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INSTALLATION OF BACK-CHANNEL COOLING KIT FOR FRAMES D3, D4 & E2
This instruction sheet is for the installation of back-channel cooling kits available for the VLT
series drives. These kits are designed and tested to be used with Rittal TS8 enclosures
1800, 2000 and 2200 mm in height. Other enclosure heights are not supported. In addition to
the enclosure a 200 mm vented base/plinth is required.
The minimum enclosure depth is 500 mm (600mm for E2 frame) and the minimum enclosure
width is 600 mm (800mm for E2 frame). The maximum depth and width are as required by
the installation. When using multiple drives in one enclosure mount each drive on its own
back panel and support along the mid-section of the panel. The ductwork kits are very similar
in construction for all frames. The D3 and D4 kits do not support "in frame" mounting of the
drives. The E2 kit is mounted "in frame" for additional support of the drive. These kits can be
used with IP00/ Chassis drives as listed in Table 1 and are suitable for use only with Rittal
TS8 IP20 and UL & NEMA 1 and IP54 and UL & NEMA 12 enclosures.
Using these kits as described removes 85% of the losses via the back channel using the
drive's main heat sink fan. The remaining 15% must be removed via the door of the Rittal
enclosure. (Refer to Note 2 on Page 2 for air flow requirements.)
Table 1. Applicable Frames
and Drives
All D3, D4 and E2 Frames
*** IP00 ONLY ***
VLT4000
(North America)
VLT5000
VLT5000FLUX
VLT6000
VLT8000
VLT HVAC
VLT Aqua
VLT Automation
Instruction No: 175R5640 V3
INSTRUCTIONS
Table 2. Kit Part Numbers
Rittal TS8
Frame D3
Enclosure
Kit Part No.
1800 mm
176F1824
2000 mm
176F1826
2200 mm
Aug 13, 2008 Page 1 VLT
Frame D4
Kit Part No.
176F1823
176F1825
NA
NA
®
is a registered trademark of Danfoss A/S
®
Frame E2
Kit Part No.
Does not
fit in 1800
mm
176F1850
176F0299
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Summary of Contents for Danfoss VLT4000
- Page 1 176F1824 176F1823 (North America) VLT5000 VLT5000FLUX 2000 mm 176F1826 176F1825 176F1850 VLT6000 VLT8000 2200 mm 176F0299 VLT HVAC VLT Aqua VLT Automation ® Instruction No: 175R5640 V3 Aug 13, 2008 Page 1 VLT is a registered trademark of Danfoss A/S...
- Page 2 Kit Contents • Ductwork components • Mounting hardware • Gasket material • 175R5631 View of Ductwork components, D3 and D4 frames • 175R1037 View of Ductwork components, E2 frame • 175R5639 Template for drive location in “D” frames Required Tools •...
- Page 3 Install gasket material on the back openings of the drive (Photo 2) prior to installation on the en- closure back panel. D3 and D4 frames: Use the template provided with the kit (175R5639) to determine the drive location on the back panel of the enclosure. The template is referenced to the top-left corner of the back panel.
- Page 4 Install the two mounting brackets on the drive chassis and then install the bottom duct adapter on the bottom of the drive as shown in Photo 5. The installation of the bottom plate is easier while the back panel is outside the enclosure. curved leading edge of the bottom duct adapter is to the front of the drive and down.
- Page 5 The top duct work cover is composed of the following pieces as shown in Photo 8. From left to right: • top duct closing plate • drive bracket • duct • vented top cover Photo 8. Top duct assembly Temporarily install the top duct section as shown in Photo 10.
- Page 6 For the final installation of the duct work, as- Closing plate semble the top duct as shown in Photos 12, 13 and 14. Gasket is applied to several surfaces as shown (refer to drawing 175R5631 Sheet 2, exploded view of components). The top duct closing plate is left off for the installation of the duct work on the drive.
- Page 7 Install top duct cover assembly using the longer T25 screws provided with the kit in the existing drive top cover holes. Reference Photos 17, 18 and Apply the gasket to the top duct closing plate and install. Install the enclosure top. Reference Photos 20 and 21.
- Page 8 The bottom duct assembly pieces are shown in Photo 22. Refer to drawing 175R5631, Sheet 3. Install the gasket as shown. Assemble the bottom duct less the cover. Assembly includes the mount- ing of 3 angle brackets on the front and sides of the partially assembled bottom duct.
- Page 9 The cutout is made on the inner most gland plate Remove the remaining two gland plates for the installation of the bottom duct assembly. Photo 26. Enclosure bottom cutout Photo 27. Bottom duct work installed The bottom duct work is rotated into place as shown in Sketch.
- Page 10 After the bottom duct work is positioned in place, remove the three T25 screws from the outer holes in the mounting brackets on the sides and front of the duct work and move them to the inner holes of the same brackets.