Dimensions - Helios RMK Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
CHAPTER 6
MAINTENANCE
m
NOTE
Duct smoke detector – RMK

5.1 Dimensions

Fig.6
Dimensions in mm
6.0 Maintenance information
m The unit must be fully isolated from the mains power supply and secured
against being switched on again before all cleaning and maintenance work!
Servicing and maintenance work must be carried out in accordance with applica-
ble standards and guidelines and the regulations of the respective country!
Helios stipulates the following:
– Servicing and inspection work must be carried out regularly and only by trained spe-
cialist personnel (electricians).
– Functional and visual inspections must be carried out at least once annually in accor-
dance with the maintenance instructions and according to the following criteria:
1. Visual inspection of mounting.
2. Visual inspection of duct smoke detector (damage and contamination).
3. Visual inspection of duct smoke detector labelling.
4. Inspection of the monitoring area (free space around the duct smoke detector is not
restricted).
5. Triggering the detector with test gas (aerosol).
6. Inspection of alarm LED and the alarm channel from the detector to the evaluation unit.
If the annual inspection results in a faultless evaluation of functionality, the duct smoke
detector can remain in service up to max. eight years. The duct smoke detector must be
replaced after this service time.
Smoke detectors which are clearly heavily contaminated or mechanically damaged must
be immediately replaced.
Earlier replacement or servicing and maintenance may be necessary in particularly
dusty environments!
6.1 Maintenance
The duct smoke detector design guarantees simple maintenance/inspection without
tools and without opening inspection covers.
In the event of a service, the casing cover can be opened with a quick-release fastener.
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