7 Servicing/Maintenance
66 of 98
UPA / UPA S
3400.86/17-EN
CAUTION
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.
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 a colour-coded
information sticker attached to the motor.
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 without prior
consultation with the manufacturer.
Table 25:
Type of motor fill
Motor type series
Supplied condition
Sticker colour
Motor fill
DN 100
Filled
--
Drinking water / antifreeze mixture
(1,2 propylene glycol)
UMA 150
Filled
--
UMA-S 150
Filled
--
UMA 200
Filled
--
UMA-S 200
Filled
--
UMA 250
Filled
--
UMA-S 250
Filled
--
UMA 300
14D
Filled
Green
Unfilled
Red
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 and preservation. It protects the motor
down to temperatures of -15 °C. Permissible deviations see other applicable
documents.
▪
The percentage of antifreeze agent must always be selected for the expected
temperatures below 0 °C at the place of installation/transport/storage.
▪
The motor fill must be prepared with clean drinking water. The mixing ratio and
total quantity must be observed.
