Onicon SYSTEM-30 Operating instructions

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone]
www.onicon.com • [email protected]
SYSTEM-30 BTU MEASUREMENT SYSTEM
Installation and Operation Guide
For Software Version 2.8B and Higher
0667-1 / 18335 09-12

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone] • [email protected]
System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 2
SAFETY INFORMATION
This meter was calibrated at the factory before shipment. To ensure correct use of the meter, please
read this manual thoroughly.
Regarding this Manual:
 • Thismanualshouldbepassedontotheenduser.
 • Beforeuse,readthismanualthoroughlytocomprehenditscontents.
 • Thecontentsofthismanualmaybechangedwithoutpriornotice.
 • Allrightsreserved.Nopartofthismanualmaybereproducedinanyformwithout
  ONICON’swrittenpermission.
 • ONICONmakesnowarrantyofanykindwithregardtothismaterial,including,butnot
limited to, implied warranties of merchantability and suitability for a particular purpose.
 • Allreasonableefforthasbeenmadetoensuretheaccuracyofthecontentsofthismanual.
  However,ifanyerrorsarefound,pleaseinformONICON.
 • ONICONassumesnoresponsibilitiesforthisproductexceptasstatedinthewarranty.
 • Ifthecustomeroranythirdpartyisharmedbytheuseofthisproduct,ONICONassumes
no responsibility for any such harm owing to any defects in the product which were not
predictable, or for any indirect damages.
Safety Precautions:
 Thefollowinggeneralsafetyprecautionsmustbeobservedduringallphasesofinstallation,
 operation,service,andrepairofthisproduct.Failuretocomplywiththeseprecautionsorwith
 specicWARNINGSgivenelsewhereinthismanualviolatessafetystandardsofdesign,
 manufacture,andintendeduseoftheproduct.ONICONIncorporatedassumesnoliabilityforthe
 customer’sfailuretocomplywiththeserequirements.Ifthisproductisusedinamannernot
 speciedinthismanual,theprotectionprovidedbythisproductmaybeimpaired.
The following symbols are used in this manual:
!
!
WARNING
Messagesidentiedas“Warning”containinformationregardingthepersonalsafetyofindividuals
involvedintheinstallation,operationorserviceofthisproduct.
CAUTION
Messagesidentiedas“Caution”containinformationregardingpotentialdamagetotheproductor
other ancillary products.
IMPORTANT NOTE
Messagesidentiedas“ImportantNote”containinformationcriticaltotheproperoperationofthe
product.
i

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone] • [email protected]
System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 3
TABLE OF CONTENTS
1.0 INTRODUCTION ...................................................................................................... 3
 1.1 PURPOSEOFTHISGUIDE ........................................................................... 3
 1.2 TYPICALSYSTEM-30BTUMEASUREMENTSYSTEM............................. 3
 1.3 STANDARDFEATURESANDSPECIFICATIONS........................................ 4
 1.4 WORKINGENVIRONMENT ......................................................................... 5
 1.5 WARRANTYANDSERIALNUMBER .......................................................... 5
2.0 UNPACKING .......................................................................................................... 6
 2.1 CHECKINGTHATYOUHAVERECEIVEDEVERYTHING .......................... 6
3.0 INSTALLATION........................................................................................................ 7
 3.1 SITESELECTION........................................................................................... 7
 3.2 MECHANICALINSTALLATION................................................................... 8
  3.2.1 MainUnitInstallation ...................................................................... 8
  3.2.2 ThermowellInstallation.................................................................. 9
  3.2.3 TemperatureSensorInstallation ..................................................... 9
 3.3 ElectricalInstallation................................................................................... 12
  3.3.1 Singlevs.DualModeOperation ................................................... 12
  3.3.2 ElectricalWiring ............................................................................. 15
  3.3.3 IsolatedAnalogOutput .................................................................. 16
4.0 DIAGNOSTICS&COMMISSIONING ..................................................................... 17
 4.1 DIAGNOSTICLIGHTS.................................................................................. 18
 4.2 COMMISSIONING........................................................................................ 19
APPENDIXA–DRAWINGS
A-1  TYPICALSYSTEM-30INSTALLATION
A-2/A-3 THERMOWELLINSTALLATION
A-4  WIRINGDIAGRAM
A-5  WIRINGDIAGRAMFORDINCONNECTOR
A-6  SIGNALCONNECTIONBOARD
A-7/A-9 USINGTHEDISPLAY
A-10  CONDITIONSOFSALE

