TOSHIBA LIGHT BUSINESS

Professional Solutions Without Compromise

TOSHIBA LIGHT BUSINESS provides professional air conditioning solutions for demanding operating conditions. Thanks to state-of-the-art technologies, flexible control and management options, they bring reliability, comfort, and 24/7 operation to businesses, production facilities, server rooms, and offices.

TOSHIBA offers a wide range of indoor units for all types of commercial applications: wall-mounted, ceiling, ducted, and various cassette and ducted units. The offering includes units with capacities up to 27 kW, covering almost any performance requirement or type and size of commercial space.

Toshiba Brand Quality

TOSHIBA LIGHT BUSINESS offers professional air conditioning solutions for demanding operating conditions. Each unit allows not only cooling but also heating, dehumidification, or simple air filtration.

• Energy Efficiency: High-quality and correctly dimensioned TOSHIBA air conditioning systems have very low energy consumption and achieve top efficiency ratings on the market. This contributes not only to cost savings but also to reducing environmental impact.
• Flexibility: Compact dimensions of outdoor units and a large selection of indoor units according to capacity or mounting type – all this provides maximum adaptability of the TOSHIBA system to your needs and spaces.
• 365/7/24 Continuous Operation: TOSHIBA RAV Business systems are specially designed for demanding continuous operation conditions, for example, in technical rooms full of technology. They reliably ensure a stable environment in the room without interruption – 24 hours a day, 7 days a week, 365 days a year!
• Long Lifespan: TOSHIBA air conditioning systems are based on robust and advanced technologies with above-average lifespan. Many years of reliable operation guarantee the required quality of the environment and adherence to its parameters.
• Wide Operating Range: TOSHIBA's perfect technology can ensure the correct desired temperature at outdoor temperatures ranging from -25°C to +52°C. This guarantees that the system can be used for cooling or heating mode all year round.
• Reliability: TOSHIBA is a brand of the highest quality and reliable, trouble-free operation. TOSHIBA is a brand of quality you can always rely on.

Advantages of Toshiba Technology

Inverter air conditioning units increase or decrease their output by regulating the speed of their compressor. When the actual room temperature approaches the desired temperature, the inverter precisely reduces the compressor speed to cover immediate heat losses or gains. This saves energy and reduces temperature fluctuations in the room.

Thanks to compressor speed regulation, only the necessary power is supplied. Smooth speed regulation without frequent compressor on/off cycles significantly extends the lifespan of the entire air conditioning unit. TOSHIBA was the first manufacturer to introduce inverter technology in 1981. Since then, TOSHIBA has continuously refined and intensively developed this technology.

Diagram Description: A line graph showing temperature on the Y-axis and time on the X-axis. A dashed line indicates the target temperature. A solid line shows the temperature fluctuation. The inverter technology line is smoother and stays closer to the target temperature compared to a non-inverter system which shows larger fluctuations.

Toshiba's inverter control uses two different types of power control for the compressor: PWM mode – Pulse Width Modulation for maximum efficiency during partial load (maximum energy saving), or PAM mode – Pulse Amplitude Modulation for maximum power and fastest achievement of the set desired temperature (maximum system output).

Perfection and Versatility

• High Output and Low Energy Consumption: All RAV Digital Inverter series provide a different, yet always optimal and balanced combination of high output and low energy consumption. Thanks to perfect technology, users get not only amazing performance but also maximum comfort with minimal energy consumption under all operating conditions.
• Exceptional Adaptability: Digital Inverter units are characterized by exceptionally compact outdoor units. Using advanced technologies, such as the combination of a DC-hybrid inverter and a Twin-Rotary compressor, they guarantee adaptability to year-round outdoor conditions, covering the range of outdoor temperatures from -27°C to +52°C.
• Quiet Operation & Reliability: The unique and original TOSHIBA Twin Rotary compressor features two chambers and two cams mounted oppositely on a common rotor axis. This unique arrangement provides not only vibration suppression but also maximum mechanical stability. The result is quiet and long-lasting reliable operation of all TOSHIBA devices.
• Stable Temperature, No Fluctuations: Inverter control regulates the instantaneous output of TOSHIBA devices in the range of 20% to 100%. This wide control range maintains a stable temperature without frequent compressor on/off cycles.
• Precise and Clear Control: Special functions like “Soft Cooling” or “Dual Setpoint” provide maximum user comfort. Whether you require maximum comfort or highest efficiency from the device, TOSHIBA systems meet both requirements thanks to easy control and precise management.
• Two Control Modes – PWM & PAM: If you want to quickly reach the desired room temperature, PAM mode is activated, resulting in high power (High Power). Once the desired temperature is reached, the control switches to PWM mode, which maintains the temperature with the lowest energy consumption and maximum efficiency.
• Near-Continuous Power Regulation: Compressor speed, and thus the device's instantaneous output, can be regulated almost continuously, in minimal steps of 0.1 Hz. This allows for precise power setting and optimal energy utilization.

