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Translation from original instructions
2.2.11 Refrigerant leak detector
A refrigerant leak detector with semiconductor sensor can be installed on the units.
This device allows immediate detection of refrigerant leaks, with a warning or with stopping of the unit in pump down, de-
pending on how it is managed.
The installation of the device is in line with European F-GAS regulations and USA ASHRAE regulations.
Local regulations may require different calibration values with specific sensor checking and calibration procedures.
The main regulations require a check with tests at least once a year.
Check your local regulations on calibration and the testing requirements.
The alarm contact opens for 5 seconds any time power is cut out and then restored to the sensor. Set a
suitable delay in the warning message. Up to 3 minutes are required for the sensor to complete the start-up
cycle.
The detector must be tested and/or calibrated by a qualified technician.
To test and calibrate the device, qualified operators must know the rules and regulations laid down by the industrial sector
and/or by the country of installation.
In the event of a significant refrigerant leak with prolonged exposure, check the sensor and, if necessary,
replace the sensing element.
In any case, the sensing element of the device has a lifetime after which it must be replaced.
For replacement of the sensing device and for other accessories needed for calibration, refer to your custo-
mer service centre.
