KMC Controls FlexStat User manual

FlexStat 1 Operation Guide, Rev. M
Operation Guide
FlexStat™
BACnet Programmable Thermostats
Contents
Overview ................................................................3
Applications and Installation ...................................3
Operation (Basic) ....................................................4
Navigation ..........................................................4
Room Temp. Setpoint Adjustment .......................4
H/C, Fan, Occupancy, and Override ................... 4
Main Menu and Settings ...................................... 4
Display Options ..................................................5
Configuration (Setup) ..............................................6
Main Menu Overview .........................................6
About the FlexStat ............................................... 6
Advanced Menu ..................................................7
(Advanced) Application and Additional Setup ..7
Auxiliary Heat (Heat Pump Only) Setup ...... 7
Damper Setup .............................................7
Humidity Setup ...........................................8
Motion Sensor Setup ...................................8
Optimum Start Setup ..................................9
Sensor Setup ................................................9
Setback (OAT) Lockout Setup ....................10
Staging Setup .............................................10
Valve Setup ...............................................10
(Advanced) CB (Control Basic) Programs ....... 10
(Advanced) CO2 Sensor (and DCV) ................11
CO2 Sensor Setup and Information ...........11
CO2 Sensor Calibration .............................11
DCV (Demand Control Ventilation) Setup .12
(Advanced) Communications (BACnet) ..........16
(Advanced) Date/Time ...................................16
(Advanced) BACnet Device Properties ...........17
(Advanced) Inputs ..........................................17
(Advanced) Temp. Setpoint Limits ..................18
(Advanced) PID Loop Configuration .............. 18
(Advanced) Restart/Restore ...........................18
(Advanced) Security Levels and Passwords ..... 19
(Advanced) Test ..............................................20
(Advanced) Trend Logs ...................................20
(Advanced) User Interface (UI) ......................21
Display Blanking .......................................21
Inactivity ...................................................21
Rotation Values ..........................................21
Show Temperature Tenths (Decimals) ........21
Mode .........................................................21
Alarms ............................................................... 23
Date/Time .........................................................23
DCV (Demand Control Ventilation) ..................24
Schedules .......................................................... 24
Specifications, design, and operation are subject to change without notice.

FlexStat 2 Operation Guide, Rev. M
Setpoints ...........................................................25
System Modes ...................................................25
Trend Viewer ..................................................... 26
Resetting the FlexStat ............................................26
Types of Reset ....................................................26
Warm and Cold Starts .......................................26
Restore Factory ................................................. 27
Network Connection .............................................28
MS/TP Network Communication ......................28
IP/Ethernet Network Communication ...............28
PC Data Port Connection ..................................28
Maintenance .........................................................29
Firmware Upgrade ................................................29
Programming (Custom) .........................................29
Accessories ...........................................................29
Troubleshooting .................................................... 30
Alarm Issues ...................................................... 30
Alarm, (False) Fan Fail .................................... 30
Alarm, (False) Low Limit (Freeze Stat) ............30
Alarm, (False) Space Temp. or Humidity ........30
Back-Up Issues .................................................. 30
Communication Issues ......................................31
Ethernet/IP Network Communication Issues ..31
KMD-5576 (Data Port) Communication Issues 31
MS/TP Network Communication Issues .........31
Cover, Display, and Reset Issues ........................ 31
Cover Binds on Backplate ..............................31
Display Is Blank (or Erratic) ...........................32
Display Freezes (Buttons Have No Effect) ......32
Display Keeps Resetting .................................32
“SYSTEM ERROR” Is Displayed ...................... 32
Custom Programming and Web Issues ............... 33
Control Basic Programs Do Not Work ............33
Custom Web Graphics Do Not Work .............33
Input, Sensor, and Value Issues .......................... 33
CO2 Level Value Is Frozen or Is 0 ................... 33
CO2 and DCV Sequences Are Not Working ....33
CO2 Level Is “Too High” .................................34
DCV Menu Is Not Visible ...............................34
Input Values Are Outside the Expected Range 34
Motion/Occupancy Sensor Does Not Work ... 34
Temperature Reading Is Incorrect ..................34
Temperature Setpoint Is Not Maintained .......35
Time and/or Date Are Not Correct ................ 35
Output, Fan, and Relay Issues ........................... 36
Analog Output Does Not Work ......................36
Fan Does Not Run .......................................... 36
Relay (External) Does Not Work ....................36
Relay (Internal) Does Not Work .....................37
Upgrading Firmware Issues ...............................37
Firmware Upgrade Failures ............................37
FlexStat Malfunctions After Upgrade ............. 38
Wiring Issues ..................................................... 39
Installation Wiring Considerations .................39
Troubleshooting Wiring Problems ..................39
Support .................................................................40
Important Notices .................................................40
Reference .............................................................. 41
Acronyms and Abbreviations .............................41
Definitions of Terms ..........................................42
Index ..................................................................... 43
(Click for details.)
NOTE: Menusshowninthisdocumentreect
rmwareversionR2.0.0.21orlater.Actual
context-sensitivescreensaredependent
onrmwareversion,FlexStatmodel,and
optionsselected.

FlexStat 3 Operation Guide, Rev. M
Overview Applications and Installation
1. WiretheFlexStat’sbackplatetothedesired
equipmentandsettheFlexStat’send-of-lineand
inputpull-upresistorswitches.
2. Selecttherelevantapplicationandoptionsfrom
the(Advanced)ApplicationsubmenuoftheAd-
vancedMenuandotherappropriatemenus.
3. ConguretheFlexStatfortheBACnetnetwork.
(SeeNetwork Connection on page 28.)
Forgeneralmountingandconnectiondetails,in-
cludingnetworkwiring,EOLtermination,power
connections,input/outputconnections,pull-up
resistorswitchseings,seetherelevantmodel’s
InstallationGuide.Forextendedinformationabout
wiringandsequencesforspecicapplications,see
theFlexStatApplicationGuide.
EIA-485 Data Port for
Quick Network Access
Terminal Blocks on
Removable Backplate
for Easy Wiring
Theaward-winningKMCFlexStatseriesofintelli-
genttemperature/humidity/occupancy-sensing,wall-
mounted,thermostat/controllersarenativeBACnet
AdvancedApplicationControllers(B-AAC)foruse
inaBACnetsystem.TheFlexStatsimpliesnet-
workedzonecontrolforcommonpackagedHVAC
equipment,suchaspackagedrooopunits,fancoil
units,heatpumps,andothersimilarapplications.In
addition,applicationssuchaspressuredependent
VAV,terminalreheat,andmedium-sizedcentral
stationairhandlingequipmentapplicationsmay
alsobeaddressedthroughtheon-boardlibrariesof
programsbuiltintothedevices.
Theon-boardlibraryofprogramspermitsrapid
congurationofawiderangeofHVACcontrolap-
plications.
TheFlexStatseriesalsoprovidesthecapabilityto
customizethestandardlibraryofsequencesusing
KMC’sBACstageprogrammingtool.Thisenablesa
localauthorizedKMCinstallingcontractortoadapt
thestandardlibrarytotheuniquesiteneedsandap-
plicationspecicrequirementsofaparticularproject.
CAUTION
To avoid damage from ground loops and other
communication issues in networked FlexStats,
correct phasing on network and power
connections on ALL the networked controllers
is critically important.
Quick (Temporary) Network Access
Through Computer Data Port
Communication with Other BACnet
Network Devices and Remote Monitoring
Up to 6 Ana-
log Inputs
for Other
Sensors or
Contacts
24 Volts AC
Power
Up to 9
(Total)
Analog
and Relay
Outputs
• AHU
• FCU
• HPU
• RTU
Temperature
Sensing
Optional
Humidity,
Motion,
and CO2
Sensing
Applications
NOTE: Forspecications,seetheBAC-
12xxxx/13xxxx/14xxxxSeriesFlexStatData
Sheet(914-035-01).Forspecicationson
theolderBAC-10000SeriesFlexStats(with
onlythreeexternalinputsandnoEthernet
orCO2options),seethedatasheet(913-035-
01)forthatseries.

