NOTE!
A door fan or fans are required on the Rittal cabinet to remove the losses not contained in the backchannel of the drive. The minimum
door fan airflow required at the drive maximum ambient for the D3 and D4 is 391 m^3/h (230 cfm). The minimum door fan airflow
required at the drive maximum ambient for the E2 is 782 m^3/h (460 cfm). If the ambient is below maximum or if additional components
and heat loss are added within the enclosure, a calculation must be made to ensure the proper airflow is provided to cool the inside
of the Rittal enclosure.
Ordering Information
Rittal TS-8 Enclosure Frame D3 Kit Part No. Frame D4Kit Part No. Frame E2 Part No.
5.9 ft [1800 mm] 176F1824 176F1823 Not possible
6.5 ft [2000 mm] 176F1826 176F1825 176F1850
7.2 ft [2200 mm] 176F0299
Kit Contents
• Ductwork components
• Mounting hardware
•Gasket material
• Delivered with D3 and D4 frame kits:
• 175R5639 - Mounting templates and top/bottom cut out for Rittal enclosure.
• Delivered with E2 frame kits:
• 175R1036 - Mounting templates and top/bottom cut out for Rittal enclosure.
All fasteners are either:
• 0.39 in [10 mm], M5 Nuts torque to 2.3 Nm (20 in-lbs)
• T25 Torx screws torque to 2.3 Nm (20 in-lbs)
NOTE!
Please see the
Duct Kit Instruction Manual, 175R5640,
for further information
External ducts
If additional duct work is added externally to the Rittal cabinet, the pressure drop in the ducting must be calculated. Use the charts below to derate the
adjustable frequency drive according to the pressure drop.
Figure 3.29: D Frame Derating vs. Pressure Change
Drive air flow: 450 cfm (765 m3/h)
3 VLT AQUA Selection VLT
®
AQUA Drive Design Guide
3-48
MG.20.N5.22 - VLT
®
is a registered Danfoss trademark
3
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