Wilo DrainLift M2/8, Installation And Operating Instructions Manual

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English
34 WILO SE 02/2011
The DrainLift M2/8 (1~) single-phase version is intended for operation on a power supply
network with a system impedance at the house connection of Z
max
= 0.218 ohms in acc.
with DIN{EN/IEC 61000-3-11 for a maximum number of 2x45 switching operations per
hour.
NOTE: If the mains impedance and the number of switching operations per hour is greater
than the values specified, because of the unfavourable mains conditions, the unit may
cause temporary voltage drops and also disturbing voltage fluctuations (flickering).
Therefore, measures may be necessary before the unit can be operated correctly on this
connection. The necessary information must be obtained from the electricity supply com-
pany and the manufacturer of the device.
7.4.2 Alarm signal connection
The DrainLift M2/8 unit is equipped with an acoustic signal transmitter in the switchgear in
the factory.
An external alarm switchgear, a horn or flashing light can be connected via a potential-free
contact (SSM) in the switchgear.
Contact load:
• Minimum permitted: 12 V DC, 10 mA
• Maximum permitted: 250 V AC, 1 A
Connection of the external alarm signal
DANGER! Risk of fatal injury!
When working on the open switchgear, there is a danger of electric shock from touch-
ing the live components.
The work may only be carried out by skilled personnel.
To connect the alarm signal, switch the device so that it is voltage-free and secure it
against being switched on again without authorisation.
Observe the installation and operating instructions of the EC-Drain LS2 switchgear!
• Pull out the mains plug!
• Open the cover of the switchgear.
• Remove the protective cover from the threaded cable connection.
• Feed the cable through the screwed connection and connect to the potential-free alarm
contact according to the wiring diagram.
• After the cable has been connected for the alarm signal, seal the cover of the switchgear
and tighten the threaded cable connection.
• Plug the mains plug back in.
NOTE: In the factory settings, the alarm signal triggers when the tank filling level is about
220 mm above the upper edge of the unit's installation surface. This is to be observed
when drainage fixtures are also to be secured with the unit's alarm which lie relatively low
(e.g. floor drains).
8 Commissioning
It is recommended that commissioning be carried out by Wilo After-Sales Service.
8.1 Checking the unit
CAUTION! Risk of damage!
Dirt and solids as well as incorrect commissioning can lead to damage to the unit or
individual components during operation.
• Before commissioning, clean the entire unit to remove contaminants, particularly
solids.
• Observe the installation and operating instructions of the switchgear and the accesso-
ries!
Commissioning may only be carried out when the relevant safety regulations, VDE regula-
tions as well as regional regulations have been met.
• Check for the presence of and proper versions of all required components and connections
(inlets, discharge pipe with check valve, ventilation via the roof, floor fixation, electrical
connection).
• Check the position of the venting screw on the non-return valve to make sure the flap can
move freely in its seat and for the sealing position of the sealing nut.