User manual
2920 1456 03
34
18.3 Protections
Minimum
Nominal
Maximum
Compressor element outlet temperature
5)
°C 50
11)
110 119
(shut-down warning level)
Compressor element outlet temperature
5)
°C
111
120
120
(shut-down level)
Oil separator (pressure difference)
bar
0
1
2
6)
(shut-down warning level)
Oil separator (delay at signal)
7)
sec
0
10
20
For Full-Feature also
8)
:
Dewpoint warning temperature
°C
0
25
99
Delay at signal
7)
sec
0
3
255
Delay at starting
9)
sec
0
255
255
On water-cooled compressors also:
Cooling water inlet temperature (warning
level)
°C 0
50
99
Delay at warning signal
7)
sec
0
0
255
Delay at start
10)
sec
0
0
255
Cooling water outlet temperature (warning
level)
°C 0
60
99
Delay at warning signal
7)
sec
0
0
255
Delay at start
10)
sec
0
0
255
18.4 Service plan
Minimum
Nominal
Maximum
Service plan A (running hours)
- compressors filled with Food grade oil
hr
12)
2000
12)
- compressors filled with Roto-injectfluid
hr
12)
4000
12)
- compressors filled with HD Roto-fluid
hr
12)
8000
12)
Service plan B (running hours)
hr
12)
4000
12)
Service plan C (running hours)
hr
12)
8000
12)
Service plan D (running hours)
hr
12)
24000
12)
Footnotes chapter 18
1)
The settings for the Proportional band and Integration time are determined by experiment.
Altering these settings may damage the compressor. Consult Atlas Copco.
2)
Once the compressor is automatically stopped, it will remain stopped for the
minimum stop time
,
whatever happens with the air net pressure. It is recommended to program this setting at
minimum 20 seconds to prevent too-short stopping periods. If a lower setting should be required,
consult Atlas Copco.
3)
See section 1.4.
4)
In case of LAN control. See section 15. Consult Atlas Copco.
5)
The regulator does not accept illogical settings, e.g. if the warning level is programmed at 95 °C,
the minimum limit for the shut-down level changes into 96 °C. The recommended difference
between the warning level and shut-down level is 10 °C.
6)
Use Atlas Copco oil separators. The recommended maximum pressure difference is 1 bar.
