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3.2 Cooling
The specified space around the RCU ensures proper cooling air circulation. See table 3.2 for
dimensions. If multiple units are to be installed above each other, the distance between the
units must be b+c and air from the outlet of the lower unit must be directed away from the
inlet of the upper unit.
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b
a
c
Figure 3.2 Installation space
Size
KE2 / KE3/ KE4
Table 3.2 Installation space dimension
a2 = distance from the RCU to other RCU
hitachiacdrive.com
Hitachi America, Ltd. RCU SERIES
a
Dimension(mm)
a
a2
30
10
160
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b
c
80
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11
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