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Figure 129: Fan bearing with grease nipple (example Comefri NTHZ) .............................................................................. 83
Figure 130: Unfavourable operating conditions (1) ............................................................................................................ 85
Figure 131: Unfavourable operating conditions (2) ............................................................................................................ 85
Figure 132: Unfavourable operating conditions (3) ............................................................................................................ 85
Figure 133: Unfavourable operating conditions (4) ............................................................................................................ 85
Figure 134: Adjustment of pulleys ..................................................................................................................................... 86
Figure 135: Adjustment of pulleys via threaded rods ......................................................................................................... 87
Figure 136: Belt transmission and tensioning data sheet .................................................................................................. 87
Figure 137: Multi-groove pulleys – attaching the belts ....................................................................................................... 88
Figure 138: Warning message filter ................................................................................................................................... 89
Figure 139: Transport of filter bags .................................................................................................................................... 90
Figure 140: Cleaning of air coolers .................................................................................................................................... 91
Figure 141: Scheme of an accubloc .................................................................................................................................. 96
Figure 142: Position of the sensor ..................................................................................................................................... 96
Figure 143: Sound data information ................................................................................................................................ 101
Figure 144: Lifting with chain hoist .................................................................................................................................. 106
Figure 145: Securing with belt ......................................................................................................................................... 106
Table index
Table 1: Base frame heights, depending on the AHU weight ............................................................................................ 19
Table 2: Anzugsdrehmoment für Schrauben ..................................................................................................................... 23
Table 3: Drilling diameters for cable glands ....................................................................................................................... 44
Table 4: Torques for the motor terminal board .................................................................................................................. 64
Table 5: Tightening torque for variable pulleys .................................................................................................................. 71
Table 6: parameters for Danfoss frequency converter FC102 ........................................................................................... 72
Table 7: Data of pulley types ............................................................................................................................................. 81
Table 8: Lubrication intervals for fan bearings ................................................................................................................... 83
Table 9: Recommended grease types ............................................................................................................................... 83
Table 10: Lubrication intervals for motor bearings (in month) ............................................................................................ 84
Table 11: Maximum deviation at adjustment of pulleys ..................................................................................................... 86
Table 12: Maintenance plan ............................................................................................................................................ 100
Table 13: AHU categories ............................................................................................................................................... 102
Table 14: Temperature classes of AHU category 2 G ..................................................................................................... 102
Table 15: Information for disposal ................................................................................................................................... 107