1
2
3
4
CC-000203
1
2
4
3
C
ondensing t
emper
atur
e (°C
)
Evaporating temperature (°C)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
30-140rps
30-120rps
C
ondensing t
emper
atur
e (°F)
41
50
59
68
77
86
95
104
113
122
131
140
149
158
Danfoss
OE-000001
Evaporating temperature (°F)
-40
-31
-22
-13
-4
5
14
23
32
41
50
59
68
77
86
Pressure switches
Pressure sensor
Discharge thermostat
Temperature sensor
Protection
Control
Example 1 with limited speed range from 30rps (1800rpm) to 120rps (7200rpm)
Safeties required
High pressure switch, Low pressure switch, Discharge gas thermostat set @135°C (275°F) if
necessary see Discharge temperature protection.
Drive setting
Adjust the minimum and maximum reference (speed setpoint) limits accordingly:
Par. 3-02 Minimum reference 1800 rpm (30 rps).
Par. 3-03 Maximum reference 7200 rpm (120 rps).
Envelope control
The unit controller continuously measures evaporating and condensing temperatures in order to
maintain the compressor within the envelope independently of compressor speed.
© Danfoss | Climate Solutions | 2023.08
AB392939083370en-000202 | 35
Scroll compressors, VCH115 | Application