KMC CONTROLS BAC-9300 Series Unitary Controller Installation Guide

: June 9, 2024
: KMC CONTROLS

Table of Contents

KMC CONTROLS BAC-9300 Series Unitary Controller
INTRODUCTION
MOUNT CONTROLLER
CONNECT SENSORS AND EQUIPMENT
CONNECT (OPT.) PRESSURE FLOW SENSOR
CONNECT (OPT.) ETHERNET NETWORK
CONNECT (OPTIONAL) MS/TP NETWORK
**CONNECT POWER
POWER AND COMMUNICATION STATUS
MS/TP NETWORK ISOLATION BULBS
CONFIGURE/PROGRAM THE CONTROLLER
SAMPLE (BAC-9311) WIRING
REPLACEMENT PARTS
IMPORTANT NOTICES
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

KMC CONTROLS BAC-9300 Series Unitary Controller

INTRODUCTION

Complete the following steps to install a KMC Conquest™ BAC-9300 Series Unitary Controller. For controller specifications, see the data sheet at kmccontrols. com. For additional information, see the KMC Conquest Controller Application Guide.

MOUNT CONTROLLER

NOTE: Mount the controller inside a metal enclosure for RF shielding and physical protection.
NOTE: To mount the controller with screws on a flat surface, complete the steps in On a Flat Surface on page 1. Or to mount the controller on a 35 mm DIN rail (such as integrated in an HCO-1103 enclosure), complete the steps in On a DIN Rail on page 1.

On a Flat Surface

Position the controller so the color-coded terminal blocks 1 are easy to access for wiring.
NOTE: The black terminals are for power. The green terminals are for inputs and outputs. The gray terminals are for communication.
Screw a #6 sheet metal screw through each corner of the controller 2 .

On a DIN Rail

Position the DIN rail 3 so that when the controller is installed the color-coded terminal blocks are easy to access for wiring.
Pull out the DIN Latch 4 until it clicks once.
Position the controller so that the top four tabs 5 of the back channel rest on the DIN rail.
Lower the controller against the DIN rail.
Push in the DIN Latch 6 to engage the DIN rail.
NOTE: To remove the controller, pull the DIN Latch until it clicks once and lift the controller off the DIN rail.

CONNECT SENSORS AND EQUIPMENT

NOTE: See Sample (BAC-9311) Wiring on page 7 and Input/Output Objects/Connections on page 8 for more information. See also the BAC-9300 series videos in the KMC Conquest Controller Wiring playlist.
NOTE: A digital STE-9000 Series NetSensor can be used for configuring the controller (see Configure/Program the Controller on page 6). After the controller has been configured, an STE-6010, STE-6014, or STE-6017 analog sensor can be connected to the controller in place of the NetSensor. See the relevant installation guide for additional details.

Plug an Ethernet patch cable 7 connected to an STE-9000 Series or STE-6010/6014/6017 sensor into the (yellow) ROOM SENSOR port 8 of the controller.
NOTE: The Ethernet patch cable should be a maximum of 150 feet (45 meters).
CAUTION On “t “EE” m” models do No NOOT plug cable meant ethernet communication into to the room sensor port The room Sm Sensor power net sensor and the supplied voltage may damage ae an Ethernet switch on or router.
Wire any additional sensors to the green (input) terminal block 10 . See Sample (BAC-9311) Wiring on page 7.
NOTE: Wire sizes 12–24 AWG can be clamped in each terminal.
NOTE: No more than two 16 AWG wires can be joined at a common point.
Wire additional equipment (such as fans, heaters, dampers, and valves) to the green (output) terminal block 11 . See Sample (BAC-9311) Wiring on page.

CONNECT (OPT.) PRESSURE FLOW SENSOR

NOTE: Complete the steps in this section to connect an air flow sensor to the BAC-9311/9311C/9311CE controller.
NOTE: BAC-9301/9301C/9301CE controllers do not have PRESSURE SENSOR ports.
NOTE: Use 1/4 inch (6.35 mm) FR tubing. Tubing should not be longer than 6 feet (20 meters).

Remove the black shipping plugs 9 from the PRESSURE SENSOR ports.
Connect the high pressure tube from the pressure flow sensor to the HIGH 12 port on the controller.
Connect the low pressure tube from the pressure flow sensor to the LOW 13 port on the controller.

