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Wiring
Always disconnect the power supply to do the wiring.
The power circuit should be equipped with a switch for its disconnection of at least 2 A, 230 V, situated
near the appliance. The power supply cable should be H05VV-F or H05V-K type. The gauge will depend
on local regulations, but should in no case be less than 1 mm².
Cables for wiring the relay contact should have an adequate section depending on the unit to be connected.
AKO recommends the use of shielded cable for the wiring of the detectors.
Ensure the batteries are connected before switching on the equipment.
8 A
8 A
L
N
1
2
3
4
5
Input
NC
C
NC
C
NC
90-260 V~
Gas
Pre-
Trapped
50/60 Hz
Alarm
alarm
person
output
gas
alarm
output
output
Voltage free contact
connection detail
Only the S1 and S2 inputs are
compatible with AKO-5221x
gas detectors
ALARMS
1
2
3
4
1
2
3
4
16 A
6
7
T+
T-
G
+
C
NO
Modbus
(RS-485)
Always disconnect the power supply before
handling the jumper or the selector.
MODBUS address selector
Pre-alarm jumper
S1
-
+
S2
-
+
S3
-
+
OPTION A
OPTION B
OPTION A
OPTION B
20
: 99
: 98
: 97
: 96
Pre-alarm disabled
Pre-alarm enabled
S4
-
BUTTON 4
BUTTON 3
BUTTON 2
DETECTOR 2
BUTTON 1
DETECTOR 1
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