FlexStat 4 Operation Guide, Rev. M
Operation (Basic)
Navigation
Navigatethemenusandchangeseingsbypress-
ingacombinationofvariousarrowbuonsandthe
Enterbuon.Pushthe:
• Enterbuontoselectand/orexitvalueediting.
• UporDownbuontomoveamongentries.
• RightorLebuontomoveamongvalueelds.
• LebuontoreturntotheHomescreen.
NOTE: Accesstovariousfunctionsmayrequirea
password.
H/C, Fan, Occupancy, and Override
Whenthefaniscommandedtorun,theanimated
“FAN”iconrotates(ifprogrammedto).Whenthe
fancommandstops,thefaniconismotionless.
The“OCC”iconshowsasunwheninOccupied
modeandaquartermoonwheninUnoccupied
mode.
HEATorCOOLwillshow(andbeanimatedwhen
thereisanactivecommandtomovetheroomtem-
peraturetowardthesetpointviamechanicalheat-
ing/coolingoraneconomizer),dependingonthe
currentmode.ThiscanalsobeturnedOFF.
TooverridethesemodesfromtheHome(tempera-
turedisplay)screen,presstheLearrowbuon.
PressUporDowntogettothedesiredlineandthen
Enter(twice)toeditthemodeseing.PressLeto
exittoHome.
Main Menu and Settings
FromtheHome(temperaturedisplay)screen,press
theRightarrowbuontoentertheMainMenu.You
mayneedtoenterapasswordtochangeanyseings.
Room Temp. Setpoint Adjustment
FromtheHome(temperaturedisplay)screen,press
theUporDownarrowbuononcetoviewtheexist-
ingsetpoint.
Totemporarilychangethesetpoint,presstheUp
orDownarrowbuonrepeatedlyuntilthedesired
seingisdisplayedandpressEnter.(IfEnterisnot
pressed,thedisplaywillreturntotheHomescreen
aerabouttensecondsandthenewsetpointvalue
willstillbesaved.)Thenewsetpointwillholduntil
thenextschedulechange.
Topermanentlychangethesetpointforoccupied
mode,gototheSetpointssectionundertheMain
Menu.(IntheSetpointsmenu,heating/coolingset-
points/setbacksanddeadbandcanbechangedwith,
ifrequired,thecorrectpasswordaccess.SeeSet-
points on page 25.)
WED 9/3 5:43 PM
COOL:
OCC:
FAN:
HUM: 31%RH
MAIN MENU
ABOUT
ADVANCED
ALARM
DATE/TIME
SCHEDULE
SETPOINTS
SYSTEM
ADVANCED
APPLICATION
CB PROGRAMS
COMMUNICATION
DATE/TIME
DEVICE
INPUTS
LIMITS
APPLICATION
DEGREES SCALE: °F
APP:
OPT: 1H/1C
ADDITIONAL SETUP
ROOF TOP
SYSTEM MODE
SYSTEM ENABLE: AUTO
OCCUPANCY OVERRIDE
OCC OVERRIDE: OFF
FAN MODES
UNOCC:
OCC: AUTO
AUTO
Override
Setpoint Adjustment
Home Screen
Override Screens
Configuration
Configuration Screens
Right
(Menu)
Left
(Override)
Down (Setpoint)
Up (Setpoint)

FlexStat 5 Operation Guide, Rev. M
WED 11/19 3:22 PM
COOL:
OCC:
FAN:
HUM: 37% RH
WED 11/19 3:20 PM
COOL:
OCC:
FAN:
HUM: 36% RH
WED 11/19 3:20 PM
COOL:
OCC:
FAN:
HUM: 36% RH
WED 11/19 3:20 PM
COOL:
OCC:
FAN:
HUM: 36% RH
WED 11/19 3:20 PM
COOL:
OCC:
FAN:
HUM: 36% RH
WED 11/19 3:20 PM
COOL:
OCC:
FAN:
OUTSIDE: 56° F
WED 11/19 3:20 PM
COOL:
FAN:
HUM: 36% RH
WED 11/19 3:22 PM
COOL:
OCC:
FAN:
HUM: 37% RH
Display Options
Totogglethedisplayedtemperaturescalebetween
FahrenheitandCelsius,presstheEnterbuonforat
leasttwosecondsuntilthedesiredscaleisdisplayed.
(PressingEnterforlesstimewillturnontheback-
lightifitiso.)Thedesiredscalewillpersistonthe
displayuntilthisprocessisrepeatedortheFlexStat
isrestarted.
Aerarestart,thetemperaturescalewillrevertto
whateverscaleissetintheApplicationmenu.To
changethescalesothatitpersistsaerrestarting,
changeitintheApplicationmenubyreseingthe
selectedapplicationtoNotCongured,changing
thetemperaturescale,andthenreconguringallthe
applicationoptions.See(Advanced) Application and
Additional Setup on page 7).
Fahrenheitdecimalvaluesarenotdisplayedbyde-
faultbutcanbeenabledintheUserInterfacemenu.
SeeShow Temperature Tenths (Decimals) on page 21.
WithR2.0.0.13andlaterrmware,Fahrenheittem-
peraturevaluesonthedisplaychangeinwhole
degreeincrementsbydefault,andCelsiusvalues
changein0.5°increments.ChangingthedefaultNo
toYeswillshowtenthsofadegreevaluesforboth
scales.
Thisdoesnotaectsetpointadjustments,whichare
alwaysinwholedegreeincrementsforFahrenheit
andhalfdegreeincrementsforCelsius.
WED 11/19 3:22 PM
COOL:
OCC:
FAN:
HUM: 37% RH
WhenDisplayBlankingisenabled,thedisplay
turnsoatthesametimethebacklightgoeso
(aerreset,initialpower-up,ortime-out).Whenany
buonispressed,thedisplaywillreappearuntilthe
time-outisreachedagain.See(Advanced) User Inter-
face (UI) on page 21.
Hospitalitymodehasasimplerdisplayandlimited
menus,anditistypicallyusedinhotelrooms.Users
typicallycanchangeonlythesetpoint,systemmode,
andfanspeed.PushingtheLeandRightbuons
displayscustomizablemenuselections.See(Ad-
vanced) User Interface (UI) on page 21.
Bydefault,rotationvaluesinthelowerrightofthe
screenshowrelativehumidityand/orCO2levelsin
modelswiththerelevantoptionalsensors.Ifmore
thanonevalueisshown,thevalueswillrotateap-
proximatelyeveryveseconds.
Thesevaluescanbehiddenifdesired,andadditional
optionsarealsoavailable.See(Advanced) User Inter-
face (UI) on page 21.
NOTE: Displayscanalsobelocked.LockedUI
modeappearslikeStandardmodeonthe
Homescreen,butallbuonfunctions
(exceptthebacklight)aredisabled.The
setpointandotheroperationfunctions
cannotbechangedbytheuser.See
(Advanced) User Interface (UI) on page 21.

FlexStat 6 Operation Guide, Rev. M
Configuration (Setup)
NOTE: Menusshowninthisdocumentreect
FIRMWAREVERSIONR2.0.0.21orlater.
Actualcontext-sensitivescreensare
dependentonrmwareversion,FlexStat
model,andoptionsselected.
NOTE: If appearatthetopofthescreen
(suchasintheMainMenu),scrollupor
downtoseetherestofthemenu’so-
screenchoices.
Main Menu Overview
MAIN MENU
ABOUT
ADVANCED
ALARM
DATE/TIME
SCHEDULE
SETPOINTS
SYSTEM 
Navigatethemenusandchangeseingsbypress-
ingacombinationofbuons.Pressthe:
• Enterbuontoselectand/orexitvalueediting.
• Up/Downbuontomoveamongentries(up/
downlines).
• Le/Rightbuontomoveamongvalueelds
(le/rightspaces).
• LebuontoreturntotheHomescreen.
NOTE: Alog-inmayberequiredtoaccessmenu
items.
SETPOINTS
COOL SETPT:
HEAT SETPT: 67° F
COOL SETBACK: 80° F
SAVE CHANGE?
NO
YES
Whenpromptedaboutachange(onanymenu),
pressRight/Le toselectthedesiredchoiceand
thenEnter.
About the FlexStat
ABOUT FLEXSTAT
MODEL: BAC–141136CE
FW: FLEXSTAT R1.3.0.0
APP: AIR HANDLER
OPT: MOD H / MOD C
MORE
MORE ABOUT
COMMUNICATION
FIRMWARE
HARDWARE
UPTIME: 28D 00:32:57
Thesedisplay-onlyscreensshowthefollowing
informationonvariousmenus(selectMOREand
thentherelevantcategorytoseethemall).
• Modelnumber
• Firmware(FW)typeandversion(seeFirmware
Upgrade on page 29)
• Applicationcongurationandoptions(setinthe
Applicationmenu—see(Advanced) Application
and Additional Setup on page 7)
MORE:Communication
• Deviceinstance(setintheDevicemenu—see
(Advanced) BACnet Device Properties on page 17)
• MACaddress,IPaddress,and/orSubnet
address(setintheCommunicationsmenu—see
(Advanced) Communications (BACnet) on page 16)
MORE:Firmware
• Firmwaretype,version,andbuilddate(see
Firmware Upgrade on page 29)
• Applicationsowareversion(ASV)
NOTE: ASVwillshowCUSTOMifanybuilt-in
ControlBasicprogram(1–5)isnotrunning
orhasauto-rundisabled.A+signwith
anumberindicatesthecustomprogram
numbercurrentlyrunning(e.g.,+8+9
indicatesPrograms8and9arerunning).
See(Advanced) CB (Control Basic)
Programs on page 10.
MORE:Hardware
• Modelnumber
• Serialnumberofunit
• Boardrevision
MORE:Uptime(theamountoftimesincethelast
reset)

