Unmatched Airflow, High Static Pressure & Commercial-Grade Climate Control
When large commercial spaces need fast, powerful and reliable climate control, only a select category of HVAC equipment is designed to meet the performance demands. Toshiba’s RAV High Static Ducted – Big Digital Inverter Series 1 sits firmly in that category. Built for applications where long duct runs, high air volume and strong air throw are essential, this heavy-duty range delivers superb efficiency with exceptional installation flexibility.
Designed for 1:1 pairing with Toshiba’s Big Digital Inverter outdoor units, this series represents the upper end of the RAV ducted line-up, offering 19.0kW and 22.5kW models that excel in large, open, high-traffic environments. From retail stores to hotel lobbies, leisure centres, gyms and cinemas, these units are engineered for one thing: moving large quantities of conditioned air with precision and reliability.
A High-Pressure Ducted System Built for Demanding Projects:
Traditional ducted units are often limited by static pressure. As duct lengths increase, or as multiple outlets are added, airflow resistance grows, and not all systems can handle that pressure drop. The Toshiba Big Digital Inverter models overcome these challenges through their exceptionally high external static pressure, reaching up to 196 Pa depending on configuration.
This makes the system suitable for:
- Long and complex duct runs
- Large plenums feeding multiple diffusers
- High-pressure air distribution networks
- Above-ceiling installation in challenging spaces
- Environments requiring strong air throw to reach distant zones
- Where standard ducted units would struggle, the Big DI series thrives.
R32 Refrigerant & Rotary Inverter Technology:
Both models operate on R32, a low-GWP refrigerant that offers greater efficiency and smaller charge volumes compared to R410A. They also integrate Toshiba’s twin-rotary Digital Inverter compressors, known for:
- Smooth operation with reduced vibration
- High seasonal efficiency
- Greater reliability under prolonged heavy load
- Rapid temperature stabilisation
The result is a system that is both powerful and energy-conscious, without sacrificing performance.
Flexible Installation for Wide-Ranging Commercial Applications:
Despite their size and airflow capability, these indoor units maintain a compact footprint relative to their output. Their rectangular chassis enables straightforward integration into ceiling voids or technical plant areas, and the long pipe runs (up to 100m) provide considerable design freedom.
This range is routinely used in:
- Retail stores & supermarkets
- Hotel atriums & reception areas
- Restaurants & food halls
- Gyms, fitness studios & sports facilities
- Showrooms & exhibition venues
- Cinemas & entertainment complexes
- Open-plan offices and public halls
Anywhere that requires a large volume of conditioned air circulated reliably throughout the day, the Big DI series is an excellent match.
Noise Performance & Operational Quality
Although these units are designed for large commercial environments, Toshiba engineers have maintained impressive sound performance for the power output. The indoor units offer quiet operation considering the airflow volume, while the outdoor units include advanced acoustic control, diffuser fan design and inverter modulation to keep noise levels steady and predictable.
Combined with the selectable three-stage static pressure control, this allows installers to balance performance and acoustics according to each project’s needs.
Technical Specifications Table:
| Specification | RM2241DTP-E2 | RM2801DTP-E2 |
|---|---|---|
| Cooling Capacity (kW) | 19.0 | 22.5 |
| Heating Capacity (kW) | 22.4 | 24.0 |
| UK Cooling Total/Sensible (kW) | 18.56 / 15.62 | 21.98 / 19.54 |
| UK Heating (kW) | 13.82 | 14.85 |
| SEER / SCOP (kW/kW) | 6.30–3.80 | 5.50–3.70 |
| Energy Class | 249.0 / 149.0 | 217.0 / 145.0 |
| Indoor Weight (kg) | 97–117 | 97–117 |
| Indoor Dimensions (H×W×D mm) | 448 × 1400 × 900 | 448 × 1400 × 900 |
| Outdoor Dimensions (mm) | 890 × 1100 × 460 | 890 × 1100 × 460 |
| Indoor Airflow (H/M/L l/s) | 1055 – 889 – 694 | 1333 – 1167 – 972 |
| External Static Pressure (Pa) | 250 – 50 | 250 – 50 |
| Outdoor Airflow (m³/h – l/s) | 6600 – 1833 | 7600 – 2111 |
| Sound Pressure ID (H/M/L dB) | 44 – 40 – 36 | 46 – 42 – 38 |
| Outdoor Sound Pressure (dB) | 58 / 60 | 61 / 63 |
| Power Supply | 380–415V~3-50Hz & 25A | 380–415V~3-50Hz & 25A |
| Interconnecting Cable | 3C+E | 3C+E |
| Pipe Connections (Gas–Liquid) | 1 1/8″ – 1/2″ | 1 1/8″ – 1/2″ |
| Min/Max Pipe Length (m) | 5 / 100 | 5 / 100 |
| Max Height Difference (m) | 30 | 30 |
| Refrigerant Charge | R32 / 4.6kg / 80g | R32 / 4.6kg / 80g |
Advanced Features That Set the Range Apart:
1️⃣ High Static Compression for Multiple Outlets
The high-pressure design allows the unit to serve many supply diffusers without losing performance. This is vital for large retail and hospitality sites where wide distribution is essential.
2️⃣ Simplified Servicing
Service access to filters, fans and PCB components has been made easier thanks to Toshiba’s detailed mechanical layout, reducing future maintenance time and cost.
3️⃣ Intelligent Inverter Control
Ensures stable temperatures, reduced energy waste and smoother ramp-up/down cycles.
4️⃣ Long Pipe Runs for Complex Buildings
Up to 100m of pipework allows flexibility when plant rooms are located far from occupied spaces.
5️⃣ Commercial-Grade Outdoor Unit Engineering
Outdoor units utilise a strong chassis, large coil surface area and engineered airflow paths to maintain efficiency even in demanding weather conditions.
In Summary:
The Toshiba RAV High Static Ducted – Big Digital Inverter Series 1 stands out as one of the most capable large-space ducted HVAC solutions on the market. With 19–22.5kW capacities, very high static pressure, long pipework allowances and R32 inverter efficiency, this system is purpose-built for large, complex commercial buildings that demand robust and consistent climate control.
Whether installed in a hotel lobby, gym, supermarket, cinema or wide open commercial zone, the Big Digital Inverter series combines excellent airflow performance, modern energy-saving technology and proven Toshiba reliability. It remains a top-tier choice for professional installers and building designers looking for a dependable, high-output ducted solution.
