Evoqua WALLACE & TIERNAN MFC, Instruction Manual

Page: 195 / 268

MFC
Installation
6.
195
6.3.6 Connect the device to the power supply
Warning!
Only authorised and qualified electricians are permitted to install
the device and open the housing. The device may only be taken
into operation when the housing is closed, and must be connected
to protection earth. Modifications to the device which go beyond
those described in this manual are not permissible.
Warning!
The device is not equipped with a mains switch and is in operation
as soon as the supply voltage is applied. An external switch or
circuit breaker is necessary.
Provide a mains fuse locally (6 A). The conductor cross section of
the mains cable must be at least 0.75 mm (AWG 18).
When connecting system components (e.g. devices, motors,
pumps) as well as when entering operating data, the system
components must be switched off in order to prevent uncontrolled
activation or any incorrect function.
Caution!
To ensure safe and correct commissioning, knowledge of the
operation, connected electrical load, measurement signals, cable
assignment and fuse protection of the connected devices and
machines and the relevant safety regulations is required.
Therefore, the device may only be commissioned by qualified and
authorised electricians.
Incorrectly connected devices can be damaged, possibly
irreparably, or cause faults in other equipment when they are
switched on or in operation. Ensure that the measuring and control
cables are not confused or make contact with one another. Never
connect or disconnect any cables to which voltage is applied!
Please note
A 6 A fuse in the main supply line is necessary when connecting
to 230 V or 115 V.
Recommendation: Provide an on/off facility for the device at the
installation site.
Connect the system components in accordance with the
application-related 9. “Wiring Diagrams" on page 245wiring
diagrams.