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone] • [email protected]
System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 4

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone] • [email protected]
System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 5
SECTION 1.0: INTRODUCTION
ISOLATION VALVE
Normally Open ISOLATION VALVE
Normally Open
BYPASS VALVE
Normally Closed
20" 10"
CHILLED WATER
SUPPLY
Y Strainer Upstream
Of Flow Meter
CHILLED WATER
RETURN
CONTROL SYSTEM
BACnet MS/TP
NETWORK
24 VAC POWER
FAN COIL UNIT
OR
AIR HANDLING UNIT
RETURN TEMP
FLOW
DIAGNOSTIC
LED’S
1.1 PURPOSE OF THIS GUIDE
Thepurposeofthisguideistoprovideinstallationandcommissioningproceduresandbasic
operatingandservicinginstructionsfortheONICONSYSTEM-30BTUMEASUREMENT
SYSTEM.
1.2 TYPICAL SYSTEM-30 BTU MEASUREMENT SYSTEM
ONICON’SSystem-30isatrueheat(BTU)computer,whichacceptsdatafromseveralsensors,
performs a series of computations with that data, and transmits the results as an indication of the
amountofheat(BTU’s)beingtransferredorasatotalizedamount.
!
WARNING
Onlyqualiedservicepersonnelshouldattempttoinstallorservicethisproduct.Seriousinjury
may result from the improper installation or use of this product.

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone] • [email protected]
System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 6
1.3 STANDARD FEATURES AND SPECIFICATIONS
• SinglemodeBTUcalculations,ineithertheheatingorcoolingmode,aretotalizedand
reported.
• Two-pipedualmodeBTUcalculationsinboththeheatingmodeandthecoolingmodeare
totalizedandreportedseparately.
CALIBRATION
 Flowsensorandtemperaturesensorsareindividually
calibrated, followed by a complete system calibration.
 Fieldcommissioningisalsoavailable.
ACCURACY
 Differentialtemperatureaccuracy±0.15°Fovercalibrated
range
 Computingnon-linearitywithin±0.05%
 Flowsensoraccuracy:
  ±0.5%OFREADINGatcalibratedvelocity
  ±1%OFREADINGfrom3to30ft/s(10:1range)
  ±2%OFREADINGfrom0.4to20ft/s(50:1range)
TEMPERATURE SENSORS
 SolidstatesensorsarecustomcalibratedusingN.I.S.T.
traceable temperature standards.
PROGRAMMING
 Factoryprogrammedforeachspecicapplication
MEMORY
 NonvolatileEEPROMmemoryretainsallprogram
  parametersandtotalizedvaluesintheeventofpowerloss.
OUTPUT SIGNALS
 Isolatedsolidstatedrycontactsformode1andmode2
energy total
  Contactrating:100mA,50V
  Contactduration:0.5,1,2or6secselectable
OPTIONAL OUTPUT SIGNALS
One isolated analog output, factory selectable for ow rate,
   energyrateordelta-T
  (Availableas4-20mA,0-10Vor0-5Vsignal)
OR
  Serialconnectionfor:BACnetMS/TP,MODBUSRTU,
   JCIN2-Metasys,SiemensP1-Apogee,or
   LONWORKS®networks
OPTIONAL LOCAL DISPLAY:
 AlphanumericLCDdisplaystotalenergy,totalow,energy
rate, ow rate, supply temperature and return temperature
 Alpha:16characters,0.2”high
 Numeric:6digit,0.4”high
MAINTENANCE:
 ONICONrecommendsperiodicinspectionandrecalibration.
  Nootherperiodicmaintenanceisrequired.
TEMPERATURE RANGE:
 Liquidtemperaturerange:32°Fto200°F
 Ambienttemperaturerange:40°Fto120°F
MECHANICAL
 OVERALLDIMENSION:
  9.25”Lx5”Wx6.5”H
 TEMPERATURETHERMOWELL:
  Brassthermowell(½”sweator¼”NPT)
ELECTRICAL
 ThisequipmentisintendedforINSTALLATION
  CATEGORY(OVERVOLTAGECATEGORY)II
applications
 INPUTVOLTAGE: 24V±10%AC50/60Hzor
      24V±4DC
 INPUTCURRENT: 200mAmaximum
 TERMINALSCONNECTIONS:Use18-22ga.copper
  wire.Donotexceed4.5in-lb(0.5Nm)oftorque
when tightening.
 WIRING:
  CONDUIT:UsePVCjacketedcoppercablewitha
   wiregaugesuitableforthelengthofrunandrequired
   maximumcurrentcarryingcapacity.Theinstallation
must comply with all local, state and federal codes.
  PLENUMAREA:(withoutconduit)Useplenumrated
copper cable with a wire gauge suitable for the length
   ofrunandrequiredmaximumcurrentcarrying
capacity. The installation must comply with all local,
state and federal building codes.
Note:Specicationsaresubjecttochangewithoutnotice.

