Commissioning
en
Installation and operating instructions Wilo-EMU KS
229
7
Commissioning
WARNING
Foot injuries due to a lack of protective equipment!
Danger of (serious) injuries during work. Wear safety shoes!
7.1
Personnel qualifications
▪ Electrical work: A qualified electrician must carry out the electrical work.
▪ Operation/control: Operating personnel must be instructed in the functioning of the
complete system.
7.2
Operator responsibilities
▪ Providing installation and operating instructions by the pump or at a place specially re-
served for it.
▪ Making the installation and operating instructions available in the language of the per-
sonnel.
▪ Making sure that the installation and operating instructions are read and understood by
all personnel.
▪ All safety devices and emergency cut-outs on the system-side must be active and
checked to ensure that they work properly.
▪ The pump is suitable for use under the specified operating conditions.
7.3
Direction of rotation check (for
three-phase current motors only)
The pump is factory-checked and adjusted to the correct direction of rotation for a
clockwise rotating field. Connection is made in accordance with the specifications in
chapter “Electrical connection”.
Direction of rotation check
A qualified electrician checks the rotating field at the mains connection with a rotating
field-test device. For the correct direction of rotation, a clockwise rotating field must
be available at the mains connection. The pump is
not
approved for operation with a
counter-clockwise rotating field!
CAUTION! If the direction of rotation is checked
with a test run, comply with the ambient and operating conditions!
Incorrect direction of rotation
If the direction of rotation is false, change the connection as follows:
▪ Swap two phases for motors with direct starting.
▪ Swap the connections of two windings (e.g. U1/V1 and U2/V2) for star-delta activation
motors.
Pumps with CEE plug and phase inverter
AUTO
RESET
180°
ON
OFF
1
2
Fig. 7:
Phase inverter
1. Insert CEE plug into the socket.
2. Check the control lamp.
⇒ Control lamp off: Direction of rotation ok.
⇒ Control lamp on: Incorrect direction of rotation.
3. Correct the direction of rotation.
⇒ Use a suitable screwdriver to press in the phase inverter in the plug and turn
by 180°.
▶ Direction of rotation set correctly.
