1592038710 Gas Leak Detector Modbus GB 01.12.2016
GDS41M-GDS66M-GDI41M-GDI66M 9/28
3.2.4
AIR CONDITIONING (Direct System VRF/VRV)
For compliance with EN378, at least one detector shall be installed in each occupied space being
considered and the location of detectors shall be chosen in relation to the refrigerant and they shall
be located where the refrigerant from the leak will collect.
In this case refrigerants are heavier than air and detectors should have their sensors mounted low,
e.g., at less than bed height in the case of an hotel or other similar Category Class A spaces.
Ceilings or other voids if not sealed are part of the occupied space.
Do Mount In-Room Sensors
Don’t Mount Sensors
… at less than the normal heights of the
occupants.
E.g., in a hotel room this is less than bed
height (between 200 and 500 mm off the
floor).
…under mirrors.
… away from drafts and heat sources like
radiators, etc.
…at vanity units.
… to avoid sources of steam.
…in or near bathrooms.
Monitoring ceiling voids in a hotel room would not strictly comply with EN378
3.2.5
REMOTE SENSOR HEAD INSTALLATION
The remote sensor is mounted in an electrical back box (44 mm) deep to which the vented
faceplate is fitted.
Remove the connector from the sensor PCB to feed the cable through the housing.
Immediately refit the connector to the sensor board in the back of the box.
The GDS/GDI and remote sensor must be kept together as they are calibrated together
and are a matched pair.
To clean, the faceplate should be lightly dusted.
IMPORTANT:
Do not spray the device with cleaning or polishing aerosols
To avoid component mix-up, do not remove sensor boards from multiple units at the
same time. Alternatively, label them, or match the serial number on the main PCB and
the remote sensor PCB when reinstalling.