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 7
1.4 WORKING ENVIRONMENT
TheSYSTEM-30wasdesignedforinstallationanduseintypicalcommercialandresidential
environmentsthatarefreeofcorrosiveliquidsandfumes,directliquidexposure,heavy
condensation,andtemperatureextremesandvibrations.
Theoperatingambientairtemperaturerangeis40°Fto120°F.
Theelectricalpowershouldberelativelyclean,freeofhighfrequencynoise,largevoltage
transients, and protected from power surges and brown outs.
1.5 WARRANTY & SERIAL NUMBER
Warranty
 ONICON’s2-year“No-fault”warrantyreducesstart-upcostswithextendedcoveragethat
 includescoverageforincidentaldamageduringinstallation.Certainexclusionsapply.Seeour
complete warranty statement for details.
Serial Number
 TheserialnumberofyourSYSTEM-30islocatedonthesideoftheenclosure.Serialnumbers
 areuniqueidentiersthatyoushouldhaveavailablewhencontactingthefactoryfor
assistance regarding your system.

1500 North Belcher Road, Clearwater, FL 33765 • Tel [phone] • Fax [phone] • [email protected]
System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 8
SECTION 2.0: UNPACKING
TheSYSTEM-30generallyshipsinonepackageunlessoptionalhardwareorequipmentisordered.If
anyitemsaredamaged,notifytheshippingcompany(allproductsareshippedinsured)andONICON.
2.1 CHECKING THAT YOU HAVE RECEIVED EVERYTHING
• Standard Documentation
 EnclosedwitheachSYSTEM-30isacomprehensivedocumentationpackagethatincludesthe
following items:
TheSYSTEM-30BTUMEASUREMENTSYSTEMInstallationandOperationGuide
TheSystem-30CalibrationDataSheet
TypicalInstallationDrawing
WiringDiagram
PleasenotifyONICONimmediatelyifanyitemsaremissing.
• The Main Unit
 RemovetheSystem-30fromtheshippingcartonandinspectitforphysicaldamage.
• Temperature Sensors
One temperature sensor is built into the body of the meter and the other is connected to
 themainunitviaapermanentlyattachedcable.Inspectthefreesensorandcableforexternal
damage.
• Temperature Thermowell
 Astandardthermowellwithinstallationhardwareispackedwiththemainunit.
• Mounting Hardware
 TheSystem-30issuppliedwithtwotailpiecestofacilitateconnectiontothepipingsystem.
 Acompressionttingwithretainingnutmakesuponeendofeachtailpiece.Theotherend
 willeitherbeasweatttingforcopperorathreadednipplewithNPTthreads.

