industrie technik evolution AHU-XXXSX1 series User manual

05/03/2018 Version 1.0.4 EN
ROOM CONTROLLER
EVOLUTION
SERIES AHU-xxxSx1
USER MANUAL

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1. Technical features........................................................................................................................................6
2. Code selection..............................................................................................................................................6
3. Display, keypad and icons ..........................................................................................................................7
4. Quick access parameter setting .................................................................................................................8
• Keypad lock......................................................................................................................................................................................... 8
• Switch on and off................................................................................................................................................................................. 8
• Setpoint and setpoint offset conguration ........................................................................................................................................... 9
• Fan operating mode ............................................................................................................................................................................ 9
• MODE button functionality................................................................................................................................................................. 10
5. DATE and TIME setting (Model AHU-xxCSx1) .........................................................................................12
6. TIMERPERIODSoperationandconguration(ModelAHU-xxCSx1) ...................................................12
7. Duplication of TIMER PERIODS (Model AHU-xxCSx1) ...........................................................................15
8. Control sensors..........................................................................................................................................16
9. Operating setpoint, ECONOMY/BOOST, HOLIDAY MODES ..................................................................17
10. Batteries for temperature and humidity control......................................................................................20
11. Logic of heating and cooling batteries ....................................................................................................22
• 2-pipe HEATING controller (014=0 or 1) ........................................................................................................................................... 22
• 2-pipe HEATING control (014=0 or 1) without mid-season mode (013=0) ........................................................................................ 23
• 2-pipe COOLING control (014=0 or 1) with mid-season mode (013=1) ............................................................................................ 24
• 4-pipe controller (014=3 or 4) ............................................................................................................................................................ 25
• Cascade control (014=2) ................................................................................................................................................................... 28
12. Mixed-use valve..........................................................................................................................................30
13. Post-heating battery logic .........................................................................................................................31
• Post-heating operation or additional modulating heating stage: ....................................................................................................... 31
• Post-heating operation or additional on/off heating stage:................................................................................................................ 31
• Modulating integration operation:...................................................................................................................................................... 32
• Integration on/off operations:............................................................................................................................................................. 32
14. Supplylimitsfunctionwithxed-pointcontrol.......................................................................................33
• Minimum limit: ................................................................................................................................................................................... 33
»Low limit in heating mode with modulating control:...................................................................................................................... 33
»Low limit in heating mode with on-off control:.............................................................................................................................. 33
»Low limit in cooling mode with modulating control:...................................................................................................................... 34
»Low limit in cooling mode with on-off control: .............................................................................................................................. 34
• Maximum limit: .................................................................................................................................................................................. 35
»High limit in heating mode with modulating control:..................................................................................................................... 35
»High limit in heating mode with on-off control: ............................................................................................................................. 35
»High limit in cooling mode with modulating control: ..................................................................................................................... 36
»High limit in cooling mode with on-off control:.............................................................................................................................. 36
15. Control with setpoint compensation........................................................................................................37
• Compensation in 2-pipe heating mode or 4-pipe mode: ................................................................................................................... 37
• Compensation in the 2-pipe cooling mode:....................................................................................................................................... 38
16. Dehumidication ........................................................................................................................................39
• Use of the cooling battery for dehumidication: ................................................................................................................................ 39
• Using a modulating dehumidier:...................................................................................................................................................... 40
• Using an on/off dehumidier:............................................................................................................................................................. 41
• Using an external damper regulated on dehumidication: ................................................................................................................ 41
• Using a modulating fan regulated on dehumidication: .................................................................................................................... 41
TABLE OF CONTENT

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17. Humidication ............................................................................................................................................42
• Using a modulating humidier:.......................................................................................................................................................... 42
• Using an on/off humidier:................................................................................................................................................................. 43
• humidication authorization for humidier not managed by the controller: ....................................................................................... 43
18. Humidity supply limits function................................................................................................................44
• Low dehumidication limit: ................................................................................................................................................................ 44
»Low limit in dehumidication mode with modulating control: ....................................................................................................... 44
»Low limit in dehumidication mode with on/off control:................................................................................................................ 44
• Upper humidication limit: ................................................................................................................................................................. 45
»High limit in humidication mode with modulating control:........................................................................................................... 45
»High limit in humidication mode with on/off control: ................................................................................................................... 45
19. Temperature/humidity control priority .....................................................................................................46
• Temperature priority, 212=0:.............................................................................................................................................................. 47
»Temperature setpoint not reached: .............................................................................................................................................. 47
»Temperature setpoint reached, control of humidity:..................................................................................................................... 48
• Priority humidity, 212=1: .................................................................................................................................................................... 49
»Humidity setpoint not reached: .................................................................................................................................................... 49
»Humidity setpoint reached, temperature control: ......................................................................................................................... 50
20. Free cooling/heating conditions...............................................................................................................51
• Free cooling conditions: .................................................................................................................................................................... 51
• Free heating conditions:.................................................................................................................................................................... 51
21. Regulation with free cooling, free heating...............................................................................................53
• Operation with on/off bypass damper for cross-ow heat exchanger ............................................................................................... 53
• Cooling operation using free cooling:................................................................................................................................................ 54
»Operation with modulating damper and modulating cooling valve:.............................................................................................. 54
»Operation with bypass modulating damper without cooling valve: .............................................................................................. 54
»Operation with on/off damper and cooling modulating valve: ...................................................................................................... 55
»Operation with on/off bypass damper and cooling modulating valve:.......................................................................................... 55
»Operation with on/off bypass damper without cooling valve:....................................................................................................... 56
»Operation with on/off damper and on/off cooling valve:............................................................................................................... 56
»Operation with on/off bypass damper and on/off cooling valve: .................................................................................................. 57
»Operation with modulating damper and on/off cooling valve: ...................................................................................................... 57
• Heating operation using free heating: .............................................................................................................................................. 59
»Operation with modulating damper and modulating heating valve: ............................................................................................. 59
»Operation with modulating bypass damper without heating valve............................................................................................... 59
»Operation with on/off damper and modulating heating valve:...................................................................................................... 60
»Operation with on/off bypass damper and modulating heating valve: ......................................................................................... 60
»Operation with on/off bypass damper without heating valve:....................................................................................................... 61
»Operation with on/off damper and on/off heating valve: .............................................................................................................. 61
»Operation with on/off bypass damper and on/off heating valve:.................................................................................................. 62
»Operation with modulating damper and on/off heating valve:...................................................................................................... 62
• Free cooling in winter: ....................................................................................................................................................................... 64
»Operation with modulating damper: ............................................................................................................................................ 64
»Operation with on/off damper: ..................................................................................................................................................... 64
»Operation with on/off bypass damper: ........................................................................................................................................ 65
• Free heating in the summer: ............................................................................................................................................................. 66
»Operation with modulating damper: ............................................................................................................................................ 66
»Operation with on/off damper: ..................................................................................................................................................... 66
»Operation with on/off bypass: ..................................................................................................................................................... 67
22. Operating mode of the fans ......................................................................................................................68
• On/off type fans with one, two or three speeds:................................................................................................................................ 68
• Modulating fans:................................................................................................................................................................................ 68
»Manual control of speed (009=0): ................................................................................................................................................ 69
»Control of speed based on CO2 (009=1):..................................................................................................................................... 70
»Control of speed based on temperature (009=2): ........................................................................................................................ 71
»Control of speed based on temperature ON/OFF (009=3): ......................................................................................................... 73
»Control of speed based on temperature and CO2 (009=4):.......................................................................................................... 75
»Control of speed based on pressure with direct action (009=5):.................................................................................................. 75
»Control of speed based on pressure with reverse action (009=6): .............................................................................................. 75
»Control of speed based on dehumidication (009=7): ................................................................................................................. 76
23. Damper control ..........................................................................................................................................77
• On/off damper: .................................................................................................................................................................................. 77
»Regulation of on/off damper based on free cooling/heating ........................................................................................................ 78
»Regulation of on/off damper based on air quality ........................................................................................................................ 78

