Elta Air Proving Switch 149-AS APK900/004 ● Easy to install

● Easy to install

SHEV retriggering function and smoke detector remote reset

or similar from a building management system

therefore if Call Points are being used then these should be wired onto the zone first

The Eltadrive range of inverters have been designed encompassing the latest technology and combining robustness with reliability

Elta Air Proving Switch 149-AS APK900/004 ● Easy to installAir Proving Switch Used to monitor airflow within a duct and provides a switched output on detection or loss of airflow 220 250VAC 50Hz 16A (6) Contact Min setting: Cut In 2. 5m s, Cut Out 1m s Max Setting: Cut In 9. 2m s, Cut Out 8m s IP65 Protection