MAXA HI-T Use and care manual

Hi-T LCD touch-screen centralized controller for hydronic
terminal coupled with N-i-HWAK/WP V2/V2+ minichillers and
i-HP/i-HP LT chillers
AIR CONDITIONING
A86
USER’S AND INSTALLER’S MANUAL
Serie/Series/Serie/Série Emissione/Edition/Au-
sgabeIssue
Hi-T LCD Touch-Screen
Centralized Controller 04 – 2014
Catalogo/Catalogue/Katalog/Brochure Sostituisce/Superseedes
Ersetzt/Remplace
MUI01137E0120-00
–

 Hi‐TCentralizedcontroller
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0003‐2014A.M.G.M./
RevDateIssuedApprovedUpdatesdescription
Catalogo/Catalogue/Katalog/Catalogue
MUI01137E0120‐00
Serie/Series/Serie/Serie/Série
CONTROLLOREMOTOPERCHILLERETERMINALIIDRONICI
Theelectricalandelectronicproductsandanywasteshouldnotbedisposedofwithnormalhouseholdwaste,butdisposedofaccordingtolawinaccordance
withtheWEEEEUdirectives2002/96/ECand2003/108/ECasamended,andinquireattheplaceofresidenceorattheretailerinthecasewheretheproduct
isreplacedwithasimilarone.
NOTE:Thestatementsanddescribedinthismanualmaynotcoincidefullywiththedeviceinquestion(“Hi‐T:CentralizedControlLCDtouchscreenfor
hydronicterminalcoupledtoN‐i‐HWAK/WPV2/V2+minichillersandi‐HP/i‐HP‐LTchillers”).TheCompanyreservestherighttomakechangesandupldates
thanindicatedinnthismanual.

Hi‐TCentralizedcontroller
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INDEX
1HI‐T:GENERALNOTES............................................................................................................................................. 4
1.1PERMITTEDUSE............................................................................................................................................................................4
1.2USENOTPERMITTED....................................................................................................................................................................4
1.3TECHNICALDATA..........................................................................................................................................................................4
1.4ELECTROMECHANICSCHARACTERISTICS .....................................................................................................................................4
2I/ORESOURCES ...................................................................................................................................................... 5
2.1TOUCHSCREENPCB .....................................................................................................................................................................5
2.1.1LAYOUT ....................................................................................................................................................................................5
2.1.2TOUCH‐SCREENUSE .................................................................................................................................................................5
2.1.3DISPLAY ....................................................................................................................................................................................5
2.1.4POWERSUPPLY ........................................................................................................................................................................5
2.1.5ANALOGUEINPUT ....................................................................................................................................................................5
2.1.6SERIALANDCONNECTIVITY......................................................................................................................................................5
2.2CLOCK...........................................................................................................................................................................................6
2.3CONNECTIONS..............................................................................................................................................................................6
2.1INSTALLING ..................................................................................................................................................................................6
3USERINTERFACE..................................................................................................................................................... 7
3.1ICONSDISPLAY .............................................................................................................................................................................7
3.2SCREENSANDICONS ....................................................................................................................................................................7
3.3STARTPAGE..................................................................................................................................................................................8
3.4HOMEPAGE .................................................................................................................................................................................8
3.4.1CHILLERSCREEN/HEATPUMP ..................................................................................................................................................10
3.4.2FANCOILPAGE..........................................................................................................................................................................13
