KMC Controls FlexStat BAC-120063CW-ZEC Installation And Configuration Manual
BAC-120063CW-ZEC FlexStat
Zoning Equipment Controller
Installation and Configuration Guide
MountingContents
™
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
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 boom 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.
A
C
Embossed “UP” indicator
Additional Resources ............................................12
Important Notices ................................................. 12
B
NOTICE
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
SENSITIVE DEVICES
Illustration 1—Dimensions and Installation
BAC-120063CW-ZEC FlexStat 1 Installation and Configuration Guide, Rev. G
A B C
1.125 (29) 5.551 (141) 4.192 (106)
EIA-485 data
port (for quick
network access)
Terminal blocks
on backplate
Cover locking hex screws
Dimensions in Inches (mm)
Application Overview
Return Air
Supply Air
from RTU
Optional Bypass Damper
MS/TP Network
24 VAC
Roof Top Unit
(RTU)
CSP-4702
To HI
Port
Optional Static Pressure Signal and Setpoint
STE-140x
Temp
Sensor
Input from DAT
Output to RTU
SSS-101x Flow Sensor
1/4"
Tubing
Displayed
RTU Controller—MAC 20, Device Instance 1000000
VAV B ox
SSS-101x Flow
Sensor
STE-140x Temp
Sensor
Supply Air
To Low Pressure Port
on Pitot Tube
OR
to H or L Port on
SSS-100x Sensor
(Mounted Perpendicular
to Air Flow)
MS/TP Network
DAT
FlexStat
Supply Air
to Room
Supply Air
from RTU
1/4" Tubing
Ethernet Cable (Up to 75 Feet Long)
STE-8x01 Room Temp Sensor
and Configuration Tool
Zone 1—MAC 3, Device Instance 1000001
MS/TP Network
SSS-101x Flow
Sensor
1/4" Tubing
Ethernet Cable (Up to 75 Feet Long)
STE-8x01 Room Temp Sensor
and Configuration Tool
SimplyVAV
24 VAC
(Alternate STE-601x Room
Temperature Sensor)
VAV B ox
STE-140x Temp
Sensor
Supply Air
to Room
SimplyVAV
24 VAC
(Alternate STE-601x Room
Temperature Sensor)
Zone 16—MAC 19, Device Instance 1000016
Illustration 2—Sample Networked RTU Installation
BAC-120063CW-ZEC FlexStat 2 Installation and Configuration Guide, Rev. G
Roof Top Unit (RTU)
(1 or 2 Heat and 1 or 2 Cool)
XEE-6111-050 or XEE-6112-50 Transformer
CAUTION
Relays are for Class-2 voltages (24 VAC) only. Do not
connect line voltage to the relays!
Do not mistakenly connect 24 VAC to an analog
output ground.
STE-140x Duct Sensor, Type III
Optional Outside Air Damper
AO9 or Relay 6
GND or SC
Optional Heating/Cooling Coil Valve
AO8
GND
Optional Static Pressure Reading/Setpoint from/to CSP-4702
GND
AO7
IN9
TERMINALS
IF BOTH RC AND RH TERMINALS ARE PRESENT:
WIRE RC TO SC 1-3 AND RH TO SC 4-6.
IF ONLY ONE “R” TERMINAL IS PRESENT:
WIRE BOTH SC 1-3 AND SC 4-6 TO R.
NOTE: Althoughtypicalterminalcodeleersare
shown, check the schematics of your unit
for wiring details!
APPLICATION
DEGREES SCALE: °F
APP:
ROOF TOP
OPT: 1H/1C
ADDITIONAL SETUP
ZONE
Input
Terminals
IN9 Static Pressure Feedback (Optional) AI9
IN8 (Unused in this application) AI8
IN7 (Unused in this application) AI7
IN4 (Unused in this application) AI4
IN3 (Unused in this application) AI3
GND Ground
IN2 DAT * AI2
*NOTE: The DAT sensor is congured for IN2 in the ADVANCED >
APPLICATION > ADDITIONAL SETUP > SENSORS menu.