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»Regulation of on/off damper based on free cooling/heating and CO2......................................................................................... 79
»Regulation of on/off damper based on dehumidication.............................................................................................................. 79
• Modulating damper:........................................................................................................................................................................... 80
»Regulation of modulating damper based on free cooling/heating................................................................................................ 81
»Regulation of modulating damper based on CO2........................................................................................................................ 81
»Regulation of modulating damper based on free cooling/heating and CO2...............................................................................................................................................81
24. Heat exchanger ..........................................................................................................................................83
• Conditions for recovery: .................................................................................................................................................................... 83
• Cross-ow heat exchanger:............................................................................................................................................................... 84
• Double battery heat exchanger: ........................................................................................................................................................ 86
»Operation with modulating bypass heat exchanger and modulating cooling valve: .................................................................... 86
»Operation with modulating bypass heat exchanger and on/off cooling valve: ............................................................................. 86
»Operation with modulating bypass heat exchanger without cooling valve:.................................................................................. 87
»Operation with on/off bypass heat exchanger and cooling modulating valve: ............................................................................. 88
»Operation with on/off bypass heat exchanger and on/off cooling valve:...................................................................................... 88
»Operation with on/off bypass heat exchanger without cooling valve: .......................................................................................... 89
»Operation with modulating bypass heat exchanger and modulating heating valve: .................................................................... 89
»Operation with modulating bypass heat exchanger and on/off heating valve:............................................................................. 90
»Operation with modulating bypass heat exchanger without heating valve: ................................................................................. 91
»Operation with on/off bypass heat exchanger and heating modulating valve:............................................................................. 92
»Operation with on/off bypass heat exchanger and heating on/off valve: ..................................................................................... 92
»Operation with on/off bypass heat exchanger without heating valve:.......................................................................................... 93
• Rotary on/off heat exchanger:........................................................................................................................................................... 94
»Operation with modulating bypass heat exchanger and modulating cooling valve: .................................................................... 94
»Operation with modulating bypass heat exchanger and on/off cooling valve: ............................................................................. 95
»Operation with modulating bypass heat exchanger without cooling valve:.................................................................................. 95
»Operation with on/off bypass heat exchanger and cooling modulating valve: ............................................................................. 96
»Operation with on/off bypass heat exchanger and on/off cooling valve:...................................................................................... 97
»Operation with on/off bypass heat exchanger without cooling valve: .......................................................................................... 97
»Operation with modulating bypass heat exchanger and modulating heating valve: .................................................................... 98
»Operation with modulating bypass heat exchanger and on/off heating valve:............................................................................. 99
»Operation with modulating bypass heat exchanger without heating valve: ................................................................................. 99
»Operation with on/off bypass heat exchanger and heating modulating valve:........................................................................... 100
»Operation with on/off bypass heat exchanger and heating on/off valve: ................................................................................... 101
»Operation with on/off bypass heat exchanger without heating valve:........................................................................................ 101
• Modulating rotary heat exchanger:............................................................................................................102
»Operation with on/off bypass heat exchanger and cooling modulating valve: ........................................................................... 102
»Operation with on/off bypass heat exchanger and cooling on/off valve:.................................................................................... 103
»Operation with on/off bypass heat exchanger without cooling valve: ........................................................................................ 104
»Operation with on/off bypass heat exchanger and heating modulating valve:........................................................................... 104
»Operation with on/off bypass heat exchanger and heating on/off valve: ................................................................................... 105
»Operation with on/off bypass heat exchanger without heating valve:........................................................................................ 106
25. Frost protection operation of the heat exchanger ................................................................................108
26. Frost protection operation of the heating battery.................................................................................109
27. Anti-condensation function ....................................................................................................................109
28. Timer extension or forced presence modes..........................................................................................109
29. Dirtylter ..................................................................................................................................................110
30. Summertime changeover ........................................................................................................................110
31. AI3 sensor used as 0...10 V input ...........................................................................................................110
32. Forced outputs via Modbus .................................................................................................................... 111
33. Alarms .......................................................................................................................................................112
34. Parameter factory settings (level 1 password)......................................................................................114
35. Congurationofinstallerparameters(level2password)....................................................................120
36. Digital and analogue input logic.............................................................................................................126
• Digital inputs DI1 and DI2................................................................................................................................................................ 126
• Analogue inputs............................................................................................................................................................................... 128
37. Visualizzazione stato ingressi/uscite .....................................................................................................133
38. Resetting the default parameters ...........................................................................................................135
39. USB connection .......................................................................................................................................136
40. Jumperconguration ..............................................................................................................................136
41. Modbus (for AHU-xMxSx1 models) ........................................................................................................137

