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OPERATION GUIDE for Flexstat

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OPERATION GUIDE for Flexstat FlexStat™ BACnet Programmable Thermostats Operation Guide Contents Overview ................................................................3 (Advanced) CO2 Sensor (and DCV) ................11 Applications and Installation ...................................3 CO2 Sensor Setup and Information ...........11 Operation (Basic) ....................................................4 DCV (Demand Control Ventilation) Setup .11 Navigation ..........................................................4 (Advanced) Communications (BACnet) ..........14 Room Temp. Setpoint Adjustment .......................4 (Advanced) Date/Time ...................................16 H/C, Fan, Occupancy, and Override ...................4 (Advanced) BACnet Device Properties ...........17 Main Menu and Settings ......................................4 (Advanced) Inputs ..........................................17 Display Options ..................................................5 (Advanced) Temp. Setpoint Limits ..................17 Configuration (Setup) ..............................................6 (Advanced) PID Loop Configuration ..............18 Main Menu Overview .........................................6 (Advanced) Restart/Restore ...........................18 About the FlexStat ...............................................6 (Advanced) Security Levels and Passwords .....18 Advanced Menu ..................................................7 (Advanced) Test ..............................................19 (Advanced) Application and Additional Setup ..7 (Advanced) Trend Logs ...................................20 Auxiliary Heat (Heat Pump Only) Setup ......7 (Advanced) User Interface (UI) ......................21 Damper (Economizer) Setup .......................7 Contrast ....................................................21 Fan Setup.....................................................8 Display Blanking .......................................21 Humidity Setup ...........................................8 Inactivity ...................................................21 Motion Sensor Setup ...................................8 Rotation Values ..........................................21 Optimum Start Setup ..................................9 Show Temperature Tenths (Decimals) ........21 Sensor Setup ................................................9 Show Time and Date ..................................21 Setback (OAT) Lockout Setup ....................10 Mode .........................................................21 Staging Setup .............................................10 Alarms ...............................................................23 Valve Setup ...............................................10 Date/Time .........................................................23 (Advanced) CB (Control Basic) Programs .......10 DCV (Demand Control Ventilation) ..................24 FlexStat Specifications, design, and operation1 are subject to change without notice. Operation Guide, Rev. U Schedules ..........................................................24 Input, Sensor, and Value Issues ..........................33 Setpoints ...........................................................25 CO2 Level Value Is Frozen or Is 0 ...................33 System Modes ...................................................25 CO2 and DCV Sequences Are Not Working ....33 Trend Viewer .....................................................26 CO2 Level Is “Too High” .................................34 Resetting the FlexStat ............................................26 DCV Menu Is Not Visible ...............................34 Types of Reset ....................................................26 “InActive” Inputs in the Sensor Setup Menu ..34 Warm and Cold Starts .......................................26 Input Values Are Outside the Expected Range 34 Restore Factory .................................................27 Humidification/Dehumidification Issues........34 Network Connection .............................................28 Motion/Occupancy Sensor Does Not Work ...34 MS/TP Network Communication ......................28 Temperature Reading Is Incorrect ..................35 IP/Ethernet Network Communication ...............28 Temperature Setpoint Is Not Maintained .......35 PC Data Port Connection ..................................28 Trend Log Not Working ..................................35 Maintenance .........................................................29 Time and/or Date Are Not Correct ................36 Programming (Custom) .........................................29 Output, Fan, and Relay Issues ...........................36 Accessories ...........................................................29 Analog Output Does Not Work ......................36 Damper/Economizer Does Not Work ............37 Firmware Upgrade ................................................29 Fan Does Not Run ..........................................37 Troubleshooting ....................................................30 Relay (External) Does Not Work ....................37 Alarm Issues ......................................................30 Relay (Internal) Does Not Work .....................37 Alarm, (False) Fan Fail ....................................30 Upgrading Firmware Issues ...............................38 Alarm, (False) Low Limit (Freeze Stat) ............30 Firmware Upgrade Failures ............................38 Alarm, (False) Space Temp. or Humidity ........30 FlexStat Malfunctions After Upgrade .............39 Back-Up Issues ..................................................30 Wiring Issues .....................................................40 Communication Issues ......................................30 Installation Wiring Considerations .................40 Data Port Communication Issues ...................30 Troubleshooting Wiring Problems ..................40 Ethernet/IP Network Communication Issues ..31 Support .................................................................41 MS/TP Network Communication Issues .........31 Cover, Display, and Reset Issues ........................31 Important Notices .................................................41 Cover Binds on Backplate ..............................31 Reference ..............................................................42 Display Is Blank (or Erratic) ...........................32 Acronyms and Abbreviations .............................42 Display Freezes (Buttons Have No Effect) ......32 Definitions of Terms ..........................................43 Display Keeps Resetting .................................32 Index .....................................................................44 “SYSTEM ERROR” Is Displayed ......................32 Custom Programming and Web Issues ...............33 Control Basic Programs Do Not Work ............33 NOTE: Menus shown in this document reflect Custom Web Graphics Do Not Work .............33 firmware version R2.1.0.18 or later. Actual context-sensitive screens are dependent on firmware version, FlexStat model, and options selected. FlexStat 2 Operation Guide, Rev. U Overview Applications and Installation The award-winning KMC FlexStat series of intelli- Communication with Other BACnet gent temperature/humidity/occupancy-sensing, wall- Network Devices and Remote Monitoring mounted, thermostat/controllers are native BACnet Advanced Application Controllers (B-AAC) for use in a BACnet system. The FlexStat simplifies net- worked zone control for common packaged HVAC Optional equipment, such as packaged rooftop units, fan coil Temperature Humidity, units, heat pumps, and other similar applications. In Sensing Motion, and CO addition, applications such as pressure dependent 2 Sensing VAV, terminal reheat, and medium-sized central Applications station air handling equipment applications may • AHU also be addressed through the on-board libraries of Up to 6 Ana- Up to 9 • FCU programs built into the devices. log Inputs (Total) • HPU for Other Analog • RTU The on-board library of programs permits rapid Sensors or and Relay configuration of a wide range of HVAC control ap- Contacts Outputs plications. The FlexStat series also provides the capability to customize the standard library of sequences using KMC software. This enables a local authorized KMC 24 Volts AC Quick (Temporary) Network Access installing contractor to adapt the standard library to Power Through Computer Data Port the unique site needs and application specific re- quirements of a particular project. 1. Wire the FlexStat’s backplate to the desired equipment and set the FlexStat’s end-of-line and Terminal Blocks on input pull-up resistor switches. Removable Backplate for Easy Wiring 2. Select the relevant application and options from the (Advanced) Application submenu of the Ad- vanced Menu and other appropriate menus. 3. Configure the FlexStat for the BACnet network. (See Network Connection on page 28.) For general mounting and connection details, in- cluding network wiring, EOL termination, power connections, input/output connections, pull-up EIA-485 Data Port for resistor switch settings, see the relevant model’s Quick Network Access Installation Guide. For extended information about wiring and sequences for specific applications, see the FlexStat Application Guide. NOTE: For specifications, see theBAC- 12xxxx/13xxxx/14xxxx Series FlexStat Data CAUTION Sheet (914-035-01). For specifications on the older BAC-10000 Series FlexStats (with To avoid damage from ground loops and other only three external inputs and no Ethernet
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