Instructions
Danfoss inverter compressors
VZH028-VZH065
© Danfoss | DCS (CC) | 2019.03
AN233086441027en-000201 | 1
0
10
20
30
40
50
60
5
15
25
35
45
55
65
75
70
Co
nd
ensing
te
m
perature
(°
C)
VZH028-044 operating map - R410A (SH 6 K)
-40
-30
-20
-10
0
10
20
-35
-25
-15
-5
5
15
25
Evaporating temperature (°C)
15-100 rps
20-100 rps
30-100 rps
40-100 rps
60-100 rps
Voltage: 400-460V/208-230V
0
10
20
30
40
50
60
5
15
25
35
45
55
65
75
70
Co
nd
ensing
te
m
p
erature
(°
C
)
VZH052-065 operating map - R410A (SH 6 K)
-30
-20
-10
0
10
20
-35
-25
-15
-5
5
15
25
30
Evaporating temperature (°C)
1000-6600rpm
1800-6600rpm
2400-6000rpm
4200-6000rpm
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
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
Operating limits
Quick connect
spade terminals
VZH028-044
push
push
push
Electrical connections
All the above limits, temperatures and speeds, are secured by parameters in the drive and
application controller softwares.
VZH028 - VZH065 compressors can be
powered by the dedicated variable speed
drive or third party drive.
When Danfoss drive is selected, check carefully
for compatibility between compressor model
and variable speed drive.
Compressor
model
Driver
power
Driver
model
VZH028-J/G
6kW
CDS803
VZH035-J/G
7.5kW
CDS803
VZH044-J/G
10kW
CDS803
VZH028-H
7.5kW
CDS303
VZH035-H
11kW
CDS303
VZH044-H
11kW
CDS303
VZH052-J
11kW
CDS303
VZH065-J
11kW
CDS303
VZH052-G
11kW
CDS303
VZH065-G
15kW
CDS303
VZH052-H
15kW
CDS303
VZH065-H
22kW
CDS303
Note : These instructions replace instructions
in grommet kit.
VZH028-044
VZH052-065
Basic connections
-
Depending on the frequency converter
version, the physical position of individual
connectors may differ from below diagram.
-
Always make sure that the compressor
terminals T1, T2, T3 are connected to the
frequency converter terminals 96, 97, 98
respectively.
- The compressor motor cable must be shielded
and the armoured part must be connected to
ground on both cable ends; at the side of the
compressor and at the side of the frequency
converter.
- Use an EMC cable gland for cable installation and
perfect grounding; The metallic terminal box of
the compressor has a paint-free surface around
the connection hole for better conductivity.
- A low pressure safety switch is mandatory
to avoid compressor vacuum operation.
- At start-up, verify that the compressor rotates
in the right direction and pumps.
Ring connect screw terminals
C & Q terminal box type
VZH052-065
VZH67F Map
Solid line bondaries:
SH=6K
Dash line bondaries:
need ensure Tdis
<135°C
