KMC Controls BAC-19 FlexStat Series Application Manual
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KMC Controls BAC-19 FlexStat Series Application Manual

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CONTENTS
Settings ...................................................... 3
Initial Configuration .................................... 3
Accessing Settings .................................... 4
Advanced (Menu Options) ........................... 4
Communications (Menu Options) .................. 5
Schedule (Menu Options) ............................ 5
Set Clock (Menu Options) ............................ 5
Setpoints (Menu Options) ............................ 5
System (Menu Options) ............................... 6
Trends and Alarms ..................................... 7
Passwords ................................................... 7
Communication Options ................................. 7
Configuration via Display Menus ................... 7
Display Customization ................................... 9
Sensors and DCV Operation .....................11
2
Introduction .............................................11
Basic DCV Mode .......................................12
Standard DCV Mode ..................................12
Wiring Considerations ..................................13
General Wiring Considerations ....................13
Restarting the FlexStat .................................15
Types of Restart .......................................15
Warm and Cold Starts ................................15
BAC-19xxxx FlexStat Application Guide
BAC-19xxxx FlexStat
Troubleshooting ..........................................16
Alarm Issues ............................................16
Alarm, (False) Fan Status Fail ...................16
Alarms, Other ........................................16
Back-Up Issues ........................................16
Communication Issues ...............................16
Cover Binds on Backplate ........................17
Display Keeps Resetting ..........................17
Application Is Not Correct ........................18
1
Application Guide
AG200824A

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Summary of Contents for KMC Controls BAC-19 FlexStat Series

  • Page 1: Table Of Contents

    BAC-19xxxx FlexStat Application Guide CONTENTS Settings ............3 Initial Configuration ........3 Accessing Settings ........4 Configuration Navigation/Selection ....4 Advanced (Menu Options) ......4 Communications (Menu Options) ....5 Schedule (Menu Options) ......5 Set Clock (Menu Options) ......5 Setpoints (Menu Options) ......
  • Page 2 Configuration Issues .......18 Output, Fan, and Relay Issues .....21 Objects Are Missing .......18 Analog Output Does Not Work ....21 (Unknown) Password Is Required ....18 Damper/Economizer Does Not Work ..22 Software Not Compatible with the FlexStat .19 Fan Does Not Run ........22 Input, Sensor, and Value Issues ....19 Relay (External) Does Not Work ....22 Level Value Is Frozen or Is 0 ....19...

  • Page 3: Settings

    Press to Change Settings Settings (Press Space Temp) Active Cooling Setpoint Rotation Values Active Heating Setpoint Fan Auto or (Constant) On Units (°F or C) Occupancy Override Heat/Cool/Auto/Off Mode Time and Date Motion Sensor (Not a Button) (Default Screen Configuration Shown) SETTINGS NOTE: Software is required for fully configuring alarms and trends, adding custom...

  • Page 4: Accessing Settings

    2. Configure the (BACnet MS/TP or Ethernet) defaults. Use Restore APP or software communications settings. See Communica- to verify or change applications. tions (Menu Options) on page • Password 1 = Set password Level 1 (for 3. Configure the system settings. See System Active Heating and Cooling Setpoints).

  • Page 5: Communications (Menu Options)

    Schedule (Menu Options) take effect. After restarting, most settings will change back to their defaults. NOTE: If no schedule is set, the FlexStat will NOTE: For customizing the display, see remain in continuous occupied state as Display Customization on page a default.

  • Page 6: System (Menu Options)

    • Unoccupied Heating = Set the Unoccupied • Equipment Delay = Set the Equipment Delay Heating setpoint time (minutes). • Min Cooling Setpoint = Set the Minimum • Stage Delay = Set the Stage Delay time Cooling setpoint. (minutes). • Max Heating Setpoint = Set the Maximum •...

  • Page 7: Trends And Alarms

    Start learns as days pass the optimal times to COMMUNICATION OPTIONS begin and end occupied mode and adjusts the schedule times accordingly. Configuration via Display Menus • DCV Mode = Select None, Basic, or Standard NOTE: FlexStat communications can be set DCV mode.

  • Page 8: Ms/Tp Configuration Via Software

    E. Select Ethernet and enter the necessary MS/TP Configuration via Software Port ID, Network Number, and NIC. For MS/TP models to communicate with KMC F. Click OK and OK. software, a router (e.g., BAC-5051E) is required. See the software and router product information NOTE: Port ID and Network Numbers cannot for more details.

  • Page 9: Display Customization

    DISPLAY CUSTOMIZATION KMC software allows more complete customiza- tion in the Display Object. (See the BAC-190000 The FlexStat menu allows basic display customi- Series FlexStats data sheet for the current soft- zation (e.g.,color theme, brightness, contrast). See ware packages and versions that support the Advanced (Menu Options) on page FlexStat.) See the software Help system for more information.
  • Page 10 NOTE: One setpoint can be disabled if the FlexStat Setpoint Options is used for only cooling or only heating. Setpoints Tab System Configuration Options Setpoint Configuration Options Advanced Tab NOTE: If disabled, system Enable/Disable System or communication and Communications Menus on the Display options can then only be changed in software.

  • Page 11: Co Sensors And Dcv Operation

    SENSORS AND DCV OPERATION with an outside air damper. See the illustrations and descriptions of Basic and Standard DCV op- tions and operations. Introduction NOTE: High CO measurements may BAC-195xxx and BAC-193xxx model FlexStats indicate high levels of other airborne include CO sensors for DCV (Demand Control containments.