3.4.3Hi‐TAREA .................................................................................................................................................................................15
3.4.4ETHERNETCONNECTIONCONFIGURATION .............................................................................................................................15
3.5SECONDMAINPAGE ....................................................................................................................................................................16
3.6HOMESYSTEM .............................................................................................................................................................................17
3.6.1STATUSSETUPPAGE ................................................................................................................................................................17
3.6.2SET‐POINTSETUPPAGE............................................................................................................................................................18
3.6.3PROGRAMSPAGE(CHRONOTHERMOSTAT).............................................................................................................................18
3.6.4SPECIALFUNCTIONSPAGE .......................................................................................................................................................19
3.6.5CONFIGURATIONPAGE ............................................................................................................................................................19
3.6.6HELPPAGE................................................................................................................................................................................22
4STATUSMACHINESANDFUNCTIONS...................................................................................................................... 23
4.1NEWTORKMANAGEMENT ...........................................................................................................................................................23
4.2REMOTECONTROLCONNECTEDWITHMORECHILLERINTHENETWORK ...................................................................................23
4.3CHILLER/HEATPUMPSMANAGMENT ..........................................................................................................................................24
4.3.1ENABLINGTHEINDIVIDUALCHILLERFORTHEPRODUCTIONOFSANITARYWATER ...............................................................24
4.4FANCOILMANAGE........................................................................................................................................................................24
4.5PROCEDUREBEFORESETTINGTHEHI‐TREMOTECONTROL ........................................................................................................24
4.5.1ADRESSING...............................................................................................................................................................................24
4.5.2SCANNETWORK .......................................................................................................................................................................25
4.5.3AREASFANCOILASSIGNMENTANDCUSTOMIZINGTHEAREA’SNAME .................................................................................25
4.6ASSOCIATESUNITOPERATION .....................................................................................................................................................25
4.6.1ON/OFF ....................................................................................................................................................................................25
4.6.2ON/OFFSANITARYMODE ........................................................................................................................................................26
4.6.3SET‐POINTSETUP .....................................................................................................................................................................28
4.6.4FANSETUP................................................................................................................................................................................29
4.6.5PROGRAMSSETUP(CHRONOTHERMOSTAT) ...........................................................................................................................29
4.7KEYBOARDSETTINGSPROCEDURE...............................................................................................................................................32
4.7.1SETTINGOFTHELANGUAGEANDOFTHEDATE/TIME ............................................................................................................32
4.8FAULTDIAGNOSTIC ......................................................................................................................................................................33
4.8.1ACTIVEALARMS .......................................................................................................................................................................33
4.8.2ALARMHISTORY.......................................................................................................................................................................33
4.9DOUBLESET‐POINTANDDEHUMIDIFICATIONFUNCTIONS .........................................................................................................33