CONNECT (OPT.) ETHERNET NETWORK

For BAC-93x1CE models (only), connect an Ethernet patch cable 14 to the 10/100 ETHERNET port (“E” models only).
CAUTION On “t “EE” m” models do No NOOT plug cable meant ethernet communication into to the room sensor port The room Sm Sensor power net sensor and the supplied voltage may damage ae an Ethernet switch on or router.
NOTE: The Ethernet patch cable should be T568B Category 5 or better and a maximum of 328 feet (100 meters) between devices.
NOTE: Before May 2016, BAC-xxxxCE models had a single Ethernet port. They now have dual Ethernet ports, enabling daisy-chaining of controllers 14 . See the Daisy-Chaining Conquest Ethernet Controllers Technical Bulletin for more information.
NOTE: On newer models, the Room Sensor port is yellow 8 instead of black to help differentiate it from the black Ethernet ports.
NOTE: For more information, see Sample (BAC- 9311) Wiring on page 7 and the BAC-9300 series videos in the KMC Conquest Controller Wiring playlist.

CONNECT (OPTIONAL) MS/TP NETWORK

For BAC-93×1/93x1C models (only), connect the BACnet network to the gray BACnet MS/TP terminal block 15 .
NOTE: Use 18 gauge AWG shielded twisted pair cable with maximum capacitance of 51 picofarads per foot (0.3 meters) for all network wiring (Belden cable #82760 or equivalent).
- Connect the –A terminals in parallel with all other –A terminals on the network.
- Connect the +B terminals in parallel with all other +B terminals on the network.
- Connect the shields of the cable together at each device using a wire nut or the S terminal in KMC BACnet controllers.
Connect the cable shield to a good earth ground at one end only.
NOTE: For principles and good practices when connecting an MS/TP network, see Planning BACnet Networks (Application Note AN0404A).
NOTE: The EOL switch is shipped from the factory in the OFF position.
If the controller is at either end of a BACnet MS/TP network (only one wire under the terminals), turn the EOL switch 16 to ON.
NOTE: For more information, see Sample (BAC-9311) Wiring on page 7 and the BAC-9300 series videos in the KMC Conquest Controller Wiring playlist.

**CONNECT POWER

**

NOTE: Follow all local regulations and wiring codes.

Connect a 24 VAC, Class-2 transformer to the black power terminal block of the controller.
- Connect the neutral side of the transformer to the controllers common terminal ⊥⊥ 17 .
- Connect the AC phase side of the transformer to the controllers phase terminal ∼∼ 18 .

NOTE: Connect only one controller to each transformer with 12—24 AWG copper wire.
NOTE: Use either shielded connecting cables or enclose all cables in conduit to maintain RF emissions specifications.
NOTE: For more information, see Sample (BAC- 9311) Wiring on page 7 and the BAC-9300 series videos in the KMC Conquest Controller Wiring playlist.

POWER AND COMMUNICATION STATUS

The status LEDs indicate power connection and network communication. The following descriptions explain their activity during normal operation (at least 5 to 20 seconds after power-up/initialization or restart).

NOTE: If both the green READY LED and the amber COMM LED remain OFF, check the power and cable connections to the controller.

Green READY LED
After controller power-up or restart is complete, the READY LED flashes steadily about once per second, indicating normal operation.

Amber (BACnet MS/TP) COMM LED 20

During normal operation, the COMM LED flickers as the controller receives and passes the token over the BACnet MS/TP network.
When the network is not connected or communicating properly, the COMM LED flashes more slowly (about once a second).

Green ETHERNET LED
NOTE: The Ethernet status LEDs indicate network connection and communication speed.

The green Ethernet LED stays ON when the controller is communicating with the network.
The green Ethernet LED is OFF when the (powered) controller is not communicating with the network.

Amber ETHERNET LED

The amber Ethernet LED flashes when the controller is communicating with a 100BaseT Ethernet network.
The amber Ethernet LED remains OFF when the (powered) controller is communicating with the network at only 10 Mbps (instead of 100 Mbps).

NOTE: If both the green and amber Ethernet LEDs remain OFF, check the power and network cable connections.

MS/TP NETWORK ISOLATION BULBS

The two network isolation bulbs 23 serve three functions:

Removing the (HPO-0055) bulb assembly opens the MS/TP circuit and isolates the controller from the network.
If one or both bulbs are ON, the network is improperly phased. This means the ground potential of the controller is not the same as other controllers on the network. If this happens, fix the wiring. See Connect (Optional) MS/TP Network on page 3.
If the voltage or current on the network exceeds safe levels, the bulbs blow, opening the circuit. If this happens, fix the problem and replace the bulb assembly.

