Wilo TOP-S Instrucciones De Instalación Y Funcionamiento página 17

• Place a container under the back of the pump to catch any water that may run
out.
• Protect all electrical parts against the leaking water.
• Carefully loosen the vent plug with a suitable screwdriver, continue until
water appears, but do not remove.
• After 30 sec. re-tighten the plug.
• Re-open isolating valve.
• Turn the power back on.
CAUTION! Possible damage of the pump!
• Due to the internal pressure imbalance caused during the manual venting
process it is possible that the pump becomes somewhat noisy. This noise
should disappear once the air vent screw has been retightened and the
internal pressure re-balances.
• The required inlet pressure must be obtained at the pump suction side.
8.2 Setting
DANGER! Electrical shock hazard!
Never make any connections in the pump terminal box unless the electrical
supply has been disconnected.
Rotation check for 3~ pump (Fig. 5)
The right direction of rotation will be indicated by a LED in the terminal box
(Fig. 5, Pos 3). This LED is not lit when the direction of rotation is correct. If the
direction of rotation is incorrect, the LED will show red. To check the direction
of rotation briefly connect the pump. In case the direction of rotation is
incorrect, proceed as follows:
• Disconnect the power supply.
• Interchange two phases( L1, L2 or L2, L3 or L1, L3) inside the terminal box.
• Restart the pump.
Speed setting for 3~ pump (Fig.5 ) and 1~ pump (Fig. 6)
Loosen the four terminal box screws and remove the screws and cover. Ensure
the power is disconnected before removing the connector (Fig. 5/6, Pos. 1).
Replace the speed selection connector by removing - rotating 180 degrees -
plugging to the desired speed MAX or MIN.
The speed setting can be read (MAX or MIN) through a window when the
terminal box cover is closed (Fig. 1b, Pos. 1).
9 Maintenance / service
All servicing should be performed by an authorized service representative!
DANGER! Electrical shock hazard!
Dangers caused by electrical energy must be excluded.
All electrical work must be performed after the electrical supply has been
disconnected and secured against unauthorized switching.
Installation and operating instructions Wilo-TOP-S
English
11