RAV – Solution for One Room

Toshiba Business offers two basic solutions depending on the installation scope and operating requirements. The RAV Light Business series handles single-room air conditioning with one outdoor unit and one to four indoor units, in a single temperature zone. The VRF Business series is designed for multi-room air conditioning solutions in medium to large buildings.

RAV – Solution for One Room

A solution for a single room suitable wherever professional performance is needed, e.g., in an office, shop, or technical room. Wherever reliability, professional use, or continuous operation is required. With the RAV series, one outdoor unit can be connected to one to four indoor units of the same type, with the choice depending on the required cooling capacity distribution in the room. The nominal cooling capacity for RAV units ranges from 2.5 kW to 22.5 kW.

Benefits of the RAV Series

• Wide Application Possibilities: Units suitable for small technical rooms for servers, as well as large supermarket sales areas. It depends only on the required capacity and the same desired temperature.
• Cooling or Heating: Each unit can cool or heat, precisely according to the requirements of the air-conditioned space. With our units, you will gain thermal comfort all year round, simply by pressing a single button!
• Up to Four Indoor Units: One outdoor unit can be combined with one to four indoor units of the same type.
• Continuous 24-Hour Operation: Technical rooms, such as server rooms, computer labs, warehouses, or laboratories, all require a constant temperature year-round, 24 hours a day.

CLASSIC Digital Inverter

The CLASSIC Digital Inverter series offers amazing compact design and high quality at an affordable price. Thanks to this know-how from TOSHIBA, it covers small and medium applications with minimal space requirements.

Diagram Description: Images of several outdoor units of varying sizes, labeled with dimensions like 550 mm, 630 mm, 710 mm, 890 mm. A table lists capacities from 5 kW to 13 kW for 1-phase and 3-phase versions.

• Compact Dimensions & Small Profile: With a maximum width of 900 mm, the CLASSIC Digital Inverter series is exceptionally compact. It can be installed even in very limited spaces, such as ledges, windowsills, display windows, and portals.
• TOSHIBA Know-how & Experience: The Twin Rotary compressor, DC-hybrid inverter, or heat exchanger details clearly demonstrate the innovative technology that TOSHIBA has been developing for over 40 years and which makes the Classic-DI a brilliant solution.
• Classic LineUp & Standard Indoor Units: By using standard indoor units with capacities from 5 to 13 kW, and thanks to the 1-phase or 3-phase outdoor units, most small and standard commercial applications can be covered.
• Operating Temperature Range: Heating is possible down to an outdoor temperature of -15°C, while cooling is possible from -15°C up to +46°C. This allows for deployment in shops, operations, and businesses, or many similar applications.

NEXT Digital Inverter

The NEXT Digital Inverter series offers a combination of compact outdoor units, unparalleled performance range, and a wide selection of indoor units. It is an operationally energy-efficient solution for areas where quality, reliability, and wide operating conditions are emphasized. Made in Europe.

Diagram Description: Images of several compact outdoor units with dimensions 550 mm, 630 mm, 1050 mm.

• Smart Inverter: The DC-Hybrid inverter fully utilizes the device's parameters and combines two intelligent control systems for the fastest achievement of the desired temperature and maximum efficiency. PAM mode for maximum power and rapid achievement of the desired temperature. PWM mode for minimizing power consumption and maximizing operational efficiency. Result: higher energy efficiency.
• Operating Temperature Range: Heating is possible down to an outdoor temperature of -15°C, while cooling is guaranteed from outdoor temperatures of -15°C to +46°C. By preventing wind influence, the unit cools even at lower temperatures without any limitations, making it suitable for full year-round operation.
• Light & Single-Fan Units: All NEXT Digital Inverter outdoor units have only 1 fan. Despite their robust parameters, they maintain lightness and a low installation height.
• Wider Capacity Range: Capacities from 2.5 to 14 kW in 8 steps, with a choice between 1-phase or 3-phase versions, meet the requirements of all project types, from a 15 m² room to a 200 m² shop. Technical rooms, server rooms, shops, restaurants, or offices – nothing is a problem.

