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BAC-19xxxx FlexStat Application Guide 

1 AG200824A

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)

 ............................ 5

System (Menu Options)

 ............................... 6

Trends and Alarms

 ..................................... 7

Passwords

 ................................................... 7

Communication Options

 ................................. 7

Configuration via Display Menus

 ................... 7

Ethernet/IP Configuration via Software

 .......... 7

MS/TP Configuration  via Software

 ............... 8

Display Customization

 ................................... 9

CO

2

 Sensors and DCV Operation

 .....................11

Introduction

 .............................................11

Basic DCV Mode

 .......................................12

Standard DCV Mode

 ..................................12

Wiring Considerations

 ..................................13

General Wiring Considerations

 ....................13

Ethernet Network Wiring Considerations

 .......14

MS/TP Network Wiring Considerations

 .........14

Restarting the FlexStat

 .................................15

Types of Restart

 .......................................15

Warm and Cold Starts

 ................................15

Troubleshooting

 ..........................................16

Alarm Issues

 ............................................16

Alarm, (False) Fan Status Fail

 ...................16

Alarms, Other

 ........................................16

Back-Up Issues

 ........................................16

Communication Issues

 ...............................16

(MS/TP) Data Port Communication Issues

 ..16

Ethernet/IP Network Communication Issues

 16

MS/TP Network Communication Issues

 .....16

Cover, Display, and Reset Issues

 ..................17

Cover Binds on Backplate

 ........................17

Display Is Blank, Erratic, or Frozen

 ............17

Display Keeps Resetting

 ..........................17

Configuration and Programming Issues

 ........18

Application Is Not Correct

 ........................18

Control Basic Programs Do Not Work

 .........18

BAC-19xxxx FlexStat

Application Guide

Summary of Contents for BAC-19 FlexStat Series

Page 1: ...de 12 Standard DCV Mode 12 Wiring Considerations 13 General Wiring Considerations 13 Ethernet Network Wiring Considerations 14 MS TP Network Wiring Considerations 14 Restarting the FlexStat 15 Types of Restart 15 Warm and Cold Starts 15 Troubleshooting 16 Alarm Issues 16 Alarm False Fan Status Fail 16 Alarms Other 16 Back Up Issues 16 Communication Issues 16 MS TP Data Port Communication Issues 16...

Page 2: ...mperature Reading Is Incorrect 20 Temperature Setpoint Is Not Maintained 20 Operation Issues 21 Schedules Do Not Operate Properly 21 Time and or Date Are Not Correct 21 Trends Do Not Work 21 Other Issues 21 Output Fan and Relay Issues 21 Analog Output Does Not Work 21 Damper Economizer Does Not Work 22 Fan Does Not Run 22 Relay External Does Not Work 22 Relay Internal Does Not Work 22 Updating Fir...

Page 3: ...s required for fully configuring alarms and trends adding custom Control Basic code and customizing the display see Display Customization on page 9 For compatible software see the BAC 190000 Series FlexStats data sheet Initial Configuration For initial FlexStat configuration following the menu steps in this order is recommended 1 Check that the desired AHU FCU HPU or RTU application is selected If...

Page 4: ...ge applications Password 1 Set password Level 1 for Active Heating and Cooling Setpoints See Passwords on page 7 Password 2 Set password Level 2 for Settings menu Display Display options Color Scheme Select Blue Grey Orange or Red Contrast adjust the percentage value Brightness adjust the percentage value to the minimum needed for the ambient lighting Decreasing the default brightness decreases en...

Page 5: ...ng Set the Unoccupied Cooling setpoint take effect After restarting most settings will change back to their defaults NOTE For customizing the display see Display Customization on page 9 Communications Menu Options NOTE On E models the default protocol is BACnet over Ethernet with a Device ID of 1 To see new E models in software be sure the software attached to the network can discover BACnet over ...

Page 6: ... to be in auto mode off Equipment Delay Set the Equipment Delay time minutes Stage Delay Set the Stage Delay time minutes Economizer Enable Enable or disable the Economizer Min Economizer Da Set the Minimum Economizer Damper position Dehum Enable Enable or disable Dehumidification Heating Fan RTU select the RTU fan to be controlled by the FlexStat Auto or by the RTU s internal relay only Off when ...

