Zehnder Rittling VDA 160, Manual

12 - EN

VDA 200 to 560

Disassembly

■

 Before starting disassembly of the mo-

tor, isolate the fan from the mains; first 
turn off the operating switch, followed 
by the mains switch;

■

 Disconnect the connection cable(4) 

between the motor and external termi-
nal box or mains switch(possibly in the 
terminal box);

■

 Loosen the nuts(5) and remove the 

outer assembly plates(6);

■

 Remove the upper casing(7) and the 

protective grille(1);

■

 Remove the motor cover(3) by pulling 

it upwards and pushing the springs(2) 
outwards;

■

 Loosen the nuts(8) and remove the inner 

assembly plates(9);

■

 Remove the motor frame(10) with motor 

and vane from the fan.

  Do not set aside with the vane on the 

ground!

■

 Assembly is performed in the reverse 

order;

■

 Check the free rotation of the vane;

■

 Check the rotating direction of the vane 

(see arrow on fan). Incorrect rotation 
may result in the motor burning out;

■

 Switch on the fan; first the mains 

switch, followed by the operating 
switch.

VDA 200 - 560

1a.

Vane disassembly

■

 Remove the catch plate from the vane;

■

 Remove the vane from the motor;

■

 Assembly is performed in the reverse 

order;

■

 If an alignment mark is present on the 

hub plate of the vane, ensure that this 
is aligned opposite the key way on the 
motor shaft as this is the position in 
which the vane was balanced.