Danfoss D3, D4, E2 Installation guide
INSTRUCTIONS
INSTALLATION OF TOP SECTION BACK-CHANNEL COOLING KIT FOR
FRAMES D3, D4 & E2
This instruction sheet is for the installation of the top section only of the back-channel cooling
kits available for the VLT
estal is required.
The minimum enclosure depth is 500 mm (600 mm for E2 frame) and the minimum enclosure
width is 600 mm (800 mm 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 back-channel cooling 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.
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 enclosure. (Refer to Note 2 for air flow requirements.)
®
series drives. In addition to the enclosure a 200 mm vented ped-
Table 2. Kit Part Numbers Table 1. Applicable Drives and Frames
VLT Drive Frame
HVAC D3, D4, E2
Aqua D3, D4, E2
VLT Frame Kit Part Number
D3 and D4 176F1775
E2 176F1776
Automation D3, D4, E2
Notes:
1. The photos in this instruction are based on a D4 Frame installation. D3 and E2 frames use
parts similar to those in the photos however they are sized appropriately for those frames.
2. A doorfan(s) is required on the enclosure to remove the heat losses not contained in the
backchannel of the drive. The minimum airflow required (at the maximum rated ambient
3
temperature) for the D3 and D4 frame drives is 391 m
required (at the maximum rated ambient temperature) for the E2 frame drive is 782 m
(460 cfm). If additional heat losses are added within the enclosure a calculation must be
made to ensure the proper airflow is provided to cool the inside of the enclosure.
3. The end user is responsible for ensuring the enclosure rating of the system after the toponly duct kit is installed.
/h (230 cfm). The minimum airflow
3
/h
MI.38.H1.02 - VLT® is a Danfoss Registered Trademark 1
Kit Contents
• Ductwork components
• Mounting hardware
• Gasket material
• 175R5631 View of Ductwork components, D3 and D4 frames
• 175R1037 View of Ductwork components, E2 frame
Required Tools
• Metric Socket Set, 7-19mm
• Socket Extensions
• Torx Driver Set T10-T40
• Torque Wrench 6-50 in-lbs (.7-6 N-M)
Torque Requirements
1. 10 mm, M5 Nuts torque to 20 in-lbs (2.3 N-M)
2. T25 Torx screws torque to 20 in-lbs (2.3 N-M)
Install gasket material on the back openings of
the drive (Photo 1) prior to installation on the enclosure 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. Therefore the template may be used
with any size back panel and both the 1800 mm
and 2000 mm high enclosures.
E2 frame
: Use the measurements on Drawing
175R1037, Sheet 2 to determine the drive location.
Photo 1. Drive openings o n rear are not
used in this application.
MI.38.H1.02 - VLT® is a Danfoss Registered Trademark 2
Prior to installing the back panel in the enclosure,
apply the gasket on both sides of the bottom duct
adapter as shown in Photos 2 and 3.
Photo 2. Bottom duct adapter
Before installing the back panel with the drive in
the enclosure, remove and discard the rear-most
screws (Photo 4) that are located on the top cover
of the drive. The holes will be used to fasten the
top ductwork with longer screws provided with the
kit.
Photo 3. Bottom duct adapter w/
Photo 4. Top of IP00/Chassis drive.
MI.38.H1.02 - VLT® is a Danfoss Registered Trademark 3
Install the backpanel in the enclosure (Photo 5). Use brackets
supplied by the enclosure manufacturer (minimum one per side
at the middle of the drive) with appropriate support strip for
additional support of the backpanel. For the D4 frame use two
supports per side. Consult the enclosure manufacturer manual
for additional support requirements if additional components are
mounted on the same back panel.
The top duct work cover is composed of
the following pieces as shown in Photo 6.
From left to right:
• top duct closing plate
• drive bracket
• duct
• vented top cover
Install the drive bracket onto the duct.
Photo 5. Drive installed
in cabinet—D4 Frame.
Photo 6. Top duct assembly.
Photo 7. The top duct work partially assembled with bottom flange.
MI.38.H1.02 - VLT® is a Danfoss Registered Trademark 4
Temporarily install the top duct section as shown in Photo 8. Use the
top duct cover piece to mark the enclosure top for the opening. Alternately, Drawing 175R5639 can be
used to mark the enclosure for cut-
Cut the enclosure top. Do not apply
gasket to enclosure top (the gasket
is part of the duct work).
Photo 8. Top duct work and enclosure top installed.
Photo 9. Enclosure top with cutout.
MI.38.H1.02 - VLT® is a Danfoss Registered Trademark 5
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