Danfoss VSH170AGANA Installation guide
INSTRUCTIONS
VSH COMPRESSORS
A
B
C
D
E
F
G
Oil injection control assembly
3 2 1
Oil injection
control valve
A: Model number
B: Serial number
C: Refrigerant
D: Supply voltage & Locked rotor current
70
65
60
55
50
45
(°C)
C
T
40
35
30
25
20
15
-30 -25 -20 -15 -10 -5 0 5 10 15 20
4
SH=6K
50 - 90 Hz
5 6
E: Housing service pressure
F: Factory charged lubricant
G: Compressor frequency & Max Must trip cur-
rent
R410A
50 - 90 Hz
30 - 90 Hz
T0 (°C)
Put the clip-on coil (1) with the gasket (2) over
the valve body (3) on the compressor
Oil injection control dismantling
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 http://cc.danfoss.com
1
Attach the connector (4) to the coil using the
delivered accessories (5) and (6).
Remove the clip-on coil by using a screw
driver.
Under all circumstances,
the EN378 (or other applicable
local safety regulation)
requirements must be
fulfilled.
FRCC.EI.005.A3.02 © Danfoss Commercial Compressors 09/10
The compressor is delivered under
nitrogen gas pressure (between 0.3
and 0.7 bar) and hence cannot be
connected as is; refer to the «assembly» section for further details.
220V
2 A max
Wire the connector as indicated.
The compressor must be
handled with caution in the
vertical position (maximum
offset from the vertical : 15°)
RELAY
2
CDS302
Instructions
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
L1 91 L1 W 98 T3
L2 92 L2 V 97 T2
L3 93 L3 U 96 T1
95 PE PE 99
39 39 Ana out COM
42 42 Ana out +
50 50 Ana in +10 V NC 03
53 53 Ana in 0 ± 10 V NO 02
54 54 Ana in 0 ± 10 V COM 01
55 55 Ana in COM
12 12 +24V COM 04
13 13 +24V
18 18 Dig in
19 19 Dig in
27 27 Dig in/out
29 29 Dig in/out
32 32 Dig in N- RS485 69 69
33 33 Dig in P+ RS485 68 68
20 20 Dig in COM COM RS485 61 61
37 37 Dig in
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
1
RELAY
NC 06
NO 05
the connection hole for better conductivity.
- A low pressure safety switch is mandatory
to avoid compressor vacuum operation.
- At start-up, verfiy that the compressor rotates
in the right direction and pumps.
Legends:
Ana: Analogue
Dig: Digital
in: Input
out: Output
COM: Common
NC: Normally-closed
NO: Normally-open
230 V
～
2 A max
91, 92, 93: 3 Phase mains input X X
Open loop Process loop
95: Earth X X
39, 42 Analogue output - 50: Analogue input - 53: PLC+ (0 to 10 V) X 54: Sensor - - X
55: PLC- X 12: HP/LP switch X X
12: External On/Off (NO) X X
13: Factory bridged to 37 X X
13: Sensor + - X
18: External On/Off (NO) X X
19: Digital input - 27: HP/LP switch (NC) / safety devices X X
29: Digital input/output - 32, 33 Digital input - 20: Digital input Common - 37: Factory bridged to 13 X X
98: To compressor terminal T3 X X
97: To compressor terminal T2 X X
96: To compressor terminal T1 X X
99: To compressor earth connection X X
02, 01: Relay 1 to oil solenoid valve X X
06, 05, 04: Relay 2 - 69, 68: RS485 Bus - 61: RS485 Bus Common - -
- Optional connection X : Mandatory connection
The CDS302 frequency converter is factory preset with parameters for the open loop control
principle. The process loop control principle
can be selected by changing parameters in the
«Quick menu».
Open loop:
0 - 10 V control
Frequency converter in slave mode
Process loop:
4 - 20 mA control
Frequency converter under own PID controller
2
FRCC.EI.005.A3.02 © Danfoss Commercial Compressors 09/10
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