Operating instructions

8
The modular VLT® HVAC Drive
– not too much – nor too little
The VLT® HVAC Drive is built on
Danfoss’ modular concept. Real
plug-and-play adding and
exchanging of options. Just upgrade
instead of buying a new drive.
1
Fieldbus option
– Advanced BACnet
– LonWorks
– Profi bus
– PROFINET
– DeviceNet
2
Local Control Panel (LCP)
Choose numerical,
graphical or no display
3
I/O option
– General Purpose I/O
(3DI + 2AI + 2DO + 1AO)
– Analog I/O option
(3AI (0 – 10 V / PT1000 /
NI 1000) + 3AO (0 – 10 V))
– Relay output (3 x relays)
4
24 V supply option
5
RFI fi lter
Built-in RFI fi lter for long
motor cables compliant with
the IEC 61800-3 and EN 55011
standards.
6
AC mains disconnect
(Factory mounted option)
7
Input mains option
Various input plate confi gurations
are available including mains
switch (disconnect), or RFI fi lter.
Input plates are fi eld adaptable if
options need to be added after
installation.
8
Unique cooling concept
– No ambient air fl ow over the
electronics up to 90 kW
– Above 90 kW, designed with back
channel cooling (85% heat
dissipated via back channel)
9
Durable in aggressive
environments
In some HVAC applications, it is
recommended to protect the drive
with coated PCB’s. VLT® HVAC
Drive is designed for level 3C2
according to IEC 60721-3-3.
Protection level 3C3 is optionally
delivered from factory.
This option off ers signifi cantly
improved protection against
chlorine, hydrogen sulphide,
ammonia and other corrosive
environments.
VLT® quality up to 1.4 MW
The VLT® HVAC Drive is available
from 1.1 kW to 1.4 MW.
Drive experience since 1968 lies
behind the intelligent design of VLT®
drives.
All enclosures are mechanically
designed with focus on:
– Robustness
– Easy access and installation
– Intelligent cooling
– High ambient temperatures
2
The modular design of the
VLT® HVAC Drive allows even highly
customised drives to be mass
produced and factory tested.
Plug-and-play options make
upgrading easy and
ensure fl exibility.
1
9
7
5
8
3
4
6