Installation information
Air Conditioning
Multi-Head Ultra System 18.1kW
Here's an outline of what you need to know to begin installing the Emerald Multi-Head Ultra 18.1kW.
Designed to deliver outstanding performance in both residential homes and small commercial buildings, this system offers versatile climate control solutions. Follow this guide for a smooth and efficient installation process, ensuring optimal operation and comfort.
WARRANTY
5 years system
2 years labour and service
Product Specifications
| Model | Heating | Cooling | Dimensions (LxWxH) | Weight |
|---|---|---|---|---|
| Outdoor ACV180U | 20.4kW | 18.1kW | 360x1080x980 | 97kg |
| Indoor ACV28W | 3.3kW | 2.8kW | 890x1300x470 | 99kg |
| Indoor ACV45W | 5.0kW | 4.5kW | 230x1120x315 | 13kg |
| Indoor ACV71W | 8.0kW | 7.1kW | 230x960x315 | 14.5kg |
House sizing guide
| Room Size | Example Room | Recommended Ultra Heating Output |
|---|---|---|
| Up to 30m² | Bedroom, Home Office | 3.3kW |
| 31 - 50m² | Bedroom with ensuite, small lounge | 5kW |
| More than 51m² | Lounge, large kitchen, open plan areas, large lounges | 8kW |
Electrical installation
Isolators and cables
| Wired controller cable | 0.75mm² 2 core shielded twisted pair |
| Outdoor unit rated current | 25.09 A |
| Outdoor unit breaker size | 32 A |
| Outdoor unit power cable | 6.0mm² (comms and power) |
| Indoor unit rated current | 5.24 A |
| Indoor unit breaker size | 10 A (Based on indoor unit qty) |
| Indoor unit to indoor unit cable | 2.5mm² (power) |
| Comms cable between IDU and ODU | 0.75mm² 2 core shielded twisted pair |
The electrical installation diagram shows the system's wiring, connecting the outdoor unit to the electrical switchboard and indoor units. It highlights three key connections: 1. Power supply, 2. Outdoor-to-indoor communication, and 3. Indoor-to-indoor communication. The indoor unit connections section illustrates the use of brass fittings, including branch headers and adaptors, for refrigerant line connections.
Refrigerant piping installation
Required
- Vacuum process
- Refrigerated handling license
Recommended
- Nitrogen test
Refrigerant piping
- Max indoor unit = 11
- Min indoor unit = 2
- Maximum individual pipe length <= 40m
- Total pipe length <= 120m
Outdoor unit piping connection sizes
| Liquid line | Ø9.53mm (3/8 Inch) |
| Gas line | Ø19.05mm (3/4 Inch) |
Indoor units
| ACV28W | Liquid line | Ø6.35mm (1/4 Inch) |
| ACV28W | Gas line | Ø9.52mm (3/8 Inch) |
| ACV45W | Liquid line | Ø6.35mm (1/4 Inch) |
| ACV45W | Gas line | Ø12.7mm (1/2 Inch) |
| ACV71W | Liquid line | Ø9.52mm (3/8 Inch) |
| ACV71W | Gas line | Ø15.9mm (5/8 Inch) |
All piping connections are flare connections, no welding or brazing required.
The refrigerant piping schematic illustrates the outdoor unit connected to a branch header, which then distributes refrigerant to multiple indoor units. It specifies the pipe sizes for liquid and gas lines for the outdoor unit (Ø9.53mm liquid, Ø19.05mm gas) and various indoor unit models (ACV28W, ACV45W, ACV71W) with their respective liquid and gas line sizes. Images of the AC VRF Branch Header 6 and Emerald AC VRF Branch Adaptors are also shown.
