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IOM_CLVBA-CLVA_401_208095_200801_EN
CLVBA-CLVA
EVAPORATION UNITS AIR-AIR
OPERATION
INDOOR FAN TRANSMISSION ADJUSTMENT
Adjust transmission in such a way that the indoor motor consumption comes to its normal value.
If consumption is below nominal value it means that unit air flow is too low.
To change fan speed:
1. Remove the belt. Move the motor along its track (or loosen the tensor set screw) in order to release it.
2. Loose the set screws of the motor pulley and turn the movable flange. Open of close depending on the needs
(Open: speed decreases).
3. Tighten set screws.
4. Place the belt in the pulley cannel. The closure of opening of the pulley could void the size of the prior belt. In
this case, replace it for other belt of the same profile and with the appropriate length.
5. Tighten the belt by using tensor screw or sliding the motor, depending on the case.
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Align fan and motor pulleys:
1. Loose fan pulley set screws.
2. Slide fan pulley along the shaft and align with motor by using a ruler in order to ensure that is parallel to the belt.
3. Tighten fan pulley set screws.
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Adjust belt tension
:
1. Loose motor mounting plate bolt and slide it.
2. Belt flexion in millimeters is estimated by dividing S by 40.
1.
Motor
2.
Motor pulley
3.
Transmission belt
4.
Fan pulley
5.
Tensor set screw
6.
Set screw
7.
Fixed flange
8.
Movable flange