equipment, providing a unified and efficient control solution.
Quiet & Efficient Operation
Advanced airflow control with a V-shaped heat exchanger and DC inverter technology are used to minimise operational noise. High efficiency, stable performance and comfortable conditions are all ensured, even in large, ducted installations.
Split Indoor Unit Design for Easy Installation
The indoor unit can be separated into fan and heat exchanger sections, reducing handling weight and simplifying installation, access, and maintenance in plant rooms or ceiling voids with limited space.
Automatic Airflow Adjustment
The system automatically sets the optimum airflow to match installation conditions, helping reduce setup time and simplify commissioning for faster installation.
Big Duct R410A Range Specification Table
| Technical Data | Model Number (Indoor Unit + Outdoor Unit) | |
|---|---|---|
| ARYG72LHTA + AOYG72LRLA | ARYG90LHTA + AOYG90LRLA | |
| Power Source Indoor/Outdoor | Single phase, 230V, 50 Hz/ 3 phase 400 V, 50 Hz | |
| Cooling Capacity (Rated) kW | 19.0 | 22.0 |
| Heating Capacity (Rated) kW | 22.4 | 27.0 |
| Total Input Power Cooling / Heating (kW) | 6.46/6.59 | 7.77/8.18 |
| EER (Cooling) W/W | 2.94 | 2.83 |
| COP (Heating) W/W | 3.40 | 3.30 |
| SEER (Cooling) W/W | 5.22 | 5.14 |
| SCOP (Heating) W/W | 3.94 | 3.92 |
| ηc % | 205.8 | 202.6 |
| ηh% | 154.6 | 153.8 |
| Sound Pressure Level Indoor (Cooling) H/M/L/Q dB(A) | 46/43/41/39 | 47/44/42/40 |
| Sound Pressure Level Indoor (Heating) H/M/L/Q dB(A) | 46/43/41/39 | 47/44/42/40 |
| Sound Pressure Level Outdoor (Cooling / Heating) dB(A) | 55/55 | 55/57 |
| Airflow Rate Indoor (Cooling / Heating) High m³/h | 4,300/ 4,300 | 4,300/ 4,300 |
| Airflow Rate Outdoor (Cooling / Heating) High m³/h | 8,400/ 8,400 | 8,400/ 9,000 |
| Static Pressure Range (Standard) Pa | 50 to 150 (72) | 50 to 200 (72) |
| Dimensions Indoor (H × W × D) mm | 360 × 1,400 × 850 | 360 × 1,400 × 850 |
| Dimensions Outdoor (H × W × D) mm | 1,428 × 1,080 × 480 | 1,428 × 1,080 × 480 |
| Max. Operating Current Indoor (Cooling/Heating) A | 4.6 / 4.6 | 6.0 / 6.0 |
| Max. Operating Current Outdoor (Cooling/Heating) A | 15.8 / 15.8 | 20.6 / 20.6 |
| Connection Pipe Diameter (Liquid & Gas) mm | 12.7/25.4 | 12.7/25.4 |
| Max Pipe Length (Pre-Charge) m | 100 (30) | 100 (30) |
| Max Height Difference | 30 | 30 |
| Weight Indoor / Outdoor (kg) | 69 / 165 | 80/ 174 |
| Refrigerant (GWP) | R410A (2,088) | R410A (2,088) |
| Refrigerant Charge (CO2eq-T) kg | 5.6 (11.693) | 5.6 (11.693) |
| Operating Range (Cooling) °CDB | -15 to 46 | -15 to 46 |
| Operating Range (Heating) °CDB | -20 to 24 | -20 to 24 |
This table is intended as a guide only. Please consult manufacturer's information for more details.
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