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KMC Controls KMCConquest BAC-5051E Application Manual

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KMC AFMS
BAC-5051E Router
Application Guide
KMC Controls, 19476 Industrial Drive, New Paris, IN 46553 / 877-444-5622 / Fax: 574-831-5252 / www.kmccontrols.com

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Summary of Contents for KMC Controls KMCConquest BAC-5051E

  • Page 1 KMC AFMS BAC-5051E Router Application Guide KMC Controls, 19476 Industrial Drive, New Paris, IN 46553 / 877-444-5622 / Fax: 574-831-5252 / www.kmccontrols.com...

  • Page 2: Table Of Contents

    Table of Contents Getting Started Introduction Prerequisites Accessing the Router's AFMS Features Setting Up an AFMS Setting AFMS Parameters Before Beginning Setting the Parameters Calibrating the AFMS's Sensors Running AFMS Learning Mode Before Starting Learning Mode Checking Learn Ready Status Interpreting Learn Ready Status Manually Starting Learning Mode Enabling Learning Mode to Auto Start...

  • Page 3: Getting Started

    Getting Started I n t r o d u c t i o n The BAC-5051E router can be used to configure, control, tune, and monitor the operation of a KMC Conquest Airflow Measurement System (AFMS). AFMS features are accessible through the Balancing web page and are active only when a valid AFMS controller has been discovered.

  • Page 4: Setting Up An Afms

    Note: The background of the selected unit changes to yellow and four tabs for the AFMS are added to the bottom of the page. S e t t i n g U p a n A F M S To set up an AFMS using the router, complete the following processes in this order: Setting AFMS Parameters on page 5 Calibrating the AFMS's Sensors on page 7 Running AFMS Learning Mode on page 8...

  • Page 5: Setting Afms Parameters

    Setting AFMS Parameters B e f o r e B e g i n n i n g Before setting a KMC Conquest Airflow Measurement System's parameters in AFMS, ensure that the Prerequisites on page 3 have been met. Caution: Select the appropriate application on the AFMS controller before configuring other settings. Changing applications after configuration will restore most parameters to their defaults.
  • Page 6 Note: Before the AFMS controller can run Learning Mode, it must learn the minimum and maximum incline of the damper using the inclinometer. Select Save. Continue to Calibrating the AFMS's Sensors on page AFMS BAC-5051E Router Application Guide AG230224A...

  • Page 7: Calibrating The Afms's Sensors

    Calibrating the AFMS's Sensors Select the Tune tab. Under Offset for Supply Air Flow, enter the CFM offset (determined by a TAB technician) for the supply air pressure transducer. Under Multiplier for Supply Air Flow, enter the multiplier (determined by a TAB technician) for the supply air pressure transducer.

  • Page 8: Running Afms Learning Mode

    Running AFMS Learning Mode B e f o r e S t a r t i n g L e a r n i n g M o d e For valid results, first ensure that: The parameters are set correctly. (See Setting AFMS Parameters on page The sensors are calibrated.

  • Page 9: Manually Starting Learning Mode

    Check Min Delta Temp. If the current ΔT (the absolute difference between the outside and return air temperatures) is less than the minimum difference allowed, then continue to Enabling Learning Mode to Auto Start on page Note: Go to Monitor to find Outside Air Temp and Return Air Temp. Calculate the absolute difference, then compare to Min Delta Temp.

  • Page 10: Alternative To Running Learning Mode

    Note: If the ΔT becomes less than the Min Delta Temp, the AFMS controller will abort Learning Mode. This is to insure that the controller does not receive unusable learning samples. 10°F or more Min Delta Temp is recommended. Leave Auto Start Delta Temp set to the default, or adjust it if needed. Note: When the ΔT reaches the Auto Start Delta Temp, Learning Mode will start.

  • Page 11: Controlling Airflow With An Afms

    Controlling Airflow with an AFMS A b o u t After Setting Up an AFMS on page 4, you can control outside air flow, or control mixed air temperature. Also, for setup or maintenance purposes, you can command a damper position. Alternatively, you can pass through control of the damper actuator to an external controller, using the AFMS for measurement and monitoring only.

  • Page 12: Enabling Pass Through

    Note: The AFMS controller will command the damper to the Outside Air Damper Setpoint. If Enable Low Limit is ON and the mixed air temperature reaches the Low Temp Limit, the damper will modulate toward closed to prevent freezing of the equipment. If an occupancy sensor is used, this Control Mode will only be active when the served space is occupied.

  • Page 13: Monitoring With An Afms

    Monitoring with an AFMS Accessing Monitoring Select the Monitor tab. Monitoring Operation Label Description Outside Air Flow The AFMS controller's current outside air CFM calculation displays here. NORMAL = No faults are detected. LEARN MODE = Learning Mode is ON. (See Running AFMS Learning Mode on page AFMS Status SPAN MODE = Learn Damper Span is ON.
  • Page 14 Label Description If the saved Control Mode is MAT CTRL (see Controlling Mixed Air Temperature on page 11), FAULT will display if Mixed Air Temp is more than 15°F off from the Mixed Mixed Air Flow Fault Air Temp Setpoint for longer than the Stroke Time (Seconds) (found under Configure > Damper).

  • Page 15: Accessing The Damper Characterization Table

    Accessing the Damper Characterization Table M a n u a l l y E n t e r i n g D a m p e r C h a r a c t e r i z a t i o n D a t a While not ideal, the damper characterization data can be calculated and entered manually in the AFMS Table.

  • Page 16: Verifying The Damper Characterization Data

    Note: Find ASHRAE Standard 111 on this page of read-only versions of ASHRAE standards. Note: See Controlling Airflow with an AFMS on page 11 for how to set the outside air damper to the required positions for the measurements. Note: See Monitoring with an AFMS on page 13 for where to find the sensor readings.

  • Page 17: 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.

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