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Check the tension of the belt and the alignment of the pulleys, refer to chapter 9.2.4 (Re-
-
tensioning of belts).
Check the motor connection and the matching of the supply voltage at the rated voltage - a
-
fluctuation of supply voltage between + -5% is permitted.
8.1.1 Variable frequency controlled drives - parameters
The frequency converter must be configured, if not done by TRANE (please refer to technical data
sheet): parameterization using the following Table 6 respectively the provided manufacturer's op-
erating instructions and data from TRANE technical data sheet.
Observe safety instructions of chapter 2.2 (Indications for minimizing specific
-
hazards) and safety instructions of manufacturer (supplied by TRANE).
Observe safety instructions of fan manufacturer (supplied from TRANE) regard-
-
ing fan minimum starting up time. Otherwise fatigue fracture of impeller may oc-
cur.
Table 5: Tightening torque for variable pulleys
Figure 123: Fixing screws
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