On detecting the presence of water the GWD will go into an alarm status sounding a buzzer and illuminating an LED relative to the zone where the leak is. When in alarm the relay will changeover allowing onward signalling of the event and mechanical switching of valves and pumps. Two common alarm outputs are standard however individual output relays can be used to perform a function specific to each zone.
Typical applications include archive rooms, comms rooms, computer rooms, electrical switch rooms, boiler houses, plant rooms and large data centres.
The GWD multizone system has been successfully installed in large data centres where there is a presence of chilled water.