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4.9.1MEASUREMENTOFTEMPERATUREANDHUMIDITY ...............................................................................................................34
4.9.2DEWPOINTANDDEHUMIDUFUCATIONCONTROL .................................................................................................................34
4.10CLIMATICCOMPENSATION ..........................................................................................................................................................35
4.11OTHERFUNCTIONS.......................................................................................................................................................................35
4.12SPECIALFUNCTIONS.....................................................................................................................................................................35
4.12.1SCREEDFUNCTION ...............................................................................................................................................................36
4.13PASSWORDANDPROTECTIONS ...................................................................................................................................................36
5REMOTEACCESS..................................................................................................................................................... 37
5.1SECURITY......................................................................................................................................................................................37
5.2LOCALWEBSERVER......................................................................................................................................................................37
6FIRMWAREUPDATE ............................................................................................................................................... 41
7HNSSYSTEMDESCRIPTION ..................................................................................................................................... 42
8THEHNSBOX .......................................................................................................................................................... 44
8.1FUNCTIONS ..................................................................................................................................................................................44
8.2HNSBOXDESCRITPION...................................................................................................................................................................44
8.3CONNECTINGTHEHI‐TKEYBOARD,THECHILLERANDTHEHYDRONICUNITS .............................................................................45
DIPSWITCHESSETTING ............................................................................................................................................................................46
8.4WATERPROBE..............................................................................................................................................................................46
8.5AIRSENSOR ..................................................................................................................................................................................47
8.6WIRINGS.......................................................................................................................................................................................48
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Hi‐TCentralizedcontroller
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1Hi‐T:GENERALNOTES
1.1 PERMITTEDUSE
TheHi‐Tisatouchscreenremotecontrolforcentralizedmanagementofanetworkofchiller/heatpumpsystemandoftheHNS
system.Itcanalsobeusedforpartialfunctions(i.e.asaremotecontrolpanelforasinglechiller/heatpumporthermostatforsome
fancoilsmanagement).
Itintegrateshumidityandtemperaturesensorsforthethermohygrometricanalysisoftheenvironmentandforthemanagementof
thedoublesetpointforradiantfloorheatingsystemsthatuseadehumidificationsystem.
Theintuitiveinterfacesimplifierstheuseofthecontrol;allthefunctionsareeasilysetthroughtheuseofimmediateunderstanding
synoptic.
1.2 USENOTPERMITTED
AnyuseotherthanthatpermittedisPROHIBITED.
1.3 TECHNICALDATA
NominalMin.Max.
Powersupplyvoltage12Vac10Vac14Vac
Powersupplyfrequency50‐60HzTip‐5%Tip+5%
Operatingambienttemperature25°C0°C50°C
Operatinghumidity(non‐condensing)30%10%90%
Ambientstoragetemperature25°C‐20°C70°C
Ambientstoragehumidity(non‐condensing)30%10%90%
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1.4 ELECTROMECHANICSCHARACTERISTICS
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TerminalsandconnectorsScrewterminals
Analogueinputs1NTCprobeonboard
1humiditysensoronboard
Serial1USBHost(formassstorageplug)
1isolatedRS485networkforchiller/heatpumpandfan
coil
1TTLserialportforfutureuse(optionalplug‐ins)
1Ethernetport
TransformerDevicenotincluded
WatchRTCwatchwithbackupcondenser
DisplayLCDTFT4.3”480x272pixels
KeysResistivetouchscreenmountedontheLCD
Dimensions128x81.2mmdepth35mm(box)
CaseWhiteplastic
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2I/ORESOURCES
2.1 TOUCHSCREENPCB
2.1.1 LAYOUT
Figure1.Layout.
2.1.2 TOUCH‐SCREENUSE
Theinterfacehasaresistivetouch‐screenLCDwithsensitiveareasappliedtothecontextualcontentoftheactivescreen.
Itallowsyoutoselectitemsorperformfunctionswithease.
Donotexerttoomuchpressureonthetouchscreenwithyourfingersanddonotuseasharpobjectonthetouchscreen.Doingso
maydamagethetouchscreenorcauseittomalfunction.
Itisadvisabletoexertweakerpressureandnottoofastonthescreenandtobecomefamiliarwiththeuseofthetouch‐screen
itself,wellcalibratingthetouchofyourfingertiponthesensitiveareasofthescreens.
Donotputthetouch‐screenincontactwithotherelectricaldevices.Electrostaticdischargemaycauseamalfunction.
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2.1.3 DISPLAY
ThedisplayisaTFTLCD16/9formatwithadiagonal4.3".Theresolutionis480x272pixels.TheLCDishandledwith16bitcolour
depth(65535colours).
2.1.4 POWERSUPPLY
DescriptionCharacteristicsID
POWERSUPPLY12VAC12Vac(min.10Vac–max.14Vac)
2.1.5 ANALOGUEINPUT
DescriptionCharacteristicsID
RoomtemperatureNTCprobe,conversionrange‐20°C÷+100°C
Relativehumidity0%‐90%attemperaturebetween‐20°Cand60°C 
2.1.6 SERIALANDCONNECTIVITY
DescriptionCharacteristicsID
USBUSBHost(formassstorageplug)/connectortypeAUSB
RS485isolateIsolatedRS485toModbusSerialchiller/heatpumpandfancoil
TTLModbusserialTTLforfutureuse
ETHEthernetport10/100BASETforminimalweb‐server

