A
: Model number
B
: Serial Number
C
: Refrigerant
D
: Manufacturing year
E
: Supply voltage range
F
: max operating current
G
: Lubricant type and nominal charge
H
: Electronic frequency &
compressor frequency
Installation and servicing of the compressor by qualified personnel only. Follow these instructions and sound refrigeration engineering
practice relating to installation, commissioning, maintenance and service.
The compressor must only be
used for its designed purpose(s)
and within its scope of application
(refer to «operating limits»). Consult
Application guidelines and datasheet
available from cc.danfoss.com
Never operate
c o m p r e s s o r
without terminal
box cover in place
and secured.
Under all circumstances,
the EN378 (or other applicable
local safety regulation)
requirements must be fulfilled.
Wear protective goggles and
work gloves.
The compressor must
be handled with
caution in the vertical
position (maximum
offset from the
vertical : 15°).
The compressor is delivered under
nitrogen gas pressure (between
0.3 and 0.4 bar / 4 and 6 psi). Do
not disassemble bolts, plugs,
fittings, etc... unless all pressure
has been relieved from the
compressor.
A
B
C
D
E
F
G
H
Operating limits
Quick connect spade terminals
push
push
push
Electrical connections
All the above limits, temperatures and speeds, are secured by parameters in the drive and application controller softwares.
VLZ028 - VLZ044 compressors can be
powered by the dedicated variable speed
drive CDS803.
When Danfoss drive is selected, check carefully
for compatibility between compressor model
and variable speed drive.
Compressor
model
Variable speed drive
rated power output
VLZ028-035-044
7.5 kW
Evaporating Temperature ºC
VLZ R448/449A Operating Map
Condition:135ºC Max DLT
Condensing
Temperature ºC
-35
0
10
20
30
40
50
60
70
50-100rps
RGT20
SH10K
30-100rps
-30
-25
-20
-15
-10
-5
0
5
10
15
Evaporating Temperature ºC
VLZ R404A Operating Map
Condition:135ºC Max DLT
Condensing
Temperature ºC
-35
0
10
20
30
40
50
60
70
50-100rps
RGT20
SH10K
30-100rps
-30
-25
-20
-15
-10
-5
0
5
10
15
Instructions
VLZ028-VLZ044
inverter compressors
1 | © Danfoss | DCS (CC)| 2017.07
8510286P01B - FRCC.PI.039.A3.02