SUPER Digital Inverter

The SUPER Digital Inverter series represents top-tier devices for minimal energy consumption. Thanks to the powerful Twin Rotary compressor, it provides longer pipe runs. Inverter technology and a larger heat exchanger offer top reliability and operational efficiency, meaning minimal operating costs!

Diagram Description: Images of outdoor units with dimensions 630 mm, 1050 mm, 1550 mm. A temperature chart is shown for cooling and heating.

• Highest Flexibility & Pipe Run Lengths: SUPER Digital Inverter units are market leaders and allow for height differences between indoor and outdoor units of up to 30 meters within a single system. This height difference is sufficient for solutions in up to 8-story buildings. Such height differences allow for discreet installation of the outdoor unit. Max equivalent pipe length: up to 75 m. Max height difference between indoor and outdoor unit: up to 30 m.
• Ideal Pair: Powerful Twin Rotary Compressor & Vector-Controlled Inverter: DC-Inverter technology is optimally designed for the needs of the TOSHIBA Twin Rotary compressor. This allows the compressor to operate in the range of 20% to 100% of its capacity or speed. This is an exclusive advantage of TOSHIBA technology, including operational savings at partial load.
• Operating Temperature Range: Heating is possible down to an outdoor temperature of -27°C, ensuring a pleasant room temperature even on frosty nights. Cooling is possible up to an outdoor temperature of +52°C. This allows for a wide range of applications and system use in the coldest regions and for the most demanding technologies 24/7!
• Highest Efficiency & Lowest Consumption: Very high efficiency and low energy consumption result in the lowest operating costs. SEER values up to 9.40 and SCOP up to 5.51 are achieved thanks to the unparalleled TOSHIBA SUPER Digital Inverter technology and specially developed components by TOSHIBA.

BIG Digital Inverter Single Fan

The BIG Digital Inverter Single Fan series is a phenomenon that combines a very small installation footprint with TOSHIBA's extensive know-how. It excels in high performance, efficiency, reliability, and versatile use. It guarantees energy savings and perfect comfort year-round.

• High Efficiency & Energy Saving: First-class EER/COP values thanks to the exclusive TOSHIBA Twin Rotary compressor. Exceptional performance and very compact dimensions: two models with cooling/heating capacities of 19.0/22.5 kW and 22.4/25.0 kW.
• Wide Application Possibilities: Allows connection of RAV-combination 2, 3, or up to 4 indoor units (all always of the same type and capacity). Compatible with most indoor units: 4-way cassette standard, 60x60 SLIM cassette, low ducted, standard ducted, high-static ducted, wall-mounted, and ceiling-suspended units.
• Operating Temperature Range: Heating is possible down to an outdoor temperature of -27°C, ensuring a pleasant room temperature even on frosty nights. Cooling is possible up to an outdoor temperature of +46°C. By preventing wind influence, the unit cools even at lower temperatures without any limitations, making it suitable for full year-round operation. When installed, the total pipe length of up to 100 m and a max height difference of up to 30 m can be utilized.

RAV – Indoor Units

Here is an overview of the RAV indoor unit types:

• Wall-mounted Units: Available in capacities from 2.5 to 8.0 kW and 10 kW.
• Ceiling Suspended Units: Provide natural airflow.
• Cassette Units: Perfect air distribution, low installation height. Available in SLIM 60x60, SMART 4-way, STANDARD 4-way, and FLAT 1-way models.
• Ducted/Concealed Units: For when the air conditioning should be invisible. Available in Low (NÍZKÉ) and Standard (STANDARD) versions.
• High Static Pressure Ducted Units: For large rooms requiring high airflow.
• Cabinet Units: Space-saving and easy installation.
• Special Solutions: DX-Kit NEXT for VZT unit heat exchanger control, and Door Curtains to reduce air exchange.

Measurement Conditions: The document specifies Eurovent measurement conditions for cooling and heating, including outdoor and indoor temperatures, and humidity levels. Acoustic pressure levels are measured at 1m distance from the unit.

