Electrical Connection - Wilo -DrainMTS 40/27-1-230-50-2 Einbau- Und Betriebsanleitung

English
7.1.1 Stationary wet-well installation
• Stationary wet-well installation (Fig. 1). Legend to
Fig. 1:
1: Foot bend with pump mounting, profiled gas-
ket, assembly and base fixing screws and pipe
tensioner (Pos. 1.1) for two pipes. The guide
pipes (R¾" = Ø26.9 to DIN 2440) are to be
obtained by the customer.
2: Backflow preventer with unrestricted pas-
sage, cleaning opening, ventilating device and
assembly accessories
3: Shut-off valve with fitting accessories
4: Pipe bend with fitting accessories
6: Chain
See catalogue for details.
• The fixed pipe connections on the pressure side
are to be provided by the customer.
• Fit and align the foot bend on the base of the shaft
with the base fastening accessories.
• Connect the pressure piping to the foot bend with
the required fittings (accessories).
• Attach the pump mounting and profiled gasket to
the pump pressure pipe connection.
• Attach the R¾" guide pipe (to be provided by the
customer) to the foot bend.
• Hang the pump from the guide pipe and carefully
lower it on the chain. The pump will lock into the
right operating position automatically and seal the
delivery connection on the foot bend by its own
weight.
• Fasten the chain to the guide pipe mounting with
a shackle (provided by the customer).
7.1.2 Transportable wet-well installation
CAUTION! Risk of damage to the pump!
The pump should be prevented from falling over
or moving away from the spot where it has been
installed.
• Transportable wet-well installation MTS 40/... and
MTS 40 E 17...23 (Fig. 2).
6: Chain
9: Stand with fixing accessories
10: Pipe bend R1 ¼ (inner/outer thread) with fit-
ting accessories
See catalogue for details.
• Transportable wet-well installation MTS 40 E
32...39 (Fig. 3).
6: Chain
9: Stand with fixing accessories
10: Pipe bend R1 ½ (inner/outer thread) with
flange and fitting accessories.
See catalogue for details.

7.2 Electrical connection

WARNING! Risk of electric shock!
Electrical connection must be carried out by an
electrical installer authorised by the local power
supply company in accordance with the applica-
ble local regulations (e.g. VDE regulations).
• Check that the mains current and voltage comply
with the data on the rating plate.
• Pump must be earthed in compliance with regula-
tions.
12
• Use a residual current operating device 30 mA,
• Use a disconnecting device to disconnect from
the mains with a contact gap width of min. 3 mm,
• Fuse protection: 16 A, inert or circuit breaker with
C-characteristic,
• The switch box for the pump(s) must be provided
as an accessory or by the customer, and must be
equipped with a protective motor switch which is
to be set to the nominal motor current as indi-
cated on the rating plate plus approx. twenty per-
cent.
• Generally speaking, all switch boxes should be
installed outside the explosive area.
• Connecting cables should be connected to the
leads as follows:
Pump with three-phase current motor
(3~400V):
For the three-phase current connection (DM), the
leads of the free cable end are to be assigned as
follows:
MTS 40/...: 6-lead connection cable 6x1.0 mm
Lead no. Binder
1 U
2 V
3 W
green/yellow PE
4 T1 (WSK)
5 T2 (WSK)
MTS 40 E: 7-lead connection cable 7x1.5 mm
Lead no. Binder
1 U
2 V
3 W
green/yellow PE
4 T1 (WSK)
5 T2 (WSK)
6 not assigned
The free cable end is to be wired up in the switch
box (see switch box Installation and Operating
Instructions).
Pump with single-phase current motor
(1~230V):
• Single-phase current connection (EM): The motor
is already factory-wired to the terminal box. The
mains connection is made via terminals L, N, PE.
• In acc. with DIN EN / IEC 61000-3-11 the pump is
to be provided with a rating of 1.5 kW for opera-
tion in a power supply with a system impedance
Z on a line connection of max. 0.125 (0.086)
max
Ohm at a maximum number of 6 (20) switching
operations.
If the supply impedance and the number of
switching operations per hour exceed the above-
mentioned values, the pump can lead to transient
voltage reductions and interfering voltage fluctu-
ations, or "flicker", because of the unfavourable
supply conditions.
Measures may therefore be required before the
2
2
Wilo AG 05/2005