Nameplate - Grundfos LC 241 Manual Del Usuario

Related information
4.6.1 Nameplate
2.3.2 Protection of control power transformer circuit
The controller must have overload protection. The protection must
be ensured using components, such as:
• fuse, 5 mm x 20 mm, 1 Amp
• fuse, FNQ-R 0.5 Amp.
See the maximum fuse size for this specific product on the product

nameplate.

Related information
4.6.1 Nameplate
2.3.3 Motor overload protection
For installation of the motor overload protection, follow the
manufacturer's installation manual.
2.3.4 Connecting the multi-voltage primary transformer
DANGER
Electric shock
Death or serious personal injury
‐
Switch off the power supply before you start any work
on the product.
208, 230, and 460-voltage variants require connecting the
power supply to the correct voltage terminal on the
primary transformer.
H1 H2 H3 H4
115V
X2 X1
Primary transformer terminals
1. Determine the incoming power voltage.
2. Adjust the transformer to the desired voltage:
• 460 V - Connect power supply line 2 (L2) to H1, 460 V
• 230 V - Connect power supply line 2 (L2) to H2, 230 V
• 208 V - Connect power supply line 2 (L2) to H3, 208 V
3. Ensure that power supply line 3 (L3) is connected to H4, 0 V.
8
2.3.5 Connecting the pump supply and power supply
DANGER
Electric shock
Death or serious personal injury
‐
If national legislation requires a Residual-Current
Device (RCD), or equivalent, in the electrical
installation, this must be of at least type A due to the
nature of the constant DC leakage current.
WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply before making any
electrical connections. Make sure that the power
supply cannot be switched on accidentally.
‐
Remember to indicate where the main switch is
located by placing a label, or similar, in the control unit.
‐
Make sure that the voltage between the phase and
neutral does not exceed 277 VAC.
‐
Electrical connections must be implemented according
to the wiring diagrams.
Cable glands and plugs should be mounted only after the
installation is completed. Make sure gaskets are put on the cable
glands before the control unit is mounted on the wall.
Do not add components apart from those illustrated on the wiring
diagram. Unused neutral pin holes must not be used for other
connections.
For the US market only, use flexible metal conduits (FMC)
only.
Do not connect the phase inputs to the IO 242 module if
the input is higher than 3 x 480 VAC.
The residual-current circuit indicator must be marked as follows:
Take into account the total leakage current of all the electrical
equipment in the installation
1. Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
2. Cut the power supply and pump supply cables as short as
possible.
3. Before switching the power on, check all voltages with a
multimeter and ensure that the voltage between neutral and
each phase does not exceed 277 VAC.