ZP3-ECU Maintenance Manual
Doc. No. 503-0800ZE-M-01
Issue 1 (01/08/2006)
Page 3
Repair services should be available within 24 hours. For premises in continuous use, an engineer
should be on call at all times. The servicing company should have engineers trained in servicing
Ziton equipment. The owner of the fire alarm system is responsible for ensuring that the
company contracted is competent to carry out the work.
Fault Finding
Faults that occur on the Extinguishing Control Unit or in building wiring are reported by the
ZP3/ZP5 Control Panel. The fault LED on the Extinguishing Control Unit illuminates. When a fault
occurs, it should be dealt with as quickly as possible. In some cases the operator will be able to
rectify the fault, but usually a call will be made to the servicing company.
A comprehensive guide to faults that can be raised by the panel is provided under “Fault Finding -
Extinguishing Control Unit Faults” on page 11. Information is also given as to the appropriate
actions to take in each case.
Maintenance Pre-requisites
Before performing any maintenance on the Extinguishing Control System, make sure that:
•
Small hand tools are available for testing, connecting, disconnection, etc.
•
A good multimeter (preferably digital) is available.
•
The available drawings indicate correct device positions, device addresses and types with all
relevant wiring runs.
•
A record is available of how the fire system has been configured. The system specification
should provide a detailed description of all aspects of the extinguishing system such as:
•
Assumptions about the environment in which the fire system is to operate.
•
The model of the control panel to which the extinguishing unit is connected.
•
The version number of panel software used.
•
Type of extinguishing cylinders/equipment and extinguishant details.
•
Physical layout of lines and devices. The type and the address applicable to each
extinguishing control unit should be recorded.
•
The organisation of devices into logical zones as affects the extinguishing system.
•
Cause and affect rules programmed into the panel (input/output mappings), which affect
the extinguishing control unit.
•
Any custom controls or features.
•
Field Wiring drawings for the system.
The system specification is the blueprint for how the system should be configured and how it
should perform. The system specification is essential for when the system is extensively tested
and checked during servicing. Without such a specification there is no final arbitration as to what
is the correct behaviour of the system.
It is important to keep the specification up-to-date. Whenever changes are made to the system
the specification should be updated to reflect those changes.
