Honeywell W7750A specifications Off

Page 107

 

 

 

 

Table 27. Direct Access And Special Points. (Continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Digital Stateor Value ofState

 

E

 

 

DirectAccess

 

E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic

 

User Address

NvName

Field Name

(Metric) or States plus Range

Default

-Vision (M, P,S)

Share

Map

Test

Comments

 

 

 

 

Engineering Units: English

 

 

 

 

 

 

 

 

 

TestHtClStg1

nviManValue

HeatCoolStage1

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, HeatCoolStage1 parameters turn the corresponding heat,

 

 

 

 

ON

1

 

 

 

 

 

 

or cool stage to on (1) or off (0). When HeatCoolMode is 0, then cooling loads are

 

 

 

 

 

 

 

 

 

 

 

 

controlled. When HeatCoolMode is 1 and the node is controlling conventional

 

 

 

 

 

 

 

 

 

 

 

 

equipment, then heating loads are controlled. When HeatCoolMode is 1 and the

 

 

 

 

 

 

 

 

 

 

 

 

node is controlling a heat pump, then cooling loads are controlled.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestHtClStg2

nviManValue

HeatCoolStage2

OFF

0

OFF

 

 

 

 

X

For HeatCoolStage2, refer to HeatCoolStage1.

 

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestHtClStg3

nviManValue

HeatCoolStage3

OFF

0

OFF

 

 

 

 

X

For HeatCoolStage3, refer to HeatCoolStage1.

 

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestHtClStg4

nviManValue

HeatCoolStage4

OFF

0

OFF

 

 

 

 

X

For HeatCoolStage4. refer to HeatCoolStage1.

 

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestAuxHt1

nviManValue

AuxHeatCoolStage1

OFF

0

OFF

 

 

 

 

X

AuxHeatCoolStage1—During MANUAL mode when the node is configured to

 

 

 

 

ON

1

 

 

 

 

 

 

control a heat pump and HeatCoolMode is 1, these parameters turn the

 

 

 

 

 

 

 

 

 

 

 

 

corresponding auxiliary heat stage on (1) or off (0).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestAuxHt2

nviManValue

AuxHeatCoolStage2

OFF

0

OFF

 

 

 

 

X

AuxHeatCoolStage2—During MANUAL mode when the node is configured to

 

 

 

 

ON

1

 

 

 

 

 

 

control a heat pump and HeatCoolMode is 1, these parameters turn the

107

 

 

 

 

 

 

 

 

 

 

 

corresponding auxiliary heat stage on (1) or off (0).

 

 

 

 

 

 

 

 

 

 

 

 

TestAuxHt3

nviManValue

AuxHeatCoolStage3

OFF

0

OFF

 

 

 

 

X

AuxHeatCoolStage3—During MANUAL mode when the node is configured to

 

 

 

 

ON

1

 

 

 

 

 

 

control a heat pump and HeatCoolMode is 1, these parameters turn the

 

 

 

 

 

 

 

 

 

 

 

 

corresponding auxiliary heat stage on (1) or off (0).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestAuxHt4

nviManValue

AuxHeatCoolStage4

OFF

0

OFF

 

 

 

 

X

AuxHeatCoolStage4—During MANUAL mode when the node is configured to

 

 

 

 

ON

1

 

 

 

 

 

 

control a heat pump and HeatCoolMode is 1, these parameters turn the

 

 

 

 

 

 

 

 

 

 

 

 

corresponding auxiliary heat stage on (1) or off (0).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestHtClMode

nviManValue

HeatCoolMode

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, HeatCoolMode determines whether heating or cooling

 

 

 

 

ON

1

 

 

 

 

 

 

outputs are turned on or off manually. When HeatCoolMode is 0, then cooling loads

 

 

 

 

 

 

 

 

 

 

 

 

are controlled. When HeatCoolMode is 1 and the node is controlling conventional

 

 

 

 

 

 

 

 

 

 

 

 

equipment, then heating loads are controlled. When HeatCoolMode is 1 and the

 

 

 

 

 

 

 

 

 

 

 

 

node is controlling a heat pump, then cooling loads are controlled by Heat / Cool

 

 

 

 

 

 

 

 

 

 

 

 

stages and heating stages are controlled by auxiliary heat stages. The

 

 

 

 

 

 

 

 

 

 

 

 

CHANGE_OVER_RELAY_OUT is affected by HeatCoolMode as configured in

 

 

 

 

 

 

 

 

 

 

 

 

Select.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestSaFan

nviManValue

FanOut

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, FanOut turns the fan on (1) or off (0).

 

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestAuxEcon

nviManValue

AuxEconOut

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, AuxEconOut turns the AUX_ECON_OUT on(1) or off(0).

