Wilo TOP-Z Instrucciones De Instalación Y Funcionamiento página 37

• Single pump:
Fit the two half-shells of the thermal insulation before commissioning and push
them together so that the guide pins engage in the opposing holes.
7.2 Electrical connection
DANGER! Risk of fatal injury!
Improper electrical connections can lead to fatal electric shock.
• Only allow the electrical connection and all associated activities to be carried
out by an electrician approved by the local power supply company and in
accordance with the local applicable regulations.
• Before working on the pump, all poles of the supply voltage must be discon-
nected. Due to the dangerous residual contact voltage (capacitors), no work
may be commenced on the module until 5 minutes have elapsed (only to 1~
version). Check whether all connections (including potential-free contacts)
are voltage-free.
• Do not operate the pump if the module/terminal box is damaged.
• If the setting and operating elements on the module/terminal box are
improperly removed, there is a danger of electric shock by touching the elec-
trical components located inside.
CAUTION! Risk of material damage!
An incorrect electrical connection can cause material 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 rating 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.
• Fuse on mains side: 10 A, slow.
• The pumps can also be used without limitation in existing installations with or
without residual-current devices. When dimensioning the residual-current
device, consider the number of pumps connected and their rated motor
currents.
• When pumps are used in systems with water temperatures above 90 °C,
a suitable heat-resistant connection cable must be used.
• All connection cables must be installed so that they do not touch the pipe
and/or the pump or motor housing.
• In order to ensure drip protection and strain relief on the threaded cable
connection (PG 13.5), a cable with an outer diameter of 10 – 12 mm should be
used and mounted as shown in Fig. 5. In addition, the cable near the screwed
connection should be bent into the form of a drip loop, from which any accumu-
lated drip will fall. Unused threaded cable connections should be blanked off
with the sealing plates provided, and screwed up tight.
Installation and operating instructions Wilo-TOP-Z
English
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