ZP3-ECU Maintenance Manual
Doc. No. 503-0800ZE-M-01
Issue 1 (01/08/2006)
Page 5
Quarterly Maintenance
Extinguishing Control Unit
WARNING: EXTREME CAUTION MUST BE TAKEN WHEN WIRING OR UNWIRING THE EXTINGUISHING
CONTROL UNIT WHEN IT IS LIVE.
Inspect the actuation voltage as follows:
1.
Turn the Lock off key to "LOCKOFF". Check that the locked-off LED’s have illuminated.
2.
Replace the transit pin at the Extinguishing Cylinder (if applicable), and remove the actuator
connections from terminal block TB3 terminals 7 and 8 marked “release out” on the ECU
display board.
3.
Connect an 18 ohm, 5 W resistor across terminals 7 and 8 of terminal block TB3. Reset the
control panel and check that no fault is indicated.
4.
Turn the Lockoff/Reset key to "RESET". Check that the Lock-off LED’s extinguish.
5.
Switch the Auto/Manual key switch and check that the indicating LED’s indicate
appropriately. Leave the switch in AUTO.
6.
Prepare the building for a test alarm.
7.
Connect a voltmeter across the 18 ohm resistor.
8.
Activate one of the inputs mapped to activate the Extinguishing Control Unit (use a Ziton Z-
SDT2 to activate a smoke sensor if required).
9.
Check that the monitored Fire Bell output on terminal block TB1 terminal 4 and 5 is activated
(if measuring with a meter, terminal 1 is +24 V with respect to terminal 2)
10.
Check that the red Fire LED’s on the front fascia of the Extinguishing Control Unit illuminate.
11.
Wait for at least forty five (45) seconds and make sure that a 24 V output is NOT detected
across the actuator terminals 7 and 8.
12.
Silence the Fire Bell output by pressing the "Silence" pushbutton on the front fascia of the
Extinguishing Control Unit. Check that the bell output responds accordingly.
13.
Activate the second input mapped to activate the Extinguishing Control Unit (use a Ziton Z-
SDT2 to activate a smoke sensor if required).
14.
Check that the Fire Bell output is again activated.
15.
Wait 45 seconds and then check that a 24 V output is detected across actuator terminals 7
and 8.
16.
Check that the "Extinguishant Discharged" LED on the front fascia of the Extinguishing Control
Unit is illuminated.
17.
Check that the "Extinguishant Discharged Siren" output on terminal block TB1 terminals 6 and
7 is activated (measure 24 V at terminal 6 with respect to 7).
18.
Check that the Main Fire Control Panel reports the "Discharge" condition.
19.
Turn the "Lockoff" key switch on the front fascia and check that the "Locked off" LED’s
illuminate. Check that the Extinguisher Discharged Siren silences.
20.
Reset the unit by turning the Lockoff/Reset to RESET check that the Lockoff LED’s go off.
21.
Re-activate the extinguishing unit with a double knock as above.
22.
Wait ten seconds then press the hold off more time button.
23.
Confirm that the delay time after releasing the hold off button is the delay time as configured.
The hold off button resets the delay time to the full delay time.
24.
Clean the triggered devices, reset the panel and then reset the extinguishing control unit with
the locked off key.
