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VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG
Short Term Storage
If the equipment is not put into immediate use it should
be stored in a clean, dry location. For all Weather
Protected Type II (WPII) motors, motor heaters should
be activated upon arriving at the jobsite to prevent con-
densation. This is required for warranty considerations.
Care should be taken to keep the equipment covered
when moving from a cold location to a warm location,
otherwise condensation may occur. If condensation
does occur, and the equipment is moist, allow it to dry
thoroughly before applying power.
Long Term Storage
1. Cover machined metal parts with weatherproof cover,
but leave ventilating area exposed.
2. Make certain unpainted portions are covered and re-
touch any scratches or fl aked areas.
3. If condensate plugs or drain plugs have been used,
make sure they are operative.
4. Cover completely with plastic cover and insert silica-
gel bags inside the cover for moisture control.
5. If motor is equipped with space heaters make sure
space heaters are properly connected and operative.
The motor interior temperature should be maintained
approximately 10 °F (5.6 °C) above ambient.
6. For all Weather Protected Type II (WPII) motors, motor
heaters should be activated upon arriving at the jobsite
to prevent condensation. This is required for warranty
considerations.
7. A systematic inspection and maintenance schedule
should be established. If rotating apparatus is to be
stored for 6 months or longer, it should, in addition to
the minor precautions above, be given a megger test ev-
ery 3 to 6 months. A minimum reading of 10 megohoms
is recommended. A record of insulation values, temper-
ature, time, humidity and length of voltage application
should be recorded to show winding conditions prior to
start up.
8. If windings are designed for outdoor operation, they
will not be affected by extreme or sudden temperature
changes or inclement weather in general. However a
weather proof cover with provisions for adequate venti-
lation should be used to guard against intrusion of salt,
dust, or other abrasive or corrosive material.
9. It is recommended that the rotor be turned every
month to redistribute the lubricant in the bearings and
oil or grease be added every 6 six months.
10. Preferably, storage would be in a warehouse or en-
closed building but the same precautions should be
followed.
Lubrication
Refer to manufacturer’s lubrication instructions.
Appendix B • Motor (Compressor) - General Storage Instructions