FlexStat 7 Operation Guide, Rev. M
Advanced Menu
ADVANCED
APPLICATION
CB PROGRAMS
COMMUNICATION
DATE/TIME
DEVICE
INPUTS
LIMITS
TheAdvancedMenudisplaysvarioussubmenus.
Notallsubmenuscanbeseenonthescreenatone
time.Scrollupordowntoseeadditionalsubmenus.
NOTE: TheAdvancedMenuhasmoresubmenus
thancanappearonthescreenatonce.Keep
scrollingupordowntoseealltheoptions.
(Advanced) Application and Additional Setup
APPLICATION
DEGREES SCALE: °F
APP:
OPT: 4-PIPE
ADDITIONAL SETUP
FAN COIL
ADDITIONAL SETUP
DAMPER
FAN
HUMIDITY
MOTION SENSOR
OPTIMUM START
SENSORS
STAGING
Besuretoselectthecorrectdefault°F/°C
temperaturescaleFIRST!Tochangethe
temperaturescaleaertheapplicationis
congured,theselectedapplicationwillneedtobe
resettoNotCongured.Thechangewillalsonot
aectthedisplayuntilaertheFlexStathasbeen
restarted.
NOTE: Duringnormaloperation(aer
conguration),the°F/°Ctemperaturescale
canbetoggledonthedisplaybypressing
andholdingtheEnterbuon.SeeDisplay
Options on page 5.
Thetypeofapplication(aswellasthemodelof
FlexStat)aectsthecontext-sensitiveoptionsunder
AdditionalSetup.
NOTE: IfaFlexStatisconguredandthena
dierentapplicationisdesired(e.g.,AHU
insteadofFCU),restoringtheFlexStat
toitsfactorydefaultsrstandthen
reconguringitishighlyrecommended.
SeeRestore Factory on page 27.
Auxiliary Heat (Heat Pump Only) Setup
AUX HEAT SETUP
AUX HEAT:
DELAY (MINS): 60
COMP OAT LOW: 40° F
COMP LOCKOUT
ForHPUs,auxiliaryheatcanbesetfornone,with
compressorlockout,orwithoutcompressorlockout.
TheDelaytimecontrolshowlongthespacetemper-
aturemustbebelowtheauxiliaryheat’sstarttem-
peraturebeforeauxiliaryheatwillturnon.(Formore
details,seetheAuxiliary/EmergencyHeatsection
underSequenceofOperation(BAC-1xx63/1xxx63)in
theFlexStatApplicationGuide.)
CompOATLow(AV17)istheoutsideairtempera-
turevalue,belowwhichthecompressorislockedout
(whenlockoutisenabled).Theuserinterfacemin./
max.limitsare0and70degrees,withadefaultvalue
of40degreesF.
Damper Setup
DAMPER SETUP
ECON:
DCV: ADVANCED
DCV SETUP
MIN POSITION: 0%
CNTRL (0–100%): 2–10 V
ECON ENBLE TEMP: 55° F
LOW LIMIT ALARM: 45° F
MODULATING
IftheEconomizeroptionisselectedwhenthereis
nomixedairtemperaturesensorconnected,aLow
LimitAlarmwillresult.SeeAlarms on page 23.ALow
LimitAlarmwillclosethedampers,openthehot
watervalveifpresent,andshuttheunitdown.
OutsideAirDamperLowLimitmaintainsamini-
mummixedairtemperature.Itwilloverrideecono-
mizing,DCV,orothercallsforventilationiflow
temperaturethreatenstodamageequipment.For
modulatingeconomizers,OADLowLimitisenabled
bydefaultbutcanbedisabledifdesired(suchasfor
anAHUwithgasheat).
CAUTION
Do not disable the OAD Low Limit if coils or
other equipment may consequently be damaged
by low temperatures.

FlexStat 8 Operation Guide, Rev. M
WhenBAC-1xxxxxmodelshaveanapplicationwith
theCO2sensorANDthemodulatingeconomizer
optionenabled,menuitemsforDCV(Demand
ControlVentilation)willappear.Forinformation
abouttheDCVoptions,see(Advanced) CO2 Sensor
(and DCV) on page 11.
Fan Setup
FAN SETUP
SPEEDS:
OFF DELAY (SECS): 180
UNOCC: AUTO
OCC: AUTO
HTG FAN: AUTO
CONSTANT SPEED
Forheatingapplications,HeatingFanissettoAuto
bydefaultbutcanbedisabledifneeded(suchasfor
anFCUthatisfactorywiredtorunataxedspeed
orforabaseboardheaterwithoutafan).TheHeating
Fanselectionisonlyavailablewhentheapplication
supportsheatingandeitherOccupiedfanorUnoc-
cupiedfanissettoAuto.
NOTE: ForaFanFailAlarm,seeSensor Setup on
page 9andAlarms on page 23.
Humidity Setup
HUMIDITY SETUP
DEHUMIDIFICATION
HUMIDIFICATION DEHUMIDIFICATION
DEHUM: ENABLE
NOTE: Ifadehumidicationoptionisenabled,the
SpaceHumidityAlarmwillalsobeenabled.
SeeAlarms on page 23.
Motion Sensor Setup
MOTION SENSOR
OCC OVERRIDE:
STATE: OCCUPIED
STANDBY: DISABLE
—OFFSET: 3° F
—TIMER (MINS): 30
ENABLE
Amotion/occupancysensormaybeenabled(the
default)totriggeroccupancyoverride(enabledby
default,butonlyfunctionalduringscheduledo
times)andoccupancystandbyinrelationtothe
scheduledonandotimes.(Seethechart.)
DuringscheduledOFF(unoccupied)times,
temperatureiscontrolledaccordingtotheseingof
theappropriateheatorcoolsetback(seeSetpoints
on page 25).Occupancyoverride(for1hourasa
default)startswhenthesensordetectsmotion.
Temperaturewillstartbeingcontrolledaccording
totheappropriatesetpoint.Occupancyoverridewill
end(withthedefaultseing)1houraermotion
waslastdetected.Thelengthofoccupancyoverride
iscongurableintheSystemmenu.SeeSystem
Modes on page 25.
DuringscheduledON(occupied)times,temperature
iscontrolledaccordingtotheseingoftheappro-
priateheatorcoolsetpoint.Ifenabled,occupancy
standbysetsthetemperaturebackorup(according
totheheating/coolingmode)bytheOsetamount
whennomotionisdetectedfortheTimeramount(30
minutesbydefault).Thenormalsetpointisrestored
whenmotionisdetectedtwice(toreducefalsedetec-
tions)withinthreeminutes.
NOTE: Occupancystandby,whenactivated,lets
thetemperaturegodownorup(according
totherelevantmode)bytheOsetamount
(3°bydefault),nottheSetbackseinginthe
Setpointsmenu(whichusuallyhasalarger
temperaturedierentialmeantforalonger
otime).
NOTE: WhentheAdvancedDCVmodeisselected,
Standbyisenabledbydefaultandwhen
revertingfromStandbybacktoOccupied
mode,thesetpointisrestoredby1°every
15minutes—tofurtherconserveenergy
accordingtotheguidelinesbyPortland
EnergyConservation,Inc.(PECI).In
BasicorStandardDCVmodeornoDCV
isselected,thesetpointvalueisrestored
bythefullamountimmediatelywhen

FlexStat 9 Operation Guide, Rev. M
revertingfromStandbybacktoOccupied
mode(althoughitmaystilltakesome
timefortheroomtoreachitsnormal
temperature).See(Advanced) CO2 Sensor
(and DCV) on page 11.
NOTE: DCVisonlyavailableinmodelswiththe
built-inCO2sensor.












