KMC Controls BAC-5051E Guía del usuario

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

Table of Contents

Getting Started 3

Introduction 3

Prerequisites 3

Accessing the Router's AFMS Features 3

Setting Up an AFMS 4

Setting AFMS Parameters 5

Before Beginning 5

Setting the Parameters 5

Calibrating the AFMS's Sensors 7

Running AFMS Learning Mode 8

Before Starting Learning Mode 8

Checking Learn Ready Status 8

Interpreting Learn Ready Status 8

Manually Starting Learning Mode 9

Enabling Learning Mode to Auto Start 9

Alternative to Running Learning Mode 10

Controlling Airflow with an AFMS 11

About 11

Controlling Outside Air Flow 11

Controlling Mixed Air Temperature 11

Commanding a Damper Position 11

Enabling Pass Through 12

Monitoring with an AFMS 13

Accessing Monitoring 13

Monitoring Operation 13

Monitoring Faults 13

Accessing the Damper Characterization Table 15

Manually Entering Damper Characterization Data 15

Accessing the AFMS Table 15

Interpreting the AFMSTable 15

Calculating the damper characterization data 15

Verifying the Damper Characterization Data 16

Important Notices 17

Trademarks 17

Patents 17

Disclaimers 17

AFMS BAC-5051E Router Application Guide 2 AG230224A

Getting Started

Introduction

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.

Prerequisites

1. Install a KMCConquest AFMS (the controller and all system components).

Note: See the

Airflow Measurement System Installation Guide,

found on any AFMScontroller's

product page.

2. Select the application (on the AFMScontroller) needed for the equipment.

Caution: Select the application

before

configuring other settings. Changing applications after

configuration will restore most parameters to their defaults. See "Selecting an Application" in the

KMCConquest AFMS NetSensor Application Guide,

found on any AFMScontroller's

product page.

Note: Complete basic configuration using a Conquest NetSensor, KMC Connect software, TotalControl

software, and/or the KMC Converge module for Niagara WorkBench.

3. Set the AFMScontroller's communication parameters.

Note: See the above note on the basic configuration methods.

4. Configure the router and set up routing.

Note: See the

Application and Installation Guide for the BAC-5051E Router

for details.

Accessing the Router's AFMS Features

1. Use an Internet browser to log in.

2. From the Advanced group, select Balancing.

3. Enter a range of device instance values that include an AFMS controller.

4. Select Discover.

Note: Up to 50 devices will be added to the list.

5. Select an AFMS controller from the list of discovered units.

AFMS BAC-5051E Router Application Guide 3 AG230224A

Note: The background of the selected unit changes to yellow and four tabs for the AFMS are added to the

bottom of the page.

Setting Up an AFMS

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

Note: In environmental conditions where you can't run Learning Mode, see

Manually Entering Damper

Characterization Data

on page 15.

AFMS BAC-5051E Router Application Guide 4 AG230224A

Setting AFMS Parameters

Before Beginning

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. See "Selecting

an Application" in the

KMCConquest AFMS NetSensor Application Guide,

found on any

AFMScontroller's product page.

Setting the Parameters

1. Select the Configure tab.

2. For Supply Area, enter the measurement (in square feet) of the cross section where the supply airflow pickup

tubes were installed.

Note: For guidance about the location of the pickup tubes, see "Mounting the Supply Airflow Pickup Tubes"

in the

Airflow Measurement System Installation Guide

, found on any AFMScontroller's product

page.

3. Choose to either leave Enable Low Limit set to ON (the default), or to turn it OFF.

Warning: ON is recommended to prevent freezing of equipment. If not needed (due to your

equipment's particular nature), you might choose to turn it OFF.

4. Either leave Low Temp Limit set to the default (37°F), or adjust the value.

Note: If the mixed air temperature reaches the Low Temp Limit set here (and Enable Low Limit is set to

ON) the outside air damper will modulate toward closed to prevent freezing of the equipment.

5. For Stroke Time (Seconds), enter the time (in seconds) that it takes for the damper to go from 100% open to

100% closed.

6. For Damper Reverse Action:

oSelect NORMAL if the greater the output signal to the damper actuator is, the more the damper opens (if

10 volts = 100% open).

oSelect REVERSE if the greater the output signal to the damper actuator is, the more the damper closes (if

10 volts = 100% closed).

7. For Actuator Voltage, select the voltage range of the damper actuator (2 to 10 volts or 0 to 10 volts).

8. Select ON for Learn Damper Span.

AFMS BAC-5051E Router Application Guide 5 AG230224A

Note: Before the AFMScontroller can run Learning Mode, it must learn the minimum and maximum incline

of the damper using the inclinometer.

9. Select Save.

Continue to

Calibrating the AFMS's Sensors

on page 7.

AFMS BAC-5051E Router Application Guide 6 AG230224A

Calibrating the AFMS's Sensors

1. Select the Tune tab.

2. Under Offset for Supply Air Flow, enter the CFM offset (determined by a TABtechnician) for the supply air

pressure transducer.

