KMC Controls FlexStat BAC-120063CW-ZEC User Manual

BAC-120063CW-ZEC FlexStat 1 Installation and Configuration Guide, Rev. G
Installation and Configuration Guide
BAC-120063CW-ZEC FlexStat
™
Zoning Equipment Controller
Contents ..................................................................1
Mounting ................................................................1
Application Overview .............................................2
Roof Top Unit (RTU) ................................................ 3
Heat Pump Unit (HPU) ........................................... 4
Connections and Wiring ..........................................5
Wiring Considerations .........................................5
Output Connections ............................................5
Input Connections ...............................................6
Power Connection ...............................................6
Network Wiring ..................................................6
Network EOL (End-Of-Line) Termination ............ 7
Configuration and Operation .................................. 7
Configure the Application and Address ...............7
Setpoints .............................................................8
Heat/Cool, Fan, Occupancy, and Override .........9
Schedules ............................................................9
Trends .................................................................9
Sequence of Operation .........................................10
Zone Hysteresis (Changeover) ...........................10
Zone Status .......................................................10
Troubleshooting ....................................................11
Maintenance .........................................................11
Customization .......................................................11
Remote (BAC-5051E) Interface .............................11
IoT (KMC Commander) Interface ..........................12
Additional Resources ............................................12
Important Notices .................................................12
MountingContents
1. Complete rough-in wiring at each location prior
to the FlexStat’s installation. Cable insulation
must meet local building codes.
CAUTION
To prevent mounting screw heads from touching
the circuit board in the thermostat, use only the
mounting screws supplied by KMC Controls.
Using other screws may damage the FlexStat.
Do not turn screws in farther than necessary to
remove the cover.
2. If the cover is locked on the backplate, turn the
hex screws in the boom and top of the FlexStat
CLOCKWISE until they (just) clear the cover.
(See Illustration 1.) Pull the cover away from the
backplate (mounting base).
3. Route the wiring through the backplate.
4. With the embossed “UP” and arrows toward the
ceiling, fasten the backplate to a wall electrical
box. This FlexStat mounts directly on vertical 2 x
4 inch boxes but requires an HMO-10000W wall
mounting plate for horizontal or 4 x 4 boxes.
5. Make connections to the terminal blocks. (See
Connections and Wiring on page 5.)
6. Push the FlexStat cover over the backplate while
being careful not to pinch or dislodge any
wiring. Back the hex screws (counterclockwise)
out of the brackets until they engage the FlexStat
cover and hold it in place.
Illustration 1—Dimensions and Installation
A
B
EIA-485 data
port (for quick
network access)
Terminal blocks
on backplate
Dimensions in Inches (mm)
A B C
1.125 (29) 5.551 (141) 4.192 (106)
Cover locking hex screws
Embossed “UP” indicator
C
NOTICE
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
SENSITIVE DEVICES

KMC Controls FlexStat BAC-120063CW-ZEC Specifications

General

Model	BAC-120063CW-ZEC
Input Voltage	24 VAC
Temperature Range	32°F to 122°F (0°C to 50°C)
Operating Temperature	32°F to 122°F (0°C to 50°C)
Communication Protocol	BACnet MS/TP
Display	LCD
Enclosure Rating	NEMA 1
Controller Type	FlexStat
Outputs Type	2 Analog

Summary

Installation and Configuration Guide

Mounting

Details on how to physically install the FlexStat unit to a wall, including wiring and cover attachment.

Application Overview

RTU Controller Configuration

Diagram and explanation for connecting a FlexStat to a Roof Top Unit (RTU) controller.

Zone 1 Configuration

Diagram and explanation for connecting a FlexStat to a Zone 1 controller.

Zone 16 Configuration

Diagram and explanation for connecting a FlexStat to a Zone 16 controller.

Roof Top Unit (RTU) Wiring

RTU Input Connections

Details on connecting input sensors and signals to the RTU controller.

RTU Output Connections

Details on connecting output actuators and devices to the RTU controller.

Heat Pump Unit (HPU) Wiring

HPU Input Connections

Details on connecting input sensors and signals to the HPU controller.

HPU Output Connections

Details on connecting output actuators and devices to the HPU controller.

Connections and Wiring

Wiring Considerations

Essential advice on planning conduit, wire sizing, and using multiple conductors for connections.

Output Connections

Details on connecting devices to the FlexStat's output terminals.

Power Connection

Input Connections

Details on connecting passive and active input devices to the FlexStat.

Network Wiring

Instructions for connecting the FlexStat to an MS/TP network using three-conductor cable.

Network EOL Termination

Input Pull-Up Switches

Configuration of input pull-up switches for thermistors and voltage devices.

EOL Switches

Setting the End-Of-Line termination switches for MS/TP network operation.

Configuration and Operation

Configure Application and Address

Steps to select the application, configure settings, and set the device address.

Configuration Details

Device Instance and MAC Address

Setting the BACnet Device Instance and MS/TP MAC address for network communication.

Setpoints

Adjusting heating and cooling DAT setpoints and duct static pressure setpoint.

Heat/Cool, Fan, Occupancy, Override

Schedules

Modifying the factory default schedule for occupied and unoccupied times.

Trends

Overview of preconfigured trend logs for monitoring system data.

Zone Hysteresis

Zone Status

Displaying connected zone status, calls for heating/cooling, and duct status pressure.

Sequence of Operation

Explanation of how the FlexStat determines RTU/HPU heating or cooling mode by majority rule.

Troubleshooting

Maintenance

Instructions for cleaning the FlexStat unit, including dust removal and display cleaning.

Customization

Methods for customizing FlexStat functionality using KMC software and programming.

Remote Interface

Using the BAC-5051E router for remote monitoring and configuration of the zoning system.

IoT Interface

Additional Resources

References to other documents and web pages for more detailed information on the FlexStat and related products.

Important Notices

Disclaimers regarding document content, product changes, and FCC compliance.