Operation
GRM
17
If all prerequisites are met, the device is ready for operation.
1.
Switch on the power supply via the on-site mains fuse.
2.
Perfom a function test, refer to chapter 6.6, page 17.
6.6 Function
test
At the smoke sensor
Depress the test button “TEST/RESET” for three seconds until
the alarm sounds.
1 Test button “TEST/RESET”
7 Operation
After the mains supply has been switched on, the connected sensors
will be ready after approx. 2 minutes of warm-up time.
8 Maintenance
8.1 Maintenance
intervals
Table 3: Maintenance intervals
When
Activity
2 x per annum
Vacuum clean the housings of the
sensors carefully.
8.2 Maintenance
activities
Replacing the mains fuse F1
Mains voltage is interrupted and cannot be switched on by acci-
dent.
1.
Open control unit, refer to chapter 6.3, page 14.
2.
Open up the black, vertical safety bracket using a screwdriver:
Press down and turn by ¼ turn in anti-clockwise direction.
3. Remove
insert.
4.
Replace mains fuse F1, refer to table 2, page 10.
5.
Place insert back into the safety bracket and close with a
screwdriver: Press down and turn by ¼ turn in clockwise direc-
tion.
6.
Close control unit, refer to chapter 6.3, page 15.
7.
Switch on the mains voltage.
