KMC Controls FlexStat BAC-120063CW-ZEC, Installation And Configuration Manual

BAC-120063CW-ZEC FlexStat 

     11 

Installation and Configuration Guide, Rev. G

Troubleshooting

•  For optimal temperature control, all spaces 

within a particular zone should be exposed to 

similar environmental factors (e.g., all border a 

perimeter wall or all be within insulated interior 

spaces). Otherwise, for example, depending on 

the weather, perimeter spaces may consistently 

need heating when interior spaces consistently 

need cooling.

•  The DAT sensor must be properly connected and 

configured. See 

Input Connections on page 6

and 

Configure the Application and Address on 

page 7

.

•  The Device Instance of the FlexStat should 

correspond with the Device Instance range of the 

SimplyVAVs. See 

Configure the Application and 

Address on page 7

.

•  Check the wiring. See 

Wiring Considerations on 

page 5

, 

Output Connections on page 5

, 

Input Connections on page 6

, 

Power Connec-

tion on page 6

, and 

Network Wiring on page 

6

.

•  Check EOL switches. See 

Network EOL (End-Of-

Line) Termination on page 7

.

•  See also 

Zone Status on page 10

.

•  See also 

Setpoints on page 8

.

•  See also 

Schedules on page 9

.

•  See also 

Zone Hysteresis (Changeover) on page 

10

.

•  See also 

Sequence of Operation on page 10

.

•  See the relevant parts of the Troubleshooting 

section in the 

FlexStat Operation Guide

.

Maintenance

Remove dust as necessary from the holes in the top 

and bottom. Clean the display with a soft, damp 

cloth and mild soap.

Customization

Additional customization can be done using KMC 

Connect, KMC Converge, or TotalControl. For ex-

ample, a fan status switch (such as a KMC 

CSE-110x

or a 

CSE-120x

) could be connected to IN3 (with the 

appropriate pull-up switch setting) and the following 

code could be run in Program 9 or 10.

REM FAN STATUS
REM A Normally Open dry contact 

switch is connected to AI3 (with 

pull-up switch set to 10K ohms)
REM BV16 shows Active when switch is 

closed (fan running) and Inactive 

when switch is open (not running)

IF

 AI3 < 0.5 

THEN

 BV16 = 1 

ELSE

 BV16 

= 0

NOTE:

  Set the program to Run on Cold Start, save 

it, and restart the FlexStat.

The value of BV16 (active or inactive) could then be 

displayed on a card in the KMC Commander inter-

face or a TotalControl graphics page.

Remote (BAC-5051E) Interface

The BAC-5051E BACnet router provides a means of 

remotely monitoring and changing the configuration 

of the zoning system with a web browser. For more 

information, see the 

BAC-5051E Router Application 

and Installation Guide

.