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Wilo DrainAlarm Manual page 14

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8.3
Connection of signal transmitters
within potentially explosive atmo-
spheres
8.4
Activating the device
3
PE N L1
Fig. 6: Terminals for mains connection
8.5
During operation
14
DANGER
Risk of explosion due to incorrect connection!
If the connected float switch is installed within a hazardous area (ex-
zone), there is a risk of explosion if the connection is faulty!
• Connect the float switch using an Ex cut-off relay!
• Connection must be carried out by a qualified electrician.
In order to activate the switchgear, connect the battery and establish the mains connec-
tion.
Connect the battery (only DrainAlarm)
Installation carried out correctly.
Alarm signal connected.
Float switch installed and connected.
Switching point set correctly.
1.
Remove the housing cover.
2.
Remove the grommet from the plus contact (+) of the battery.
3.
Connect the blade connector to the plus contact (+) of the battery.
4.
Reattach the housing cover.
Rechargeable battery installed.
Establish mains connection to the attached plug
The switchgear comes with a connection cable and an attached CEE7/7 plug as standard.
Battery connected (only DrainAlarm).
Housing cover installed, switchgear closed.
Type "E" or "F" socket available.
1.
Insert plug into socket.
Switchgear starts. All LEDs light up for 2 s.
2.
LEDs show the current operating status.
Switchgear connected.
Establish the mains connection as a fixed connection
Alternatively, you can also disconnect the factory-installed connection cable and connect
the switchgear to a sub-distribution.
Battery connected (only DrainAlarm).
Mains isolator (e.g. main switch) available on-site.
Mains isolator switched off.
3-wire connection cable available on-site.
1.
Remove the housing cover.
2.
Disconnect pre-installed connection cable (see section "Structure [" 6]").
3.
Connect the 3-wire connection cable to the terminal (L, N, PE).
4.
Reattach the housing cover.
5.
Switch on mains isolator.
Switchgear starts. All LEDs light up for 2 s.
6.
LEDs show the current operating status.
Switchgear connected.
Make sure the following points are observed during operation:
Keep the switchgear closed and secure it against unauthorised opening.
Switchgear attached in a flood-proof manner (protection class IP54).
Not exposed to direct sunlight.
Ambient temperature: -20 to 50 °C.
NOTICE! The transformer in the switchgear can heat up to 70 °C during operation. The
housing also heats up as a result.
Installation and operating instructions • Wilo DrainAlarm/DrainAlarm FIRST • Ed.01/2024-08

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