Description
The in-bottom/out-top cooling kit is designed for the specic
VLT
®
HVAC Drive FC 102, VLT® AQUA Drive FC 202, and VLT
®
AutomationDrive FC 302 D4h-size VLT® Parallel Drive Modules
mounted in a Rittal TS8 enclosure. The kit directs air in from
the bottom of the unit and out through the top of the unit.
See Illustration 1.1.
1 Back-channel airow (exhaust)
2 Drive module
3 Back-channel airow (intake)
4 Upper duct assembly
5 Lower duct assembly
Illustration 1.1 Direction of
Airow
with the Kit Installed
Kit Part Number
Part number Kit description
176F6491 In-bottom/Out-top Cooling Kit for
the VLT
®
Parallel Drive Modules
(2-drive system)
Table 1.1 Part Number for the VLT® Parallel Drive Modules
In-bottom/Out-top Cooling Kit
Items Supplied
Enclosure mounting assembly
•
Base mounting plate, 38 mm (1.5 in.) (4)
•
Gasket, base mounting plate (4)
•
Slot gasket between drive module and mounting
backplate (2)
•
M5 nuts (20)
•
Screws, M5x16 (14)
Upper duct assembly
1 Gasket between grill and top cover panel (1)
2Grill (1)
3 Gasket, top front cover (1)
4Gasket, left front cover (1)
5 Gasket, bottom front cover (1)
6Front cover plate (1)
7 Gasket between duct enclosure and grill (1)
8 Duct enclosure (1)
9 Gasket, right front cover (1)
10 Gasket between duct enclosure and base plate (1)
11 Base plate (1)
12 Gasket between base plate and module (1)
–Nuts, M5 (26)
–Screws, M5x12 (6)
Illustration 1.2 Upper Duct Assembly for 1 Drive Module
Installation Instructions
In-bottom/Out-top Cooling Kit for VLT®
Parallel Drive Modules
VLT® Series FC 102, FC 202, and FC 302
Danfoss A/S © 04/2016 All rights reserved. MI92M102
Lower duct assembly
1 Gasket between the top plate and the module (1)
2 Top plate between module and lower duct (1)
3Gasket, top side plate (2)
4 Gasket, upper strip on front side of duct enclosure (1)
5 Gasket between front plate and access plate (2)
6 Access plate (2)
7Front plate (1)
8 Gasket, lower strip on front side of duct enclosure (1)
9 Gasket between top plate and lower duct enclosure (1)
10 Top side plate (2)
11 Duct enclosure (1)
12 Gasket, side rail on front side of duct (2)
13 Gasket between grill and lower duct enclosure (1)
14 Bracket (3)
15 Grill (1)
16 Screw/washer assembly for bracket (3)
17 Gasket between grill and gland plate (1)
18 Base cover plate (2)
19 Gasket between base cover plate and base plate (2)
–Nuts, M5 (47) and M6 (3)
Illustration 1.3 Lower Duct Assembly for 1 Drive Module
Safety
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors, which
can remain charged even when the unit is o. High voltage
can be present even when the warning indicator lights are
o. Failure to wait 20 minutes after power has been
removed before performing service or repair work, could
result in death or serious injury.
•
Stop the motor.
•
Disconnect the AC mains, permanent magnet type
motors, and remote DC-link supplies, including
battery back-ups, UPS, and DC-link connections to
other frequency converters.
•
Wait 20 minutes for the capacitors to discharge fully,
before performing any service or repair work.
•
Measure the voltage level to verify full discharge.
Installation
NOTICE
If both a bus bar kit and a back-channel cooling kit are
being installed in the cabinet, install the back-channel
cooling kit rst.
NOTICE
APPROVALS AND CERTIFICATIONS
This VLT® Parallel Drive Modules back-channel cooling kit is
UL 508C compliant. These installation instructions describe
how to install the back-channel cooling kit which, if
followed, meet specic agency approvals and certications.
Seek agency approvals or
certications
apart from Danfoss if
designing and building other congurations.
NOTICE
APPLYING GASKETS
This kit contains gaskets to ensure a proper seal between
metal parts. Before adhering a gasket to a part, check that
the part matches the gasket and that no holes are covered.
Remove paper backing and place the sticky side on the part.
Installation Instructions
In-bottom/Out-top Cooling Kit for VLT®
Parallel Drive Modules
VLT® Series FC 102, FC 202, and FC 302
2
Danfoss A/S © 04/2016 All rights reserved. MI92M102
Assembling the Lower Duct Enclosure
1. Position the duct enclosure (11) as shown in Illustration 1.4.
2. Install the top plate assembly.
2a Place the U-shaped gasket (9) along the top edge of the duct enclosure.
2b Apply the gasket (1) to the top side of the top plate (2). Leave the paper backing on the adhesive until the duct
is ready to install on the drive module.
2c Install the top plate, with the studs facing down, onto the top of the duct enclosure. Secure with 4 M5 nuts and
torque to 5.1 N · m (45 in-lb).
2d Install the top side plate gaskets (3) to the underside of the top plate (2).
2e Install both top side plates (10) over the top side plate gaskets. Secure each top side plate with 5 M5 nuts and
torque to 5.1 N · m (45 in-lb).
2f Apply the upper strip gasket (4) to the top plate
ange
along the front of the duct enclosure.
3. Install the grill assembly to the base of the duct enclosure.
3a Apply the gasket (13) to the base of the duct enclosure.
3b Apply the gasket (17) to the base of the grill plate.
3c Install the grill (15) with the ange facing upward onto the duct enclosure base.
3d Apply the lower strip gasket (8) to the grill plate ange.
3e Fasten the grill to the duct enclosure using the 3 brackets (14). Each bracket is placed over a stud on the grill
and lines up with 2 studs in the duct enclosure.
3f Secure each bracket to the duct enclosure with 2 M5 nuts. Torque to 5.1 N · m (45 in-lb).
3g Secure the grill to each bracket using 1 M6 nut. Torque to 6.0 N · m (53 in-lb).
4. Assemble the backplate.
4a Apply 1 gasket (5) onto the studs along the edge of each opening on the front plate.
4b Install the access plates (6) over the gaskets and openings in the front plate.
4c Secure each access plate with 8 M5 nuts and torque to 5.1 N · m (45 in-lb).
5. Apply gaskets (12) to each side rail on the duct enclosure.
6. Install the front plate (7) and secure with 11 M5 nuts. Torque to 5.1 N · m (45 in-lb).
Installation Instructions
In-bottom/Out-top Cooling Kit for VLT®
Parallel Drive Modules
VLT® Series FC 102, FC 202, and FC 302
MI92M102 Danfoss A/S © 04/2016 All rights reserved.
3
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