Wilo Actun OPTI-QS Série Notice De Montage Et De Mise En Service page 64

English
Make sure the water level sensor is not pulled into the casting mold when you are
pulling through connection cables!
10. Secure the pump cable so that no pressure is applied to the mold lid and it has been
positioned evenly on the casting mold.
11. If necessary wipe escaped casting resin from the connection cable.
12. Leave the casting resin mixture to harden for a minimum of 3 hours (at ambient tempe-
ratures ≥ 16 °C) without moving the casting mold.
Once you have completed this step, check that the connections are not damage and
check the earthing duct. Measure the resistance between the motor housing / pump
and the ground terminal of the cable connection and check that it is below 3 Ω.
Once again measure the insulation resistance prior to connecting the connection cable
to the switchbox / main switch. This way, you can identify damage caused during instal-
lation.
• Use an insulation tester (measuring voltage is 500 V) to measure the resistance of the
connection cable.
• The resistance must not fall below the following values during initial commissioning:
• Power supply connection cable: min. 100 MΩ
If the insulation resistance is too low, it is possible that moisture has penetrated into
the cable and/or the motor. Do not connect the pump. Consult the manufacturer!
If the insulation resistance is OK, connect the unit to the mains supply by connecting
the connection cable to the switchbox.
Electrical connections may only be made by a qualified electrician!
6.3.2. Wilo-Actun OPTI-QS electrical connection (Fig. 5)
Fig. 5.: Wilo-Actun OPTI-QS connection cable
Item Wire color
1 Black
2 Red
3 Black
4 Yellow/green
64
Connection
Negative terminal (-)
Positive terminal (+)
Water level sensor (already connected)
Earthing
INSTALLATION
WILO SE 02-2019 DIN A5