5.2.3 Checking the motor fill
DANGER
Unfilled or insufficiently filled motor
Damage to the motor winding!
▷ Never install and run the motor without sufficient motor fill.
▷ Observe the information sticker on the motors and top up the motor fill as
instructed.
DANGER
Unfilled or insufficiently filled motor
Winding damage!
Corrosion damage!
▷ Observe the information sticker on the motor and top up the motor fill as
instructed.
WARNING
Drinking water/antifreeze mixture could escape
Hazardous to persons and the environment!
▷ Wear safety glasses and protective gloves when topping up, checking and
draining the motor fill.
▷ Observe the national health and safety regulations.
▷ Observe all legal regulations on the disposal.
CAUTION
Freezing of motor fill
Motor damage!
▷ Match the mixing ratio of drinking water / antifreeze agent to the expected
temperatures.
▷ Always protect water-filled motors against frost.
▷ Provide frost-proof storage.
NOTE
The loss of a few drops of liquid fill will not impair the motor function. If any larger
amounts of leakage are suspected, the motor fill must be checked.
Information sticker / motor fill
Submersible motors are filled with a liquid based on drinking water. A distinction is
made between filled and unfilled motors, marked by colour-coded information
stickers attached to the motor, depending on the motor type series. Motors which
are supplied filled with a mixture of drinking water / antifreeze agent must not be
filled with pure drinking water at a later stage. Pure drinking water can only be filled
into motors which have not been filled before.
Table 7: Type of motor fill
Sticker colour Supplied condition Motor fill
Green Filled Drinking water / antifreeze mixture (1,2 propylene glycol)
Red Unfilled Drinking water
or drinking water / antifreeze mixture (1,2 propylene glycol)
5 Installation at Site
UPA, UPZ, BSX
23 of 64
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