CONFIGURE/PROGRAM THE CONTROLLER

See the table for the most relevant KMC Controls tool for configuring, programming, and/or creating graphics for the controller. See the documents or Help systems for the respective KMC tool for more information.
See the table (on the next page) for the most relevant KMC Controls tools for configuring, programming, and/or creating graphics for the controller. See the tools’ documents or Help systems for more information.

NOTE: After the controller has been configured, an STE-6010/6014/6017 series analog sensor can be connected to the controller in place of an STE-9000 series digital NetSensor.

NOTE: A BAC-9301CE can be configured by connecting an HTML5-compatible web browser to the controller’s default IP address (192.168.1.251). See the Conquest Ethernet Controller Configuration Web Pages Application Guide for more information about the built-in configuration web pages.

NOTE: To configure a VAV controller, enter the correct K factor for the VAV box. Typically, this is supplied by the manufacturer of the VAV unit. If this information is unavailable, use an approximate K factor from the chart in the Appendix: K Factors for VAV section in the KMC Conquest Controller Application Guide.

For instructions on VAV balancing:

With an STE-9000 series NetSensor, see the VAV Airflow Balancing with an STE-9xx1 section of the KMC Conquest Controller Application Guide.
With a BAC-5051E Router, see its application and installation guide.
With KMC Connect or TotalControl, see the Help system for the software.

SETUP PROCESS	KMC CONTROLS TOOL
Configu- ration	Programming (Control Basic)

Page Graphics***
| | | Conquest Net- Sensor

| | | Internal con- figuration web pages in Con- quest Ethernet “E” models**

|

| | KMC Converge™ module for Niagara Work- bench
| |

| KMC Converge GFX module for Niagara Work- bench
*Custom graphical user-interface web pages can be hosted on a remote web server, but not in the controller.

Conquest Ethernet-enabled “E” models with the latest firmware can be configured with an HTML5 compatible web browser from pages served from within the controller. For information, see the [Con](https://www.kmccontrols.com/product/BAC-9301CE/) [quest Ethernet Controller Configuration Web](https://www.kmccontrols.com/product/BAC- 9301CE/) [Pages Application Guide**](https://www.kmccontrols.com/product /BAC-9301CE/).

***Near Field Communication via enabled smart phone or tablet running the KMC Connect Lite app.

****Full configuration and programming of KMC Conquest controllers is supported starting with TotalControl ver. 4.0.

SAMPLE (BAC-9311) WIRING

(Single Duct VAV, Series Fan Powered with Modulating Reheat and Vent Control)

NOTE: Connect the STE-9xxx (or STE-6010/6014/6017 with no ventilation control) sensor to the Room Sensor port using a max. of 150 feet
of Ethernet patch cable.
NOTE: See the KMC Conquest Controller Application Guide for information about switched commons (SC), using VDC power, and other issues.
NOTE: Use 24 VAC (only) on triac outputs (BO1–BO6 with SCs)!
CAUTION: Do NOT connect 24 VAC to the analog outputs (UO7–UO10 and GNDs)!

CONNECTIONS (SAMPLE) INPUTS
UI3 = DAT SENSOR UI8 = PRI POSITION ROOM SENSOR
OUTPUTS (Binary/Triac)
BO1 = FAN ENABLE BO5 = PRI DAMPER CW BO6 = PRI DAMPER CCW
OUTPUTS (Universal/Analog)
UO7 = MOD REHEAT UO8 = FAN SPEED
NETWORK
MS/TP OR ETHERNET
POWER

NOTE: For MS/TP models, turn the End Of Line switch ON at both physical ends of the MS/TP network. Connect the cable shield to earth ground at only one point.

NOTE: For Ethernet models, connect the controller to the network with a standard Ethernet patch cord.

NOTE: For more wiring examples, see the wiring diagrams that are part of the application library in KMC Connect, Converge, or TotalControl. Early models shown in the drawings had different terminal locations. Follow the terminal labels (not location).

NOTE: See Sample (BAC-9311) Wiring on page 7 for more information.
NOTE: Universal Input (UIx) terminal = Analog Input (AIx) object or Binary Input (BIx). Universal Output (UOx) terminal = Analog Output
(AOx) object.
NOTE: Universal (analog) inputs and outputs can be configured to emulate binary (on/off or voltage/no-voltage) objects. They are used with GND terminals.
NOTE: Binary Output (BOx) terminals are triacs and are used with SC terminals instead of GND terminals.

