Shutdown Procedure - Honeywell ACM 150 Manual To Installation, Operation, And Maintenance

ACM 150
NOTE
Simulated alarms will not be logged and will not trigger the relays of the
ACM 150 monitor. For triggering the relays manually, go to the Relay screen
in Manual Mode. As soon as the ACM 150 monitor starts scanning again in
Automatic Mode, all simulated alarms will be cleared.

Shutdown Procedure

Emergency shut down
Immediately turn off the Main Power Switch located on top of the ACM 150 monitor
to disconnect power to all of the internal circuits.
Figure 62. Main power switch
Planned shut down
Line power
• Be aware of any impact that shutting down the ACM 150 monitor may have on
your facility and prepare for it, e.g. 'fail-safe' relays that activate alarms on loss
of power or shut off gases automatically when this system is not on-line. Use
appropriate precautions, to avoid unscheduled interruptions of production.
• Turn off the Main Power Switch,
monitor.
• Follow Lockout / Tagout Procedure
or relocation.
Utility gases
The ACM 150 monitor uses compressed air (global) and nitrogen. The user is
required to provide an external shut-off valve located nearby (refer to
and exhaust piping). These valves can remain open during shut down, provided
these utility gases and the components they supply remain connected.
Figure 62, located on top of the ACM 150
when shutting down the monitor for service
98
Utility gases