Installation and operating instructions Wilo-TOP-S/-SD/-Z/-D/-RL/-I 41
English
CAUTION! Risk of damage!
If the wrong voltage is applied, the motor can be damaged!
• The current type and voltage of the mains connection must correspond to the
specifications on the name plate.
• The electrical connection must be established via a fixed connection line
equipped with a connector device or an all-pole switch with a contact opening
width of at least 3 mm.
• Mains-side fuse protection: 10 A, slow.
• Twin-head pumps: provide a separate mains connection cable and a separate
fuse on the mains side for both motors of the twin-head pump.
• The pumps can also be used without restriction in existing installations with and
without FI-protection switches. When dimensioning the FI-protection switch,
consider the number of pumps connected and their motor currents.
• When pumps are used in systems with water temperatures above 90°C, a suit-
able heat-resistant supply cable must be used.
• The supply cable is to be placed in such a way that under no circumstances can
it come into contact with the pipe and/or the pump and motor housing.
• To ensure protection against dripping water and to provide the cable sheath
with strain relief, (PG 13.5), a connection cable with an outside diameter of 10 -
12 mm should be used, and fitted as shown in Fig. 6. In addition, the cable near
the threaded cable gland should be bent into the form of a drip loop, to from
which any accumulated drips will fall. Unused cable glands should be blanked
off with the sealing plates provided, and screwed up tight.
• Commission pumps only if they are fitted with the correct modular cover. Check
that the cover gasket is correctly seated.
• Earth the pump/system according to regulations.
• TOP-D pumps for all connection voltages are fitted with three-phase motors:
• For single-phase operation 1~230 V in a Steinmetz circuit (Fig. 8 a).
The capacitor available as an accessory is attached to one of the motor secur-
ing screws, using the attachment strap supplied (Fig. 5). In this area, the ther-
mal insulation is cut back to from a collar. The capacitor connection cable is
fed though the second cable gland (PG 9).
• For three-phase operation 3~400 V in star arrangement (Fig. 8 b),
• For three-phase operation 3~230 V in arrangement (Fig. 8 b),
For voltage change-over from 400 V to 230 V the respective star- jumpers
must be swapped over (Fig. 8 a to 8 c).
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