BAC-9301 FCU (2-PIPE)		BAC-9301 FCU (4-PIPE)

**AO8 and BO5 are controlled simultaneously.

| *AO7 and BO4 are controlled simultaneously.

**AO8 and BO5 are controlled simultaneously.

BAC-9301 HPU| | BAC-9311 HPU
Inputs| Inputs
AI1| Space Sensor (on Room Sensor port)| AI1| Space Sensor (on Room Sensor port)
AI2| Space Setpoint Offset (on port)| AI2| Space Setpoint Offset (on port)
AI3/UI3| Discharge Air Temperature| AI3/UI3| Discharge Air Temperature
AI4/UI4| Outdoor Air Temp| AI4/UI4| Outdoor Air Temp
AI5/UI5| Space Humidity| AI5/UI5| Space Humidity
AI7/UI7| Analog Input #7| AI7/UI7| Analog Input #7
AI8/UI8| Analog Input #8| AI8/UI8| Analog Input #8
BI6/UI6| Fan| AI9| Duct Pressure (internal sensor)
| BI6/UI6| Fan
Outputs| Outputs
AO7/UO7| Analog Output #7| AO7/UO7| Analog Output #7
AO8/UO8| Analog Output #8| AO8/UO8| Analog Output #8
AO9/UO9| Economizer Output| AO9/UO9| Economizer Output
AO10/UO10| Analog Output #10| AO10/UO10| Analog Output #10
BO1| Fan Start – Stop| BO1| Fan Start – Stop
BO2| Stage 1 Compressor| BO2| Stage 1 Compressor
BO3| Stage 2 Compressor| BO3| Stage 2 Compressor
BO4| Reversing Valve| BO4| Reversing Valve
BO5| Auxiliary Heat| BO5| Auxiliary Heat
BO6| Binary Output #6| BO6| Binary Output #6
BAC-9301 RTU

Inputs
AI1| Space Sensor (on Room Sensor port)
AI2| Space Setpoint Offset (on port)
AI3/UI3| Discharge Air Temperature
AI4/UI4| Outdoor Air Temp
AI5/UI5| Space Humidity
AI7/UI7| Analog Input #7
AI8/UI8| Analog Input #8
BI6/UI6| Fan
|
Outputs
AO7/UO7| Analog Cooling Output
AO8/UO8| Analog Heating Output
AO9/UO9| Economizer Output
AO10/UO10| Analog Output #10
BO1| Fan Start – Stop
BO2| Cool Stage 1
BO3| Cool Stage 2
BO4| Binary Output #4
BO5| Heating Stage 1
BO6| Heating Stage 2
BAC-9311 RTU

Inputs
AI1| Space Sensor (on Room Sensor port)
AI2| Space Setpoint Offset (on port)
AI3/UI3| Discharge Air Temperature
AI4/UI4| Outdoor Air Temp
AI5/UI5| Space Humidity
AI7/UI7| Economizer Feedback
AI8/UI8| Analog Input #8
AI9| Duct Pressure (internal sensor)
BI6/UI6| Fan
Outputs
AO7/UO7| Analog Cooling Output
AO8/UO8| Analog Heating Output
AO9/UO9| Economizer Output
AO10/UO10| Analog Output #10
BO1| Fan Start – Stop
BO2| Cool Stage 1
BO3| Cool Stage 2
BO4| Binary Output #4
BO5| Heating Stage 1
BO6| Heating Stage 2
BAC-9311 VAV

REPLACEMENT PARTS

HPO-0055 Replacement Network Bulb Module for Conquest Controllers, Pack of 5
HPO-9901 Conquest Hardware Replacement Parts Kit

NOTE: HPO-9901 includes the following:

Terminal Blocks : DIN Clips

(1) Black 2 Position (2) Small
(2) Grey 3 Position (1) Large
(2) Green 3 Position
(4) Green 4 Position
(2) Green 5 Position
(2) Green 6 Position

NOTE: See the Conquest Selection Guide for more information about replacement parts and accessories.

IMPORTANT NOTICES

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 or related to the use of this document.
The KMC logo is a registered trademark of KMC Controls, Inc. All rights reserved.
The KMC Connect Lite™ app for NFC configuration is protected under United States Patent Number 10,006,654. Pat: https://www.kmccontrols.com/patents/.
TEL: 574.831.5250
FAX: 574.831.5252
EMAIL: info@kmccontrols.com

Specifications and design subject to change without notice