Output
Terminals
Typical
Terminal
Codes
RTU Input Connections
RTU Output Connections
(1 or 2 H and 1 or 2 C)
BACnet
Objects
BACnet
Objects
Analog 9 O. A. Damper (Optional) AO9
Ground
Optional Network
From
Previous
Network
Device
To
Next
Network
Device
RTU
Terminals
GND
Analog 8 Heat or Cool Valve (Optional) AO8
Analog 7 Static Pressure Setpoint (Optional) AO7
Relay 6 O. A. Damper (Optional) BO6
SC 4–6 RH/R 24 VAC (for Relay terminals 4–6)
Relay 5 W2 Heat 2 (Optional) BO5
Relay 4 W1 Heat 1 BO4
Relay 3 Y2 Cool 2 (Optional) BO3
SC 1–3 RC/R 24 VAC (for Relay terminals 1–3)
Relay 2 Y1 Cool 1 BO2
Relay 1 G Fan BO1
NOTE: Connections above are for rmware R2.0.0.4 and later. Earlier
rmware had the optional static pressure setpoint on Analog Output
9 instead of Analog Output 7, and it did not have the heating/cooling
coil valve option (Analog Output 8) or outside air damper (economizer)
option (Analog Output 9 or Relay 6).
(for Analog Output terminals 7–9)
Illustration 3—RTU Application Connections
BAC-120063CW-ZEC FlexStat 3 Installation and Configuration Guide, Rev. G
Heat Pump Unit (HPU)
1 or 2 Compressors with Auxiliary and Emergency Heat
XEE-6111-050 or XEE-6112-50 Transformer
STE-140x Duct Sensor, Type III
Optional Outside Air Damper
AO9
GND
Optional Heating/Cooling Coil Valve
AO8
GND
Optional Static Pressure Reading/Setpoint from/to CSP-4702
GND
AO7
IN9
TERMINALS
NOTE: Wire to “O” terminal if
reversing valve is energized in
cooling mode; wire to “B”
terminal if reversing valve is
energized in heating mode.
HPU
Terminals
From
Previous
Network
Device
Optional Network
To
Next
Network
Device
Illustration 4—HPU Application Connections
CAUTION
Relays are for Class-2 voltages (24 VAC) only. Do not
connect line voltage to the relays!
Do not mistakenly connect 24 VAC to an analog
output ground.
NOTE: Althoughtypicalterminalcodeleersare
shown, check the schematics of your unit
for wiring details!
APPLICATION
DEGREES SCALE: °F
APP:
HEAT PUMP
OPT: 1 STAGE
ADDITIONAL SETUP
ZONE
Input
Terminals
HPU Input Connections
IN9 Static Pressure Feedback (Optional) AI9
IN8 (Unused in this application) AI8
IN7 (Unused in this application) AI7
IN4 (Unused in this application) AI4
IN3 (Unused in this application) AI3
GND Ground
IN2 DAT * AI2
*NOTE: The DAT sensor is congured for IN2 in the ADVANCED >
APPLICATION > ADDITIONAL SETUP > SENSORS menu.
Output
Terminals
Typical
Terminal
Codes
HPU Output Connections
Analog 9 O. A. Damper (Optional) AO9
GND
(for Analog Output terminals 7–9)
Ground
Analog 8 Heat or Cool Valve (Optional) AO8
Analog 7 Static Pressure Setpoint (Optional) AO7
Relay 6 W2/E Emergency Heat (Optional) BO6
SC 4–6 R 24 VAC (for Relay terminals 4–6)
Relay 5 W Auxiliary Heat (Optional) BO5
Relay 4 Y2 Compressor 2 (Optional) BO4
Relay 3 Y1 Compressor 1 BO3
SC 1–3 R 24 VAC (for relay terminals 1–3)
Relay 2 O/B
Reversing Valve
(see O/B Note in schematic)
Relay 1 G Fan BO1
NOTE: Connections above are for rmware R2.0.0.4 and later. Earlier
rmware had the optional static pressure setpoint on Analog Output
9 instead of Analog Output 7, and it did not have the heating/cooling
coil valve option (Analog Output 8) or outside air damper (economizer)
option (Analog Output 9).
BACnet
Objects
BACnet
Objects
BO2
BAC-120063CW-ZEC FlexStat 4 Installation and Configuration Guide, Rev. G
Loading...