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Fig. 10: Correct direction of rotation TR/E 216
to 326-3
Fig. 11: Correct direction of rotation TR 212/
TRE 312
7.4
Operation in an explosive atmos-
phere
Approval according to
ATEX
FM
CSA-Ex
30
Commissioning
Checking the direction of rotation
‡
Mains connection with clockwise rotating field present.
‡
Rotating field inspected by a qualified electrician.
‡
No-one is allowed in the working area of the mixer.
‡
Mixer securely installed.
WARNING! Do not hold the mixer in your hands! The high starting torque can lead to
serious injuries!
‡
Propeller is visible.
1. Switch mixer on. Max. operation duration: 15 s!
2. Propeller direction of rotation:
View from front: The propeller rotates counter-clockwise (to the left).
View from behind: The propeller rotates clockwise (to the right).
▶ Direction of rotation is correct.
NOTICE! Opposite direction of rotation for mixer types TR 212 and TRE 312! Seen from
the front, the mixers rotate clockwise, seen from the rear, counterclockwise.
Incorrect direction of rotation
If the direction of rotation is incorrect, change the connection as follows:
ƒ
Direct starting: swap two phases.
ƒ
Star-delta starting: Swap connections of two windings (e.g. U1/V1 and U2/V2).
NOTICE! After changing this connection, check the direction of rotation again!
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WILO SE 2021-05
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