Electrical Connection; Ciu; Electrical Connection - Single-Phase Pumps - Grundfos SL1 AUTOADAPT Serie Montage- Und Betriebsanleitung

8. Electrical connection

The pump must not be used with a
Caution
frequency converter.
Carry out the electrical connection according to local
regulations.
Warning
Connect the pump to an electrical panel in
accordance with local regulations. The
electrical panel typically includes fuses,
main switch and earth leakage circuit
breaker with a contact separation
according to EN 60204-1, 5.3.2.
It must be possible to lock the mains
switch in position 0. Type and
requirements as specified in EN 60204-1,
5.3.2.
The pump incorporates a motor-protective
circuit breaker and all control logic.
Warning
When the pump has been installed, there
must be at least 3 m free cable above the
maximum liquid level.
Warning
If the pump has an Ex mark on the
nameplate, make sure that the pump is
connected in accordance with the
instructions given in this booklet.
Warning
The explosion protection classification of
the pump is CE Ex II 2 G, Ex bcd IIB T4
Gb. See section
The classification of the installation site
must be approved by the local authorities
in each individual case.
The CIU unit, if used, (see section
8.1 CIU) must not be installed in
potentially explosive environments.
Warning
On explosion-proof pumps, make sure that
an external earth conductor is connected
to the external earth terminal on the pump
using a conductor with a secure cable
clamp. Clean the surface for external earth
connection, and fit the cable clamp.
The cross section of the earth conductor
must be at least 4 mm
K (PVT 90 °) yellow and green.
Make sure that the earth connection is
protected from corrosion.
Warning
The pump must not run dry.
14
5. Approvals.
2
, e.g. type H07 V2-
The supply voltage and frequency are marked on the
pump nameplate. For voltage tolerance, see section
13. Technical data. Make sure that the motor is
suitable for the power supply available at the
installation site.
All pumps are supplied with 10 m cable and a free
cable end.
Warning
Before installation and the first startup of
the pump, check the cable for visible
defects to avoid short-circuits.
A possible replacement of the cable must
Caution
be carried out by Grundfos or a service
workshop authorised by Grundfos.

8.1 CIU

Grundfos CIU is used as a communication interface
between an SL1 or SLV AUTO
main data communication network. CIU stands for
"Communication Interface Unit".
The CIU unit is optional. See separate installation
and operating instructions supplied with the unit.
8.2 Electrical connection - single-phase
pumps
The pump has a patented start function which
eliminates the need of a starting capacitor. The run
capacitor is incorporated in the pump.
Fig. 5 Wiring diagram for single-phase pumps
pump and a
ADAPT
2 A 230 VAC