Page 7: ...default NOTE FlexStats are factory set with a default Level 2 password for configuration For more information about the default password log in to the KMC web site and see the Conquest Controllers Default Password Technical Bulletin NOTE For security purposes change the controller s default password s Be sure to document any changes made to passwords COMMUNICATION OPTIONS Configuration via Display...

Page 8: ...ID and Network Numbers cannot duplicate those of another port in BACstac It may be easier to temporarily change an existing IP port to Ethernet 2 Under Network Manager In KMC Connect or TotalControl right click BACnet and select Find Devices or Regenerate All Networks 3 Right click the FlexStat device object and se lect Configure Device 4 Under General Properties enter the desired Device Instance ...

Page 9: ...ject See the BAC 190000 Series FlexStats data sheet for the current soft ware packages and versions that support the FlexStat See the software Help system for more information Display Object UI1 UI_01 Level 1 and 2 Passwords Title Bar Display Options Time Date Options Lower Rotations Icon Options Large Top Rotation Space Temp Only Default General Tab Rotations Tab Icon Bar Tab NOTE Right click in ...

Page 10: ...nd Communications Menus on the Display Setpoints Tab Advanced Tab Options Tab NOTE See Settings on page 3 for explanations of options After saving changes restart the FlexStat NOTE One setpoint can be disabled if the FlexStat is used for only cooling or only heating NOTE If disabled system or communication options can then only be changed in software ...

Page 11: ...tion level of outside air at the building s location Every week after installation the lowest detected reading in the previous week is written into AV60 replacing the original default or previous value 380 ppm AV60 Stand ard Standard DCV Start Point In Standard DCV mode the CO2 level setpoint at which the economizer damper begins to modulate open It equals the DCV CO2 baseline plus 200 ppm and the...

Page 12: ...ntilation Benefits for Your Building Basic DCV Mode Basic DCV mode is On Off and aims to optimize IAQ Indoor Air Quality It maximizes the supply of fresh outside air to the space after a sufficient level of occupancy is detected from the CO2 level exceeding the CO2 Setpoint During occupied mode the modulating OAD is controlled typically by the economizer application When the space CO2 rises above ...

Page 13: ... 12xxxx 13xxxx 14xxxx FlexStats If replacing an older FlexStat replace the backplate as well CAUTION To avoid damage from ground loops and other communication issues in networked FlexStats correct phasing on MS TP network and power connections on ALL the networked controllers is critically important CAUTION Relays are for Class 2 voltages 24 VAC only Do not connect line voltage to the relays Do no...

Page 14: ...mmunications in case of an open conductor on the network cable use redundant wiring routed separately to enhance reliability Connect no more than 128 addressable BACnet master devices total to one MS TP network The devices can be any mix of controllers or routers Up to 127 slave devices can also be connected Limiting the MS TP network size to no more than about 30 controllers will optimize network...

Page 15: ...me manner From KMC software right click the FlexStat in the Network Manager and select Configure Device expand Application Properties select the application and units in the Base RESTARTING THE FLEXSTAT Types of Restart If the FlexStat is not operating correctly restart reinitialize or reset it Any restart interrupts nor mal operation and three types of restart exist A warm start is generally the ...

Page 16: ...the highest numbered controller Ensure wiring is correct See Wiring Issues on page 23 See Planning BACnet Networks Application Note AN0404A Check for ground loops See Avoiding and Troubleshooting Ground Loops Application Guide Application Index drop down menu click Save Changes right click the FlexStat in the Network Manager select Reinitialize Device Restore to the original application in the sam...

Page 17: ...rmer with short wiring enough capacity VA and no other connected devices If the FlexStat works with the test transformer the wiring and or transformer in its previous See the MS TP Troubleshooting Using a Multimeter Bifurcation video and downloadable troubleshooting guide Cover Display and Reset Issues Cover Binds on Backplate CAUTION BAC 19xxxx FlexStats are NOT COMPATIBLE with the backplates of ...

Page 18: ...ation See the Conquest Controllers Default Password Technical Bulletin TB150716 by logging into the KMC web site location is inadequate If it does not work with the test transformer replace the FlexStat Put another FlexStat on the installed backplate and if the second FlexStat functions properly replace the first FlexStat Configuration and Programming Issues NOTE Use the relevant KMC software or a...