  • Page 12: Basic Dcv Mode

    Basic DCV Mode NOTE: A modulating OAD (Outside Air Damper) is required for DCV. An Basic DCV mode is On/Off and aims to optimize OAD is used by both DCV mode and IAQ (Indoor Air Quality). It maximizes the supply economizer mode.

  • Page 13: Wiring Considerations

    WIRING CONSIDERATIONS NOTE: Standard DCV mode complies with 2019 California Title 24 Part 6 120.1(c)4. To comply with Title 24: General Wiring Considerations • If there is an outside air CO sensor, CAUTION then the OAD begins to modulate The BAC-19xxxx models are open starting at the baseline CO NOT compatible with the level plus 200 ppm setpoint to the...

  • Page 14: Ethernet Network Wiring Considerations

    • Use external junction boxes above the ceiling a faster BAC-5051E router with an Ethernet or in another convenient location as needed network. For each network segment, connect to make connections that run to the FlexStat’s the shields to a good earth ground at only junction box.

  • Page 15: Restarting The Flexstat

    RESTARTING THE FLEXSTAT • Returns all object values to their relinquished defaults (until they are updated by the FlexStat’s programs). Types of Restart • Restarts the controller’s Control Basic If the FlexStat is not operating correctly, restart programs. (reinitialize or reset) it. Any restart interrupts nor- mal operation, and three types of restart exist: •...

  • Page 16: Troubleshooting

    Communication Issues Application Index drop-down menu, click Save Changes, right-click the FlexStat in the Network Manager, select Reinitialize Device..Restore (MS/TP) Data Port Communication Issues to the original application in the same manner. NOTE: For Ethernet-enabled models, the EIA- NOTE: After the application has been changed, 485 data port is not supported.

  • Page 17: Cover, Display, And Reset Issues

    • See the MS/TP Troubleshooting Using binding, pull off the cover and examine a Multimeter - Bifurcation video and pins and terminal socket connectors. downloadable troubleshooting guide. Display Is Blank, Erratic, or Frozen • If the display comes on when an area is Cover, Display, and Reset Issues pushed, Screen Blanking is enabled.

  • Page 18: Configuration And Programming Issues

    Make a backup before modifying any built-in programs! NOTE: Customized programs are the Configuration and Programming Issues responsibility of the user. KMC Controls does not provide support for such NOTE: Use the relevant KMC software or app programs. to perform the following tasks •...

  • Page 19: Software Not Compatible With The Flexstat

    NOTE: If a Level 1 or 2 password is configured • Check that an economizer is enabled. for 0000 in the Advanced menu, that • For Basic DCV, adjust the CO2 setpoint and/or password screen is bypassed in later deadband (under the Setpoints menu or AV58/ use.

  • Page 20: Motion/Occupancy Sensor Does Not Work

    Motion/Occupancy Sensor Does Not Work • Check for the correct remote temperature sensor configuration. • After an initial power-up or restart, the motion/ occupancy sensor requires about 30 seconds • Using KMC software, check that AI1 and AV1 before it will begin responding to motion. (space temp.) are not configured as “Out Of Service.”...

  • Page 21: Operation Issues

    • Consult with the network administrator for Date Are Not Correct on page proper network settings. • Using KMC software, check the outputs. Check • Contact KMC Controls technical support. that the schedule object is not configured as Out Of Service. Output, Fan, and Relay Issues...

  • Page 22: Damper/Economizer Does Not Work

    Finding and Selection Issues • Check the fan. • To view and download firmware updates from FlexStat product pages on the KMC Controls • Restart the FlexStat. web site, you must log in with a valid user name and password.

  • Page 23: Power Issues

    • Review the wiring information in Wiring NOTE: Customized programs are the Considerations on page 13, the BAC- responsibility of the user. KMC Controls 19xxxx FlexStat Installation Guide, and the does not provide support for such BAC-19xxxx FlexStat Sequence of Operation programs.
  • Page 24 CAUTION CAUTION Do not mistakenly connect 24 VAC BAC-19xxxx FlexStats are to an analog output ground. This is NOT COMPATIBLE with the not the same as a relay’s switched backplates of older BAC- common. See the backplate’s terminal 10xxx/12xxxx/13xxxx/14xxxx series label for the correct terminal.

  • Page 25: Appendix: Utc Offset Time Zones

    APPENDIX: UTC OFFSET TIME ZONES To select a time zone and optional DST, see Set Clock (Menu Options) on page If the FlexStat is used in a BACnet network with UTC (Coordinated Universal Time) synchronization (via broad- casting or addressing a single thermostat) set the UTC Offset value. The UTC Offset value is in minutes and corresponds to the distance of the local time zone to the zero degree meridian.

  • Page 26: Important Notices

    KMC Controls, Inc. makes no representations or warranties with respect to this document. In no event shall KMC Controls, Inc. be liable for any damages, direct or incidental, arising out of or related to the use of this document.

  • Page 27: Index

    INDEX Economizer (Damper) EOL (End Of Line) Switches ESD (Electrostatic Static Discharge) Advanced Menu 4, 10 Ethernet/IP 5, 16 Alarms Analog Outputs 15, 21 Delay BAC-5051E Router 8, 16 Fail Alarm Backplate Troubleshooting Back-Up Issues 16, 17, 21, 22 FCC compliance BACnet Firmware Binding, Cover on Backplate...
  • Page 28 Universal Time, Coordinated (UTC) Restart Restore Applications and Defaults Rotations Tab Warm Start Wiring 13, 23 Schedule Screen. See Display/Screen Sensor Troubleshooting © 2021 KMC Controls, Inc. Specifications and design subject to change without notice A G200824A BAC-19xxxx FlexStat Application Guide AG200824A...

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Flexstat bac-19 series

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