KMC Controls BAC-19 FlexStat Series - Damper;Economizer Does Not Work; Fan Does Not Run; Relay (External) Does Not Work; Relay (Internal) Does Not Work

BAC-19xxxx FlexStat Application Guide 22 AG200824A
• Using KMC software, check the outputs.
Check that the output object (e.g., BO4) is not
congured as Out Of Service.
• Check for proper output object conguration.
• Check that the output is on.
• See Wiring Issues on page 23.
• Restart the FlexStat.
Updating Firmware Issues
NOTE: Use KMC software to update rmware
over the network. See the BAC-190000
Series FlexStats data sheet for
versions of KMC software that support
the FlexStat.
Finding and Selection Issues
• To view and download rmware updates from
FlexStat product pages on the KMC Controls
web site, you must log in with a valid user
name and password.
• Use rmware designated for over-the-
network updates. Firmware meant for the
HTO-1104 Firmware Upgrade Kit will not work
over the network.
• Ensure rmware for the correct model is
selected. If rmware for the wrong model
is accidentally installed, the outputs will not
match the applications/conguration on the
display.
NOTE: Backing up the existing settings and
rmware image before or during the
upgrade process is recommended
practice.
Malfunction after Firmware Update
• Restart the FlexStat.
• Check the application conguration.
NOTE: Restoring to the factory defaults and
reconguring might be needed if how
Damper/Economizer Does Not Work
• Enable the economizer in the System section
of Settings.
• