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Idiomas disponibles
Idiomas disponibles
7
Commissioning
7.1
Personnel qualifications
7.2
Operator's obligations
7.3
Direction of rotation check
(three-phase motors only)
7.4
Operation in an explosive atmos-
phere
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID
Commissioning
WARNING
Foot injuries due to a lack of protective equipment!
During work there is a risk of (serious) injury. Wear safety shoes!
▪ Electrical work: A qualified electrician must carry out the electrical work.
▪ Operation/control: Operating personnel must be trained in the operating principle of the
complete system.
▪ Provision of the 'Installation and operating instructions' at the pump or at a place designated
for these.
▪ Provision of the 'Installation and operating instructions' in the language of the personnel.
▪ Ensure that all personnel have read and understood the 'Installation and operating instruc-
tions'.
▪ All system safety devices and emergency cut-outs are active and have been checked to en-
sure that they work properly.
▪ The pump is suitable for use under the specified operating conditions.
At the factory the pump is checked and set to the correct direction of rotation for a clock-
wise rotating field. The connection is made according to the information in the "Electrical
connection" section.
Checking the direction of rotation
A qualified electrician checks the rotating field on the mains connection with a rotating field
test device. For the correct direction of rotation, a clockwise rotating field on the mains
connection must be present. The pump is not approved for operation with a counter-clock-
wise rotating field! CAUTION! If the direction of rotation is checked with a test run, ad-
here to the environmental and operating conditions!
Incorrect direction of rotation
If the direction of rotation is incorrect change the connection as follows:
▪ For motors in direct starting swap two phases.
▪ For star-delta activation motors swap the connections of two windings (e.g. U1/V1 and U2/
V2).
DANGER
Risk of explosion due to flying sparks in the hydraulics!
During operation, the hydraulics must be flooded (completely filled with the fluid). If the
volume flow is interrupted or the hydraulics emerges, air cushions can form in the hy-
draulics. If this happens, there is a risk of explosion e.g. flying sparks due to static charge!
Dry-running protection must ensure that the pump is deactivated at the appropriate
level.
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