7.4 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.
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 17: 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)
Mixing ratio / purpose
▪ The motors must only be filled with an antifreeze agent on a 1,2 propylene
glycol basis which has been approved by KSB.
▪ The drinking water / antifreeze mixture supplied by the factory is intended for
operation as well as storage/transport/preservation. It protects the motor up to
temperatures of -15 °C. For any deviations refer to the order documentation /
data sheet.
7 Servicing/Maintenance
UPA, UPZ, BSX
47 of 64
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