Honeywell W7752D Products Covered, Organization of Manual, Applicable Literature, Product Names

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Excel 10 W7752D,E,F,G,J FCU Controller Specification Data Excel 10 W7754K,L,M,N,P FCU Controller Specification Data Excel 10 W7752D,E,F,G,J FCU Controller Installation Instructions Excel 10 W7754K,L,M,N,P FCU Controller Installation Instructions Excel 10 FCU Controller LNS Plug-Ins User Guide
Excel 10 T7460 Wall Modules Specification Data
Excel 10 T7460 Wall Modules Installation Instructions Excel 10 T7560 Wall Modules Specification Data
Excel 10 T7560 Wall Modules Installation Instructions
Excel 10 FTT/LPT 209541B Termination Module Installation Instructions

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE

Products Covered

This System Engineering Guide describes how to apply the Excel 10 FCU Controllers and the accessories to typical FCU applications. The specific devices covered include:

•W7752D,E,F,G, and J FCU Controllers.

•W7754K,L,M,N, and P FCU Controllers.

•T7460 Wall Modules.

•T7560 Wall Modules.

Organization of Manual

The Introduction and Application Steps 1 through 5 provide the information needed to make accurate ordering decisions. Application Step 6 and the Appendices include configuration engineering that can be started using a LNS tool after the devices and accessories are ordered. Application Step 7 is troubleshooting. Information provided in support of the use of third-party LonWorks communication packages to configure FCU Controllers is found in the Appendices.

The organization of the manual assumes a project is being engineered from start to finish. If you are adding to, or changing an existing system, the Table of Contents can guide you to the relevant information.

Applicable Literature

The following is a list of documents that contains information related to the Excel 10 FCU Controller. Form No.

Title

EN0B-0376GE51

EN0B-0453GE51

EN1B-0250GE51

EN1B-0251GE51

EN2B-0285GE51

74-3083

95-7610

EN0B-0237GE51

EN1B-0146GE51

95-7554

Product Names

The W7752 Controller is available in five models:

•W7752D FCU Controller with 230 Vac power supply and with relay suitable for reheat applications.

•W7752E FCU Controller with 230 Vac power supply without reheat relay.

•W7752F FCU Controller with 115 Vac power supply with reheat relay suitable for reheat applications.

•W7752G FCU Controller with 115 Vac power supply without reheat relay.

•W7752J FCU Controller with 100 Vac power supply without reheat relay.

The W7754 Controller is available in five models:

•W7754K FCU Controller with 230 Vac power supply, one triac output, and one digital output suitable for attachment to a solid-state relay employed for low-voltage Pulse- Width Modulated (PWM) control in high-current electric reheat applications.

•W7754L FCU Controller with 24 Vac power supply and two triac outputs.

•W7754M FCU Controller with 230 Vac power supply.

•W7754N FCU Controller with 230 Vac power supply and two triac outputs.

•W7754P FCU Controller with 230 Vac power supply, four triac outputs, and an extra, fourth relay suitable for reheat applications.

The FCU Controllers can use any of the following Excel 10 wall modules:

•T7460A with temperature sensor.

•T7460B with temperature sensor and setpoint adjustment.

•T7460C with temperature sensor, setpoint adjustment, and bypass button and LED.

•T7460D with temperature sensor, setpoint adjustment and 5-position fan switch.

•T7460E with temperature sensor, setpoint adjustment, bypass button and LED, and 3-position fan switch.

•T7460F with temperature sensor, setpoint adjustment, bypass button and LED, and 5-position fan switch.

•T7560A with temperature sensor, unit enable button, setpoint adjustment, bypass button, LCD display and configurable fan override with up to five settings.

Other products:

•C7608A Return Air Sensor

Refer to the Table 15 (see Application Steps, Step 5. Order Equipment) for complete listing of all available part numbers.

EN2B-0285GE51 R0909

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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 Description of Devices Typical system overviewProducts Covered Organization of ManualApplicable Literature Product NamesControl Application Control ProvidedSetpoints Setpoint KnobSetpoint Limits Setpoint from NetworkZEB Energy-Saving Features BypassOccupancy Status Safety Features Operating ModesConstruction Excel 10 W7752 FCU ControllersExcel 10 W7754 FCU Controllers Electrical Shock Hazard180 Controller Performance Specifications General ConfigurationsFan Type Type of Heating and Cooling Equipment Reheat Output Digital InputCommon Temperature Control Master/Slave Controllers Excel 10 Wall Module OptionsAbbreviations and Definitions Overview Plan the SystemDetermine Other Bus Devices Required Step No DescriptionLay Out Communications and Power Wiring Lonworks LayoutPower Wiring Prepare Wiring DiagramsGeneral Considerations Wiring PowerVendor wire type PlenumLOW 230 ONW Orks Termination XAL-TermOrder Equipment Excel 10 Wall ModulesExcel 10 Sensors Echelon-Based Components and PartsConfigure Controllers Using Plug-InsOutput Input Equipment Control FanZone Options Switching LevelsMiscellaneous Troubleshooting Troubleshooting Excel 10 FCU Controllers and Wall ModulesAlarms CommissioningFCU Alarms ReturntonormalBroadcasting the Service Message Manual ModeTemperature Sensor Calibration ProcedureOutput Configuration Options Input Configuration OptionsZone Control Options Network Variable BindingAppendix C LON Interface Page NV name Continuous Automode To 100% For the reheat output EN2B-0285GE51 R0909 Noswitch Byte NtcnonlinearizeNtcnonlinearized Byte FivepositionByte Dinotused DiwindowclosedDioccupiedsensor DiairflowByte Floating OnestageTwostage ThreestageFreeuse Byte ReheatRelnotused Fourpipe TwopipeUword Offset AbsolutemiddleBypassunoccupie NobuttonTable C3. Input Variables for Excel 10 FCU Controllers Modeenable Unsuppressalarms ModedisableSuppressalarms OcnulOFF NUL Rqnormal Rqupdatestatus Rqupdatealarm RqreportmaskInvalid Byte Normalhcmode OFF1OFF2ON1OFF2 OFF1ON2Byte Normalfanmode Ledoff LedonClosed NowindowOpen Table C4. Output Variables for Excel 10 FCU Controllers Rtncomfailtempreset AlarmnotifydisabledRtncomfailsetptoffs RtncomfailschedoccOFF Notassigned Almcomfailmanheat Almcomfailmancool AlmhwswmismatchOcbypass Ocstandby OFF Nofanspeedsw Ubyte FieldeffectoccFieldhwoverride FieldschedoccCtlfanswitchoff CtldisabledOcunoccupied Ocbypass Ocstandby Ocunoccupied Ocbypass Ocstandby OcnulNot Actice Active FanoffafteroncmdFanruns ExternalnotacticeSton StoffInvalid Uword OFF Noreheat NotpressedPressed Contactopen Contactclosed UwordStlow Stmed Sthigh Invalid Byte InitialEnabled DisabledNoalarm 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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