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BAC-12xx36/13xx36/14xx36 Series FlexStat 1 Installation Guide, Rev. C

Installation Guide (3/6 Outputs)

BAC-12xx36/13xx36/14xx36 Series FlexStat

™

3 Relays, 6 Analog Outputs, 6 External Inputs

Quick Start 1

Mounting 1

Connections and Wiring 2

Wiring Considerations 2

Network Wiring 2

MS/TP EOL (End-Of-Line) Termination 2

Input Connections 3

Output Connections 3

Power Connection 4

Conﬁguration 4

Applications Notes and Cautions 4

Maintenance 4

Applications 5

FCU (Fan Coil Unit)—2 Pipe, Modulating 5

FCU—4 Pipe, Modulating 6

AHU (Air Handler Unit)—1 Heat and 1 Cool 7

AHU—1 or 2 Heat and Modulating Cool 8

AHU—Modulating Heat and 1 or 2 Cool 9

AHU—Modulating Heat and Modulating Cool 10

AHU—Additional Options 11

Important Notices 11

Additional Resources 11

MountingQuick Start

CAUTION

This document is for 3-relay, 6-analog-output,

6-external-input BAC-12xx36/13xx36/14xx36 series

only. THESE MODELS ARE NOT COMPATIBLE

WITH THE BACKPLATES OF OLDER BAC-10000

SERIES FLEXSTATS (WITH ONLY 3 EXTERNAL

INPUTS)! If replacing an older 3-input FlexStat,

replace the backplate as well. See other installation

guides for other models.

To select and use a FlexStat in an application:

1. Selecttheappropriatemodel for the intended

application and options (see the FlexStat Data

Sheet).

2.

Mountandwiretheunit(seethisInstallation

Guide).

3.

Congure/programtheunit (see the FlexStat

Operation and Application Guides).

4.

Ifnecessary,troubleshootanyissues (see the

FlexStat Operation Guide).

5.

Operatetheunit (see the FlexStat Operation

Guide).

NOTE: This document gives basic mounting,

wiring, and setup information only. For

conguration, programming, operation,

and other information, see the KMC

Controls web site for the latest documents.

Illustration 1—Dimensions and Installation

EIA-485 data

port (for quick

network access)

Terminal blocks on

backplate (rotated on

BAC-13xxxx/14xxxx)

Models

Dimensions in Inches (mm)

A B C

BAC-12xxxx (shown) 1.125 (29)

5.551

(141)

4.192 (106)

BAC-13xxxx/14xxxx 1.437 (36.5) 5.192 (132)

Foroptimumtemperaturesensorperformance,

theFlexStatmustbemountedonaninteriorwall

andawayfromheatsources,sunlight,windows,

airvents,andaircirculationobstructions(e.g.,

curtains,furniture).Additionally,foramodelwith

anoccupancysensoroption,installitwhereitwill

haveunobstructedviewofthemosttypicaltrac

area. (See the FlexStat Application Guide for more

information.)

If replacing an existing thermostat, label wires as

needed for reference when removing the existing

thermostat.

1. Complete rough-in wiring at each location prior

to thermostat 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 handy-box.

BAC-12xxxx models mount directly on vertical 2

x 4 inch boxes, but they require an HMO-10000/

HMO-10000W wall mounting plate for horizontal

or 4 x 4 boxes. BAC-13xxxx/14xxxx models mount

directly on any of those types of boxes.

5. Make the appropriate connections to the terminal

blocks. (See the Connections and Wiring section.)

6. Place 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.

Cover locking hex screws

Embossed “UP” indicator

Summary of content (11 pages)