Hi‐TCentralizedcontroller
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2.2 CLOCK
It’spresentaclockwithbackupbattery.
2.3 CONNECTIONS
Openthecontrolapplyingaslightpressureinthelowerandupperpartsofthecontrol,inordertoseparatetherearcoverfromthe
frontone.Passthecablesthroughtheholeintherearpanelandmakeconnectionsaccordingtothefollowingguidelines.
Terminals1and2:12Vacpowerconnectsupply(terminalonchiller12V‐e12V+).
Terminals3‐4‐5:connecttheRS‐485bus:terminal3toterminalGNDR,terminal4toR‐andterminal5toR+.

R+
R-
12V+ 12V-
GND
12345678
12 11 10 9
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Figure2.Connections.
2.1 INSTALLING
TheHi‐Tcontrolisusedforfixingtothewallaccordingtothestandard503.
Intherearpartofthecontrolsomepre‐drilledholesarepresenttobedetachedpursuingapressurewithascrewdriver,insucha
wayastoobtaintheholesusefultothefixing.Ofthe6holes,useonlytheouter2holesofthehorizontalseries(seeFigure3).
Beforeyoudothis,openthecontrolitself,applyingaslightpressureinthelowerandupperpartsofthecontrol,inorderto
separatetherearcoverfromthefrontone.
Usetherearpanelandapplytheholesinthetwoslotsshowninthefigurebelow.
Donotdirectlyusethepanelasatemplatetodrilltheholesonthewall,theelectronicsmaybedamagedduringthisoperation.
Figure3.Holesforwallmounting.
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 Hi‐TCentralizedcontroller
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3USERINTERFACE
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Thetouch‐screencanbeusedinthefollowingways:
•Interfacepanel(unitinterface)forasingleheatpump
•Networkcontrollerformultiheatpumpinstallation
•Networkcontrollerformultiheatpumpandfancoilinstallation
•Networkcontrollerformultifancoilinstallation
Tomanagethesystemmodularity,theinterfaceforeseesahomepagewhichsummarizesthewholeplant,showingdynamicallythe
enabledresourcesandhidingtheonesnotavailableinthecurrentconfiguration.Theinterfacealsoprovidesasecondsummary
pageincludingallthevaluesoftemperatureandhumiditydetectedinthesystem.
Throughthemenuitispossibletoaccessto:
•Plantconfiguration
•Singleunitsstatuses
•Zones,machinesandplantsettings
Asalternativeitispossibletodirectlyaccessfromthehomepagetodetailedinformation,pressingonthedisplaywherearelocated
thesummarizedinformation.E.g.,pressingwherearelocatedthemaininformationoftheheatpump,youcanenterinthemenuof
theheatpumpstatus.

3.1 ICONSDISPLAY
Alliconsonthedifferentscreenscanbeshowninfullcoloursorde‐saturatedasinthefollowingexample:
 

Thecoloursaturationindicatesthaticonisusable;whenpressedtherelatedfunctionisperformed.
Thetransparency(de‐saturated)indicatesthaticonisnotusableandanytouchonithasnoresultingaction.

Forwhatconcernsthesideslidingbarwhichappearsontheleftsideofthescreenrelatedtothesingleunitsconnectedintoa
network(seeParagraphs3.4.1.3e3.4.2.1),ifaniconappearsfullycolouredtherelatedfunctionisenabledand,inthatspecific
momentisalsoactive(i.e.ifthe“wateranti‐freeze”iconoftheheatpumpispresentandcoloured,asshownbelow,theplate
exchangerelectricalheatingelementsareswitchedon).



Instead,iftheiconappearsbutistransparent(de‐saturated),therelatedfunctionisenabledbutnotthatmomentactivated(i.e.if
the“wateranti‐freeze”iconoftheheatpumpappearstransparent,asshownbelow,theplateexchangerelectricalheating
elementsarereadytoworkbutcurrentlyswitchedoff).



3.2 SCREENSANDICONS
Theremightbesomedifferencesbetweenscreensandiconsastheyarecurrentlyshown.TheCompanyreservesitselftomodify
andupdatethemwithoutpriornoticeandinrelationtowhatshowninthepresentmanual.