 



TheStateeldmonitorswhethermotionhasbeen
detectedduringthelastscanofthemotionsensor
input(BI6).Detectedmotionwillshowan“occu-
pied”state.Thiscanbeusedduringtroubleshooting
todetermineifmotionisbeingdetected.
Optimum Start Setup
OPTIMUM START
OPT START: DISABLE
WhenOptimumStartisenabled,theFlexStatsoon
“learns”theamountoftimerequiredtoreach
thesetpointfromthesetback/setuptemperature.
Itwillthenadjusttheactualstarttimeneeded
toreachthedesiredsetpointatthebeginning
ofthescheduledOntimes.(Seethechartinthe
(Advanced)MotionSensorsection.)Itwillalsomake
seasonaltemperatureadjustmentsifanoutsideair
temperaturesensorisconnectedappropriately.
NOTE: Formaximumeciency,ifOptimum
Startisenabled,settimesinschedulesfor
whentheroomtemperatureshouldreach
thesetpoint,notwhenheating/cooling
equipmentshouldstart(whichwouldbe
earlier).SeeSchedules on page 24.
NOTE: Fordetailsoftheenergy-savingcalculations
performed,seetheOptimumStartsection
intherelevantSequenceofOperationinthe
FlexStatApplicationGuide.
Sensor Setup
SENSOR SETUP
IN 2:
IN 9: CO2
SPACE TEMP: REMOTE
-- IN 1 IS ONBOARD
-- IN 7 IS REMOTE
DISCH AIR TEMP
TheInput7sensor(AI7)canbeconguredforare-
motespacetemperaturesensor.Thenspacetemper-
aturecanbeconguredforonboard(internalAI1),
remote(AI7),averagingofthetwo,thelowestread-
ing,orthehighestreading.Tocalibrateandchange
thethermistortype,see(Advanced) Inputs on page 17.
TheInput2sensor(AI2)canbeconguredfordis-
chargeairtemperature(DATandTypeIIIthermistor
isthedefault),fanstatus(drycontact),orunused.
• IfAI2issetfordischargeairtemperature,a
trendlogisautomaticallycreatedandmonitors
thedischargeairtemperature,butithasnoeect
onoperation.Thesensorcanbecalibratedand
changedfromthedefaultTypeIIIthermistortoa
TypeII.See(Advanced) Inputs on page 17.
• IfAI2issetforfanstatusandnoclosedcontactis
detectedwhenthereisacallforfanoperation,a
FanFailAlarmiscreated.SeeAlarms on page 23.
• IfAI2issetforunused,built-inapplicationswill
notuseit,buttheinputwouldbeavailablefor
customprogramming.
InBAC-12xxxx/13xxxx/14xxxxmodels,theInput9
sensor(AI9)canbeconguredforanexternalKMC
SAE-10xxCO2sensor.Formoreinformation,see
DCV (Demand Control Ventilation) Setup on page 12.
SeealsoMotion Sensor Setup on page 8.

FlexStat 10 Operation Guide, Rev. M
Setback (OAT) Lockout Setup
SETBACK LOCKOUT
OAT LOCKOUT:
LOCKOUT TEMP: 30° F
ENABLE
SetbackOATlockoutisdisabledbydefault.When
enabled,AI4isconguredforOATandtheLockout
Tempselectionappearsinthemenu.Thismaybe
usefulwhenasystem,suchasanHPU,mayhave
dicultyrecoveringfromtheunoccupiedsetpointto
theoccupiedsetpointduringverycoldweather.
NOTE: Whenenabled,thedefaultvalueis30°F
(–1°C)forHPUand10°F(–12°C)forall
otherapplications.Thevalueisadjustable
between–50and120°F(–45.5and49°C).
Staging Setup
STAGING
STG DELAY (MINS): 3
Aertherststagestartsinmultistageheatingor
cooling,thedefaultdelaytimebeforethesecond
stagecanstartis3minutes.
Valve Setup
VALVE SETUP
CLG (0–100%):
HTG (0–100%): 0–10V
0–10V
Proportionalvalveshavea0–10VDCdefaultfor
0–100%open.Changeasneeded(e.g.,10–2VDC).
(Advanced) CB (Control Basic) Programs
CB PROGRAMS
PROG1:
PROG2: RUNNING
PROG3: RUNNING
PROG4: RUNNING
PROG5: RUNNING
PROG6: HALTED
PROG7: IDLE
RUNNING PROGRAM #1
SETPOINTS & MODES
AUTO-RUN: TRUE
CHANGE: READY
STATE: RUNNING
HALT REASON: NORMAL
HALT DESC:
OUT OF SERVICE: FALSE
Tohaltorload/runthebuilt-in(1–5)andcustom
(6–10)ControlBasicprograms,navigatetothede-
siredlineandselection.
IfcustomControlBasicprogramsareinstalledanda
restoretofactoryseingsisperformed,allfactory
programsarerestartedbutallcustomControlBasic
programsarehalted.Changethestateofeachpro-
grambyloading/runningtheprogramfromtheCB
Programsmenu(orBACstageorTotalControl).
IfcustomControlBasicprogramsareinstalledand
settoautorun,wheneverthermwareisupdated,
ALL(factoryandcustom)programsarehalted.If
customControlBasicprogramsareinstalledbut
NOTsettoautorun,wheneverthermwareisup-
dated,factoryprogramsarerestartedbutany(manu-
al)runningcustomprogramsarehaltedatrestart.
Changethestateofeachcustomprogrambyusing
theUpdateManagerorloading/runningeachpro-
gramfromtheCBProgramsmenu(orBACstageor
TotalControl).
UPDATE MANAGER
PROGRAM CONFIG ERROR
ENABLE FACTORY:
ENABLE CUSTOM: NO
EDIT CB PROGRAMS
DONE
NO
IntheAboutmenu,ASVwillshowCUSTOMifany
built-inControlBasicprogram(1–5)isnotrunning
orhasauto-rundisabled.SeeAbout the FlexStat on
page 6.
NOTE: Customizedprogramsaretheresponsibility
oftheuser.KMCControlsdoesnotprovide
supportforsuchprograms.

FlexStat 11 Operation Guide, Rev. M
(Advanced) CO2 Sensor (and DCV)
CO2 SENSOR
SENSOR INFO
CALIBRATION
CO2 SENSOR INFO
MODEL: T6615
SUB VOL: A15
SW DATE: 090217
S/N: AB00011759
CO2: 873
ELEVATION: 0
STATUS: NORMAL
CO2 CALIBRATION
ELEVATION: 0
REFERENCE GAS: 300
MODE: MONITOR
CO2: 1067
STATUS: NORMAL
CAL TIME: 00:00
CO2 Sensor Setup and Information
NOTE: SetthedesiredCO2setpointunderthe
Setpointsmenu.SeeSetpoints on page 25.
Formaximumsensoraccuracy,entertheelevation
(altitude)abovesealevelofthebuilding’slocation.
(Thedefaultvalueis0.)Elevationforanyparticular
locationcanbefoundatsuchsourcesaswww.earth-
tools.org.(Forverytallbuildings,theupperoors
wouldhaveahigherelevationthanloweroors.)
AerpowerisrstappliedortheFlexStatisrestart-
ed,thesensorgoesthroughawarm-upforapproxi-
matelyhalfaminute.Duringthetimethesensor
countwillbe0ppmandtheStatuslinewilldisplay
WARMUPinsteadofNORMAL.
Thesensoranditsrmwareareidentiedbythe
model,thecompilationsubvolume(SUBVOL),com-
pilationdate(SWDATEinyymmddformat),and
serialnumber.
NOTE: WiththeCO2sensorenabled,atrendlogis
automaticallygenerated.See(Advanced)
Trend Logs on page 20.
CO2 Sensor Calibration
TheBAC-13xxxxmodels(withT6613modelsensors)
donothaveacalibrationwithgasoption.Ituses
AutomaticBackgroundLogic,orABCLogic™,apat-
entedself-calibrationtechniquedesignedtobeused
inapplicationswhereconcentrationswilldropto
outsideambientconditions(approximately400
ppm)atleastthreetimesina14dayperiod,typi-
callyduringunoccupiedperiods.WithABCLogic
enabled,thesensorwilltypicallyreachitsoperation-
alaccuracyaer25hoursofcontinuousoperation
ifitwasexposedtoambientreferencelevelsofair
at400±10ppmCO2.Thesensorwillmaintainac-
curacyspecicationswithABCLogicenabled,given
thatitisatleastfourtimesin21daysexposedtothe
referencevalueandthisreferencevalueisthelowest
concentrationtowhichthesensorisexposed.ABC
Logicrequirescontinuousoperationofthesensorfor
periodsofatleast24hours.
TheBAC-14xxxxmodels(withT6615modelsen-
sors)haveacalibrationoptionforapplyinggas
tothesensorformaintainingmaximumaccuracy.
TheBAC-14xxxxhasadualchannelsensor(aCO2
channelmeasuresgasconcentration,andareference
channelmeasuresthesensorsignalintensity).Self-
calibrationsareperformedapproximatelyevery24
hoursusingthereferencechannel.Duringtheself-
calibrationthesensorPPMreadingisfrozenandwill
notreacttochangingCO2.
Iftheunithasbeeneld-calibratedsinceleavingthe
factory,informationaboutthelastcalibration(date,
elevation,andppmofreferencegas)willbedis-
playedinthelowerpartofthescreen.
Calibrationshouldbedoneinanareawithstable
spacetemperature.Thereshouldbenosignicantair
drasortemperaturevariationsduringthecalibra-
tionprocedure.
TocalibratetheBAC-14xxxxmodels,aKMCHTO-
1103andaGETelaire2075(orequivalent)kitand
gasarerequired:
1. FollowtheinstructionsintheGETelaire2075(or
equivalent)calibrationkitandgas,availablelo-
callyorfromvendorssuchasinstrumart.com,tes-
tequipmentdepot.com,grainger.com,calibration-
gas.com,and/orbuycalgas.com)foraachinga
regulatorandtubetoacylinderofreferencegas.
2. OntheFlexStat,turnthehexscrewsinthebot-
tomandtopclockwiseuntiltheyclearthecover.
3. Carefullypullthecoverawayfromthebackplate
(mountingbase).
4. Aachtheadapterplate(withaachedpower
cable)fortheBAC-13xxxx/14xxxxFlexStatfrom
theHTO-1103FlexStatFirmwareUpgradeKitto
thebackofthecover.(SeetheHTO-1103Instal-
lationGuideformoreinformation.)
5. Removetheprotectiverubbercapfromthepower
adaptorcable’stwopinsandinsertthepinsinto
the24VACpowersection(Comand~onlower
right)ofthewall-mountedterminalblocks.(Keep
thecaponthepinswhennotinuse.)Allowthe
unittowarmupforseveralminutesbeforepro-
ceeding.
6. Removetheprotectivecapsfrombothofthecali-
brationtubeingsonthebackoftheFlexStat
board.