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• MODBUS VARIABLES FOR CONTROLLER STATUS:.................................................................................................................. 137
• MODBUS VARIABLES FOR OPERATING PARAMETERS............................................................................................................ 141
• Default parameters reset via MODBUS .......................................................................................................................................... 154
• Clock setting via MODBUS ............................................................................................................................................................. 154
• MODBUS communications alarm.................................................................................................................................................... 154
• MODBUS connection diagram ........................................................................................................................................................ 155
42. Electrical connections .............................................................................................................................156
43. Dimensions...............................................................................................................................................158
44. Mounting instructions .............................................................................................................................158

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AHU room controller
1. Technical features
Power: 110...230 Vca ±10%, 50/60 Hz
Power consumption: max 1.3W
Operating temperature: 0 - 50°C
Display: backlit LCD display
Inputs: 2 potential free contacts
2 or 3 NTC10K sensors
     USBforparametercongurationandsoftwareupdates
Outputs: 3 analogue outputs 0... 10 V (RL> 10K) depending on model
5 SPST relays, 250 V AC, 3 A (AC1) depending on model
Communications: Modbus RTU (Slave) depending on model
Temperature reading range: -15 - 90°C
Dimensions: 128 x 80 x 55.5 mm
Installation:   3moduleush-mountedbox
Protection class: IP30, class 2
EU compliance standard: EN 60730-1, EN 61000-6-3, EN 61000-6-1
2. Code selection
Room controller:
AHU - x x x Sx 1
Version:
1 digital output + 3 analogue outputs + 3 analogue inputs
2 digital outputs + 2 analogue outputs + 3 analogue inputs
3 digital outputs + 1 analogue output + 3 analogue inputs
3 digital outputs + 2 analogue outputs + 2 analogue inputs
5 digital outputs + 0 analogue outputs + 3 analogue inputs
0
1
2
3
4
Communications:
Withoutbus
Modbus
S
M
Clock:
Withoutclock
Withclock
S
C
Internal sensor:
Temperature
Temperature+humidity
T
H

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3. Display, keypad and icons
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
Display A
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
Display B
On/Off
ashing Timer extension on
continuously displayed Clock setting
Economy or boost function on
General alarm
Communications alarm
Parameters menu
Work season
Dirtylteralarm
Cooling or free cooling on
ashing Battery frost protection or heatexchanger frost protection on
ashing Condensate alarm
continuously displayed Dehumidicationon
ashing Airchangerequest
continuously displayed Humidicationon
Heatingorfreeheatingon
Electric resistance on
Holiday function
ashing Freecoolingorfreeheatingon
Fan speed
M = manual speed selection
A = automatic speed selection

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ON=heatrecoveryon
OFF=heatrecoveryoff
OFFblinking=heatrecoveryoffforfreecooling/heatingorduetoheat
exchangerfrostprotectionalarm
ON/OFFalternatingblinking=modulatingbypassdamperoftheheat
exchangerwithcross-owpartiallyopen(freeheatingorfreecooling
in progress)
%rH
rH
485
°C°F
set
ON
OFF
%
M
A
HEAT
COOL
ESC
M
O
D
E
Display C time zone number on
Freecoolingorfreeheatingon
Keyboard
On/Off,navigationandconrmkey
Changesetpoint,navigationandvalueentrykeys
ESC
Speed type key and ESC operation in navigation
M
O
D
E
Manualseasonoroccupationchangekeyoroperatingmode
(see “MODE button functionality” page 10)
4. Quick access parameter setting
Thecontrollercarriesoutthefollowingoperationswithasimplebuttonpress:
• Switchonandoff
• Congurationofthesetpointorsetpointoffset
• Fan operating mode
• MODE button functionality
TheMODEbuttoncanbeassignedtoonequickaccessfunctionandtwonormalaccessfunctions,dependingontheparameter
195 (see “MODE button functionality” page 10)
195=0:seasonchange(ifitislocal,for2-pipesystems)
195=1: timer extension.
195=2:operatingmode(withoutclock,usingthetimer,holiday)
• Keypad lock
Tolockthekeypad,presstheESC
M
O
D
E
buttonsatthesametime;thedisplayshowsthetextLK for one second.
Whenanybuttonispressed,itisnolongerpossibletoaccesstheparametersandthedisplayshowsLK.
Tounlockthekeypad,presstheESC
M
O
D
E
buttonsagain;thedisplayshowsNLK for one second.
• Switch on and off
Theappliancecanbeswitchedonoroffin4differentways:
-manuallyusingthekeypad,
- from an external contact,
-usingthetimer,
- from Modbus
Iftheunithasbeenswitchedoffbyremotecontact,itcanonlyberestartedbyinsertingthecontactintheONposition.
IftheremotecontactisintheONposition,210=0,
itispossibletoturntheunitonwithasourceotherthantheoneusedtoturnitoff.
Example:
Iftheunithasbeenswitchedoffbythetimer,itcanberestartedmanuallyorviamodbusorbyexternalcontact.
IftheremotecontactisintheONposition,210=1,
iftheunithasnotbeenswitchedoffmanually(viamodbusortimer),itcanberestartedwithanysource.Butiftheunit
hasbeenswitchedoffmanually,itcanonlyberestartedmanually.
Toputtheunitintheon/offpositionmanually,pressthe button until ON or OFF is displayed.
Tousetheexternalcontactasawayofswitchingtheuniton/off,congurethecontactas“RemoteOn/Off”(015=2 (DI1)

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or 017=2 (DI2) or 019=9 (AI1 used as DI) or 021=9 (AI2 used as DI) or 023=9 (AI3 used as DI)).
Example for digital input 1 (015=2):
Unit ON= (016=0)
Unit OFF= (016=0)
Unit ON= (016=1)
Unit OFF= (016=1).
Toswitchtheuniton/offusingthetimerperiods,congurethe199=1parameterandsetthetimerswitchontimerperiods
(see “6. TIMER PERIODS operation and conguration (Model AHU-xxCSx1)” page 12) To switch the unit on/off via
modbusfunction,writeintheregister9267(see“41. Modbus (for AHU-xMxSx1 models)” page 137.
Iftheapplianceisswitchedoff,thedisplayshowsthemodeinwhichitwasswitchedoff.
OFF
MA MA=manuallyswitchedoffusingkeypad.
OFF
reM rEM=switchedoffusingremotecontact.
OFF
MOD MOd=switchedoffbymodbus.
OFF
tiMb tiMb=switchedoffusingthetimerperiod(if199=1).
Iftheapplianceisswitchedoff,alloftheoutputsaredeactivatedexceptforthemaincontroloutputinheatingmodeifthe
frost protection function is activated (see “26. Frost protection operation of the heating battery” page 109).
• Setpoint and setpoint offset conguration
Dependingonthecontrolmethodchosen,theclimatesetpointisconguredmanuallyorcalculatedautomatically.
-Forcompensationcontrolsbasedontheexternaltemperature,theoperatingsetpointisautomaticallycalculatedbased
onthecompensationparametersandtheexternaltemperature(see“15. Control with setpoint compensation” page 37).
Bypressingthe or button,theusercanonlyviewthecompensatedcalculatedsetpoint.
-Fortheothertypesofcontrol,cascadeorxedpoint2-pipeor4-pipe,itispossibletomodifythe107 setpoint(forthe
2-pipeoperationinheatingmode),108(forthe2-pipeoperationincoolingmode)or109(forthe4-pipefunctionality)if
204=0orachangeof±x°Cfromthesetpointif204=1bypressingthe or buttons.
Whenasetpointischanged,the“set”iconashes.Thevaluecanbechangedusingthe or buttons.Anychange
is automatically saved.
If 204=1(COMFORTfunctionactivated),achangeof±x°Cfromthesetpointisdenedbytheparameter205.
Thisfunctionisusedwhentheapplicationneedstosetasetpointwhichisnotaccessibletotheuser.
Bypressingthe or button,thevalueofthesetpointoffsettobeappliedtotheoperatingsetpointisdisplayed.The
“°C” or “°F”iconashes,basedonthecurrentoperatingunit.Thevaluecanbechangedusingthe or button;
everychangeisautomaticallysaved.
Toexitthesetpointcongurationmenu,wait4secondsorpresstheESC button.
• Fan operating mode
Thisparagraphcanbeappliedonlywhenoneormoremodulatingfanarepresent,orwitha2,3-speedon/offventilator
and manualy regulated (009=0)
Press button ESC ,theicon asheswiththeindicationofthefancoiloperatingmodeondisplay B.
Press button ESC oneormoretimestoselectthefanoperatingmode:
SPE1=controlwithspeed1,
SPE2=controlwithspeed2,
SPE3=controlwithspeed3.
Thevalueisautomaticallysaved.
Toexitthemenu,waitfor4secondsuntildisplay Bstopsashing.

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• MODE button functionality
Dependingonthevalueofparameter195,thefunctionisselectedbyquickaccessbypressingtheMODEbutton.The
other2functionscan,however,beaccessedbypressingtheESC
M
O
D
E
buttons.
Access to the rapid function using the MODE button:
• If 195=0(quickaccesstothelocalseasonchangecongurationifnocontactisconguredasremoteseasonchange)
Pressthe
M
O
D
E
button,the“HEAT”(forheating)or“COOL”(forcooling)iconashesdependingonthecurrentconguration
andthesameashingtextappearsondisplay B.
Pressthe
M
O
D
E
buttontochangethesetting.Thevalueisautomaticallysaved.Toexitthemenu,waitfor4secondsorpress
theESC button.
• If 195=1(quickaccesstothetimerextensionconguration)
Theextended runningfunction extendsoperation with thebase setpointby excludingthe economyfunction andthe
“non-occupiedholiday”functionforatimecorrespondingtoparameter198ifthetimerfunctionparameter199=0.
With199=1(switch on/offusing thetimer)the timerextensionfunction enablescontinuedoperationin theONmode
byexcludingthetimerperiodsforaperiodoftimecorrespondingtoparameter198.
Pressthe
M
O
D
E
button, noOCashesonthedisplay B(tostopthetimerextensionifstarted)orOCandthe iconasheson
display B(toactivatethetimerextension).
Pressthe
M
O
D
E
buttontochangethesetting.Thevalueisautomaticallysaved.
Toexitthemenu,waitfor4secondsorpresstheESC button.
• If 195=2(quickaccesstotheoperatingmodeconguration)
Theoperatingmodefunctionisusedtoselectwhethertocontrolwithorwithoutthetimerperiods(iftheparameter199=0,
it is controlled using the timer periods see “6. TIMER PERIODS operation and conguration (Model AHU-xxCSx1)”
page 12) or with “non-occupied/holiday” mode (see “9. Operating setpoint, economy/BOOST, holiday modes”
page 17).
If 199=0thetimerperiodsarefunctioningfornormal/economy-boostoperation:
pushthe
M
O
D
E
button,
nOrMashesondisplay B(forcontrolwithoutthetimerperiods)or
tiMBashesondisplay Bandthe icon(fornormal/economy-boostcontrolusingthetimerperiods)or
HOLYashesondisplay Bandthe icon(forcontrolinthe“non-occupied/holiday”mode).
If 199=1thetimerperiodsarefunctioningforswitchingtheuniton/off:
pushthe
M
O
D
E
button,
nOrMashesondisplay B(forcontrolwithoutthetimerperiods)or
HOLYashesondisplay Bandthe icon(forcontrolin“non-occupied/holiday”mode).
Pressthe
M
O
D
E
buttononeormoretimestoselectthecontrolmode.Thevalueisautomaticallysaved.
Toexitthemenu,waitfor4secondsorpresstheESC button.

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Non-quick access to the functions using the keypad ESC
M
O
D
E
:
■ If the MODE button quick access function is set to local season change (195=0), to access the other functions,
pressthe ESC and
M
O
D
E
buttons at thesame timeto enter themenu forchanging the extendedrunning andoperating
mode functions:
Parameter Description Default Min Max
MOC
Timer extension
noOC=timer extension off
OC=withtimerextension(forthedurationcorrespondingtotheparameter
198
-Theeconomy/boostfunctionandthenon-occupied/holidayfunctionare
excluded if 199=0
-theappliancestaysswitchedonif199=1).
noOC noOC OC
MOD
Operatingmodewith199=0:
nOrM=operationwithouttimerperiods
tiMb=operationusingthetimerperiods
HOLY=non-occupied/holidayoperation
nOrM nOrM, tiMb, HOLY
Operatingmodewith199=1:
nOrM=operationwithouttimerperiods
HOLY=non-occupied/holidayoperation
nOrM nOrM, HOLY
Pressthe or buttontoselectaparameterandthe buttontoenterchangemode;display Basheswith
thecurrentparametervalue.
Thenpressthe or buttontochangethevalue.
Pressthe buttontosavetheconguration,ortheESC buttontoquitwithoutsavingthechanges.
Toexitthemenu,presstheESC button again or wait for about 10 seconds.
Ifthetimerextensionison,the iconashesforthetimesetinparameter198.
Ifthetimerextensionfunctionisnotactive,the icon is off.
■ IftheMODEbuttonquickaccessfunctionissettotimerextension(195=1),toaccessotherfunctions,presstheESC and
M
O
D
E
buttonsatthesametimetoenterthemenuforchangingtheoperatingmodeandtheseasonalchangefunction.
Parameter Description Default Min Max
MOD
Operatingmodewith199=0:
nOrM=operationwithouttimerperiods
tiMb=operationusingthetimerperiods
HOLY=non-occupied/holidayoperation
nOrM nOrM, tiMb, HOLY
Operatingmodewith199=1:
nOrM=operationwithouttimerperiods
HOLY=non-occupied/holidayoperation
nOrM nOrM, HOLY
SEA
Local season change (local season change conguration for 2-pipe
systems):
HEAT=heatingmode
CooL=cooling mode
HEAT HEAT COOL
Pressthe or buttontoselectaparameterandthe buttontoenterchangemode;display Basheswiththe
current parameter value.
Thenpressthe or buttontochangethevalue.
Pressthe buttontosavetheconguration,ortheESC buttontoquitwithoutsavingthechanges.
Toexitthemenu,presstheESC button again or wait for about 10 seconds.

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■ IftheMODEbuttonquickaccessfunctionissettooperatingmode(195=2),toaccesstheotherfunctions,presstheESC
and
M
O
D
E
buttonsatthesametimetoenterthemenuforchangingtheseasonalchangefunctionandtimerextension.
Parameter Description Default Min Max
SEA
Localseasonchange(localseasonchangecongurationfor2-pipe
systems):
HEAT=Heating mode
CooL=Cooling mode
HEAT HEAT COOL
MOC
Timer extension
noOC=timer extension off
OC=withtimerextension(forthedurationcorrespondingtotheparameter
198 theeconomy/boostfunctionandthenon-occupied/holidayfunction
are excluded if 199=0,theappliancestaysswitchedonif199=1).
noOC noOC OC
Pressthe or buttontoselectaparameterandthe buttontoenterchangemode;display Basheswiththe
current parameter value.
Thenpressthe or buttontochangethevalue.
Pressthe buttontosavetheconguration,ortheESC buttontoquitwithoutsavingthechanges.
Toexitthemenu,presstheESC button again or wait for about 10 seconds.
5. DATE and TIME setting (Model AHU-xxCSx1)
CLk
yMdH
y-r
2012
M-h
11
day
29
Hr.
11:37
Pressthe and buttonstogether.
CLK appears on display A and yMdH on display B.
Pressthe buttontoenterthedateandtimesettingmenu.
Parameter Description Min Max
CLk Date and time setting menu
Y-r Year 2012 2100
M-h Month 1 12
day Day 1 31
Hr. Time(hour) 0 23
Minutes 0 59
Pressthe or buttontoselectaparametertobemodiedandthe buttontoentereditmode;display Basheswith
thecurrentvalueoftheparameter.
Thenpressthe or buttontochangethevalue.
Pressthe buttontosavetheconguration,ortheESC buttontoquitwithoutsavingthechanges.
Toexitthemenu,presstheESC button again or wait for about 120 seconds.
Note: setting parameter 197=1fortheEuropeanzoneor197=2fortheUSAzone,theunitisabletoautomaticallyupdatefor
daylightsavingstime.Ifparameter197=0(otherregions),theautomaticupdatefordaylightsavingstimeisdisabled.
6. TIMER PERIODS operation and conguration (Model AHU-xxCSx1)
Depending on parameter 199,thetimerperiodscanbeassignedtonormal/economycontrol(199=0)ortoswitchingtheappli-
ance on/off (199=1).
It is possible to use up to 4 time zones per day.
• With199=0controlisnormalwithinanONtimerperiod(controlwithbasesetpoints).OutsideofONperiods,thecontroller
operates in economy/boost mode (see “9. Operating setpoint, economy/BOOST, holiday modes” page 17).

