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Transport, assembly, and connection
3.3 Electrical connection
● the minimum necessary screw-in depth and the tightening torque for the clamping bolts
Mandatory tightening torques:
Bolt
M5
M8
[ID: 308]
3.3.4
Connecting the fan
Instructions relevant to safety
Please observe the following safety instructions relating to connecting a fan:
CAUTION
Provide a protective circuit that prevents the main motor from being switched on when the
fan unit is not in operation.
CAUTION
Please note that the separately driven fan unit is only suitable for the direction of rotation
shown by the direction-of-rotation arrow.
The fan must not be operated with the wrong direction of rotation as this could lead to the
motor being destroyed.
Note
The direction-of-rotation arrow and the direction of movement of the fan impeller are
indicated on the rear side of the blower.
If necessary, switch the direction of rotation by swapping over two phase conductors in the
terminal box.
Fan connection for suction ventilation (D-end to N-end)
Connect up the fan in the terminal box of the fan unit.
34
must be maintained.
Terminal box type
1XB7 322
1XB7 422
1XB7 700
Tightening torque
2.6 Nm
11 Nm
11 Nm
Siemens AG Operating Instructions 2.02 1PL622
A5E00264365A
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