Trane CCEB Installation Operation & Maintenance page 85

Air handling units
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Reasons for increased belt wear or defect
Belt contact the groove bottom / unequal set of belt / tension is too high or too low – Fig-
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ure 130
Slippage / pulley too small / overloading / damaged disc / eccentricity, wobble – Figure
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131
Disc worn / grooved not uniform / dust, dirt / moisture, humidity – Figure 132
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Alignment / offset wheels / non-parallel plates / discs rotated to each other – Figure 133
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Figure 130: Unfavourable operating conditions (1)
Figure 131: Unfavourable operating conditions (2)
Figure 132: Unfavourable operating conditions (3)
Figure 133: Unfavourable operating conditions (4)

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