Wilo Yonos ECO BMS Notice De Montage Et De Mise En Service page 39

9.1 Dismantling/installation
WARNING! Risk of injury and damage to property!
Incorrect dismantling/installation can lead to injuries and damage to property.
• Touching the pump can cause burns!
Depending on the pump or system operating conditions (fluid temperature), the entire
pump can become very hot.
• At high fluid temperatures and system pressures there is risk of scalding due to escap -
ing hot fluid.
Before dismantling the motor, close the existing shut-off devices on both sides of the
pump, allow the pump to cool down to room temperature, and drain the isolated
branch of the system. If no shut-off devices are fitted, drain the system.
• Observe the manufacturer's information and safety data sheets on possible additives
in the unit.
• Risk of injury due to the pump falling when the threaded pipe union has been undone.
Comply with national regulations for accident prevention and also with the operator's
internal works, company and safety regulations. If necessary, wear protective clothing
and equipment!
• It is not permitted to remove the control module!
WARNING! Danger due to magnetic field!
Inside the machine there is always a magnetic field that can cause injury and damage
to property in the event of incorrect dismantling.
• It is not permitted to remove the rotor unit (comprising the separating can, bearing
plate, rotor and impeller) from the motor housing!
• If the unit consisting of impeller, bearing plate, rotor, and separating can is pulled out
of the motor without permission, persons with medical aids, such as cardiac pacemak -
ers, insulin pumps, hearing aids, implants or similar are at risk. For such persons, a pro -
fessional medical assessment is always necessary.
• Electronic devices may be impaired functionally or damaged by the magnetic field of
the rotor.
In assembled condition, the rotor's magnetic field is guided in the motor's iron core. There
is therefore no harmful magnetic field outside the machine.
DANGER! Risk of fatal electrical shock!
If the upper part of the control module is dismantled improperly, a potentially fatal
shock voltage may be present at the electronics on the inside.
If you wish to move the control module to another position, the motor (motor housing and
control module) must not be completely removed from the rotor unit. The motor can be
rotated to the desired position (see Fig. 2a for the permissible installation positions).
NOTE: Generally turn the motor head before the installation is filled.
• The release the motor, undo 4 internal hexagon head screws.
• After rotating the motor, tighten the 4 internal hexagon head screws again crosswise.
• For the commissioning of the pump, see Chapter 8.
Installation and operating instructions Wilo-Yonos ECO BMS
English
35