Instruction Manual ZHK
V07-21.0
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Test force FE
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Indentation depth TE
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Statistical belt tension (belt tension), FS
The belts are to be tensioned so that the deflection TE arises when the belt is loaded with the test
load in point FE (such as with a spring balance). Alternatively, you can check the static belt tension
FS directly with special belt tension measuring instruments.
Frequency Measurement
Special measuring instruments that are based on frequency measurements are available on the
market. Tension the belt in such a way that during the measurement you measure the same fre-
quency as recorded on the fan data sheet.
9.2.6 Replacing of belts
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Loosen the belt tension to ensure that the old belt can be removed.
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Clean components before putting on the new belt pulleys and check for damage and wear.
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Never push the new belt with a tool onto the pulley in order to avoid damage, which can
shorten the lifetime of the belt.
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On multi-groove pulleys, all belts must be replaced simultaneously.
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Ensure that the belt number coincides with the number of pulley grooves.
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When tensioning the belt on multi-groove drives, ensure that all belts have their loose side on
the same side otherwise they can become damaged (see
).
Figure 217:
Multi-groove pulleys
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attaching the belts
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Tension the belts, give the drive a few turns with no load and re-measure the belt tension.
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Check axle and wheel alignment, see
chapter 9.2.5
).
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Repeat these steps until alignment and belt tension are correct.
9.3 Air filters
EUROCLIMA recommends, in accordance with the REHVA
(Federation of European Heating, Ven-
tilation and Air Conditioning Associations)
, to wear safety gloves and FFP3 respirator when chang-
ing air filters, and to dispose of the dirty filters in a sealed bag
NOTICE!
To ensure the performance and the energy-efficient operation of the AHU, the air
filters must be replaced regularly. Use only filter types and filter sizes, which are
suitable and intended for assembly and purpose. To gain this information, view the
technical data (
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