Honeywell W7752D specifications Appendix a Using An LNS tool to Commission a Fan Coil Unit

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EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

 

 

PID

30

 

Commissioning

30

 

ID Number

30

 

Step 7. Troubleshooting

30

 

Troubleshooting Excel 10 FCU Controllers and Wall Modules

30

 

Alarms

30

 

Broadcasting the Service Message

32

 

Manual Mode

32

Appendix A: Using An LNS tool to Commission a Fan Coil Unit

33

 

Temperature Sensor Calibration

33

Appendix B: Configuring for Master/Slave Operation

34

 

Output Configuration Options

34

 

Input Configuration Options

34

 

Equipment Control Options

34

 

Zone Control Options

34

 

Network Variable Binding

34

Appendix C: LON Interface

35

Revision History

 

page no.

change

 

13

Information on configuration of actuator runtime and on valve synchronization has been added

 

EN2B-0285GE51 R0909

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Contents Excel Appendix C LON Interface Revision History Appendix a Using An LNS tool to Commission a Fan Coil UnitAppendix B Configuring for Master/Slave Operation Description of Devices Typical system overviewApplicable Literature Products CoveredOrganization of Manual Product NamesControl Application Control ProvidedSetpoint Limits SetpointsSetpoint Knob Setpoint from NetworkZEB Energy-Saving Features BypassOccupancy Status Safety Features Operating ModesExcel 10 W7754 FCU Controllers ConstructionExcel 10 W7752 FCU Controllers Electrical Shock Hazard180 Controller Performance Specifications Fan Type ConfigurationsGeneral Type of Heating and Cooling Equipment Reheat Output Digital InputCommon Temperature Control Master/Slave Controllers Excel 10 Wall Module OptionsAbbreviations and Definitions Determine Other Bus Devices Required OverviewPlan the System Step No DescriptionLay Out Communications and Power Wiring Lonworks LayoutGeneral Considerations Prepare Wiring DiagramsPower Wiring Vendor wire type WiringPower PlenumLOW 230 ONW Orks Termination XAL-TermExcel 10 Sensors Order EquipmentExcel 10 Wall Modules Echelon-Based Components and PartsConfigure Controllers Using Plug-InsOutput Input Equipment Control FanMiscellaneous Switching LevelsZone Options Alarms TroubleshootingTroubleshooting Excel 10 FCU Controllers and Wall Modules CommissioningFCU Alarms ReturntonormalBroadcasting the Service Message Manual ModeTemperature Sensor Calibration ProcedureZone Control Options Output Configuration OptionsInput Configuration Options Network Variable BindingAppendix C LON Interface Page NV name Continuous Automode To 100% For the reheat output EN2B-0285GE51 R0909 Ntcnonlinearized NoswitchByte Ntcnonlinearize Byte FivepositionDioccupiedsensor Byte DinotusedDiwindowclosed DiairflowTwostage Byte FloatingOnestage ThreestageRelnotused Byte ReheatFreeuse Fourpipe TwopipeUword Bypassunoccupie OffsetAbsolutemiddle NobuttonTable C3. Input Variables for Excel 10 FCU Controllers Suppressalarms Modeenable UnsuppressalarmsModedisable OcnulInvalid Rqnormal Rqupdatestatus Rqupdatealarm RqreportmaskOFF NUL ON1OFF2 Byte NormalhcmodeOFF1OFF2 OFF1ON2Byte Normalfanmode Ledoff LedonOpen NowindowClosed Table C4. Output Variables for Excel 10 FCU Controllers Rtncomfailsetptoffs RtncomfailtempresetAlarmnotifydisabled RtncomfailschedoccOcbypass Ocstandby Almcomfailmanheat Almcomfailmancool AlmhwswmismatchOFF Notassigned Fieldhwoverride OFF Nofanspeedsw UbyteFieldeffectocc FieldschedoccOcunoccupied Ocbypass Ocstandby CtlfanswitchoffCtldisabled Ocunoccupied Ocbypass Ocstandby OcnulFanruns Not Actice ActiveFanoffafteroncmd ExternalnotacticeInvalid Uword StoffSton Pressed OFF NoreheatNotpressed Contactopen Contactclosed UwordStlow Stmed Sthigh Invalid Byte InitialNoalarm EnabledDisabled InalarmAlarm Suppressalarms Alarmnotifydisabled Open NowindowBugver Nodetype Table C5. Unused Variables for Excel 10 FCU Controllers WordAutomation 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.
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