5.2.7 Open condensation drain holes (air-cooled motor, L12)
If the machine is ordered with option L12, then for types 1PH818. and 1PH822., a water drain
hole with plugs is provided in the DE and NDE bearing shields. For type 1PH828., there are
water drain holes without plugs at the DE and NDE.
Figure 5-3 Water drain holes, for types 1PH818., 1PH822.
● Make sure that the condensation can always drain away freely.
● The plug that has been inserted into the water drainage holes allows the condensation to
drain away. Do not remove the plug, otherwise the machine's degree of protection will be
affected.
● If you have any questions, contact the Siemens Service Center (Page 131).
NOTICE
Damage due to condensation
If the stator winding is damp, its insulation resistance is reduced. This can result in voltage
flashovers, which can destroy the winding. Condensation can also cause rusting inside
the machine.
● Make sure that the condensation can always drain away freely.
Mounting
5.2 Lift the machine to where it will be mounted and position it
SIMOTICS M-1PH8 1PH818., 1PH822.
Operating Instructions 07/2016 59
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