Hi‐TCentralizedcontroller
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3.3 STARTPAGE

Figure4.Startpage.

OnHi‐Tstart,whilesystemloading,asplashscreenappearswithalogo.
3.4 HOMEPAGE
Thehomepagehasthefollowingappearance:

Figure5.Homepage–indicationmeanings.

Fromthehomepageitispossibletoaccesstothedifferentdevice’sscreens,simplytouchingthedisplayedresource.
Thesensibleareas(indicatedintheimagebyredboxes)insidethispageare:
1. Heatpump/chiller(showingtheworkingmode)
2. Statussystemandmodesystemdisplay
3. Fancoil(withastatusmessageofdehumidificationactivemode)
4. Displayofanyactivealarmsinthesystem
5. Informationandlocationofthecompany
6. Nameofthekeyboard(accesstoinformationonthefirmwareversion)
7. ConfiguringtheEthernetnetwork
8. Log‐out(intermittentsymbolifit’sactive)
9. Arrownavigation,nextpage.
2
3
1
11
12
13
5 6
4
7
8
9
10

 Hi‐TCentralizedcontroller
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Graphically,italsocontainsinformationonthepresenceorabsenceonthefollowingutilities:
10. Tank
11. Radiantpanels
12. Sanitary
13. Solar.
Onthemainscreen,infact,itappearsonlyutilitiespresentandproperlyinstalledinthenetworkortheactivewarningsatthetime
ofviewing.
If,forexample,thenetworkconsistsonlyofoneormorechiller/heatpumps,withoutproductionofsanitarywaterandwithout
storage,thescreenshowsgraphicallythepresenceofthechiller,butinsidethehousedonotappearotherobject;inthiscasethe
appearanceisthefollowing:


Figure6.Homescreen–onlychillerisnetworked.

Figure7.Chiller/HeatPump.

Referringtotheabovefigureisitpossibletoobtainthefollowinginformation:
•presenceofchillersconnectedinthenetwork(thechilleriscorrectlyacceptedwhentouchingitsfigureyoucanaccessto
thepagesdedicatedtoitself);

•operatingmodeofthechiller(winter,summer,sanitary,OFFifdoesnotappeartheprevious
threesymbols);

•operatingstatusofthechiller(compressorrunning):theoperationofthechillershowsgraphicallybytherotationofthe
fans).





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Inaddition,directlyonthehomepage,youcangetthefollowinginformationaboutthefancoils:
•Presenceoffancoilsconnectedinanetwork,ifthesymbolappears(Figure8.Fancoilnetwork.);
•Dehumidificationfancoiloperation,ifthesymbolofthedropsappears(Figure9.Fancoildehumidification.).
Figure8.Fancoilnetwork.


Figure9.Fancoildehumidification.
3.4.1 CHILLERSCREEN/HEATPUMP
Fromthemainpage,bytouchingthesymbolofthechiller(sensitiveareanumber1,Figure5.Homepage–indicationmeanings.),
youcanaccesstothechilleronnetworkscreen.
Fromhereyoucanaccesstotheinformationrelatedtotheoperationsofthechiller;thenyoucanuniquelyidentifyeachchiller
present,assigningeachaname.

Figure10.Chillerpage–informationandsensitiveareas.

Theinformationinthechiller’spageare:
1. Temperaturereadinthechiller(abouttoaspecificchiller):
a. Airtemperature(°C)
b. Inletwatertemperature(°C)
c. Outletwatertemperature(°C)
2. Statusandoperationmodeaboutaspecificchiller
3. Active/activablefunctions(inthescrollbarontheleft)

Sensitiveareas(indicatedbyredboxesinthefigure)inthispageare:
1. Chillername(eachtimeyoupressonit,yougotothenextchillerunitinthenetwork;otherwise,withprolongedpressure,
youcanrenamethechiller)
2. Chiller/heatpump(withworkingsignallingfunctiongivenbytherotationofthefans);fromhereyouaccesstoanadditional
pageofinformationaboutthatspecificchiller.
3. Activealarmsintheunitdisplayed
7. Iconsofthenavigationsidebar
8. Iconsofthenavigationsidebar
5
3
7
4
1
2
6
8
9