RAV – Combinations

Toshiba offers various combination options for its RAV systems:

• TWIN: For Digital-/Super Digital-/Digital Inverter NEXT series, combining one outdoor unit with two indoor units.
• TRIPLE: For Digital-/Super Digital-/Digital Inverter NEXT series, combining one outdoor unit with three indoor units.
• TWIN & TRIPLE (BIG Digital Inverter Single Fan): Configurations for the BIG Digital Inverter Single Fan series, allowing combinations with two or three indoor units.
• DOUBLE-TWIN (BIG Digital Inverter Single Fan): For the BIG Digital Inverter Single Fan series, allowing combinations with four indoor units.

Note: Basic overview – complete combinations and parameters can be found in the respective technical materials.

RAV – Outdoor Units

Toshiba offers several series of outdoor units:

• CLASSIC DIGITAL INVERTER: Economical, professional air conditioning with cooling capacities from 5.0 to 13.0 kW and heating capacities from 5.3 to 16.0 kW. Compatible with Wall-mounted, Cassette STANDARD 4-way, and Ducted STANDARD indoor units. Uses R32 refrigerant, which is more environmentally friendly and efficient than R410A.
• NEXT Digital Inverter: Next generation units with cooling capacities from 2.5 to 14.0 kW and heating capacities from 3.4 to 16.0 kW. Features compact design, high efficiency, and new functions for easy installation and commissioning. Offers 3 quiet operation modes.
• SUPER Digital Inverter: High efficiency, longer pipe runs, and higher height differences. Cooling capacities from 5.3 to 14.0 kW and heating capacities from 5.6 to 16.0 kW. Supports RAV Split 1:1 or RAV-Combinations with up to 3 indoor units.
• BIG Digital Inverter Single Fan: Designed for higher power, compact dimensions, longer pipe runs, and versatile use. Cooling capacities from 19.0 to 22.5 kW and heating capacities from 22.4 to 24.0 kW. Supports RAV Split 1:1 or RAV Combinations with up to 4 indoor units.

Which Refrigerants Does TOSHIBA Use? The document highlights the use of R32 refrigerant, noting its lower GWP (675) compared to R410A (2088) and its higher efficiency, allowing for approximately 60% higher output with the same charge.

Control and Management

Toshiba offers a comprehensive range of control solutions to meet any requirement, ensuring comfort and convenience. These include local controls, central management systems, and integration into Building Management Systems (BMS).

• External Control and Monitoring: Toshiba provides a wide spectrum of additional modules for indoor and outdoor units, enabling fault reporting, noise/power limitation, and 100% operational redundancy. Features include refrigerant leak detection, additional modules and interfaces, CN connectors for control, and redundancy modules.
• Central Control and Management: For larger air conditioning systems, central control elements allow for monitoring and management from a single location, such as a reception or central control room. Central control units can manage up to 2048 indoor units with cable lengths up to 2,000 meters.
• Interfaces for Higher Control Systems: TOSHIBA air conditioning systems can be integrated with common building control systems like BACnet®, LonWorks®, KNX®, or Modbus®.
• Local Control and Management: This includes IR remote controls, wired controllers (with various functionalities like weekly timers and touch screens), and remote control via WiFi and mobile applications.

Local Control and Management Details

• Simplified Wired Controller: Ideal for hotel applications.
• Standard Wired Controller: Controls all indoor unit functions, with ON/OFF timer up to 168 hours.
• Compact Wired Controller: A smaller version of the standard wired controller.
• Wired Controller with Weekly Timer: Allows for programmed operation with 8 events per day and up to 6 parameter changes.
• Local Touch Lite Controller: A compact local controller with a touchscreen interface, customizable with background images and logos.
• External Temperature Sensor: Used where standard sensors in the unit or wired controller are insufficient for precise temperature measurement.
• IR Remote Control Kits: Offer similar functionality to wired controllers but without cables. Can be installed in the unit's casing or as a universal solution.
• Advanced Wired Controller with Extended Functions: Supports Bluetooth connectivity.
• Interface Modules: Includes modules for KNX, remote on/off, IO module for control and status reporting, reporting/external command module, Analog-Interface, Modbus interface, BACnet 1:1 interface, and WiFi 1:1 interface for smartphone control.