3. Under Multiplier for Supply Air Flow, enter the multiplier (determined by a TABtechnician) for the supply air

pressure transducer.

4. Under Offset for Outside Air Temp,Return Air Temp, and Mixed Air Temp, enter the °F offsets (determined

by a TABtechnician) for the outside, return, and mixed air temperature sensors.

5. Select Save.

Note: For more information on the AFMS's sensors, see the

Airflow Measurement System Selection

Guide,

found on any AFMScontroller's product page.

Continue to

Running AFMS Learning Mode

on page 8.

AFMS BAC-5051E Router Application Guide 7 AG230224A

Running AFMS Learning Mode

Before Starting Learning Mode

For valid results, first ensure that:

lThe parameters are set correctly. (See

Setting AFMS Parameters

on page 5.)

lThe sensors are calibrated. (See

Calibrating the AFMS's Sensors

on page 7.)

lThe supply air fan is running at a normal, steady rate (without hunting or sporadic spikes).

lIf the unit has a heat recovery wheel, it is turned off.

lIf any heating or cooling sources are located upstream of the MATsensor, they are turned off.

lIf the unit has a bypass damper, it is set to 100% open.

Checking Learn Ready Status

1. Select the Learn tab.

2. Take note whether Learn Ready reports READY or NOTREADY.

Interpreting Learn Ready Status

If READY is reported, you may manually start Learning Mode. (Continue to

Manually Starting Learning Mode

on page 9.)

If NOTREADY is reported:

lCheck Sensor Fault. If FAULTis reported, fix any faults found.

Note: Go to Monitor to find more detailed information on faults. (See

Monitoring with an AFMS

on page

13.)

lEnsure that Learn Damper Span has completed.

Note: (Under Configure,) Learn Damper Span must currently be OFF, and Damper Span Learned must

report LEARNED.

lMixed Air Temp Low Limit Control may be ACTIVE. If that is the case, continue to

Enabling Learning

Mode to Auto Start

on page 9.

Note: Go to Monitor to find Mixed Air Temp Low Limit Control. Go to Configure to find Enable Low Limit

and Low Temp Limit. (See

Setting AFMS Parameters

on page 5 for important guidance on Low Limit.)

AFMS BAC-5051E Router Application Guide 8 AG230224A

lCheck 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 9.

Note: Go to Monitor to find Outside Air Temp and Return Air Temp. Calculate the absolute difference,

then compare to Min Delta Temp.

Manually Starting Learning Mode

If Learn Ready reports READY (see

Checking Learn Ready Status

on page 8), you may start Learning Mode

manually.

1. Leave Min Delta Temp set to the default, or adjust it if needed.

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. Setting the Min Delta Temp at

a 10°F or larger difference is recommended.

2. Leave Time Between Samples (Seconds) set to the default, or adjust it if needed.

Note: Most often, Time Between Samples (Seconds) can be left on the default (60 seconds). You might

increase the value if the damper Stroke Time (see

Setting AFMS Parameters

on page 5) is longer than

that of a typical unit, or if the damper actuator requires extra time to respond. You might decrease it if a

large ΔT is present and time at the site is limited. However, too little time between samples could result in

inaccurate measurements.

3. For Learning Mode, select ON.

4. Select Save.

5. Wait for Learning Mode to complete.

Note: To calculate the total time (in minutes) that Learning Mode should take to complete, multiply Time

Between Samples (Seconds) by 91, then divide by 60.

Note: Learn Timer shows the elapsed time since Learning Mode started.

Enabling Learning Mode to Auto Start

If LearnReady reports NOTREADY because of currently unfavorable temperatures (see

Interpreting Learn

Ready Status

on page 8) you may enable the AFMScontroller to automatically start Learning Mode when it

detects favorable temperatures at a later time.

1. Leave Min Delta Temp set to the default, or adjust it if needed.

AFMS BAC-5051E Router Application Guide 9 AG230224A

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.

2. 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. Learning Mode will

complete if the ΔT remains greater than the Min Delta Temp for the entire duration. An Auto Start Delta

Temp that is at least 10°F more than Min Delta Temp is recommended.

3. Leave Time Between Samples (Seconds) set to the default, or adjust it if needed.

Note: Most often, Time Between Samples (Seconds) can be left on the default (60 seconds). You might

increase the value if the damper Stroke Time (Seconds) (found under Configure > Damper) is longer than

that of a typical unit, or if the damper actuator requires extra time to respond.

4. For Auto Learn Enable, select ON.

5. Select Save.

Note: See the Date of Last Learn and the OAT When Learned once Learning Mode has run automatically.

Alternative to Running Learning Mode

While not ideal, the damper characterization data can be calculated and entered manually. This should only be done

if — in the allotted time for setting up the AFMS — the ΔT is unlikely to remain greater than the Min Delta Temp for

the duration of Learning Mode. See

Manually Entering Damper Characterization Data

on page 15 for

guidance.

AFMS BAC-5051E Router Application Guide 10 AG230224A

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