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9.Iconsofthenavigationsidebar

3.4.1.1 ASSIGNMENTOFNAMESTOTHECHILLERS
Fortheassignmentofthenametoachiller,youmustnavigatebetweenthepagesofthechillerconnectedtothenetworkuntilyou
gettothepageofthechillerwhichyouwanttochangethename:forapplythis,youhavetomakesinglepressintothepressure
sensitivearea4.Onceyoufindthechiller,pressandholdforafewsecondsinthesamearea4.Thencomposewiththekeyboard
thatappearsthedesiredname.
Figure11.Insertchillername.

Thenameofthechillercanhaveamaximumof13characters.

3.4.1.2 CHILLERAREA

Thearea5showninFigure10givesindicationsabouttheoperation(compressorrunning)ofthechiller,graphicallydisplayingthe
fanrotation.

Pushingdownonthearea5youaccesstoafurtherscreenthatshowsalistofreaddatainrealtimerelatedtotheinvolvedchiller:
•Inletwatertemperature(°C)
•Outletwatertemperature(°C)
•Sanitaryprobetemperature(ifit’spresentandconfigured,°C).

Accessingthesamepagewithserviceormanufactureraccessright(toenabletheaccessright,pressonthe“configurations”icon
presentinthesensitivearea8ofFigure10andsettheservice/manufacturerpassword),thedatadisplayedinreal‐timeare:
•Inletwatertemperature(°C)
•Outletwatertemperature(°C)
•Sanitaryprobetemperature(ifit’spresentandconfigured)
•Highpressure(bar)
•Lowpressure(bar)
•Compressorspeed(Hz)
•Openingexpansionvalve(step)
•Fanspeed(%)
•Pumpspeed(%)
•Overheating(°C)
•Compressoroperatinghours(Hr.)
•Pumpoperatinghours(Hr.)

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
3.4.1.3 TOOLBARCHILLERAREA
Ontheleftscrollsidebarthereareiconsthatsymbolizetheactive/activablefunctionsinthechillertakenintoaccount.Inparticular:
Colourfulicon=functionenabled,
Fadedicon=functionconfiguredonthemachinebutnotcurrentlyactive.

Belowthereisatablewithiconsthatmayappearinthescrollsidebar.
Thepresenceorabsenceoftheiconinthesidebarwillbedeterminedbytheenableordisableofthefunctiononthechiller.

ORDEROFAPPARANCEICONFUNCTION
1


SANITARYHOTWATER
2


SANITARYINTEGRATIONRESISTANCE
3


PLANTINTEGRATIONRESISTANCE
4


BOILERENABLING
5


DOUBLESET‐POINT
6


DEHUMIDIFYING
7


SLABFEATURE
8


DEFROST
9


ANTIFREEZEWATER
10


ANTIFREEZETRAYRESISTANCE
Table1.Orderofappearanceoftheiconsinthetoolbaronthechiller.

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
3.4.1.4 NAVIGATIONAREA

Inthetoolbarthatappearsattherightsideofthechillers’page,threeiconsareshownforthenavigationbetweenthepages:

Thefirsticononthetopallowsyoutoreturntothepreviousscreen,thesecondallowsyoutoenablemaintainer/manufacturer
accessrightsthroughapasswordtofurtherinformationinreal‐time,thelastreturnstotheHomescreen.
Thelowerpartshowsdateandtime.
Ifaniconappearstransparent,itisnotaccessible.
3.4.2 FANCOILPAGE
Fromthemainpage,bytouchingthesymbolofthefancoil(hotspotnumber3,Figure5),youenterthescreenofthefancoilson
thenetwork.
Fromhereyoucanaccesstheinformationrelatedtotheoperationoftheindividualfancoil,identifiedbyareaofbelongingand
identificationnumberoftheindividualfancoil.