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Time
Time
Time
Time
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Time
OFF
ON
ECO
NO
ECO
NO
ECO
NO
ECO
ECO ECO
Timer
period 1
Timer
period 2
Timer
period 3
Timer
period 4
Operating
mode
ECO = economy/boost mode, NO ECO=normalmode(controlwithbasesetpoint).
• With199=1,inanONperiod,theapplianceisswitchedon.OutsidetheONperiods,thecontrollerisswitchedoff,andonly
thefrostprotectionfunctionisactivatedifparameter188=1.
Time
Time
Time
Time
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Time
OFF
ON
Timer
period 1
Timer
period 2
Timer
period 3
Timer
period 4
Operating
mode
OFF
ON
OFF OFF
ON ON
OFF=applianceswitchedoff,ON=applianceswitchedon.
Tooperateusingatimerperiod,setthestarttime(ON)andtheendtime(OFF).
Ifthestarttime(ON)isequalorprevioustotheendtime(OFF),thecorrespondenttimerperiodisexcluded.
Ifonetimerperiodfallswithinanothertimerperiod,therststarttimeandthelastendtimewillbeusedbythesystem.
To modify a timer period proceed as follows:
Pressthe and buttonstogether,themainmenuisdisplayed:
CLK
yMdH
Pressthe button,thefollowingscreenisdisplayed:

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WPR
1--7
Pressthe button,thescreenappearswiththenumber1ashingcorrespondingtotimerperiod1:
Tib
1
Pressthe or buttontoselectthetimerperiodtobemodied.
Pressthe buttonandthescreenisdisplayedshowingthedayoftheashingtimerperiod:
Mon
Pressthe or buttontoselecttherequiredday.
Pressthe button,thescreendisplaystheday,timerperiodnumberandthestartingtime(ON)oftheashingperiod:
Mon
06:00
1
Pressthe or buttontoselectthedesiredhour.
Pressthe button,thetimerperiodstartingtimestopsashingandissavedtothememory.Theminuteseldofthestartof
theselectedtimerperiodstartsashing.
Pressthe or buttontoselectthedesiredminutes.
Pressthe button,theminutesofthestartingtimeofthetimerperiodstopashingandaresavedtothememory.
Thescreenforsettingtheendtimeofthetimerperioddisplays:
Mon
08:00
1
Pressthe or buttontoselectthedesiredhour.
Pressthe button,thetimerperiodendtimestopsashingandissavedtothememory.Theminuteseldoftheendofthe
selectedtimerperiodstartsashing.
Pressthe or buttontoselectthedesiredminutes.
Pressthe button,theminutesoftheendtimeofthetimerperiodstopashingandaresavedtothememory.
Thescreenforselectingthetimerperioddayisdisplayed(ashing).
PresstheESC buttontoreturntothetimerperiodselectionmenu:
Tib
1
PresstheESC buttontoreturntothemainmenuorrepeattheproceduretosetanothertimerperiod.
Parameter Description Min Max
WPR Timer period settings menu
Tib Timer period selection 1 4
x
Dayoftheweek
Mon=Monday;
Tue=Tuesday;
Wed=Wednesday;
Thu=Thursday;
Fri=Friday;
Sat=Saturday;
Sun = Sunday
Mon Sun
ON Startoftimerperiod(hours) 0 23
Start of timer period (minutes) 0 59
OFF Endoftimerperiod(hours) 0 23
End of timer period (minutes) 0 59

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7. Duplication of TIMER PERIODS (Model AHU-xxCSx1)
Itispossibletocopythesettingsofthetimerperiodsofadayonanothersingledayoron5daysfromMondaytoFridayoron
2 days from Saturday to Sunday.
Tocopythetimerperiodsfromonedaytoanotherdayfollowtheproceduredescribedbelow.
Pressthe and buttonstogether,themainmenuisdisplayed:
CLK
yMdH
Pressthe button,thefollowingscreenisdisplayed:
Mo
Tu
Ve
Th
Fr
Sa
Su
MF
SS
Mo
Tu
Ve
Th
Fr
Sa
Su
Day to be copied: destination day
CTb
Mo:Mo
Pressthe button,thedaytobecopiedashes.
Selectthedaytocopywiththe and buttons.
Pressthe button,thedaytowhichtheperiodswillbecopiedstartstoash.
Ifyouset“MF”asthedestination,theselecteddaywillbecopiedtothedays from Monday to Friday.
If you set thedestinationas“SS”,theselectedday will be copied tothedaysofSaturdayandSunday.
Pressthe buttontomaketheduplicationorpresstheESC button to cancel.
Parameter Description Min Max
CTb Copy periods (Mo, tu, UE, tH, Fr, SA, Su)Mo SS
Mo Monday
Tu Tuesday
Ve Wednesday
Th Thursday
Fr Friday
Sa Saturday
Su Sunday
MF copytoMonday,Tuesday,Wednesday,ThursdayandFriday
SS copy to Saturday and Sunday

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8. Control sensors
Itispossibletosetregulationwith
-2-pipexedpoint(014=0)or4-pipexedpoint(014=3),
- 2-pipe compensated (014=1) or 4-pipe compensated (014=4),
- cascade (014=2).
Dependingonthetypeofcontroldesired,selecttheappropriatesensorsaccordingtothetablebelow:
Types of control Control sensor Settings
2or4-pipexedpoint
Room
Internal: 019≠1and021≠1and023≠1
and 106=0
Remote: 019=1 (AI1) or 021=1 (AI2) or
023=1 (AI3) and 106=100
Supply 019=2 (AI1) or 021=2 (AI2) or 023=2
(AI3)
2 or 4-tube compensation (*)
Room
Internal: 019≠1and021≠1and023≠1
and 106=0
Remote: 019=1 (AI1) or 021=1 (AI2) or
023=1 (AI3) and 106=100
Supply 019=2 (AI1) or 021=2 (AI2) or 023=2
(AI3)
Cascade Room + Supply
Roomwithinternalsensor:019≠1and
021≠1and023≠1and106=0
Roomwithremotesensor:019=1 (AI1)
or 021=1 (AI2) or 023=1 (AI3) and
106=100
Supply: 019=2 (AI1) or 021=2 (AI2) or
023=2 (AI3)
(*) Set an external sensor to carry out compensation: 019=3 (AI1) or 021=3 (AI2) or 023=3 (AI3).
Whenaremoteroomsensorisused,thesensorinsidethecontrollercanalsobeusedtocreatethecontrolsensor.Denethe
weight(parameter106)oftheremotesensorwithrespecttotheinternalsensor.Bythiswayoptimizedcontrolisachievedon
aroomwithdifferingtemperaturefromoneparttoanother.
Exampleswith019=1(sensorconnectedtoinputAI1denedastheremotecontrolsensor):
- parameter 106=0->theinternalsensorisonlytakenintoaccountifaremotesensorhasbeendened,
- parameter 106=100->theremotesensorisonlytakenintoaccount,whiletheinternalsensorisexcluded.
- parameter 106=25->theworkingtemperatureiscalculatedtakingintoaccountaweightof25%fortheremoteroomsensor,
andaweightof75%fortheinternalroomsensor.
Intheeventthatoneormoresensorsareconguredasremotecontrolsensors(019=1 and/or 021=1 and/or 023=1), only one
sensorisconsideredtobeassociatedwiththeinternalsensor:theonewiththehighestpriority.
Sensor AI1haspriorityoversensorAI2 and sensor AI2haspriorityoversensorAI3.
Note: if no analogue input is used as a remote sensor (019≠1and021≠1and023≠1),theinternalsensorisusedasthecontrol
sensor even if 106isnotequalto0.
Cascadecontrolmodeusesthecontrolsensorandtheroomsetpointtocalculatethesupplysetpoint.
Thecontrolisperformedonthesupplytemperature(see“11. Logic of heating and cooling batteries” page 22).
Itisessentialtoassociateasupplysensorwithoneofthesensorinputstobeabletousethistypeofcontrol:019=2 (AI1) or
021=2 (AI2) or 023=2 (AI3).

