Table of contents:
1. GENERAL. ................................................................................................................................... 2
1.1 Control circuit board STXC2.................................................................................................. 2
1.1.1 Function switch. ............................................................................................................... 2
1.2 MMI STCU. ............................................................................................................................ 3
1.3 MMI STCU description. ......................................................................................................... 4
1.4 Flow chart (option). ................................................................................................................ 6
1.5 Communication module STIO (option). ................................................................................. 7
2. USER’S GUIDE. ........................................................................................................................... 8
2.1 Main menu. ............................................................................................................................. 8
2.2 Display set-up. ........................................................................................................................ 9
2.2.1 Language selection. .......................................................................................................... 9
2.2.2 Adjusting the display contrast. ......................................................................................... 9
2.3 Time setting. ......................................................................................................................... 10
2.4 Filter configuration. .............................................................................................................. 11
2.5 Setting of manual running mode. .......................................................................................... 13
2.6 Setting a week program. ....................................................................................................... 14
2.6.1 Example of setting a week program. .............................................................................. 15
2.7 Alarms................................................................................................................................... 17
2.7.1 Critical failure reset. ....................................................................................................... 19
2.8 Reading the actual conditions ............................................................................................... 21
2.9 Reading technical data. ......................................................................................................... 21
3. CONTROL STRATEGY. ........................................................................................................... 26
3.1 Ventilation. ........................................................................................................................... 26
3.1.1 Fresh air reduction at low outside temperatures. ........................................................... 26
3.1.2 Filter surveillance. .......................................................................................................... 26
3.2 Temperature control. ............................................................................................................. 26
3.2.1 Heat recovery. ................................................................................................................ 27
3.2.2 Reheater coil. ................................................................................................................. 27
3.2.3 Cooling at summer nights. ............................................................................................. 27
3.3 Clean blowing function - heat wheel. ................................................................................... 29
3.4 De-icing function. ................................................................................................................. 29
3.5 Fan override. ......................................................................................................................... 29
3.5.1 HUMIDITY OVERRIDE ..................................................................................................... 29
3.6 Displacement of temperature set point. ................................................................................ 29
3.7 Extended operation. .............................................................................................................. 29
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