Wilo PW BOOST OPTI Installation And Operating Instructions Manual page 14

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Fig. 9: Use poles or pipes for safe routing
Fig. 10: Cable extension, how-to
14
When extending the power cable, use the power cable as shown in the table below. Suffi-
ciently dimensioned cable prevents from failure to start the pump due to voltage drop.
Cable length
< 50 m
< 200 m
Table 1: Required wire diametre
Safe routing of the cable from pump to socket
WARNING! Make sure the cable is inaccessible by persons! Set up poles or use PVC pipes
when pulling wires so that people cannot reach them. To prevent electric shock, make
sure that the pump components are free of leaks/pimp is free of leaks. Disconnect the
connected parts if leaks occur.
Power cord extension method
• Strip the cable sheath's ends of the pump motor cable and the extension cable by
50 ... 60 mm with a wire stripper.
WARNING! Prevent damage to the inner core of the copper wire.
• Cut the individual inner wires of motor and extension cable to the specified lengths, en-
suring that each wire aligns with its corresponding counterpart.
CAUTION! Risk of damage to the product. Each wire shall be connected with the corre-
sponding wire of the same colour. Check the correct alignment of the wires.
• Strip the isolation of each inner wire to reveal a 20 ... 30 mm copper wire.
• Tighten two wires of the same colour into spiral shape to ensure close connection.
• Tightly wind and cover each copper wire connection with electrical insulating tape over its
length of 15 ... 20 mm.
• Wrap the wire connection that is covered with the electrical insulating tape with a water-
proof adhesive tape. Before the wrapping, the waterproof tape should be stretched out 1-
fold its length, following the normal use.
Note: The covering of waterproof adhesive tape should be 10 mm longer than the electrical
insulating tape at both ends.
• Wrap the open junction of the cable sheath with all wires wrapped with the waterproof
adhesive tape with electrical insulating tape. Ensure that the insulating tape extends 10
mm beyond the exposed inner wires on both sides.
• Wrap the cable sheath that is wrapped with the electrical insulating tape another time
with waterproof adhesive tape. The covering of waterproof adhesive tape should be
10 mm longer than the electrical insulating tape at both ends. Before the wrapping, the
water proof tape should be stretched out 1-fold its length, following the normal use.
Installation and operating instructions • Wilo-PW BOOST OPTI • Ed.01/2024-06
Minimum required cross section of each
wire
2
1.25 mm
2
2 mm