Back-Channel Cooling Overview - Danfoss VLT AQUA Drive FC 202 Design Manual

Product Features

5.13 Back-channel Cooling Overview

A unique back-channel duct passes cooling air over the heat sinks with minimal air passing through the electronics area.
There is an IP54/Type 12 seal between the back-channel cooling duct and the electronics area of the VLT
channel cooling allows 90% of the heat losses to be exhausted directly outside the enclosure. This design improves
reliability and prolongs component life by dramatically reducing interior temperatures and contamination of the electronic
components. Illustration 5.17 shows the standard airflow configuration for an E1h–E4h drive.
Different back-channel cooling kits are available to redirect the airflow based on individual needs. Illustration 5.18 shows 2
optional airflow configurations for an E1h–E4h drive.
5 5
Illustration 5.17 Standard Airflow Configuration for E1h/E2h (Left) and E3h/E4h (Right)
Illustration 5.18 Optional Airflow Configuration Through the Back Wall for E1h/E2h (Left) and E3h/E4h (Right)
28
VLT® AQUA Drive FC 202
225 mm (8.9 in)
Danfoss A/S © 05/2017 All rights reserved.
®
drive. This back-
225 mm (8.9 in)
225 mm (8.9 in)
225 mm (8.9 in)
MG22B102