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 9
SECTION 3.0: INSTALLATION
TheSYSTEM-30BTUMEASUREMENTSYSTEMshouldbeinstalledbyexperiencedplumbersand
otherswithrelatedknowledgeandexperienceintheheating,cooling,anduidmeteringelds.
ONICONwillbehappytoassistwithtechnicalrecommendationsandtoprovideguidanceby
telephoneand/oremail.On-siteeldengineering,installation,and/orserviceisalsoavailableatan
additional cost.
The installer should use good trade practices and adhere to all state and local building or other
applicable codes.
3.1 SITE SELECTION
Carefulattentiontothesiteselectionforthesystemcomponentswillhelptheinstallerswiththe
initialinstallation,reducestart-upproblems,andmakefuturemaintenanceeasier.Forexample,
donotinstalltheSystem-30oritstemperaturesensorwhereitwillbedifcultforpersonnelto
perform periodic maintenance and calibration. When selecting a site for mounting the system
components,considerthecriteriaunderSection1.4,WORKINGENVIRONMENT,aswellasthe
following:
The Main Unit
 Choosethelocation(supplyorreturn)withthelongeststraight,unobstructedrun.Ideally,the
location chosen should allow for at least 20 diameters of unobstructed straight run upstream
 ofthemeterandatleast10diametersofunobstructedstraightrundownstream.Ifboththe
 supplyandreturnhaveadequatestraightrunconditions,locatethemeterinthesupply.
 Thelocationmustbeaccessibletofacilitateserviceandrecalibration.
The Temperature Sensor
The temperature sensor should be located in an accessible location. This will facilitate any
 on-siteservice.
Place the temperature sensor away from sources of electrical noise that might interfere with
the temperature sensor signal.
!
CAUTION
ONICONstronglyrecommendstheuseofavalvedbypassandstrainerinconjunctionwiththe
installationoftheSystem-30tofacilitateservicingandtoprotecttheturbineassemblyduring
start-up.

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 10
3.2 MECHANICAL INSTALLATION
3.2.1 Main Unit Installation
TYPICAL SYSTEM-30 INSTALLATION
ISOLATION VALVE
Normally Open ISOLATION VALVE
Normally Open
BYPASS VALVE
Normally Closed
20" 10"
CHILLED WATER
SUPPLY
Y Strainer Upstream
Of Flow Meter
CHILLED WATER
RETURN
CONTROL SYSTEM
BACnet MS/TP
NETWORK
24 VAC POWER
FAN COIL UNIT
OR
AIR HANDLING UNIT
RETURN TEMP
FLOW
DIAGNOSTIC
LED’S
Findaneasilyaccessiblelocationwherewireconnectionscanbemadeandthediagnostic
LED’scanbeviewedfromoorlevel.Thelocationwherethemainunitismountedshould
befreefromvibration.Cleantheexternalsurfaceofthepipeattheinstallationsiteso
thatitisfreeofdebris,foreignmatter,solids,leakinhibitors,andchemicallyaggressive
substances.Next,locatethetailpiecesthatwereshippedwiththemainunitandinstall
theseonthepipemakingcertainthatthecompressionnutsarecorrectlyoriented.
Whereverappropriate,usepipedopeonthreadedconnectionstoensurealeakfreeseal.
DONOTUSETEFLONTAPE.
Insertthemainunitbetweenthetwoopenendsofthepipeandsecureinplaceusingthe
compressionttings.MAKECERTAINTHATTHEFLOWDIRECTIONARROWONTHE
BODYOFTHEMAINUNITISPOINTINGINTHEDIRECTIONOFFLOW.
!
CAUTION
BeforeyouattempttousetheBTUmeasurementsystem,isolatethemainunit,openthebypass
andushtheentiresystemsothatitisfreeofux,solder,pipeandtubecuttingsandanyother
freemovingparticles.