 

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestOccStat

nviManValue

OccStatusOut

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, OccStatusOut turns the OCCUPANCY_STATUS_OUT to

 

 

 

 

ON

1

 

 

 

 

 

 

on(1 = not OC_UNOCCUPIED) or off (0).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestFree1

nviManValue

Free1Out

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, Free1Out turns the FREE1_OUT on(1) or off(0).

 

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestFree2

nviManValue

Free2Out

OFF

0

OFF

 

 

 

 

X

During MANUAL mode, Free2Out turns the FREE2_OUT on(1) or off(0).

74-2958— 1

 

 

 

ON

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Image 107
Contents Excel 72-2958 General Considerations W7750 ControllersAppendices 74-2958 List of Figures74-2958 Setpoint ramping parameters with ramp rate calculationList of Tables Typical system overview Description of DevicesControl Provided Control ApplicationForm No Title Products CoveredOrganization of Manual Applicable LiteratureAgency Listings Product NamesAbbreviations and Definitions Controllers ConstructionDI-1 W7750ASpecial Note for the W7750B,C Unit Performance SpecificationsPower Memory Capacity Specified Space Temperature Sensing RangeCPU Excel 10 W7750C Constant Volume AHU Controller Jack Lonmark Functional Profile DIN rail adaptersAnalog Inputs Inputs/OutputsDigital Outputs Digital InputsTriac Outputs on the W7750B,C Models only T7770C Wall ModulesDuct Sensor T7770A1006T7560A,B construction in in. mm General ConfigurationsConfiguration Options Summary For W7750A,B,C Controllers Modulating HEATING/COOLING Control Allowable Heating and Cooling Equipment ConfigurationsStaged HEATING/COOLING Control Heat Pump ControlPneumatic Actuator Control Economizer ControlMIXED-OUTPUT-TYPE Control Occupancy SensorWindow Open/Closed Digital Input Wall Module OptionsSmoke Control Modes of OperationDirty Filter Monitor Indoor Air Quality IAQ OverrideAssigned OFF ModeDisabled NotStep No Description OverviewPlan the System Determine Other Bus Devices RequiredLonworks Bus Layout Lay Out Communications and Power WiringExcel VAV Cvahu DeviceVA Information Obtained from Power WiringPower Budget Calculation Example Line Loss VA Ratings For Transformer Sizing Device DescriptionML6161A/B Damper Actuator, 35 lb-in R8242A Contactor ML7984B PWM Valve ActuatorNema class 2 transformer voltage output limits Power wiring details for one Excel 10 per TransformerGeneral Considerations Prepare Wiring DiagramsW7750 Controllers Terminal Terminal Number Description Factory Default Digital OutputsConstant Volume AHU Controller ML6161 Floating Actuator COM CCW Load Controller Power Heat Wall Economizer Damper PWM Actuator Power Signal W7750C Constant Pneumatic transducer to W7750B,C Shown, see triangle note Lonworks Bus Termination ModuleBrown Orange Order Equipment Lonworks Bus termination wiring optionsSensor with Bypass/LED and Lonworks Jack T7770 and T7560 Wall ModulesHoneywell Logo T7770D1018 Echelon Based Components and Parts Accessories SensorsAccessories Cabling Configure ControllersTroubleshooting Troubleshooting Excel 10 Controllers and Wall ModulesResistance Value ohms AlarmsExcel 10 Alarms W7750 Controller Status LED Broadcasting the Service MessageSensor Calibration Appendix A. Using E-Vision to Commission a W7750 ControllerSetting the Pid Parameters T7770C,D Wall Module Bypass Pushbutton and Override LEDAppendix B. Sequences of Operation Common Operations IAQ Option Room Temperature Sensor RmTempHeating EconomizerBypassTime Bypass Mode StatusOvrd and StatusLedRemote Setpoint RmtStptPot Setpoint Limits LoSetptLim and HiSetptLimBypass Occupied Continuous Unoccupied ModeOccupancy Mode and Manual Override Arbitration Not AssignedSetpoint Ramping Recovery Ramping for Heat Pump SystemsTime Clock OccTimeClock Schedule Master SchedMasterDemand Limit Control DLC Window Sensor StatusWndwSmoke Control FAN OperationDirty Filter Monitor Temperature Control OperationsSee for a diagram of a typical W7750 Unit Three Stages Staged Cooling ControlONE Stage TWO StagesOutdoor AIR Lockout of HEATING/COOLING Cascade Control of Modulating COOLING/HEATINGSeries 60 Modulating Control Pulse Width