Refrigerant Leak Detection Solutions

Toshiba have introduced a suite of tools that are able to provide fully integrated controls systems for Toshiba VRF air conditioning. As a result our leak detection systems comply with BSEN378 and offer real time maintenance and monitoring for the requirements of the F-Gas regulation by providing the ability to identify any potential system leaks at an early stage. Preventing and reducing the amount of R410A leakage to atmosphere ensures that systems run at peak energy efficient performance levels.

The leak detection system works via sensors which detect change in the refrigerant pressure, temperature or detector. In the event of activation systems can be shut down, or alternatively individual indoor units can be isolated to allow the rest of the system to continue operating.

The system is made of a combination of the items below: -


Leak Detection Panel for remote indication of fault/alarm at supervisory level

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Audio and visual alarm indicator

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Leak Detection Panel

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Remote room indicator and alarm indicator for RBC-AIP3 Leak Detection Panel

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RBC-RCS1, RBC-RCS2, RBC-RCS Special             RBC-RD3 Leak Detection Sensors

Single zone recessed leak detection sensor with a range of facia plates or alternative surface mounted type

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Continuous monitoring of Digital or Super Digital Inverter Split System air conditioning circuit to measure gradual or major refrigerant loss in compliance with BS EN378 & BREEAM

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Continuous monitoring of VRF air conditioning circuits to measure gradual or major refrigerant loss in compliance with BS EN378 & BREEAM

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Leak Detection Panel for small Single Room monitoring and isolation in compliance with BS EN378 and maintaining continuous operation of unaffected air conditioning units

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Room indicator for use with RBC-RP1

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Refrigerant Monitoring and Detection

Toshiba market leading Refrigerant Monitoring and Detection Solutions

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TCB-LD2UK Refrigerant Leak Detection

As VRF systems become larger, supplying multiple indoor units, the refrigerant volume that flows within the system will increase. In the unlikely event of a refrigerant leak, it is possible that, if the room is small enough, the concentration level of refrigerant inside a room/office could become harmful to the occupant. Previously Toshiba stipulated that if the concentration level of the refrigerant could exceed 0.44kg/m3 that an opening be created with an adjacent room, or to fit a locally supplied mechanical ventilation device, combined with a gas leak detection device. The new “Refrigerant Leak Detection and Pump Back Products” will provide a solution to this potential issue, providing both an indication of a refrigerant leak (in accordance with EN378, where the refrigerant concentration level exceeds 0.44kg/m3) and the mechanical isolation and pump back of refrigerant from the indoor side to the outdoor unit. This new system can incorporate both an external and internal sensor monitoring systems to determine the level of refrigerant in the atmosphere and flowing within the system itself. All refrigerant leak detection and pump back products will be supplied CE certified.

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View our Leak Detection Systems video