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 11
3.2.2 Thermowell Installation
IMPORTANT NOTE
Itisimportantthatnodirtorotherforeignmaterialbeallowedintothethermowellasthiscould
affect the thermal response of the system.
i
Standard Thermowell
Themostcommoninstallationmethodsareshownbelow.ConsultONICONforspecial
applications.
3.2.3 Temperature Sensor Installation
ThetemperaturesensorisfactorymatchedandpermanentlyattachedtotheBTU
measurementsystem.SensorsfromdifferentBTUmeterscannotbeusedwithoutbeing
returned to the factory for recalibration.
Applyathincoatofthermalcompoundtothetemperaturesensor,andgentlyinsert
the temperature sensor all the way into the thermowell until it contacts the bottom of
thecavity.Gentlytightentheretainercap.DONOTOVERTIGHTEN.Thethermowell
completely seals the plumbing system without the retainer cap. The only purpose of the
capistokeepthesensorfromlosingcontactwiththebottomofthethermowellcavity.
IMPORTANT NOTE
Cablelengthisspeciedattimeoforder.Thisisthreewireshieldedplenumratedcable.Altering
thecablelengthmayaffectcalibration.DonotchangethecablelengthwithoutconsultingONICON.
i

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 12
THERMOWELL INSTALLATION IN THREADED PIPE TEES THERMOWELL
THERMOWELL INSTALLATION IN COPPER TEE

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 13
THERMOWELL INSTALLATION IN WELDED PIPE

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 14
3.3 ELECTRICAL INSTALLATION
Allusersuppliedconduitttings,junctionboxes,etc.aretobeinstalledasrequiredbylegal
codes.
IMPORTANT NOTE
TheSystem-30BTUMeasurementSystemisdesignedwithoneinternal(Temp1)andoneremote
(Temp2)temperaturesensor.Ifthemeterbodyislocatedinthesupplypipe,thentheinternal
temperature sensor will indicate the supply temperature, and the remote sensor will indicate the
returntemperature.Thisrelationshipwillreverseifthemeterbodyislocatedinthereturnpipe.
The location of the meter will also affect the logic used to determine mode 1 and mode 2 operations
for dual mode applications. Single mode energy measurements are absolute measurements and
arenoteffectedbypolarityoftheDeltat.
i
3.3.1 Single Mode (4 Pipe) Vs. Dual Mode (2 Pipe) Operation
ONICONSystem-30BTUMetersmaybeconguredforsingleordualmodeapplications.
Single and dual mode is a reference to the piping system and not the meter itself. Single
mode(4pipes)applicationsarethosethatalwayshavethesamerelationshipbetweenthe
supplyandreturnpipetemperatures.Indualmode(2pipes)applicationsthepolarityof
thetemperaturedifferential(delta-T)reverses,oftenonaseasonalbasis.
Itisoftendesirabletototalizetheamountofenergytransferredineachmodeinseparate
registers.Fortheseapplications,ONICONBtumetersmaybeconguredfordualmode
operation.Inthisconguration,themeterwillmeasureandtotalizeenergyinseparate
registersbasedonthepolarityofthedelta-T.
Thedrawingsandtablesonthenextpagesillustratetherelationshipbetweenmeter
location, temperature sensor and mode of operation.

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 15
Temperature Sensor/ Mode of Operation Relationship with Meter in Supply Line
Supply Temp Temperature1Sensor(InternalSensor)
Return Temp Temperature2Sensor(ExternalSensor)
Mode 1 Total Heating(SupplyTemp>ReturnTemp)
Mode 2 Total Cooling(SupplyTemp<ReturnTemp)
ISOLATION VALVE
Normally Open ISOLATION VALVE
Normally Open
BYPASS VALVE
Normally Closed
20" 10"
CHILLED WATER
SUPPLY
Y Strainer Upstream
Of Flow Meter
CHILLED WATER
RETURN
CONTROL SYSTEM
BACnet MS/TP
NETWORK
24 VAC POWER
FAN COIL UNIT
OR
AIR HANDLING UNIT
RETURN TEMP
FLOW
DIAGNOSTIC
LED’S

