Connecting The Fan; Figure 3-4 Detailed View Of Fan - Siemens 1PH728 Series Operating Instructions Manual

Installation / Assembly
3.6

Connecting the fan

Instructions relevant for 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.
Connecting
Connect up the fan in the terminal box of the fan unit.
1

Figure 3-4 Detailed view of fan

(1) Fan terminal box
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SIEMENS AG - Operating Instructions
Three-phase induction motor 1PH728.