PAGE 1
BAC-12xx36/13xx36/14xx36 Series FlexStat™ 3 Relays, 6 Analog Outputs, 6 External Inputs Installation Guide (3/6 Outputs) Quick Start Mounting For optimum temperature sensor performance, the FlexStat must be mounted on an interior wall and away from heat sources, sunlight, windows, air vents, and air circulation obstructions (e.g., curtains, furniture). Additionally, for a model with an occupancy sensor option, install it where it will have unobstructed view of the most typical traffic area.
PAGE 2
Connections and Wiring Wiring Considerations MS/TP EOL (End-Of-Line) Termination • Because of the many connections (power, network, inputs, outputs, and their respective grounds or switched commons), be sure wiring is well planned before installation of conduit! • Make sure that conduit for all wiring has adequate diameter for all necessary wiring.
PAGE 3
NOTE: SC = Switched (relay) Common NOTE: IN1 and IN5–6 are reserved for internal sensors GND IN7 +B Inputs IN4 –A IN3 GND IN2 Common/–/C Phase/ /R NOTE: For more information on wiring specific applications (AHU and FCU), see the Applications section starting on page 5. (These applications are the packaged programs selectable from the Advanced > Application menu in the BAC-1xxx36 models.) See also the FlexStat Application Guide.
PAGE 4
For example, (discontinued) KMC REE-3211 relays would exceed the FlexStat’s analog output capacity, but they can be used with the FlexStat’s internal relays 1–3 as shown in the following applications pages. (Use a Core Components CVR11C-0/LD96200 in the REE-3211’s place in those applications.) NOTE: Applications on pages 5–11 are the packaged programs selectable from the Advanced > Application menu in the BAC-1xxx36 (only) models. Other FlexStat models have other applications.
PAGE 5
Applications FCU (Fan Coil Unit)—2 Pipe, Modulating APPLICATION DEGREES SCALE: °F APP: FAN COIL OPT: 2–PIPE ADDITIONAL SETUP Output Terminals FCU Output Connections Analog 9 ADDITIONAL SETUP FAN OPTIMUM START SENSORS VALVE GND AO9 Ground (for analog output terminals 7–9) Analog 8 Analog 7 BACnet Objects AO8 Valve (VLV) Analog 6 AO7 AO6 GND XEE-6311-050 Transformer Analog 5 AO5 Analog 4 AO4 Relay 3 SC 1–3 VEP-45/ VEB-43 Valves with MEP-4002 0–10 VDC Actuators Input Terminals STE-1454 Stra
PAGE 6
FCU—4 Pipe, Modulating Input Terminals IN9 APPLICATION DEGREES SCALE: °F APP: FAN COIL OPT: 4–PIPE ADDITIONAL SETUP NOTE: ADDITIONAL SETUP FCU Input Connections BACnet Objects Opt. Remote CO2 Sensor* AI9 IN8 FAN HUMIDITY OPTIMUM START SENSORS VALVE IN7 Do not use REE-3211/CVR11C-0/LD96200 relays with analog outputs! See Output Connections on page 3. AI8 Opt. Remote Temp.
PAGE 7
AHU (Air Handler Unit)—1 Heat and 1 Cool Input Terminals APPLICATION DEGREES SCALE: °F APP: AIR HANDLER OPT: 1H/1C ADDITIONAL SETUP NOTE: ADDITIONAL SETUP DAMPER FAN HUMIDITY OPTIMUM START SENSORS IN9 AHU Input Connections BACnet Objects Opt. Remote CO2 Sensor* AI9 IN8 Do not use REE-3211/CVR11C-0/LD96200 relays with analog outputs! See Output Connections on page 3. AI8 IN7 Opt. Remote Temp. Sensor* AI7 IN4 Opt. Outside Air Temp. (OAT)** AI4 IN3 Opt. Mixed Air Temp.
PAGE 8
AHU—1 or 2 Heat and Modulating Cool APPLICATION DEGREES SCALE: °F APP: AIR HANDLER OPT: 2H/MOD C ADDITIONAL SETUP NOTE: Input Terminals IN9 ADDITIONAL SETUP DAMPER FAN HUMIDITY OPTIMUM START SENSORS STAGING AHU Input Connections BACnet Objects Opt. Remote CO2 Sensor* AI9 IN8 Do not use REE-3211/CVR11C-0/LD96200 relays with analog outputs! See Output Connections on page 3. AI8 IN7 Opt. Remote Temp. Sensor* AI7 IN4 Opt. Outside Air Temp. (OAT)** AI4 AI3 IN3 Opt. Mixed Air Temp.
PAGE 9
AHU—Modulating Heat and 1 or 2 Cool Input Terminals APPLICATION DEGREES SCALE: °F APP: AIR HANDLER OPT: MOD H/2 C ADDITIONAL SETUP NOTE: IN9 ADDITIONAL SETUP DAMPER FAN HUMIDITY OPTIMUM START SENSORS STAGING AHU Input Connections BACnet Objects Opt. Remote CO2 Sensor* AI9 IN8 Do not use REE-3211/CVR11C-0/LD96200 relays with analog outputs! See Output Connections on page 3. AI8 IN7 Opt. Remote Temp. Sensor* AI7 IN4 Opt. Outside Air Temp. (OAT)** AI4 AI3 IN3 Opt. Mixed Air Temp.
PAGE 10
AHU—Modulating Heat and Modulating Cool APPLICATION DEGREES SCALE: °F APP: AIR HANDLER OPT: MOD H/MOD C ADDITIONAL SETUP NOTE: Input Terminals IN9 ADDITIONAL SETUP DAMPER FAN HUMIDITY OPTIMUM START SENSORS VALVE AHU Input Connections BACnet Objects Opt. Remote CO2 Sensor* AI9 IN8 Do not use REE-3211/CVR11C-0/LD96200 relays with analog outputs! See Output Connections on page 3. AI8 IN7 Opt. Remote Temp. Sensor* AI7 IN4 Opt. Outside Air Temp. (OAT)** AI4 IN3 Opt. Mixed Air Temp.
PAGE 11
AHU—Additional Options CAUTION This document is for 3-relay, 6-analog-output, 6-external-input BAC-12xx36/13xx36/14xx36 series only. THESE MODELS ARE NOT COMPATIBLE WITH THE BACKPLATES OF OLDER BAC-10000 SERIES FLEXSTATS (WITH ONLY 3 EXTERNAL INPUTS)! If replacing an older 3-input FlexStat, replace the backplate as well of the new FlexStat will be damaged. XEE-6311-075 Transformer Additional Resources The latest support files are always available on the KMC Controls web site (www.kmccontrols. com).