FlexStat 12 Operation Guide, Rev. M
NOTE: Althoughthecapsarenotrequiredfor
maintainingtheaccuracyofthesensor,
theyprotectagainstinsects,dust,orother
contaminantsfromgeinginsidethetubes.
Ifacapislost,thesensorwillstillfunction
normally,butthecapshouldstillbe
replacedassoonasisfeasible.
7. Connectthetubingfromthereferencegascylin-
dertoeitheroftheFlexStatcalibrationtubet-
tingsusingthe3.5"-longadaptertubing(201-403-
03)fromtheHTO-1103FlexStatFirmwareFlash
UpgradeKit.Oneendoftheadaptertubingts
overoneoftheFlexStatcalibrationtubeings.
Theotherendtsinsidethestandard1/4"OD
tubingthatcomesfromtheregulator.
Kit Tubing
Adapter
Calibration
Gas Cylinder
Cylinder Tubing
(Push Adapter
Inside the Tubing)
CO2 Sensor Fittings
(Push Adapter Over
Either Fitting)
NOTE: Itmaybeeasiertoaachtheadaptertubing
totheingbeforeaachingthebackplate
totheFlexStat.
NOTE: TheprogrammingpodandUSBcable
intheHTO-1103kitarenotusedduring
CO2calibration.TheBAC-13xxxx/14xxxx
backplateadapterinthekitisusedforboth
CO2calibrationandrmwareupgradingfor
thosemodels.
8. SelecttheAdvanced>CO2Sensor>Calibration
menu.
9. Entertheelevationandppmofthereferencegas
used.(Elevationforanyparticularlocationcanbe
foundatsuchsourcesaswww.earthtools.org.)
10. Openthecylinder’sregulatortoallow7psiof
gasthroughthesensor.
11. ChangeModefromMonitortoCalibrateand
pushEnter.TheCalibrationTimewillbegin
countingattheboomofthescreen.
NOTE: Aerinitiating,thecalibrationprocess
takesapproximately4minutesandcannot
bestoppedbyanybuonpressesuntil
thecycleiscomplete.Ifpowerisremoved
beforethecalibrationprocessiscompleted,
theoldvalueswillberetained.
NOTE: Nomaerwhatthenormalinactivitytime-
outseingis,time-outforthecalibration
screenis10minutes.See(Advanced) User
Interface (UI) on page 21.
12. Aerthecalibrationprocessiscomplete,Mode
willchangefromCalibratetoMonitor.Pressthe
Lebuonandinformationaboutthemostrecent
calibration(date,elevation,andppmofreference
gas)willbedisplayedinthelowerpartofthe
screen.
13. Turnothegas,removetheconnectedtubing,
andreinstalltheprotectivecapsinthecalibration
tubes.
14. Carefullyremovetheadapterplateandpower
cableandreinstalltheFlexStatonitsbackplate
whilebeingcarefulnottopinchordislodgeany
wiring.
15. Backthehexscrews(counterclockwise)outofthe
bracketsuntiltheyengagetheFlexStatcoverand
holditinplace.
DCV (Demand Control Ventilation) Setup
DAMPER SETUP
ECON:
DCV: ADVANCED
DCV SETUP
MIN POSITION: 0%
CNTRL (0–100%): 2–10 V
ECON ENBLE TEMP: 55° F
LOW LIMIT ALARM: 45° F
MODULATING
DCV SETUP
VENT MODE: STARTUP
DCV DAMPER SETUP
CO2 MAX (PPM): 1000
CO2 BASE (PPM): 400
OA AREA: 2%
OA FULL: 5%
OA MAX: 40%
DCV SETUP
OA PURGE: 0%
OA LOW VENT: 65°F
OA HIGH VENT: 80°F
FAN MAX OFF (MINS): 30
CLG DESIGN TEMP: 95°F
HTG DESIGN TEMP: 20°F
VENT OVRIDE (MINS): 30
TheCO2sensorisusedwithDCV(DemandControl
Ventilationsequencestoprovideoptimalventila-
tionandenergysavingsforaspace.WhenBAC-
12xxxx/13xxxx/14xxxxmodelshaveanapplication
withtheCO2sensorANDamodulatingeconomizer
optionenabled,menuitemsforDCV(DemandCon-
trolVentilation)willappear.MostDCVseingsare
accessedfromtheDampersetupmenu.SeeDamper
Setup on page 7,Setpoints on page 25,andDCV (De-
mand Control Ventilation) on page 24.

