6
IOMM
Starter
Table 1, Starter/VFD Mounting Arrangements
Size
Factory-
Mounted
Free-
Standing
Brackets &
Cables
WSC/WDC 050
X
X
WSC/WDC 063
X
X
WSC/WDC 079
X
X
WSC/WDC 087
X
X
WSC 100 - 126
X
X
WDC 100 - 126
X
WCC 100 - 126
X
Receiving and Setting
Since factory-mounted starters are mounted and wired at the factory, this section will only
apply to free-standing units.
The unit should be inspected immediately after receipt for possible damage.
All McQuay centrifugal starters are shipped FOB factory and all claims for handling and
shipping damage are the responsibility of the consignee.
Extreme care must be used when rigging the starter to prevent damage. See the certified
dimension drawings included in the job submittal for the center of gravity of the unit.
Consult the local McQuay sales office for assistance if the drawings are not available.
The starter can be lifted by fastening the rigging hooks to the four lifting eyes located on the
top of the unit.
Location and Mounting
Clearance
The starter must be mounted on a level concrete or steel base and must be located to provide
adequate service. Local codes or the National Electric Code (NEC) can require more
clearance in and around electrical components and must be checked.
Mounting
Make sure that the floor or structural support is adequate to support the full weight of the
unit.
Standard NEMA 1 and NEMA 12 starters must be installed indoors in an area that is not
exposed to direct water spray. Do not install in areas where the ambient temperature falls
below 32
°
F (0
°
C) or exceeds 104
°
F (40
°
C) enclosed, or 122
°
F (50
°
C) open unless this was
noted at the time of order placement and special precautions were taken to protect against
these abnormal temperatures.
Heatsink temperatures can run as high as 158
°
F (70
°
C) during normal operation. Do not
mount the starter in contact with any material that cannot accept this heat. The starter must be
mounted with the heat sink fins oriented vertically in an area that will not experience
excessive shock or vibration.
Ventilation Requirements
Provisions should be provided in the starter enclosure to ensure that the temperature inside
the enclosure never rises above 122
°
F (50
°
C) or the starter could be damaged or the life of
the starter could be reduced. As a general rule of thumb the following ventilation guidelines
should be followed. These values are for starters with bypass. Bypassed starters generally
do not require ventilation.
Содержание RVSS14
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