Operating instructions

The fi rst VLT® HVAC Drive – the VLT® 100 from 1983 – has proven the reliability
of VLT® drives. Original VLT® HVAC Drives installed in1983 are still functioning
reliably over 20 years later.
Proven reliability
Global Marine
1968 1983 1988 1989 1993 1996 1998 2000 2004 2006-2008
2010-2011 2013-
VLT® 5 VLT® 100 VLT® 1000 VLT® 3000 HVAC VLT® 2000
VLT® 3500 HVAC
VLT® Drive Motor
FCM 300
VLT® 6000 HVAC VLT® 2800 VLT® FCD 300 VLT® AutomationDrive VLT® HVAC Drive
VLT® AQUA Drive
VLT® Advanced
Active Filter
VLT® Decentral
Drive FCD 302
VLT® OneGearDrive
VLT® Integrated
Servo Drive
VLT® High Power
Drives up to 1.4 MW
VLT®
Micro
Drive
VLT® 5000
VLT® 5000 book
VLT® High
Power Drives
VLT®
12- Pulse Drive
3
High ambient temperature
The robust VLT® HVAC Drive is
design ed to work at maximum output
in an ambient temperature up to
50° C. At higher temperatures, the
drive will continue operation with
lower performance.
Automatic derating enables reduced
operation for a period of time still at
higher ambient temperatures to
maintain operation of the HVAC
system.
Maintenance free
Due to a series of self-protecting
and monitoring features and a highly
durable mechanical design, the
VLT® HVAC Drive is maintenance free,
except for general cleaning.
No replacement of internal fans or
capacitors is required.
Save space
Due to its compact dimensions, the
VLT® HVAC Drive is easily mounted
inside a HVAC unit or panel, reducing
overall enclosure costs and freeing up
panel backspace for other devices.
Save energy
The energy consumption from HVAC
applications such as fans and pumps
raises with the cube of the fl ow.
Thats the reason why VLT® control of
such applications typically save 48%
energy compared to on-off operation
Fire Override Mode
Fire Override Mode helps keep fi re
escape routes free of smoke, overrides
the drive’s self-protecting features and
keeps the driven equipment running
as long as possible in the event of fi re.
Activating Fire Override Mode will
ensure the VLT® HVAC Drive ignores
“soft“ faults and alarms to continue
operation during essential services
such as a “fi re” command.
Save cabinet
We off er a standard & integrated IP55/
Type 12 protection class equal to that
of the motor.
This eliminates the cost of a separate
enclosure and saves on the additional
installation costs associated with
installation in a remote location.
IP 66/Type 4x Indoor
for harsh environments
IP 66/Type 4x enclosure option for
harsh environments also can eliminate
the cost of a separate enclosure and
reduce the installation costs associ-
ated with remote installations.
EMC & network protection
Fully integrated EMC fi lters
eliminate the cost of installing
external EMC fi lters and secure
the highest integrity & fully tested
EMC performance.
All versions of VLT® HVAC Drive
comply as standard with EMC
limits according to the EN 61800-3
norm (page 13).
All A1 and B fi lter options are
available as factory built-in
options.
The standard integrated DC coils
also ensure low harmonic load on
the network within EN 61000-3-12
and increase the lifespan of the
DC link capacitors. They also
ensure that the drive can operate
motors to their full performance.
For further protection against
harmonic disturbances of the
supply grid, Danfoss provides
passive solutions such as 12/18
pulse solutions and Advanved
Harmonic Filters (AHF).
Active solutions
Danfoss also provides active
solutions such as Low Harmonic
Drives, combining standard drives
with an active fi lter and stand-
alone VLT® Advanced Active
Filters (AAF).