Central Control and Management Details

• Touch Screen Controller: Includes energy consumption measurement, controls up to 512 indoor units, features a 12.1" touchscreen, and allows PC access for monitoring and billing. Requires TCS Net Relay Interface.
• Smart Manager TOUCH: With consumption calculation/measurement, controls up to 256 indoor units via an intuitive 7" color touchscreen.
• Central Controller: Compact central controller for managing up to 64 indoor units, with the option to connect a weekly program.
• Interfaces for Higher Control Systems: Details modules for MODbus, KNX, Coolmaster, LonWorks, BACnet, and Analog-Interface, specifying the number of units they can control and their connectivity.

External Control and Monitoring Details

• Output Limitation Module (Noise/Night Mode): For RAV outdoor units (NEXT-DI, CLASSIC-DI, SUPER-DI 1-phase). Input for noise limitation (night mode) and max power (0%/50%/75%). Output for operation signal and compressor status.
• Connectors for Output Limitation (Noise/Night Mode): For SUPER-DI 3-phase units. Similar functionality to the above module.
• CN Connectors for Indoor Unit Connection: Various functions, inputs, and outputs, including potential-free contacts for reporting operational status or external commands.
• Operation Alternation and Backup Module for Multiple Units: Switches operation between two indoor units (or groups) in case of failure. Distributes operating hours evenly, starts the second system upon temperature increase. Features "Plug & Play", LAN-Port, and status monitoring via the internet.

Efficiency Assessment

The efficiency and operational economy of air conditioning units and heat pumps are expressed by efficiency coefficients.

The cooling or heating efficiency coefficient is the ratio of the produced cooling or heating output to the electrical power consumed to obtain or transfer the thermal power. The higher this coefficient, the higher the unit's energy efficiency and lower its consumption.

A COP value of 4.0 means that the unit, when operating at nominal power with 1 kW of electrical input, produces up to 4 kW of heating output – i.e., four times the input.

However, the COP coefficient has minimal indicative value for the unit's quality, as it only describes behavior at maximum 100% output.

• EER (Energy Efficiency Ratio): Cooling efficiency coefficient.
• COP (Coefficient Of Performance): Heating efficiency coefficient.
• SEER (Seasonal Energy Efficiency Ratio): Annual cooling efficiency coefficient (for the entire year). Extended by seasonal factors. Measured at outdoor temperatures of +20°C, +25°C, +30°C, and +35°C.
• SCOP (Seasonal Coefficient Of Performance): Annual heating efficiency coefficient (for the entire year). Extended by seasonal factors. Measured at outdoor temperatures of +12°C, +7°C, +2°C, and -7°C.

The annual efficiency coefficient for air conditioners and heat pumps is called SEER for cooling mode and SCOP for heating mode, and it accounts for variations in outdoor temperatures, thus reflecting different operational efficiencies throughout the year.

TOSHIBA Product Lines

Beyond the Light Business series, Toshiba offers other solutions:

• HOME: For residential use, offering comfort and reliability for your home or office. Capacities from 2-10 kW. Features advanced air filtration for year-round comfort, quiet operation, and low energy consumption.
• ESTIA: Air-to-water heat pumps for heating, providing future-proof heating solutions. Capacities from 4-14 kW. High quality, excellent performance, and significant savings on heating and hot water costs.

Toshiba Competence Across All Areas

• LIGHT BUSINESS: For shops, servers, and industry, offering reliability and comfort with capacities from 2.5 to 22.5 kW. Ideal for continuous 24/7 operation and adaptable to various space requirements.
• BUSINESS: Air conditioning systems for medium and large buildings, from 12.1 to 335 kW. Suitable for large-scale offices, shopping centers, and hotels, supporting extensive pipe runs and numerous indoor units. 3-pipe systems allow simultaneous heating and cooling.
• CHILLER: Water cooling and heating solutions at the highest quality level, from 150 kW to 25.6 MW. Block chillers represent a new dimension in cooling and heating, used when direct expansion systems reach their limits.

Expertise and Personal Approach

Toshiba's network of partners provides expert advice, planning, installation, and maintenance for Toshiba air conditioning and heat pump systems. Toshiba offers flexible solutions for every situation, whether for homes, commercial spaces, or industrial applications.

For more information, visit the Toshiba air conditioning website.