Specifications

STATE-OF-THE-ART CONTROL SYSTEM SUPPORTS EFFICIENT BOILER PLANT OPERATION!
TheC-MOREAERCOwithBoilerSequencingisaexiblecontrollerdesignedtomaximizeenergysavingsin
modularboilerplants.TheBSTcanstageandcoordinatetheoperationsofupto8boilersandisuniquelydesigned
to maximize uptime reliability and the operating efciency of condensing equipment capable of unmatched
modulation.Forboilerplantsgreaterthan8boilers,theAERCOControlSystem(ACS)panelisrequired.
Abletoregulateoverallplantoutputwithpreciseaccuracy,aboilerplantwith±4°Fheadertemperaturevariationis
assuredundernormalloadconditions.Itofferssequentialorparalleloperationexibility,anduserprogrammable
modesofoperationthatcanbechangedintheeld.TheC-MOREautomaticallyrotatestheleadunittohelp
equalizeboilerruntimeornumberofcycles.
FULLY COMPATIBLE WITH BAS OR EMS SYSTEMS VIA MODBUS OPEN PROTOCOL
Forfacilitiesthathavetakenabuilding-wideapproachtoenergyefciency,theC-MOREsupportseasyintegration
withBuildingAutomationSoftware(BAS)orEnergyManagementSoftware(EMS)programsviaModbusprotocol
andRS-485interface.Astandards-basedopenprotocolusedthroughoutthebuildingscontrolsmarket,Modbus
integration will enable facility managers to monitor all operations from any building control platform. BAS or
EMScanpoll20SystemOperatingParameters,and18unitOperatingParametersperBoilerthroughasingle
connection,including:(forgreaterdetailconsultAERCOModbusCommunicationsManualGF-114).
CongurationOptions TypicalApplications
Indoor/Outdoor Reset
AchangeintheoutsideairconditionresultsinaProcess
Applicationproportionatechangeinheadertemperature–a
functionoftheadjustableresetratio(0.3–3.0).
Indoor/Outdoor Reset Hydronic Heating
Process Application
Constant Setpoint
Deliversxedsupplywatertemperatureatsetpointsof50°F-
220°F(dependentuponboilermaximumtemperaturelimit).
Water Source Heat Pump
Domestic Water Generation
Supplemental Heat Recovery Equipment
Swimming Pool Heating
4-20mA Signal
Headertemperaturerespondslinearlytoanexternal4-20mA
controlsignal.
Computer Controlled Building Management
Industrial Process
Greenhouse Application
Network Communications
EnablesEMSorBASsystemtodriveboilerplantsettingfor
headersetpointtemperatureviaModbusconnectiontoBST.
AlsoprovidescommunicationlinkbetweentheboilerandtheBST
toallowdirectcommunication.ThisenablestheEMS/BASto
queryandcapturefaultsofBSTand20BSTSystemoperating
parametersaswellas18operatingparametersofeachindividual
boiler.
Computer Controlled Building Management
EMS Data Logging & Trend Analysis
NOTE:SupplyHeaderTemperatureSensorIsSoldSeparately(SeeOnBoardBSTO&M)
BST System Parameters
• CmoreBSTmode
• BSTsetpoint
• BSTsetbacksetpoint
• BSTsetbackstart
• BSTsetbackend
• BSTautomaster
• BSTUnitoutlettemp
• BSTnumunitsenabled
• BSTunitsfaulted
• MasterUnitAddress
• BSTheadertemp
• BSToutdoortemp
• BSTrerateoutput
• BSTUnitIgnited
• BSTActiveSetpoint
• Nextturnonrerate
• BSTsphighlimit
• BSTsplowlimit
• BSTtemphighlimit
• BSTsetpointmode
Boiler Parameters
• Commaddr
• UnitStatus
• Faultstatus
• Outlettemp
• Ffwdtemp
• Inlettemp
• Exhausttemp
• Airtemp
• Flamestrength
• Fireratein
• Firerateout
• Unittype
• Unitsize
• BoilerIsolationValveState
• Networkremotesetpoint
• Runcycles
• Runhours
• O2Level