Modulating PWM ControlDischarge AIR LOW Limit Control Economizer ENABLE/DISABLE ControlIndoor AIR Quality IAQ Override Freeze StatStatus Points Address Input Output Points AddressControl Parameters Address Energy Management Points AddressMappable User Addresses and Table Number Enthalpy Relative TemperatureAir Flow CO2 ConcentrationEnumerated values are shown Application reset therefore, these points canPlaced in manual mode through a menu Valid states and the correspondingComments DefaultInput/Output Points NvName Field NameOccsensor Unuseddi NciIoSelect DigitalIn1Occsensor Shcedmasterin 255 NciIoSelect DigitalIn2COOLSTAGE4 COOLSTAGE1COOLSTAGE2 COOLSTAGE3Siinvalid SixtyfiftyTrue PPM SiinvalidFalse OccSensr NvoIO EconEnSw NvoIO EconEnableInPosition when poor indoor air quality is detected StatusDI3 NvoIO UbDigitalInNvName Default CommentsControl Parameters MaxClRamp, OdTempMaxClRamp, OdEnthalpyEnableMaxClRamp NciAux1SetPt UbMaxClRampS0 Degrees F/Hr MinClRamp NciAux1SetPt UbMinClRampS0 Degrees F/HrPPM GainHeatProp NciAux2SetPt UbKpHeatS2 Degrees F Degrees C Discharge air temperature cascade control loopGainCoolProp NciAux2SetPt UbKpCoolS2 Degrees F Degrees C Gain for the cooling control loopEnergy Management Points Network variable input fails Refer to WSHPEnable.valueNviFree1 Value Auxiliary functions. nviFree1 controls the FREE1OUT255 SrcTimeClkCt NvoTimeClk Value NviTimeClk ValueDestTimeClk NviTimeClk State Refer to nviTimeClk.valueStatus Points Bit Offset = InvalidSetPtAlrm Alarmbit1Bit Offset = SensorFailAlrm Bit Offset = FrostProtectAlrmUpdateallfields NoalarmNodedisabled SmokealarmCool DisabledmodeStartupwait HeatStatusManOcc NvoData1 NetManOcc StatusEconEn NvoData1 EconEnableAir flow switch is configured NciAux1SetPts.ubOdEnthalpyEnableS2For both heating or cooling HeatStgsOn NvoData1 HeatStagesOnAuxiliary heating stages are turned on CoolStgsOn NvoData1 CoolStagesOnMonitorSw NvoData1 MonSwitch Is 1, the algorithm controls as per the settings foundNciConfig.SmokeControl Controller mode is switched to FreezeprotectDischargetempfield BypasstimerfieldTempcontrolptfield SpacetempfieldUbinvalid Bit Offset = Temperature SetPtError NvoError Errorbit0 StatusError NvoError Errorbit0SpaceTempError NvoError Errorbit0Bit Offset = SpaceCO2Error NvoError Errorbit1 NvoError Errorbit1Bit Offset = RtnEnthalpyError NvoError Errorbit1 Are disabled as if the sensor was not configuredBit Offset = NvByPassError NvoError Errorbit3 Bit Offset = NvWindowError NvoError Errorbit2Bit Offset = NvDlcShedError NvoError Errorbit2 Bit Offset = NvTodEventError NvoError Errorbit3Calibration Points CfglocalCfgexternal CfgnulConfiguration Parameters False True UseRaTempCtl NciConfig DisMinHtTime NciConfig DisableHeatMinTimeDisMinClTime NciConfig DisableCoolMinTime CascCntrl NciConfig CascadeControlBypassonly Last NETOffset Absolutemiddle None NormalLonmark /Open System Points Hvacoff HvacautoHvacheat Hvacmrngwrmup Hvacprecool Hvaccool Hvacnightpurge HvacnulSrcRmTemp NvoSpaceTemp Degrees F 74-2958 100DestRmTemp NviSpaceTemp Degrees F SNVTtempp 14 toHvactest Hvacauto HvacnulHvacmrngwrmup Alarmnotifydisabled NvoStatus Unabletomeasure NvoStatus Electricalfault103 NvoStatus Inalarm 255 Not configured 74-2958Swon SrcEconEnCt NvoEcon Value On other nodes. If the economizer function is configured byCorresponding economizer function is not enabled because SrcEconEnable NvoEcon StateDirect Access And Special Points OFF Data Share Points Mapped points = number of mapped points per Excel Approximate Memory Size Estimating Procedure=using One-to-Many and not using points = including mapped points and others forSensor Use Sensor Resistance Versus Temperature Resistance OhmsResistance Sensors Sensor TypeAbove and Below Setpoint Resistance Ohms Offset Setpoint TemperatureDirect Setpoint Temperature T7770B,C 10K ohm setpoint potentiometer RelativeSensor Voltage Versus Humidity Relative Humidity Percentage Voltage/Current SensorsSensor Voltage Versus Humidity Humidity Percentage 113 74-2958 Sensor Current Versus Enthalpy volts Enthalpy mAMAmAmAmA AmA mA mA T7242 or equivalent74-2958 114 Sensor Voltage Versus Input Voltage To A/D Voltage to A/D 50.0.13 Sensor Voltage Vdc Versus Pressure InwPressure Inw kPa Sensor Voltage Vdc Inw