Zonecheck 450 - Key-switch Operation

The interconnect points should not be wired in a multi- occupancy sprinkler
installation. In a multi- occupancy premises where tenants have fire alarm panels
interfaced with the fire protection system, this key-switch should be wired for total
independence.
Note: Determine a suitable low level accessible location to fix the key-switch within
5m (commissioning cable length) of the Zonecheck.
Single Occupier Only
A single occupier, when the Zonecheck units are wired in parallel via interconnect,
can test all of the units by turning the key-switch to group test.
Single occupier may exclude the Zonecheck key-switch and wire a relay circuit to
activate each Zonecheck from a central control panel.
Pump-L
Pump-N
AC-N
AC-L
GND
Interconnect -
Interconnect +
WF Input
WF Input
Pump
Power
Supply
Flow-
switch
Typical Key-switch wiring layout
Key-switch
07