3.2.4.9 Options Cabinet, Enclosure Size F15
539.1
432.2
151.3
0.0
244.4
336.4
171.0
119.0
98.3
46.3
0.0
0.0
97.9
128.5
185.7
212.9
249.0
300.7
327.9
369.5
415.7
600.0
697.9
728.5
785.7
812.9
849.0
900.7
927.9
969.5
1015.7
130BE180.10
Illustration 3.21 Terminal Locations – Left, Front, and Right Views
3.2.5 Cooling and Airow
Cooling
Cooling can be achieved in dierent ways:
•
By using the cooling ducts at the top and bottom
of the unit.
•
By taking air in and out the back of the unit.
•
By combining the cooling methods.
Duct cooling
A dedicated option has been developed to optimize the
installation of frequency converters in Rittal TS8 enclosures
utilizing the frequency converter fan for forced air cooling
of the backchannel. The air out of the top of the enclosure
could be ducted outside a facility so the heat losses from
the backchannel are not dissipated within the control
room. Ducting the air outside the facility ultimately
reduces the air-conditioning requirements of the facility.
Back cooling
The backchannel air can also be ventilated in and out of
the back of a Rittal TS8 enclosure. The backchannel takes
cool air from outside the facility and returns warm air to
outside the facility, thus reducing air-conditioning
requirements.
Airow
Ensure sucient airow over the heat sink. The ow rate is
shown in Table 3.8.
Enclosure
protection
Door fans/Top fan
airow
Heat sink fans
IP21/NEMA 1
700 m
3
/h (412 cfm)
1)
985 m
3
/h (580 cfm)
1)
IP54/NEMA 12
525 m
3
/h (309 cfm)
1)
985 m
3
/h (580 cfm)
1)
Table 3.8 Heat Sink Air Flow
1) Airow per fan. Enclosure sizes F contain multiple fans.
How to Install
VLT
®
AutomationDrive FC 302
28 Danfoss A/S © 04/2016 All rights reserved. MG34Q402
33
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