Page 19: ... Input Sensor and Value Issues on page 19 CO2 and DCV Sequences Are Not Working Ensure that the desired CO2 DCV mode is enabled under System in Settings or MSV12 Check that an economizer is enabled For Basic DCV adjust the CO2 setpoint and or deadband under the Setpoints menu or AV58 AV59 Check that conditions for self calibration are met The CO2 sensor uses a self calibration technique designed t...

Page 20: ... is selected Check that the sensor is properly mounted in a proper location See the Room Sensor and Thermostat Mounting and Maintenance Application Guide Check that the temperature sensors are not covered or blocked Check for the correct remote temperature sensor configuration Using KMC software check that AI1 and AV1 space temp are not configured as Out Of Service See also Input Values Outside Ex...

Page 21: ...g objects are not configured as Out Of Service Check the relevant sensors See Input Sensor and Value Issues on page 19 Other Issues Thoroughly check appropriate connections wiring and settings Restart the FlexStat Consult with the network administrator for proper network settings Contact KMC Controls technical support Output Fan and Relay Issues Analog Output Does Not Work CAUTION Do not mistakenl...

Page 22: ...rade process is recommended practice Malfunction after Firmware Update Restart the FlexStat Check the application configuration NOTE Restoring to the factory defaults and reconfiguring might be needed if how Damper Economizer Does Not Work Enable the economizer in the System section of Settings Connect to the correct output Fan Does Not Run NOTE The animated fan icon is coupled with BV1 in the pac...

Page 23: ...ee Ethernet IP Configuration via Software on page 7 To prevent losing communication with E models changing from the default Ethernet to an IP setting requires multiple steps in software See Ethernet IP Configuration via Software on page 7 Wiring Issues Review the wiring information in Wiring Considerations on page 13 the BAC 19xxxx FlexStat Installation Guide and the BAC 19xxxx FlexStat Sequence o...

Page 24: ...nalog 9 GND 7 9 Analog 8 Analog 7 Relay 6 SC 4 6 Relay 5 Relay 4 Relay 3 SC 1 3 Relay 2 Relay 1 Outputs NOTE Values Shown Are Approximate BACnet MS TP Network Inputs 24 VAC NOTE SC Switched Relay Common Should Have the Phase Side of 24 VAC Connected Wiring Inputs and Outputs Dependent on Application 24 VAC 10K Ohms Thermistor or O Ohms Closed Contact 0 1 0 2 VDC If Network Token Passing is Present...

Page 25: ...da Central Standard Time UTC 360 minutes 6 hours or 300 minutes 5 hours during DST USA Canada Eastern Standard Time UTC 300 default minutes 5 hours or 240 minutes 4 hours during DST Bolivia Chile UTC 240 minutes 4 hours Argentina Uruguay UTC 180 minutes 3 hours United Kingdom Iceland Portugal 0 hours Austria Belgium Denmark Italy UTC 60 minutes 1 hour East of 0 de gree Meridian Egypt Israel Turkey...

Page 26: ...n any form by any means without the written permis sion of KMC Controls Inc The material in this document is for information purposes only The contents and the product it describes are subject to change without notice 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...

Page 27: ... Demand Control Ventilation See CO2 Defaults 4 7 11 Delay Equipment 6 15 Display Screen Blanking 17 Buttons 3 Configuration 3 4 Customization 4 9 Inactivity Timer 4 Navigation 4 Settings 3 Troubleshooting 17 E Economizer Damper 22 EOL End Of Line Switches 16 ESD Electrostatic Static Discharge 26 Ethernet IP 5 16 F Fan Delay 15 Fail Alarm 16 Troubleshooting 19 FCC compliance 26 Firmware Troubleshoo...

Page 28: ...pplications and Defaults 4 Rotations Tab 9 S Schedule 6 Screen See Display Screen Sensor CO2 11 Troubleshooting 19 2021 KMC Controls Inc Specifications and design subject to change without notice AG200824A Setpoints Hold 5 Menu 5 Password 7 Tab 10 Troubleshooting 20 Settings 3 Start Reset Cold or Warm 15 Surge Suppressor 14 Switches EOL End of Line 16 System 6 T Temperature Display 3 Setpoints 5 T...

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