March 2021
Page 55 of 143
59812-K007 Rev 17
Business Confidential
2.11.3
Backup Alarm Test
The Backup Alarm is a hard-wired link from each Detector installed on a Control Unit. This facility will
allow any D
and
operate the Backup Alarm Relay.
The integrity of the Backup Alarm signal between the Control Unit and the Detector a Backup Alarm Test
should be performed.
To test the Backup Alarm
Test
Figure 75
Test Menu Engineers Level
After a short time the result of the test is displayed. No faults should be indicated.
Figure 76
Test Menu Backup Alarm OK screen
. You will be returned to Figure 71
2.11.4
Detector Smoke Alarm Test
A smoke test should be performed on each detector to ensure that the correct response is obtained.
One of two methods may be used to conduct the Smoke Alarm Test.
Note: Isolation of the output relays (Pre-Alarm and Slowdown/Shutdown Relays) is required
before commencing the smoke alarm test, see sections 4.1.2 and 4.1.3. If the Backup Alarm
Relay is connected to the engine slowdown or shutdown system this should be disconnected.
Warning: Carrying out this test without isolation or disconnection of the output relays will cause
the engine slowdown or shutdown system to operate.
Method 1 Using a Wick
a.
Cut a length of wick approximately 30 mm long. Assemble the smoke tester by pushing the wick
into the wick holder fitted with the pipette bulb. Press the nylon pipe into the pipe connector
(refer to Figure 77).