FlexStat 13 Operation Guide, Rev. M
CO2
Setpoint
0%
Space CO2
CO2
Maximum
DCV Signal
Component
to OAD
100% Basic DCV Configuration
CO2
Base
Outside Air
Damper
Position
Component
• STANDARDDCV—WhentheBAC-13xxxx
seingsareproperlycongured,thiscomplies
withCATitle24,Section121(c).Thiswouldalso
applytoaproperlyconguredBAC-12xxxxwith
aremoteSAE-10xxCO2sensor.StandardDCV,
undermostconditions,issomewhatlessenergy
ecientthanBasic,butitenhancesIAQ.*
*NOTE: TheCO2sensorsintheBAC-13xxxxseries
FlexStats(aswellasproperlycongured
SAE-10xxCO2detectors)havebeencertied
tocomplywithCATitle24,Section121(c),
aswellassub-paragraph4.Fthatspecies
accuracywillbemaintainedwithin
toleranceforaminimumof5yearswithout
recalibration.Seethedatasheetformore
information.
CO2
Setpoint
OA Full
OA Area
0%
Space CO2
CO2
Maximum
DCV Signal
Component
to OAD
100% Standard DCV Configuration
CO2
Base
Outside Air
Damper
Position
Component
“Basic” Signal
“Standard”
Signal
• ADVANCEDDCV—Whentheseingsare
properlycongured,thiscongurationcomplies
withCATitle24,Section121(c)andASHRAE
Standard62.1-2010andfollowsguidelinesby
PortlandEnergyConservation,Inc.(PECI).
AlthoughAdvancedDCVisthemostcomplexto
congure,itismoreenergyecientthanStan-
dardwhilestilloptimizingIAQ.
AlthoughBAC-12xxxxFlexStatsdonothaveabuilt-
inCO2sensor,theystillhaveDCVcontrolsequences
available.WhenDCVisenabledintheDamper
Setupmenuofthesemodels,IN9isassumedtobe
connectedtoanexternalSAE-10xxCO2(ductor
space)sensor.0–5VDConthatinput(congured
inthe(Advanced) Inputsmenu)willmapto0–2000
ppm.TheoutputoftheconnectedSAE-10xxmust
alsobeconguredtomatchtheFlexStat’sinput(see
theinstallationguidefortheappropriateSAE-10xx
model),andtheFlexStat’sIN9pull-upresistormust
besetfor0–12VDC(seetheappropriateFlexStat
installationguide)!BAC-13xxxx/14xxxxFlexStats
alsohavetheexternalsensoroption,andifused,the
highestofthetworeadings(internalvs.external)
willbeusedtocontrolDCVsequences.TheCO2ppm
display(ifenabled)alsoshowsthehighestofthetwo
levels.(Allowatleast15minutesaerinstallationfor
thereadingtostabilize.)
NOTE: Notallapplicationshaveamodulating
economizeroption.Withoutamodulating
economizerselected,DCVwillnotappear
inanymenus,butthe(Advanced)CO2
SensormenuwillremainandtheCO2ppm
readingswillstillshowonthedisplay.
NOTE: AnalarmisgeneratedwhentheCO2levelis
toohighfortoolong.SeeAlarms on page 23.
NOTE: ThevariousOutsideAir(OA)%seings
availablearethepercentagethattheOA
damperisopenandnotthepercentage
ofOAow.Theseseingsshouldbe
measuredandsetaccordingly.
NOTE: SeetheDCVsectionintherelevant
SequenceofOperationoftheFlexStat
ApplicationGuideformoreinformation
aboutthemodesandoptionsdescribedin
generaltermshere.
ThethreetypesofDCVcongurationsavailable
are:
• BASICDCV—ProvidessimpleDCV,modulat-
ingtheoutsideairdamperindirectresponseto
thecurrentCO2levelwithrespecttoitssetpoint.
BasicDCVismuchmoreenergyecientthanno
DCVatall,whilemaintainingadequateIAQ(In-
doorAirQuality).ItistheeasiestDCVmethod
tocongure.However,whereVOCs,radon,or
otherpollutantsbecomeexcessiveduringunoc-
cupiedtimes(withnoventilation),theFlexStat’s
StandardorAdvancedDCVcongurationis
recommended.

FlexStat 14 Operation Guide, Rev. M
OA Max
OA Full
OA Area
0%
Space CO2
CO2
Maximum
DCV Signal
Component
to OAD*
100% Advanced DCV Configuration
CO2
Base
Outside Air
Damper
Position
Component
*Under Normal
Vent Mode operation
(see Vent Mode description)
NOTE: ThethreegraphsaboveshowtheDCV
componentofthesignaltotheoutside
airdamper.Dependingontheconditions
andtheDCVconguration,thesignal
tothedampermightbecontrolledby
MinimumPosition,EconomizerLoop,or
othercomponents.Themaximumofthese
componentvaluesisused,notthesum
ofthem.(IfthereisaLowLimitalarm,
however,thesesignalsareoverridden,and
thedamperisclosed.)
Thethreetypesofcongurationshavevariouscom-
binationsofthefollowingDCVOPTIONS.
CLGDESIGNTEMP=Thehighestoutsideair
temperature(95°Fdefault)forwhichthe
building’scoolingsystemisdesigned.
CO2MAX(PPM)=ThedesiredmaximumCO2
concentrationlevelduringanoccupied
period(1000ppmdefault).InBASICand
STANDARDDCVmodes,theeconomizer
damperwillmodulatetofullyopenatthis
level.
CO2SETPT(PPM)=ThedesiredCO2levelatwhich
pointtheeconomizerdamperwillbegin
modulatingopenfromMINPOSITION
(600ppmdefault).Belowthislevel,
theeconomizerdamperwillbeatMIN
POSITIONduringOccupiedmode.(This
canbeadjustednolowerthantheCO2
BASE.)
CO2BASE(PPM)=ThepresumedaverageCO2
concentrationlevelofoutsideairatthe
building’slocation(400ppmdefault).
DCVDAMPERSETUP=Atestmodeisusedto
determineproperoutsideairdamper
positionvaluesforOAAREA,OAFULL,
OAMAX,andOAPURGE.Therequired
airowsforthesefourpositionsare
determinedbyASHRAE62.1-2007section
6.2.6.2.Atechnician/balancerusesthis
menutosetspecicdamperpositionsand
measuretheresultingairows.Thedamper
positionsarethencorrelatedtotherequired
airows.Onehouraerthesetupmodeis
activated,itwillreturntothedefaultAUTO
seing,oritcanbemanuallysettoAUTO
aertestingiscompleted.
FANMAXOFF(MINS)=Themaximumtime(30
default)thesupplyfanmayremaino
duringoccupiedtimes.
HTGDESIGNTEMP=Thelowestoutsideair
temperature(20°Fdefault)forwhichthe
building’sheatingsystemisdesigned.
OAAREA=Theoutsideairdamperposition(2%
default)requiredtoprovidetheoutdoor
airratebasedonthezonearea.Thisis
basedonASHRAE62.1-2007section6.2.6.2.
(Notethatthisvaluerepresentsthedamper
position,nottheminimumoutsideair
percentage.)TheOAdampershallbeatthis
positionwhenSpaceCO2isatorbelow
CO2BASE.Thevalueisdeterminedusing
DCVDAMPERSETUP.
OAFULL=Theoutsideairdamperposition(5%
default)fortheOAAREAplusthepeople
occupyingthespace.Theoutsideair
dampershallbeatthispositionwhen
SpaceCO2isatCO2MAX.Thevalueis
determinedusingDCVDAMPERSETUP.
OAHIGHVENT=Thehighesttemperature(80°
Fdefault)thatwoulduse100%OAfor
recovery.
OALOWVENT=Thelowesttemperature(65°F
default)whichwoulduse100%OAfor
recovery.(IfoutsideairtempisbetweenOA
lowventandOAhighvent,theoutsideair
damperwillbeopen100%duringrecovery
mode.)

FlexStat 15 Operation Guide, Rev. M
OAMAX=Themaximumallowable%ofoutside
airdamperposition(40%default)for
ventilation(notcooling)purposes.The
valueisdeterminedusingDCVDAMPER
SETUP.
OAPURGE=Duringthe60minutespriorto
scheduledstarttime,theoutsideair
damperwillopentothisposition(0%
default)toperformapurgeofthezone.
ThevalueisdeterminedusingDCV
DAMPERSETUP.


 











 









VENTMODE=Displays(only)inwhichventilation
modetheFlexStatisfunctioning(see
illustration):
• Normal—Typicalventilationduring
theoccupiedperiod(aerPre-purge,
Startup,orRecoverymodeshave
nishedandreturnedtheventilation
rateto“normal”operation).
• Pre-purge—Ifenabledinthe
programming(disabledbydefault),
thespaceisventilatedwithmaximum
outsideairfor60minutesbeforethe
occupiedstarttime.(SeeStartup.)
• Startup—Ifpre-purgeisdisabled
(default)andthemotionsensor
detectsmotionduringthe20minutes
aeroccupiedstarttime,thespaceis
ventilatedwithmaximumoutsideair
until20minutesaeroccupiedstart
time.
• Standby—Aerthemotionsensorhas
notdetectedmotionfor30minutes,
temperaturesetpointsareadjusted
(downforheatingandupforcooling),
andtheoutsideairdamperisclosed.
• Recovery—Aeraperiodinwhich
thesupplyfanwaso,thespaceis
ventilatedwithanincreasedpercentage
ofoutsideair(tocompensateforthe
previousreducedventilation).
• Override—Ventilationoverridehas
beenmanuallyselectedfromtheDCV
menu,andthespaceistemporarily
(30minutesdefault)driventothefull
ventilationposition(formaximum
designoccupancy)ifitisnotalready
atthatposition.SeeDCV (Demand
Control Ventilation) on page 24.
VENTOVRIDE(MINS)=Amountoftimefor
VentilationOverrideoperation(30minutes
default).SeeDCV (Demand Control
Ventilation) on page 24.

