SPARES & ACCESSORIES FANS Future-proof refrigerant leak detectors
Both the AIM Act and the F-Gas Regulation mandate refrigerant leak detection installation for larger refrigeration systems. In light of the dynamics of the market and the development of new, lower-GWP refrigerants, a common question when businesses are installing new refrigerant leak detection systems is, will they be usable in the future when I need to change my refrigerant out for a lower GWP alternative? Fortunately, if the question is asked of a forward-thinking
refrigerant gas detector manufacturer, the answer can be a resounding ‘yes!’. Intelligent gas detection design, by those with a knowledge and focus on the shifting requirements of their customers, mean that this can be achieved in two ways. Broadband sensor confi guration: there are refrigerant gas detectors on the market which can use a single sensor confi guration to accurately detect multiple gases. Extensive testing and calibration work allows the development of diff erent calibration algorithms and curves to be applied to a single sensor. In confi guring the gas detector in which the sensor is deployed, the user can select which specifi c gas they are using, and the appropriate calibration factors are then electronically applied to provide accurate readings for the target gas. In practice, that means when a refrigeration system is changed, or a drop-in replacement gas
is used, there is the possibility to continue using the same refrigerant leak detection system with just a simple change of confi guration. Pre-calibrated smart sensors: in some cases, if the
refrigerant being used is changed then it is necessary to change the sensor which is used for leak detection. This can be because the new gas has a radically diff erent response on the sensor comparative to the old gas, or because the new gas requires a fundamentally diff erent technology for detection – for example, the change of a HFC gas, being detected using semiconductor sensors, for a CO2
system would require a new sensor. This is because CO2 cannot be detected with semiconductor sensors, and an
infrared sensor would be required. Using smart sensor modules, some refrigerant gas detectors can accommodate this change. This is done by simply changing the sensor module on the gas detector, with the main electronics of the gas detector able to identify the new sensor without no need for changing the whole system or altering any of the power and communications already installed and integrated.
In conclusion, the changing dynamics of the refrigeration market will, in the coming years, see the refrigerants used changed in many installations. With thoughtful selection now, this does not mean that the refrigeration gas detection system will need to be replaced but simply modifi ed instead.
The
overarching objective of this
refrigeration
program is to signifi cantly decrease HFC production and
consumption, aiming for an 85% reduction from
baseline
levels by the year 2036.
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