IK-E339-001E 23
PK8 – general fault relay. During the control panel normal operation the relay is switched on. It
switches over at the moment when a fault or voltage decrease occurs. A typical application of
the relay is the fault signal transmission to the monitoring centre.
External device power supply output: Two pairs of terminals supplying 24 V DC voltage are located
on the terminal board and they are designed for power supply of the external devices that are
activated e.g. from relay outputs. The positive terminal is protected with a 500 mA monitored melt
fuse.
NOTE:
In case external devices draw current also during quiescent mode, the operation time of the control
panel which is supplied from internal batteries during a mains (basic) power supply outage, will
decrease proportionally to the current consumption from the control panel.
Signal transmission. Auxiliary devices controlling. The control panel is able to control protecting
devices or transfer fire alarm signals to a monitoring station using the relay outputs that are
activated during the fire alarm. The relays operation may be disabled with the help of the F.03
DISABLEMENT function when it is necessary. The zone relays can be programmed for actuation
dependent on various occurrences and zones, using the F.08 RELAY PROGRAMMING function. All
relays are furnished with a possibility to switch the contacts over for opened and closed (NO or NC)
with the help of jumpers.
10 MAINTENANCE
10.1 GENERAL RULES
Fire alarm systems, as safety installations, must be continuously kept at full efficiency, therefore they
require proper maintenance. The premises user is obliged to ensure the installation maintenance,
best of all by signing an appropriate agreement with a maintenance technician.
The maintenance consists in carrying out periodical inspections and removal of possible faults. The
maintenance technician should thoroughly study this manual. He should know exactly the operating
principles of the control panel and interoperating manual and automatic fire warning devices, as well
as other devices connected to the control panel. It is highly recommended to pass a training
organized by the manufacturer that covers fire alarm systems application, installation and operation.
The maintenance technician should also know the premises territory, displacement of the system,
detection line routes, arrangement of fire detectors and manual call points, and environmental
conditions that may influence the devices work.
10.2 PERIODICAL TESTING
The periodical checks consist in operation tests of all detectors and fire manual call points installed in
the detection lines, the control panel and its output circuits: the lines that control external acoustic
signalling devices or fire-fighting devices, as well as the protecting device monitoring line and the
monitoring system circuits. The periodical tests should be executed in accordance PKN-CEN/TS 54-14:
2006 standard.
Periodical testing frequency: the manufacturer recommends executing the periodical tests at least
once per year. Nevertheless, the system owner, in agreement with the system designer and the
maintenance technician, should increase the test frequency, if the system operating conditions are
hard (high humidity, corrosion environment, dusting, etc.).
The periodical testing scope consists in:
- event memory readout (using a computer), in order to check the control panel attending
personnel appropriate work and possible signals indicated by the control panel;
- inspection (testing) of every signalling diode and acoustic signalling device of the control
panel;
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