Figure12.Informationfancoilspageandsensitiveareas.

Thesensitiveareas(indicatedbyredboxesinthefigure)inthisscreenare:
1. Activealarmsofthedisplayedunit
2. Nameofthefancoils(itshowsthenameofthezonetowhichthefancoilbelongsandtheidentificationnumberofthefan
coilunit;foreachpressureontheareaname,youmovetonextthefancoilunitinthenetwork)
3.Iconsofthenavigationsidebar
4.Iconsofthenavigationsidebar
5.Iconsofthenavigationsidebar

Theinformationonthefancoilspageis:
6. Temperaturesreadinthefancoilzones(averagetemperatureofthefancoilsinthearea)
a. Airtemperature(°C)
b. Inletwatertemperature(°C)
6
8
7
1
2
3
4
5

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7. Statusandmodeofoperationrelatedtoaspecificfancoil(withfanspeed)
8. Active/activablefunctions(inthescrollbarontheleft)

Pressingtheconfigurationsymbol(SensitiveArea4)leadstothesettingofventilation.Theventilationischangedforzones;hence
changingtheventilationofafancoilofagivenarea,thechangesareappliedtotheentirearea.Thepageforsettingtheventilation
lookslikethis:
Figure13.Ventilationspeedconfiguration.

Thespeedcanbesetare:
•Minimumspeed
•Averagespeed
•Maximumspeed
•Automaticregulation(auto‐mode)

Withtheupanddownarrowsyouchoosethespeed,withthegreenbuttonyouconfirmthevalueset.


3.4.2.1 TOOLBAROPERATIONFANCOILAREA
Intheleftscrollsidebarthereareiconsthatsymbolizetheactive/activablefunctionsinthefancoilzoneconsidered.Inparticular:

Colourfulicon=functionenabled,
Fadedicon=functionunitconfiguredbutnotcurrentlyactive.
Belowthereisatablewithiconsthatmayappearinthescrollsidebar.
Thepresenceorabsenceoftheiconinthesidebarwillbedeterminedbytheenableordisableofthefunctionwhichyoureferon
boardthefancoilunit.

ORDEROFAPPARANCEICONFUNCTION
1


WINDOWSWITCH
2

DOUBLESET‐POINT
3

HUMIDITYCONTROL
Table2.Orderofappearanceoftheiconsinthetoolbaronthefancoil.

 Hi‐TCentralizedcontroller
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3.4.3 Hi‐TAREA


Pressinginthesensitivearea6ofFigure5,youhaveaccesstoascreenshowingtheversionandthedateofreleaseofthefirmware
installed.

3.4.4 ETHERNETCONNECTIONCONFIGURATION


Pressinginthesensitivearea7ofFigure5,itappearsthepage:

Figure14.Ethernetnetworkconfigurationpage.

OnthispagetherearetheaddressesfortheconfigurationofanEthernetconnection.
Logginginwithmaintainer/manufacturerpermission,youcanchangethedefaultaddresses.
It’simplementedalocalwebservertoaccesstotheHi‐TfromlocalareanetworkwithaHTML4.01compatiblebrowser(see
Paragraph5.2).

Hi‐TCentralizedcontroller
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
3.5 SECONDMAINPAGE
Fromthehomepage,touchingthearrowicontonavigatetothenextscreen,yougotoasecondscreenshowingallofthe
detectionscarriedoutbythetemperaturesensorsandhumiditysensorsinthesystem.
Figure 15. Second Main page.