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 16
Temperature Sensor/ Mode of Operation Relationship with Meter in Return Line
Supply Temp Temperature2(ExternalSensor)
Return Temp Temperature1(InternalSensor)
Mode 1 Total Cooling(SupplyTemp<ReturnTemp)
Mode 2 Total Heating(SupplyTemp>ReturnTemp)

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 17
3.3.2 Electrical Wiring
ConnectallBTUmetersignaloutputstoterminalstripT1and/orT4(optional
communicationoutput)asshownbelow.
Thenconnectthe24VAC/DCinputpowertoterminalstripT1.ThestandardSYSTEM-30
isconguredfor24VAC60Hzoperationor24VDCoperation.Donotconnectthe24V
AC/DCsourceuntilallothersignalconnectionshavebeenmadeandveried.
ViewofSignalConnectionBoard
+
–
BTU CONTACT OUTPUT (SINGLE MODE or MODE 1)
BTU CONTACT OUTPUT (MODE 2 FOR DUAL MODE ONLY)
TB 1
} }
1 2 3 1 2 3 4 5 6 7 8
TB 4
}
24 V AC/DC POWER
+
–
}
ANALOG OUTPUT (Optional)
NETWORK INTERFACE (Optional)

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 18
3.3.3 Isolated Analog Output (Optional):
TheSystem-30maybeorderedfromthefactorywithanoptionalanalogoutput.This
outputisfactoryconguredtoprovidealinearoutputproportionaltoanyoneofthe
following operating parameters: ow rate, energy rate, internal temperature sensor,
externaltemperaturesensorordeltatemperature.Theformatofthisoutputmaybe
selectedtoprovidea4-20mA,0-10Voltor0-5Voltsignal.
Thisselectioniseldcongurableusingthejumperslocatedontheanalogoutputboard
asshownbelow.Changinganyofthedisplayedunitsormultiplierswillaffecttheanalog
output.IfanyunitormultipliervaluesarechangedattheSystem-30BTUMeter,the
analogoutputvaluewillalsobechanged.Ifyouareunsureoftheramicationsofany
changesyouarecontemplating,pleasecontactONICONforassistance.
4-20mA
0-5 Volt
0-10 Volt

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 19
SECTION 4.0: DIAGNOSTICS AND COMMISSIONING
4.1 DIAGNOSTICS
TheONICONSystem-30BTUMEASUREMENTSYSTEM
usesamicroprocessortocalculateenergy.Factory
programmedsettingsprovideenergytotaloutputsin
accordancewiththecustomer’sapplicationdata.An
optional isolated analog output for energy rate, ow
rateordelta-Tmayalsobeavailable.RefertotheBTU
meter calibration sheet for a complete listing of factory
settings. These settings cannot be changed in the eld.
ContactONICONifchangestothecalibrationarerequired.
TheSystem-30isequippedwithdiagnosticindicator
lights that conrm the operation of the microprocessor and
its input circuitry.
PleasecontactONICONifeitherofthediagnosticlights
indicateapotentialproblemwiththeoperationoftheBTU
measurement system.
4.1.1 Diagnostic Lights
Energy
LocatedontheendofmainunitoppositethecableconnectionisaredLEDlabeledBTU.
ThisLEDwillashasenergyistransferred.
Liquid Flow
LocatedontheendofmainunitoppositethecableconnectionisaredLEDlabeledFLOW.
ThisLEDwillashataratethatisproportionaltotheliquidowrate.AnunlitLED
indicates no ow signal.
2161 Logan St., Clearwater, Florida 33765 Tel [phone] Fax [phone]
SYSTEM-30 BTU MEASUREMENT SYSTEM CALIBRATION DATA
SPECIFIED OPERATING PARAMETERS
LIQUID FLOW RATE (MAX): GPM PIPE CONNECTION:
PIPE MATERIAL: FLOW METER FACTOR: PPG
LIQUID TYPE: % WATER % ETHYLENE GLYCOL % PROPYLENE GLYCOL
% OTHER SP. H.T. DENSITY
DELTA T MAX: ˚F/˚C HEAT FLOW (MAX): BTU/MIN
BTU METER
MODE: HEATING COOLING BOTH
OUTPUT SWITCH TYPE: SOLID STATE DRY CONTACT, NON-POLARIZED
OUTPUTS:
OUTPUT SCALING: 1 PULSE = BTU
OPTIONAL ISOLATED ANALOG OUTPUT TYPE:
ANALOG RATE FULL SCALE: 20mA OR 10 VOLTS =
TEMPERATURE SENSORS
INTERNAL SENSOR OFFSET: INTERNAL SENSOR SLOPE:
REMOTE SENSOR OFFSET: REMOTE SENSOR SLOPE:
CALIBRATED BY: DATE:
0330 5-1-02
BTU/lb˚Flbs/ft³
SERIAL NUMBER:

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System-30 BTU Measurement System Manual 09/12 - 0667-1 / 18335 Page 20
4.2 COMMISSIONING
Please read all installation instructions carefully before proceeding. Wiring diagrams are located
intheappendix.Aworksheetforcheckingoffthesestepsandrecordingmeasuredvaluesis
located on the following page.
1. Conrmmainunitlocationand
adequatestraightpiperunto
achievedesiredresults.
Isthemainunitlocatedinthecorrectlocationasrequiredbythe
plans?
Compareactualstraightpipeupstreamanddownstreamofthemain
unit location to the recommended distances identied in this manual.
Note:Thismanualisveryconservativeandassumestheworst-case
pipeobstructions.ContactONICONtodiscussspecicsofyour
application.
Inordertoproceedwiththefollowingsteps,theSystem-30mustbeoperatingandconnectedtothecontrol
system.Theremustalsobeowinpipes.Flowsignalreadingsshouldbetakenwhileholdingtheowrate
constantifpossible;otherwise,takethevariousoutputreadingsasquicklyaspossible.
2. Conrmcorrectsupplyvoltage. VerifythatthecorrectsupplyvoltageisavailableattheSystem-30
signalcableconnections.TheSystem-30BTUMEASUREMENT
SYSTEMoperatesfrom24VAC±4volts.
3. WiththeHVACsystemactive,
verifythatthediagnosticLED’s
forFLOWandBTUareboth
ashing.
TheLED’sarelocatedontheexteriorofthemainunitontheend
opposite from the cables.
Thefollowingstepsrequireamulti-meterwiththeabilitytomeasureDCvoltageaswellasDCfrequencyin
hertz.Removethesixscrewsthatsecurethecovertothemainunitandcarefullyliftthecoveroff.
4. Checktemperaturereadingsfor
T1, T2 and the differential
temperature.
Setmulti-meterfor2to4voltrange.
T1:  MeasureDCvoltsbetweenterminals2(+)and3(-).
T2:  MeasureDCvoltsbetweenterminals2(+)and3(-).
DeltaT: MeasureDCvoltsbetweenterminals2and2.
Therelationshipbetweenvoltageandtemperatureis10mV/degreeF.
Multiplythereadinginvoltsby100toobtaindegreesF.Comparethe
calculatedtemperaturestoexpectedvalues.
5. Checkowsignal. Setmulti-meterforDChertz,voltagerange>15volts.Thetestpoints
forowarelocatednexttotheresetbutton.
GPM=FrequencyinHzX60
 MeterFactorinppg(refertocalibrationtagformeterfactor)
Comparethecalculatedowratetoexpectedvalues.
6. CheckEnergyTotalOutput(BTU
OutputMode1and/orMode2).
Setmulti-meterforDCvolts,voltagerange>15volts.
Mode1: MeasureDCvoltsbetweenterminals3and4
Mode2: MeasureDCvoltsbetweenterminals5and6
Conrmthatthevoltagechangesstate(lowtohighorhightolow)
each time the controls system register records a new energy total.
Endofstandardcommissioning.PleasecontactONICONat[phone]withanyquestions.