Cleaning/care
191
0000010038-003- GB
Cleaning/care
7.3 Maintenance/cleaning by qualified persons
7.3.1 Checking the winding shield
Checking the winding shield
The resistance of the PTC resistors must be checked in the motor terminal box
by an electrician at least once a year. Resistance must be measured with a
cold motor, and should be 750 ohms ± 200 ohms.
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