FlexStat 16 Operation Guide, Rev. M
(Advanced) Communications (BACnet)
COMMUNICATIONS
ACTIVE:
ETHERNET SETTINGS
IP SETTINGS
FOREIGN DEV SETTINGS
MS/TP SETTINGS
CONFIGURE
COMMUNICATIONS
ACTIVE:
MAC: 00:D0:6F:89:00:01
ETHERNET
COMMUNICATIONS
ACTIVE:
IP ADDRESS: 192.168.1.254
SUBNET MASK: 255.255.0.0
GATEWAY: 255.255.255.255
UDP PORT: 47808
IP
COMMUNICATIONS
ACTIVE:
IP ADDRESS: 172.16.1.254
UDP PORT: 47808
TIME TO LIVE (SECS): 600
FOREIGN DEVICE
COMMUNICATIONS
ACTIVE:
MAC ADDRESS: 1
BAUD RATE: 38400
AUTO-BAUD: OFF
MAX MASTER: 127
MAX INFO FRAMES: 1
MS/TP
ForMS/TPcommunications,connecttheEIA-485
wiringto–Aand+Bterminalsonthebackplate(see
therelevantmodel’sinstallationguide).ForEthernet
IP,andForeignDevicecommunications(onrelevant
“E”models),pluganEthernetcabledirectlyintothe
RJ-45modularjackonthebackoftheFlexStat.
TosetprotocolandparametersforBACnet
communications,selectCongure,andthenpress:
1. Up/Downtomoveamongentries.
2. Entertoselect.
3. Right/Letomoveamongvalueelds.
4. RestarttheFlexStatforthenewprotocolto
becomeActive.(SeetheDevicemenu.)
NOTE: EvenifMS/TPistheonlyoptionin
rmwareR2.0.0.6andlater,CONFIGURE
MUSTFIRSTBESELECTEDbeforeany
ofthevaluescanbechanged!Otherwise
thevaluesarereadonly.
Onlyoneprotocolcanbeenabledatanytime.The
IP/Ethernetmodesdonotserveasroutersforthe
MS/TPconnection.
ForMS/TPEIA-485communications,theMax
MasteristhehighestMACaddressadevicewill
aempttolocatewhenpollingformasterdeviceson
thelocalnetwork.Toavoidpossiblecommunication
issueswiththenetworkoracomputerconnected
throughaKMD-5576USBCommunicator,theMax
Masternumbershouldbethelowestnumber
neededforthatnetwork.
MaxInfoFrames(viewonly)isthemaximum
numberofinformationframes(datapackets)that
acontrollermaysendoutbeforeitmustpassthe
token.
TocommunicatewithaKMD-5576throughthedata
portattheboomofthecase,IP/Ethernet-enabled
FlexStatmodelsinoneoftheEthernetorIPmodes
must(temporarily)besetforMS/TPmode(and
restarted)!(SeeReseing the FlexStat on page 26.)
ForIPandIPForeignDevicecommunications,
consultwiththesystemadministratorforthe
appropriateseingsfortheIPAddress,Subnet
Mask,Gateway,andUDPPort.
Ethernetcommunicationsareessentiallyplug-and-
play,andtheMACaddressisnotchangeable.
(Advanced) Date/Time
DATE/TIME
DATE:
TIME: 1:43:59 PM
UTC OFFSET: 300
DST ENABLE: TRUE
DST AUTO: TRUE
DST START:
>2ND SUN MAR 2:00 AM
APRIL 11 2009
NOTE: WhenaFlexStatispoweredupaer
losingtheRTC(RealTimeClock)time,it
willreverttothedefaulttimeanddateof
January1,2000,12:00:00AM.
ForareasthatobserveDST(DaylightSavingTime),
selectTrue/OnforDSTENABLE.TheDSTperiodis
currentlythesecondSundayofMarchthroughthe
rstSundayofNovember,butthesedatescanbe
changedinthemenuiftheocialperiodchangesor
iftheinstalledlocationneedsascheduleadjustment
forbeeroperation.
NOTE: AnissuecanoccurifaFlexStathasbeen
unpoweredlongenoughforittoloseits
RTCtimekeepingduringtheperiodDST
isineectANDatimesynchronization
commandissentfromBACstageor
TotalControltotheFlexStat.Thetimewill
berestoredtothecorrecttimeanddate.
However,theFlexStatwillassumethatthis
timeisnon-DST.Withinaboutoneminute
aertheinitialtimesynchronization
(duringDSTmonths),thedevicetimewill
resettoDSTmode,andthedevicetimewill
moveonehourahead.Thiswillaectthe
displayedtimeontheLCDdisplayaswell

FlexStat 17 Operation Guide, Rev. M
asanyschedules.Thisissuewillnotaect
powered-upFlexStatsduringnon-DST
periods(e.g.,mostofNovemberthrough
February).Ifthetimehaserroneously
advancedonehouraeraninitialtime
synchcommand,theeasiestsolution
istosimplysendasecondtimesynch
command.Thiswillcorrectthedevicetime.
Alternately,thehourcanbechangedinthe
FlexStat’smenu.
IftheFlexStatisusedinaBACnetnetworkwithUTC
(CoordinatedUniversalTime)synchronization(via
broadcastingoraddressingasinglethermostat)setthe
UTCOsetvalue.TheUTCOsetvalueisinminutes
andcorrespondstothedistanceofthelocaltimezone
tothezerodegreemeridian.Instand-aloneoperation
ornetworksthatdonothaveUTCbroadcasts,seing
thisvalueisnotnecessary.
SampleTimeZones OsettoEqualUTC
Alaska 9hours=540minutes
USA/CanadaPacic
StandardTime
8hours=480minutes
USA/CanadaMountain
StandardTime
7hours=420minutes
USA/CanadaCentral
StandardTime
6hours=360minutes
USA/CanadaEastern
StandardTime
5hours=300minutes
Bolivia,Chile 4hours=240minutes
Argentina,Uruguay 3hours=180minutes
UnitedKingdom,
Portugal
0hours=0minutes
Europe(mostcountries) –1hours=–60minutes
Egypt,Israel,Turkey –2hours=–120minutes
Kuwait,SaudiArabia –3hours=–180minutes
UnitedArabEmirates –4hours=–240minutes
India,SriLanka –5.5hours=–330minutes
China,Mongolia –8hours=–480minutes
Korea,Japan –9hours=–540minutes
NewZealand –12hours=–720minutes
NOTE: TheBACnetstandardforthisosetvalue
is:“Thetimezonestothewestofthezero
degreemeridianshallbepositivevalues,
andthosetotheeastshallbenegative
values.”Thevalueisinminutes,nothours.
(Advanced) BACnet Device Properties
DEVICE
INSTANCE:
NAME: FlexStat_101
LOCATION: KMC Controls
1
TosettheBACnetdeviceinstance,name,and
location,press:
1. Up/Downtomoveamongentries.
2. Entertoselect.
NOTE: InrmwareversionsR1.3.0.4andearlier,
theFlexStatcouldalsoberestartedor
restoredtofactorydefaultsfromthis
menu.InR2.0.x,thisfunctionwasmovedto
aseparatemenu.See(Advanced) Restart/
Restore on page 18andReseing the FlexStat
on page 26formoreinformationaboutthat
function.
(Advanced) Inputs
INPUTS
1: SPACE TEMP
2:
3: MIXED AIR TEMP
4: OUTSIDE AIR TEMP
5: SPACE HUMIDITY
7: REMOTE SPACE TEMP
8: AI_08
DISCH AIR TEMP
INPUT #2
DISCH AIR TEMP
VALUE: 60.0° F
CAL. OFFSET: 0.0
OUT-OF-SERVICE: FALSE
FILTER WEIGHT: 6
SENSOR: 10K TYPE III
Inputsvaryaccordingtomodel,selectedapplication,
andselectedapplicationoptions.See(Advanced) Ap-
plication and Additional Setup on page 7.
Valuewillshowatemperaturereadingoravoltage
(0.0to3.0),dependingonthesensor.Analogsensors
canbecalibratedusingtheCalibrationOsetoption
(seetheFlexStatApplicationGuidefordetails).
LowerFilterWeightvaluescausethesensorreadings
toreactmorequicklytosuddenchanges,andhigher
valuescausesensorreadingstoreactmoreslowly
(stabilize)tosuddenchanges.

