Operating instructions

An external
watertight USB plug
connected to the
control card inside IP
55/66 enclosures
makes USB access
easy.
The VLT® HVAC Drive
is also available with
a mains switch
option. This switch
interrupts the mains
supply and has a free
useable auxiliary
contact.
All VLT® HVAC Drive versions have
manganese phosphor rear bodies.
IP66/Type 4x enclosed drives are
suitable for installation in demanding
environments (e.g. cooling towers).
Cooling air is kept outside the device
to prevent any pollution of the
electronics. The surfaces are smooth
and can easily be cleaned.
Because of the high-density integra-
tion, the tight housings of the VLT®
HVAC Drive are signifi cantly smaller
when compared to other drives of the
same performance.
Motor and power cables are mounted
securely through glands in the base
plate.
The IP55/66, Type 4x series are
designed for easy accessibility and
time-saving installation.
Furthermore, all components such as
EMC fi lters for compliance with
EN 55011, class A1/B, as well as the
DC coils, are protected inside the
drive.
NEW! Type 4x Indoor
VLT® HVAC Drive comes in the
extremely tight Type 4x enclosure.
High reliability in any environment
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