The Fujitsu Airstage SET-ASTG12KMTC is an efficient Lifestyle reverse-cycle split-system air conditioner comprising the ASTG12KMTC indoor unit and AOTG12KMTC outdoor unit. Delivering 3.5kW rated cooling and 3.7kW rated heating, it is suited to bedrooms, home offices and small-to-medium living spaces.
Its inverter system adjusts output according to changing room conditions, while Human Sensor, Economy and Super Quiet modes help maintain comfortable and efficient operation. Optional anywAiR technology enables convenient app-based control from a compatible smart device.
Features
3.5kW rated cooling capacity
3.7kW rated heating capacity
Reverse-cycle inverter operation
All-DC inverter technology
Human Sensor with energy-saving functions
Powerful Mode for rapid temperature adjustment
Economy Mode
Low Noise outdoor-unit mode
Super Quiet indoor operation from 19dBA in cooling
Automatic heating and cooling changeover
Automatic airflow adjustment
Automatic vertical louvre movement
10°C Heat operation
Sleep, program, weekly and on/off timers
Automatic restart following a power interruption
Demand Response compatible
Washable front panel
Apple-Catechin air filter
Long-life ion deodorisation filter
Blue Fin outdoor heat exchanger
Optional Wi-Fi and wired-controller compatibility
Approved for the Victorian Energy Upgrades program
Indoor & Outdoor
| Specification | Details |
|---|
| Indoor Model | ASTG12KMTC |
| Indoor Dimensions | 270 × 834 × 222mm |
| Indoor Weight | 10kg |
| Outdoor Model | AOTG12KMTC |
| Outdoor Dimensions | 542 × 799 × 290mm |
| Outdoor Weight | 32kg |
| Supply Air Flange | Not applicable – wall-mounted indoor unit |
| Return Air Flange | Not applicable – wall-mounted indoor unit |
| Pipe Sizes | 6.35mm liquid / 9.52mm gas |
| Refrigerant | R32 – 850g factory charge |
| Cooling Capacity | 0.80–3.50–4.10kW |
| Heating Capacity | 0.90–3.70–6.10kW |
| Air Flow | 194L/s cooling / 214L/s heating at high fan |
| Drain | Drain pipe supplied; connection dimensions are not stated in the Lifestyle brochure |
| Power Supply | 220–240V, single-phase, 50Hz |
| Max Current | 9.0A |
Performance Specifications
| Specification | Cooling | Heating |
|---|
| Rated Capacity | 3.50kW | 3.70kW |
| Capacity Range | 0.80–4.10kW | 0.90–6.10kW |
| Rated Input Power | 0.89kW | 0.79kW |
| Input Power Range | 0.15–1.29kW | 0.25–1.89kW |
| Running Current | 4.2A | 4.0A |
| Maximum Operating Current | 6.5A | 9.0A |
| EER / COP | 3.93 | 4.68 |
| Indoor Sound Pressure – High | 40dBA | 42dBA |
| Indoor Sound Pressure – Quiet | 19dBA | 21dBA |
| Outdoor Sound Pressure | 49dBA | 49dBA |
| Outdoor Sound Power | 59dBA | 59dBA |
| Outdoor Operating Range | −10°C to +46°C | −15°C to +24°C |
Seasonal Efficiency
| Climate Zone | Cooling Star Rating | Heating Star Rating | TCSPF | HSPF |
|---|
| Hot | 4.5 | 3.5 | 6.477 | 5.241 |
| Average | 4.5 | 3.0 | 6.193 | 4.817 |
| Cold | 5.0 | 2.5 | 6.625 | 4.278 |
Additional Specifications
| Specification | Details |
|---|
| Moisture Removal | 1.0L/h |
| Maximum Pipe Length | 20m |
| Factory Pre-Charged Pipe Length | 15m |
| Maximum Height Difference | 15m |
| Refrigerant Type | R32 |
| Refrigerant Charge | 850g |
| Communication | UART – CN6 port |
| Compressor Control | Inverter |
| Demand Response | Compatible |
| VEU Approval | Approved for the Victorian Energy Upgrades program |
Optional Controls and Accessories
| Model Number | Description | Requirements |
|---|
| UTY-NXT-BOX | anywAiR Technology Wi-Fi Adaptor II | Provides app-based control through a compatible wireless network |
| UTY-RVRY | Kagami wired remote controller | Requires UTY-TWRXZ2 communication kit |
| UTY-RNRYT5 | Backlit wired touch controller | Requires UTY-TWRXZ2 communication kit |
| UTY-RSRYT | Simple wired controller with operating-mode selection | Requires UTY-TWRXZ2 communication kit |
| UTY-RHRYT | Simple wired controller without operating-mode selection | Requires UTY-TWRXZ2 communication kit |
| UTY-TWRXZ2 | Optional communication kit | Required when connecting the compatible wired controllers listed above |
| UTY-XCSXZ2 | External input and output PCB | Provides an interface for compatible external controls |
| UTY-XWZXZ5 | External control wiring kit | Requires UTY-XCSXZ2 external input and output PCB |
Wi-Fi Control
The optional UTY-NXT-BOX anywAiR Technology Wi-Fi Adaptor II allows the air conditioner to be operated from a compatible smartphone or tablet. Available functions may include:
Switching the system on and off
Selecting the operating mode
Adjusting the set temperature
Changing fan speed and airflow settings
Configuring timers and schedules
Monitoring operating status
Controlling the system while away from the premises
Wi-Fi operation requires a compatible wireless network, supported smart device and the applicable Fujitsu General control application.
Wired Controller Requirements
The UTY-TWRXZ2 communication kit is required when connecting the UTY-RVRY, UTY-RNRYT5, UTY-RSRYT or UTY-RHRYT wired controllers.
Wired controllers and the communication kit are optional accessories and are not included with the standard system.
Typical Applications
Important Information
The complete system comprises the ASTG12KMTC indoor unit and AOTG12KMTC outdoor unit.
Fujitsu’s current product listing and Lifestyle brochure specify 3.7kW rated heating. This value has been used instead of the conflicting 4.1kW figure shown in a separate technical reference.
Optional Wi-Fi, wired-control and external-control accessories are sold separately.
The Lifestyle brochure specifies a drain pipe as an outdoor-unit accessory but does not provide its connection dimensions.
Product selection and installation must be completed by a suitably qualified air-conditioning professional.
Pipe sizing, electrical requirements and installation limits should be confirmed before installation.
Sources: Fujitsu General Australia official SET-ASTG12KMTC product information and Fujitsu Airstage Lifestyle Range Australian brochure
