![background image](http://html1.mh-extra.com/html/carrier/39cz/39cz_installation-operation-and-maintenance-instructions_2562599016.webp)
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Aligning the pulleys
B
By placing a ruler flat against the pulley flange and adhering to the data below.
C
For variable-diameter pulleys, align them along the centre line.
-Hold the pulleys in place with the appropriate tool,
α max < 0.5°
β max < 4 mm per metre of centre distance
Alignment axis
B
C
-Fit the belts,
-Tension the belts as instructed in the previous section.
IMPORTANT: If changes are made to the drive, make sure that it is compatible with the fan motor assembly, motor current
and the suspensions.
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Direction of rotation of the impellers
Centrifugal fan
Low pressure
Centrifugal fan
Moderate pressure
Plug fan
Seen from intake side
Option: device to measure and check the air flow. Used on centrifugal fans and plug fans.
3 - INSTALLATION
16
Summary of Contents for 39CZ
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