
Chapter 1: Maintenance
4 ZP3-ECU Extinguishing Control Unit Maintenance Manual
Log book
Every extinguishing system should have a log book associated with it. This log
book is used to record events raised by the ECU or events concerning the
extinguishing system as reported by the connected fire alarm control panel.
The following information should be recorded in the log book:
• A description of each event along with the name of the responsible person on
duty at the time of the event.
• Brief details of any servicing arrangements arising from events.
• Dates and times of all extinguishant discharges, whatever the cause. The
cause of the discharge should be noted, etc.
• Dates and times of all alarms. The cause of the alarm should be noted. If the
cause is not known then this should be stated. The devices activated and
their locations should be recorded. Any actions taken should also be
recorded.
• Dates, times, and types of all defects and faults and the corrective actions
taken.
• Dates, times, and types of all tests undertaken.
• Dates, times, and types of all servicing undertaken, whether routine or for
corrective purposes.
• Dates and times of all periods of device, zone, or system isolation, for
whatever purpose.
• Dates of all changes and upgrades to the system along with the names of
those that carried them out.
Note: The system specification should also be updated.
Notification and preparation
It is critical that the relevant personnel are notified about any testing BEFORE
starting tests.
Occupants of the building and anyone receiving remote alarm signals (such as
the fire department) must be informed of when the test is to begin and when it is
over. No alarms should be sounded before notifying these personnel.
Caution: All systems that were disconnected for testing/maintenance purposes
MUST be reconnected at the end of testing.