Referringtothefigureabove:

•Field1indicatesthezonetowhichyouarereferring;applyingpressureonit,youswitchtothenextzone.
•Field2indicatesthefancoilwhichisreferencedwithinthezoneselectedfromthefield1;pressingonittheindexofthe
selectedzoneprogressesinacyclicmanner,givingawayallthefancoilunitsinthearea.Foreachfancoilisshownthe
detectedairtemperature.Theseindicationsappearonlyiftherearefancoilsconfiguredinthesystem.
•Field3indicatesthechillerwhichitrefers;bypressingonit,youprogresstothenextchillerinthenetwork.Foreachchiller
shown,youseethereadingsonthetemperatureofthewaterinletandoutletofthechillerandontheairtemperature
measuredbytheprobesonboard.
•Field4showstheambienttemperatureandtherelativehumiditymeasuredbythesensorsintegratedintheHi‐Tpanel.
•Field5indicatesthepresenceofthesolarsystem;thentheindicationonthetemperatureofthesolarpanelsisshown.
Theseindicationsappearonlyifinthesystemisconfiguredasolarpanel.
•Field6showstheenablingoftheproductionofdomestichotwaterrelatedtothechillerselectedfromfield3.Italso
indicatesthetemperatureofthedomestichotwaterproduction.
•Field7indicatesthepresenceofastoragetankconnectedtothechillerselectedfromfield3.Italsoindicatesthe
temperatureofthedomestichotwaterproduction.
•Field8indicatesthepresenceofradiantfloor;thisfieldisconnectedtotheenablingofthefunctionofdoubleset‐point.
Inthecaseofprobesinerrorornotproperlyconfiguredandconnected,itappearstheindicationoferror.
NOTE:Thepresenceofaccumulationandthesanitarymodeareherereferredtothefactthatinthenetworkispresentaheatpump
inwhichthesanitarymodeisenabled.
5
3 7
4
1
2
68

 Hi‐TCentralizedcontroller
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
3.6 HOMESYSTEM
Fromthesecondpage,touchingthearrowicontonavigatetothenextscreen,yougotoathirdscreenforgeneralsettings,the
"systemmainpage",showingthefollowingfunctionalicons:

Figure16.Systemmainpage.

Above,fromthelefttoright:
1) STATUSSETUP;
2) SET‐POINTSETUP;
3) PROGRAMSANDCHRONO‐THERMOSTAT.
Inthebottom,fromthelefttoright:
4) SPECIALFUNCTIONS;
5) CONFIGURATION;
6) HELPMENU.

3.6.1 STATUSSETUPPAGE

Pressingtheiconabove,youaccesstothepage:“Statussetup”.

Figure17.“Statussetup”page.

Pushingon“System”youcansetthestatusoftheentiresystem,otherwiseyoucanactonindividualunit.

Hi‐TCentralizedcontroller
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3.6.2 SET‐POINTSETUPPAGE

Pushingontheiconabove,youaccesstothepage:“Set‐pointsetup”.

Figure18.“Set‐pointsetup”page.

Fromthisscreenyoucansetthechiller’setandfancoilzonesconfigured.Ifenabled,youcanalsosetthesanitaryhotwaterset(see
Paragraph4.6.2),thesecondset‐point(seeParagraph4.9)andtheoffsetfortheclimaticcompensation(seeParagraph4.10).

3.6.3 PROGRAMSPAGE(CHRONOTHERMOSTAT)


Pushingontheiconabovetoaccessthepage“Programs”.

Figure19.“Programs”page.

Fromthispageyoucansettheweeklyprogramofchillersandfancoilzonesseparately.Youcanalsoprogramthelegionella’scycle
andtheproductionofhotwater,ifenabled(seeParagraph4.6.5).


 Hi‐TCentralizedcontroller
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3.6.4 SPECIALFUNCTIONSPAGE


Pressingtheiconabovetoaccessthepage"SpecialFunctions"(seeParagraph4.12).


3.6.5 CONFIGURATIONPAGE


Pushingontheiconabove,youenterintothepage"Configuration".

Figure20.“Configuration”page.

Fromtheconfigurationscreen,youcanaccesstotheUser‐Setupmenu,totheservicemenuandtothemanufacturermenu.
Pushingoneachoftheseitems,itappearsanumerickeypadforenteringapassword.

Figure21.Passwordentry.

Theuserpasswordissetbydefaultto"0"(modifiable).



