Toshiba SMMS-u VRF Series Overview

The Toshiba SMMS-u VRF series represents the latest generation of Toshiba’s variable refrigerant flow technology.

Designed for large commercial and mixed-use buildings, it offers exceptional efficiency, installation flexibility, and intelligent control.
Building on decades of Japanese engineering excellence, the SMMS-u series delivers precision climate control tailored to the UK’s demanding building standards.

Performance and Capacity

The SMMS-u system features outdoor unit capacities from 8 HP to 54 HP, with modular connection up to 150 HP.
Each system can operate up to 64 indoor units, offering full independent control.
Refrigerant pipe length reaches 1 200 m total, with 110 m vertical separation, ideal for high-rise projects.

Energy Efficiency and Technology

Using twin rotary DC inverter compressors and a newly optimised heat exchanger design, the SMMS-u achieves industry-leading efficiency:

• SEER: 8.6

• SCOP: 5.4

• Energy Class: A+++

The system reduces annual energy consumption by up to 42 % compared with traditional split systems.
Its wide operating range (–25 °C to +52 °C) ensures reliable heating and cooling year-round.

Refrigerant and Environmental Compliance

SMMS-u operates with R32 refrigerant, which reduces global warming potential by 68 % versus R410A.
All components comply with EU EcoDesign and F-Gas Phase-Down directives.

Smart Control and Connectivity

Toshiba’s advanced control network allows seamless integration with BMS platforms via BACnet, Modbus, or LonWorks.
Users can monitor up to 2 560 indoor units through the TU2C-LINK interface or Toshiba’s Wave Tool App.
Cloud connectivity enables remote commissioning, diagnostics, and energy monitoring.

Installation Flexibility

The outdoor units feature compact dimensions (1 690 mm height, 930 mm depth) and low weight, simplifying crane or rooftop transport.
Pipework connection options include top, side, or rear outlet, giving designers freedom to adapt layouts to site conditions.

Quiet Operation

Outdoor sound levels start from 50 dB(A), while indoor units operate between 22–30 dB(A).
Advanced acoustic insulation and adaptive fan control minimise noise, essential for offices and hotels.

Heat Recovery Option

The SHRM-e variant enables simultaneous heating and cooling, transferring heat between zones for up to 40 % energy savings in mixed-use buildings.

Conclusion

The Toshiba SMMS-u VRF system combines top-tier efficiency, modular scalability, and advanced digital control.
It provides architects, engineers, and building owners with a flexible HVAC platform that meets both environmental targets and comfort expectations across diverse UK commercial projects.