User manual

Index
1. Introduction .............................................................................................................................................................................................................................................. 7
1.1 General description .................................................................................................................................................................................................................... 7
1.2 Codes ............................................................................................................................................................................................................................................. 7
1.3 Accessories .................................................................................................................................................................................................................................... 7
2. Installation ................................................................................................................................................................................................................................................. 9
2.1 Type of fixing and dimensions ................................................................................................................................................................................................. 9
2.2 Operational layouts..................................................................................................................................................................................................................... 9
2.3 µC
2
SE wiring diagram .............................................................................................................................................................................................................. 10
2.4 I/O board wiring diagram....................................................................................................................................................................................................... 10
2.5 Optional connections .............................................................................................................................................................................................................. 10
2.6 Inputs/outputs labelling .......................................................................................................................................................................................................... 10
2.7 Connection with CONV0/10VA0 and CONVONOFF0 modules (accessories) .......................................................................................................... 11
2.8 Installation .................................................................................................................................................................................................................................. 11
2.9 Programming key (copy of the set-up) ............................................................................................................................................................................... 12
3. User interface ........................................................................................................................................................................................................................................ 13
3.1 Display ........................................................................................................................................................................................................................................ 13
3.2 Keypad ........................................................................................................................................................................................................................................ 13
3.3 Example: timer reset ................................................................................................................................................................................................................ 13
3.4 Programming ............................................................................................................................................................................................................................ 14
3.5 Menu structure ......................................................................................................................................................................................................................... 14
4. Commissioning ..................................................................................................................................................................................................................................... 15
4.1 Firmware version ...................................................................................................................................................................................................................... 15
4.2 Configuration ............................................................................................................................................................................................................................ 15
4.3 Minimum and maximum fan speed calculation ............................................................................................................................................................... 16
5. Functions ................................................................................................................................................................................................................................................ 17
5.1 Set point ..................................................................................................................................................................................................................................... 17
5.2 Probes (analogue inputs) ....................................................................................................................................................................................................... 17
5.3 Probe reading ............................................................................................................................................................................................................................ 18
5.4 Digital inputs ............................................................................................................................................................................................................................. 18
5.6 Analogue outputs ..................................................................................................................................................................................................................... 19
5.7 Compensation ........................................................................................................................................................................................................................... 19
5.8 Low load ..................................................................................................................................................................................................................................... 19
6. Control .................................................................................................................................................................................................................................................... 21
6.1 Anti-freeze .................................................................................................................................................................................................................................. 21
6.3 Anti-freeze automatic switch-on ........................................................................................................................................................................................... 21
6.3 Anti-freeze with EVD
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............................................................................................................................................................................................................... 21
6.4 Compressors management ................................................................................................................................................................................................... 21
6.5 Pump management ................................................................................................................................................................................................................. 23
6.6 Compressor – evaporator pump/valve delays .................................................................................................................................................................. 24
6.7 Fan management ..................................................................................................................................................................................................................... 24
6.8 Hot gas bypass .......................................................................................................................................................................................................................... 25
6.9 Pump down ............................................................................................................................................................................................................................... 25
6.10 Heaters management .............................................................................................................................................................................................................. 26
7. Parameters table ................................................................................................................................................................................................................................... 27
7.1 Parameters table µchiller
2
SE for process chiller ................................................................................................................................................................ 27
7.2 Variables accessible only by supervision ............................................................................................................................................................................ 34
8. Alarms ..................................................................................................................................................................................................................................................... 35
8.1 Type of alarms .......................................................................................................................................................................................................................... 35
8.2 Alarms description ................................................................................................................................................................................................................... 36
8.3 Alarm digital inputs/outputs .................................................................................................................................................................................................. 38
9. Technical specifications ....................................................................................................................................................................................................................... 39
9.1 Software revisions .................................................................................................................................................................................................................... 40
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