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9. Operating setpoint, ECONOMY/BOOST, HOLIDAY MODES
Ifoneofthedigitalcontactsisconguredasa“non-occupied/holiday”remotecontact015=3 (DI1) or 017=3 (DI2) or an ana-
logueinputisconguredasa“non-occupied/holiday”contact019=10 (AI1) or 021=10 (AI3) or 023=10(AI3)the“non-occupied/
holiday”modecanbeactivatedifthecorrespondingcontactisintheappropriateposition(see“36. Digital and analogue input
logic” page 126).
2-pipe systems (014= 0, 1):
Inthe“non-occupied/holiday”mode,theheatingsetpointisdecreasedby121(seethe2-pipeheatinggraph,WHS),the
cooling setpoint is increased by 121 (seethe2-pipecoolinggraph,WCS).
4-pipe systems (014=2, 3, 4):
Inthe“non-occupied/holiday”mode,theheatingactivationpointisdecreasedby121(see4-pipegraph,WHS)andthecool-
ing activation point is increased by 121(see4-pipegraph,WCS).
The iconisdisplayedtoindicatethatthe“non-occupied/holiday”modeisactive.
Ifoneofthedigitalcontactsisconguredasan“economyorboost”remotecontact015=4 (DI1) or 017=4 (DI2) or an analogue
input is congured as an economy/boost contact 019=11 (AI1) or 021=11 (AI3) or 023=11 (AI3), the economy or boost
modecanbeactivatedifthecorrespondingcontactisintheappropriateposition(see“36. Digital and analogue input logic”
page 126).
In“economy/boost”mode,thechoicebetweeneconomyorboostdependsonthesignalfromtheparameter120.
2-pipe systems (014= 0, 1):
If 120<0theboostfunctionisavailable:
Theheatingsetpointisincreasedby120(see2-pipeheatinggraph,WHS),thecoolingsetpointisreducedby120 (see
2-pipecoolinggraph,WCS)
If 120>0,theeconomymodeistakenintoaccount:
Theheatingsetpointisreducedby120(see2-pipeheatinggraphWHS),thecoolingsetpointisincreasedby120 (see 2-pipe
coolinggraph,WCS)
4-pipe systems (014=2, 3, 4):
If 120<0,theboostmodeisnotavailable:
The“boost”modeisnotavailablein4-pipeoperation.Theparameterisnotconsideredifnegative.
If 120>0,theeconomymodeistakenintoaccount:
In“economy”mode,theheatingactivationpointisreducedby120(see4-pipegraph,WHS)andthecoolingactivationpoint
is increased by 120(see4-pipegraph,WCS).
The“ECO”iconisdisplayedtosignalthe“economyorboost”mode.
The“non-occupied/holiday”modehaspriorityovertheeconomymodewhenbothmodesareactivated.

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2-pipe graph (analogue output, cooling mode) 2-pipe graph (digital output, cooling mode)
100
0
Temp.
OUT
108
100
0
Temp.
OUT
ON
OFF
Temp
OUT
108
ON
OFF
Temp
OUT
(120 or 121)
positive
(120 or 121)
positive
WCS
WCS
WCS
WCS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
100
0
Temp.
OUT
107
100
0
Temp.
OUT
ON
OFF
Temp
OUT
107
ON
OFF
Temp
OUT
(120 or 121)
positive
WHS
WHS
WHS
WHS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
(120 or 121)
positive
100
0
Temp.
OUT
WCS
BOOST
100
0
Temp.
OUT
WHS
BOOST
ON
OFF
Temp
OUT
120
negative
WCS
BOOST
ON
OFF
Temp
OUT
120
negative
WHS
BOOST
120
negative
120
negative
108: 2-pipe cooling setpoint
WCS: activation point, cooling mode
100
0
Temp.
OUT
108
100
0
Temp.
OUT
ON
OFF
Temp
OUT
108
ON
OFF
Temp
OUT
(120 or 121)
positive
(120 or 121)
positive
WCS
WCS
WCS
WCS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
100
0
Temp.
OUT
107
100
0
Temp.
OUT
ON
OFF
Temp
OUT
107
ON
OFF
Temp
OUT
(120 or 121)
positive
WHS
WHS
WHS
WHS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
(120 or 121)
positive
100
0
Temp.
OUT
WCS
BOOST
100
0
Temp.
OUT
WHS
BOOST
ON
OFF
Temp
OUT
120
negative
WCS
BOOST
ON
OFF
Temp
OUT
120
negative
WHS
BOOST
120
negative
120
negative
108: 2-pipe cooling setpoint
WCS: activation point, cooling mode
2-pipe graph (analogue output, heating mode) 2-pipe graph (digital output, heating mode)
100
0
Temp.
OUT
108
100
0
Temp.
OUT
ON
OFF
Temp
OUT
108
ON
OFF
Temp
OUT
(120 or 121)
positive
(120 or 121)
positive
WCS
WCS
WCS
WCS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
100
0
Temp.
OUT
107
100
0
Temp.
OUT
ON
OFF
Temp
OUT
107
ON
OFF
Temp
OUT
(120 or 121)
positive
WHS
WHS
WHS
WHS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
(120 or 121)
positive
100
0
Temp.
OUT
WCS
BOOST
100
0
Temp.
OUT
WHS
BOOST
ON
OFF
Temp
OUT
120
negative
WCS
BOOST
ON
OFF
Temp
OUT
120
negative
WHS
BOOST
120
negative
120
negative
107: 2-pipe heating setpoint
WHS: activation point, heating mode
100
0
Temp.
OUT
108
100
0
Temp.
OUT
ON
OFF
Temp
OUT
108
ON
OFF
Temp
OUT
(120 or 121)
positive
(120 or 121)
positive
WCS
WCS
WCS
WCS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
100
0
Temp.
OUT
107
100
0
Temp.
OUT
ON
OFF
Temp
OUT
107
ON
OFF
Temp
OUT
(120 or 121)
positive
WHS
WHS
WHS
WHS
ECONOMY
or
HOLIDAY
ECONOMY
or
HOLIDAY
(120 or 121)
positive
100
0
Temp.
OUT
WCS
BOOST
100
0
Temp.
OUT
WHS
BOOST
ON
OFF
Temp
OUT
120
negative
WCS
BOOST
ON
OFF
Temp
OUT
120
negative
WHS
BOOST
120
negative
120
negative
107: 2-pipe heating setpoint
WHS: activation point, heating mode

