Honeywell W7752D specifications Table C5. Unused Variables for Excel 10 FCU Controllers, Word

Page 67

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

NV name

nciApplVer

nciApplVer

nciCntrlSettings

nciFcuConfig

nciWallMod

nciWallMod

nvoFcuStatus

nvoFcuStatus

nvoFcuStatusP

nvoFcuStatusP

nvoSensor

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoStatus

nvoUnitStatus

field name

not_used1 not_used2 reserve not_used spare_field[0] spare_field[1] not_used spare_field[0] not_used spare_field[0] not_used out_of_limits open_circuit out_of_service mechanical_fault feedback_failure over_range under_range electrical_fault unable_to_measure fail_self_test self_test_in_progress Lock ed_out manual_control in_override reserved1 reserved2 econ_output

Table C5. Unused Variables for Excel 10 FCU Controllers

engineering units:

digital

 

 

state

default

comments

English (metric) or states

or

plus range

 

 

value

 

 

 

 

 

UBYTE

 

 

Reserved for future use.

 

 

 

 

UBYTE

 

 

Reserved for future use.

 

 

 

 

7 bits

 

 

Reserved for future use.

 

 

 

 

4 bits

 

 

Reserved for future use.

 

 

 

 

UBYTE

 

 

Reserved for future use.

 

 

 

 

UBYTE

 

 

Reserved for future use.

 

 

 

 

3 bits

 

 

Not used.

 

 

 

 

WORD

 

 

Not used.

 

 

 

 

Same as nvoFcuStatus

 

 

Not used.

 

 

 

 

Same as nvoFcuStatus

 

 

Not used

 

 

 

 

6 bits

 

 

Reserved for future use.

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

Bit

 

 

Not supported

 

 

 

 

SNVT_lev_percent

 

 

Not supported

 

 

 

 

65

EN2B-0285GE51 R0909

Image 67
Contents Excel Appendix B Configuring for Master/Slave Operation Appendix a Using An LNS tool to Commission a Fan Coil UnitAppendix C LON Interface Revision History Typical system overview Description of DevicesProduct Names Products CoveredOrganization of Manual Applicable LiteratureControl Provided Control ApplicationSetpoint from Network SetpointsSetpoint Knob Setpoint LimitsZEB Bypass Energy-Saving FeaturesOccupancy Status Operating Modes Safety FeaturesElectrical Shock Hazard ConstructionExcel 10 W7752 FCU Controllers Excel 10 W7754 FCU Controllers180 Controller Performance Specifications General ConfigurationsFan Type Type of Heating and Cooling Equipment Digital Input Reheat OutputExcel 10 Wall Module Options Common Temperature Control Master/Slave ControllersAbbreviations and Definitions Step No Description OverviewPlan the System Determine Other Bus Devices RequiredLonworks Layout Lay Out Communications and Power WiringPower Wiring Prepare Wiring DiagramsGeneral Considerations Plenum WiringPower Vendor wire typeLOW 230 XAL-Term ONW Orks TerminationEchelon-Based Components and Parts Order EquipmentExcel 10 Wall Modules Excel 10 SensorsUsing Plug-Ins Configure ControllersOutput Input Fan Equipment ControlZone Options Switching LevelsMiscellaneous Commissioning TroubleshootingTroubleshooting Excel 10 FCU Controllers and Wall Modules AlarmsReturntonormal FCU AlarmsManual Mode Broadcasting the Service MessageProcedure Temperature Sensor CalibrationNetwork Variable Binding Output Configuration OptionsInput Configuration Options Zone Control OptionsAppendix C LON Interface Page NV name Continuous Automode To 100% For the reheat output EN2B-0285GE51 R0909 Byte Fiveposition NoswitchByte Ntcnonlinearize NtcnonlinearizedDiairflow Byte DinotusedDiwindowclosed DioccupiedsensorThreestage Byte FloatingOnestage TwostageFreeuse Byte ReheatRelnotused Twopipe FourpipeUword Nobutton OffsetAbsolutemiddle BypassunoccupieTable C3. Input Variables for Excel 10 FCU Controllers Ocnul Modeenable UnsuppressalarmsModedisable SuppressalarmsOFF NUL Rqnormal Rqupdatestatus Rqupdatealarm RqreportmaskInvalid OFF1ON2 Byte NormalhcmodeOFF1OFF2 ON1OFF2Ledoff Ledon Byte NormalfanmodeClosed NowindowOpen Table C4. Output Variables for Excel 10 FCU Controllers Rtncomfailschedocc RtncomfailtempresetAlarmnotifydisabled RtncomfailsetptoffsOFF Notassigned Almcomfailmanheat Almcomfailmancool AlmhwswmismatchOcbypass Ocstandby Fieldschedocc OFF Nofanspeedsw UbyteFieldeffectocc FieldhwoverrideOcunoccupied Ocbypass Ocstandby Ocnul CtlfanswitchoffCtldisabled Ocunoccupied Ocbypass OcstandbyExternalnotactice Not Actice ActiveFanoffafteroncmd FanrunsSton StoffInvalid Uword Contactopen Contactclosed Uword OFF NoreheatNotpressed PressedInvalid Byte Initial Stlow Stmed SthighInalarm EnabledDisabled NoalarmOpen Nowindow Alarm Suppressalarms AlarmnotifydisabledBugver Nodetype Word Table C5. Unused Variables for Excel 10 FCU ControllersAutomation and Control Solutions

W7752D specifications

The Honeywell W7752D is a versatile and advanced electronic gas combination control designed primarily for use in commercial heating systems. This product stands out for its ability to manage both gas ignition and safety functions, which are critical for maintaining the efficiency and safety of heating appliances. Its robust construction and advanced features make it a popular choice for HVAC professionals and service technicians.

One of the main features of the W7752D is its integration of multiple functions in a single device. It serves as both an automatic gas ignition control and a safety shut-off valve, which simplifies installation and reduces the need for additional components. This integrated design not only enhances reliability but also streamlines maintenance procedures.

Another notable technology utilized in the W7752D is its microprocessor-based control logic. This advanced technology allows for precise management of the ignition sequence, improving the overall efficiency of the heating system. The microprocessor enables the control to adapt to varying operating conditions, ensuring optimal performance even under changing demands.

The W7752D is equipped with features that enhance user-interface and diagnostics capabilities. It includes LED indicators that provide clear information about the operational status and any potential issues. This diagnostics capability facilitates easier troubleshooting, saving time and reducing the likelihood of extended downtimes.

Safety is a primary concern in gas appliances, and the W7752D addresses this with built-in safety mechanisms, including flame detection technologies. These features ensure that the appliance operates safely, automatically shutting down in case of any irregularities during operation. This emphasis on safety not only protects property but also provides peace of mind for users.

In terms of compatibility, the Honeywell W7752D is designed to work with a wide range of gas heating appliances. Its flexibility allows it to be used in various applications, making it suitable for different types of commercial environments. Additionally, the control complies with relevant safety and performance standards, ensuring reliable operation.

In summary, the Honeywell W7752D combines advanced technology with essential safety features, making it a top choice for commercial heating applications. Its integrated design, microprocessor-based control, user-friendly diagnostics, and robust safety mechanisms make it an essential component for efficient and safe gas heating systems. Whether it is for new installations or replacements, the W7752D provides HVAC professionals with the reliability and ease of use they demand.