Wilo Control SC-L, Инструкция по установке и эксплуатации

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Installation and operating instructions Wilo-Control SC-L 37
INSTALLATION English
4. Fix the power supply cable to the wall.
Floor model
The floor model is supplied as standard with a
100 mm high pedestal with a cable inlet. It is
installed free-standing on a level surface with
sufficient bearing capacity.
Other supports are available on request.
Outdoor installation
The standard mounting pedestal with cable inlet
must be buried as far as the marking or recessed
in a concrete base. The switchgear is then fixed to
this pedestal.
1. Position the pedestal at the desired mounting
location.
2. Insert the pedestal into the ground as far as the
marking. We recommend fixing the pedestal using
a concrete base as this guarantees the greatest
possible stability.
Ensure the pedestal is plumb-vertical.
3. Secure the switchgear on the pedestal using the
enclosed fixation material.
5.3.3. Positioning of signal transmitters
For automatic control of the connected pumps,
a corresponding level control device must be
installed. This needs to be provided by the cus-
tomer.
Float switches or level sensors may be used as
signal transmitters. The corresponding signal
transmitters must be installed according to the
unit's installation plan.
DANGER - explosive atmosphere!
If the connected signal transmitters are used
in potentially explosive areas, the Ex-version
of the switchgear (SC-L...-Ex) must be used.
Use of the standard switchgear can lead to
fatal injury due to explosions! Connection
must always be carried out by a qualified
electrician.
Note the following:
• When using float switches, ensure that these can
move unobstructed in the operating space (pump
chamber, reservoir).
• The water level of the connected pumps must not
fall below the minimum.
• The maximum switching frequency for the con-
nected pumps must not be exceeded.
5.3.4. Dry-running protection
Dry-running protection can be provided via a
separate float switch or via the level sensor.
When using the level sensor, the switching point
must be set via the menu.
A forced switch-off of the pumps always
occurs, irrespective of the selected signal
transmitter.
5.3.5. High water alarm
The high water alarm can be via a separate float
switch or via the level sensor.
When using the level sensor, the switching point
must be set via the menu.
Forced activation of pumps only occurs if the
high water alarm is realised via a float switch
however.
5.4. Electrical connection
POTENTIALLY fatal danger due to electrical
voltage!
Incorrect electrical connections can cause fa-
tal electric shocks! Electrical connections may
only be carried out by a qualified electrician
approved by the local energy supply company,
in accordance with locally applicable regula-
tions.
DANGER - explosive atmosphere!
If the connected pumps and signal transmit-
ter are used in potentially explosive areas,
the Ex-version of the switchgear (SC-L...-Ex)
must be used. Use of the standard switchgear
can lead to fatal injury due to explosions!
Connection must always be carried out by a
qualified electrician.
NOTE
• Depending on the system's impedance and the
connected consumers' max. no. of connections/
hour, voltage fluctuations or voltage drops may
occur. Always have the electrical connections
carried out by an electrician authorised by the
local energy supply company.
• When using shielded cables, the shielding must
be attached to the earthing rod on one side of
the switchgear!
• Observe the installation and operating in-
structions for the connected pumps and signal
transmitters.
• The mains connection current and voltage must
be as stated on the rating plate.
• Fuse protection on the mains side must be in
accordance with the data in the wiring diagram.
All-pole disconnecting, K-type circuit breakers
must be installed!
• A residual-current device (RCD, type A, sinusoidal
current) must be installed in the supply line. Ob-
serve the local laws and regulations on this too!
• Route the power supply cable in accordance with
the valid norms and regulations and according to
the wiring diagram.
• Ground the system (switchgear and all electric
consumers) in accordance with the regulations.