1. System Overview
The Clymac ZM2 system is a microprocessor based fire detection and alarm system. The control
panel accepts signals from call points, smoke sensors, heat sensors and interface units. It also has
outputs for audible and visual alarm devices together with auxiliary outputs for plant shutdown
control.
1.1 Addressable devices
Smoke detectors, heat detectors, call points and interface units are all “addressable” devices.
This means that the control panel is able to individually identify a fire or fault alarm from each
device. Each device is therefore allocated a number or “address” when the system is
commissioned. Each address is then programmed with one line of ten characters and a second
line of 16 characters for the text label, which will in turn be displayed on the control panel’s text
display in the event of an alarm.
An addressable system therefore enables the exact source of the incident to be identified quickly
reducing the search time and improving the chances of containing the incident.
1.2 Analogue detection
The ZM2 system utilises analogue detection techniques to detect fire and fault incidents. An
analogue system is a very accurate method of detection and monitors the rate at which the
activity within a detector's sensing chamber changes. An analogue detection system therefore
reduces the occurrence of false alarms and increases detection performance of a real fire. It will
also identify faulty and dirty detectors thus reducing the cost of maintenance activities.
1.3 Controls and indications
All of the fire and fault occurrences are displayed on the control panel’s liquid crystal display
together with the text label when relevant
1.4 Continuous monitoring
The ZM2 system provides the user with total peace of mind. All of the control panel functions
and system devices are continuously monitored for their correct operation.
The cable used to interconnect all of the detectors, call points, interface units and sounders is also
continuously monitored for failure.