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4-pipe graph (analogue outputs)
100
0
Temp
.
OUT
109
100
0
Temp
.
OUT
109
ON
OFF
Temp
Outputs
BS4P
(I09)
ON
OFF
Temp
Outputs
BS4P
(I09)
(120 or 121)
positive
(120 or 121)
positive
(I12 or I13)(I12 or I13)
WCSWHS
WCSWHS
WCSWHS
WCSWHS
ECONOMY
or
HOLIDA
Y
ECONOMY
or
HOLIDAY
109: 4-pipe setpoint
WCS: activation point, cooling mode
WHS: activation point, heating mode
Note: the Boost function (120 negative) is not available in 4-pipe
mode.
Itispossibletodisplaytheoperatingsetpointbyconguringtheparameter193 or 194to6.Inthiscase,inheatingmode,the
value corresponding to WHSisdisplayed,incoolingmodethevaluecorrespondingtoWCS is displayed.
If no contacts are congured in “non-occupied/holiday” or “energy saving / boost” mode, and if the operating mode has
beensetmanuallywithtimerperiods(Mod=tiMb)andthetimerperiodfunction199=0 (see “4. Quick access parameter setting”
page 8), then regulation is controlled within the timer periods with the base setpoints. In this case, “display C” (see “3.
Display, keypad and icons” page 7) shows the active timer period. Outside of the timer period, economy/boost mode is
active.
Otherwise,thecontactorsensorstatusconguredin“non-occupied/holiday”or“economy/boost”modehaspriorityandthe
timer periods are not considered (AH-xxCSx1 models).
Ifnoneofthecontactsorsensorsareconguredin“non-occupied/holiday”or“economy/boost”modeandifoperatingmode
is in holiday mode (manually congured using quick access parameters →see “MODE button functionality” page 10),
thenregulationiscontrolledwiththeholidaymode.Otherwisethecontactorsensorstatusconguredinthe“non-occupied/
holiday”or“economy/boost”modehaspriorityoverthemanualconguration.
Whentimerextensionmodeisactivatedmanually,ittakespriorityoverenergysaving/boost,holiday(see“28. Timer extension
or forced presence modes” page 109)andthetimerperiodmodes(AHU-xxCSx1 models).

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10. Batteries for temperature and humidity control
ThecongurationfortheAHUbatteriesfortemperatureandhumiditycontroliscarriedoutusingthefollowingparameters
-heatingtypebattery002,
- cooling type battery 003,
-post-heatingtypebattery004.
-humidiertypebattery006.
-dehumidiertypebattery007.
Battery Type of battery Setting
Heating battery
Noheatingbattery 002=0
Modulating electrical resistance 002=1
Modulatingheatingvalve 002=2
Electrical resistance on/off 002=3
Heating valve on/off 002=4
Cooling battery
No cooling battery 003=0
Modulating cooling valve 003=1
Cooling valve on/off 003=2
Mixed-useheating/coolingbattery
No mixed-use battery -
Modulating mixed-use valve 002=2 and 003=1
Mixed-use valve on/off 002=4 and 003=2
Post-heatingbattery
Nopost-heatingbattery 004=0
Post-modulating resistance 004=1
Modulatingpost-heatingvalve 004=2
Post resistance on/off 004=3
Post-heatingvalveon/off 004=4
Humidier
Nohumidier 006=0
Modulating humidifier 006=1
Humidifier on/off 006=2
Dehumidier
No dehumidifier 007=0 and 003=0
Dehumidification through modu-
lating cooling battery 007=0, 003=1,139:1 :or 2:
Modulating dehumidifier 007=1
Dehumidifier on/off 007=2
Settheoutputstoactivatetheselectedbatteriesasindicatedinthetablebelow:
Element Settings
Modulating electrical resistance
030=6 (AO1) or
031=6 (AO2) or
032=6 (AO3)
Modulatingheatingvalve
030=3 (AO1) or
031=3 (AO2) or
032=3 (AO3)
Electrical resistance on/off
025=7 (DO1) or
026=7 (DO2) or
027=7 (DO3) or
028=7 (DO4) or
029=7 (DO5)
Heating valve on/off
025=4 (DO1) or
026=4 (DO2) or
027=4 (DO3) or
028=4 (DO4) or
029=4 (DO5)