FlexStat 18 Operation Guide, Rev. M
(Advanced) PID Loop Configuration
LOOP CONFIGURATION
COOL PROP:
HEAT PROP: 2.0° F
COOL INTG: 4/hr
HEAT INTG: 4/hr
ECON PROP COLD: 30° F
ECON PROP NORMAL: 15° F
ECON INTG: 6/hr
2.0° F
ThismenuallowschangestothedefaultPID
(ProportionalIntegralDerivative)loopvalues.
NOTE: CoolingProportionalBandandHeating
ProportionalBandwerecalledDeadband
inFlexStatrmwareversionsearlierthan
R2.0.0.6(seethediagram).
NOTE: Economizervaluesonlyappearifa
modulatingeconomizeroptionisselected
intheAdvanced>Application>Additional
Setup>Dampermenu.SeeDamper Setup
on page 7.
NOTE: Ifspacetemperatureisovershootingthe
setpoint,trychangingtheintegralvalueto
eitheraslightlyhighervalueorto0.(The
optimalintegralvalueisdependentonthe
characteristicsoftheparticularspaceand
HVACsystem.)
(Advanced) Restart/Restore
RESTART/RESTORE
RESTART:
RESTORE FACTORY: NO
WARM START
Tochangeperformawarmstart,coldstart,orrestore
tofactorydefaults,press:
1. Up/Downtomoveamongentries.
2. Entertoselect.
SeeReseing the FlexStat on page 26formoreinfor-
mationaboutthisfunction.
(Advanced) Temp. Setpoint Limits
LIMITS
OCC MIN CLG:
OCC MAX HTG: 80° F
UNOCC MIN CLG: 66° F
UNOCC MAX HTG: 80° F
MIN SETPT DIFF: 2° F
66° F
Thismenupermitschangestotheminimumand
maximumalloweduser/operatorsetpointvalues.
NOTE: ForMinimumSetpointDierential,seethe
diagram.



































FlexStat 19 Operation Guide, Rev. M
Menu Items Access Levels
Menus User Operator Administrator
Home Screen * = Selectable, Default is User
Setpoint Adjust (Up/Down) 4*4*4*
System Mode (Auto/Heat/Cool/Off) 4*4*4*
Occupancy Override (On/Off) 4*4*4*
Fan Modes (Auto/On/Off) 4*4*4*
Main Menu* (Default is User)
About 4 4 4
Advanced 4 4
Alarm 4 4
Date/Time 4 4
Schedule 4 4
Setpoints 4 4
System 4 4
Trend Viewer 4 4 4
Advanced Menu
Application 4
Additional Setup 4
Control Basic Programs 4 4
Communication 4
Date/Time 4 4
Device 4
Inputs 4 4
Limits 4 4
Motion Sensor 4 4
Security 4
Trend Logs 4 4
Test 4 4
This chart shows conditions in which an administrator password is
set (is not 0000) and default password levels are used.
NOTE: Whenseingapassword,theUpbuon
increasesthealphanumericvalue(0
through9andthenAthroughZ).The
Downbuondecreasesthevalue.DONOT
FORGETTHEADMINPASSWORD!
Therequiredpasswordlevelisspeciedinthe
prompt.
Tolockthebuonsaercongurationiscomplete
(anddisablefurtherchanges),selectLockedUI
mode.See(Advanced) User Interface (UI) on page 21.
Foradditionalphysicalsecurityandprotection
fromvandalism,installtheFlexStatinsideathird-
partylockingthermostatguard/cover(butproper
airowmustbemaintained).
(Advanced) Security Levels and Passwords
SECURITY
ACCESS LEVELS
PASSWORDS
ACCESS LEVELS
SETPOINT ADJ:
MAIN MENU: ADMIN
SYSTEM MODE: OPER
OCC OVERRIDE: USER
FAN OCC/UNOCC: OPER
NONE PASSWORDS
USER:
OPERATOR:
ADMIN:
1 0 0 0
1 2 3 4
5 6 7 8
AccesstotheMainMenu,SetpointAdjust,and
System/Occupancy/Fanseingshaveadefault
passwordlevelofUser.Thislevelcanbechangedfor
eachfunctiontoNone,Operator,orAdministrator
throughtheAccessLevelsmenu.Passwordsareset
inthePasswordsmenu.
Anypersoncanviewthedisplaybutmightnotbe
abletochangeanyseingswithoutlogginginwith
oneofthethreelevelsofpasswords:
• None(Level“0”):Nopasswordisrequired
(everyonehasaccess).(Forexample,anyonecan
adjustasetpointwithAccessLevelNoneevenif
allotherfunctionsrequireapassword.)
• User(Level1):SeetheMenuItemsAccessLevels
chart.
• Operator(Level2):SeetheMenuItemsAccess
Levelschart.
• Administrator(Level3):Canaccessallmenus
andchangealleditablevalues.DONOT
FORGETTHISPASSWORD!
Changesinsecuritylevelsand/orpasswordstake
eectAFTERthecurrentAdministratorlog-inhas
timedout.Time-outoccurs60seconds(default)
AFTERthelastbuonpress!
NOTE: Desiredlengthofinactivitytime-outcan
bechangedintheUserInterfacemenu.See
(Advanced) User Interface (UI) on page 21.
NOTE: Seingapasswordto(thedefault)0000
eliminatesthepasswordpromptand
allowsfullaccessforthatlevel.Ifno
passwordissetforADMIN,nopassword
promptwilloccur.Ifanypasswordisset
forADMIN,themenuitemsaccessible
atthevariouslevelsareshowninthe
followingchart.

FlexStat 20 Operation Guide, Rev. M
(Advanced) Test
TEST
LCD/KEY TEST
Thetestmenumerelyteststhedisplay’spixelsand
keyfunctions.
(Advanced) Trend Logs
TREND LOGS
TREND 1:
TREND 2: TRUE
TREND 3: FALSE
TREND 4: FALSE
TREND 5: FALSE
TREND 6: FALSE
TREND 7: FALSE
TRUE
TREND #1
SPACE TEMPERATURE LOG
OBJECT REF: AI1
LOG ENABLE: TRUE
INTERVAL (MINS): 10
STOP W/FULL: FALSE
RESET COUNT: NO
COUNT: 256
TOTAL CNT: 613
VIEW LOG BUFFER
TL #1–SPACE TEMP
APR17 1:27PM, 71.4
APR17 2:27PM, 71.5
APR17 3:27PM, 71.6
APR17 4:27PM, 71.8
APR17 5:27PM, 76.3
APR17 6:27PM, 81.2
APR17 7:27PM, 82.3
TheFlexStatgeneratesoneormoredefaulttrend
logsthataredependentonoptionsandapplications:
• Spacetemperatureisalwaysthedefaulttrend
log#1.(BeforermwareR2.0.0.12,thismonitored
AI1,butlaterrmwaremonitorsAV40toallow
foraremotespacetemperaturesensorandaver-
age/highest/lowestreadingoptions.)
• IfAI2isconguredfordischargeairtempera-
ture,thiswillbecomedefaulttrendlog#2.See
Sensor Setup on page 9.
• ModelswithCO2sensorswillhavedefaulttrend
log#3.(TheonboardCO2sensorisAI10,the
optionalremoteCO2sensorisAI9,butthetrend
logmonitorsAV78,whichgivesthehighestofthe
tworeadings.)SeealsoDamper Setup on page
7,(Advanced) CO2 Sensor (and DCV) on page 11,
Setpoints on page 25,andDCV (Demand Control
Ventilation) on page 24.
Otheroptionsthatcanbeuser-conguredfortrend
logsincludethefollowing:
• ThehumiditysensorisAI5butismappedto
AV22fordisplaypurposes.
• WhenAI4isconguredforOAT,OATismapped
toAV23fordisplaypurposes.
• ThemotionsensorisBI6.However,BI6isac-
tiveonlywhenmotionisdetectedbythesensor.
Peoplesiingquietlyinanoce,forexample,
willnotactivatethesensor.Unlesstrendlogs
areconguredforimpracticallyshortintervals,
someorevenmostmotiondetectionswillnotbe
recorded.Motionsensoroccupancyoverrideis
BV24andstandbyisBV35—eitherofthesemay
bemorepracticaltouseasatrendlog.
SeetheFlexStatApplicationGuideandrelevant
FlexStatInstallationGuideforotherdesiredinput
andoutputobjectsinanapplication.
Tosetthedesiredobjecttotrack,press:
1. Up/Downtomoveamongentries.
2. Entertoselect.
NOTE: TheBACnetstandardforlogintervals
ishundredthsofseconds.Thesimplied
displayontheFlexStatconvertsthevalue
tominutes.However,BACstage™and
TotalControl®dodisplayhundredthsof
secondsbutindierentways.Fora“10”
(minute)intervalonaFlexStatdisplay,
TotalControlwouldshow“00:10:00.00”
(hours:minutes:seconds.hundredthsof
seconds)andBACstagewouldshow
“60000”(hundredthsofseconds)instead.
Thetrendlogbuermaybeviewedbyscrolling
downandselectingViewLogBuer.Thebuermay
alsobeviewedfromtheMainMenubyscrolling
downtotheTrend Viewer(seepage 26).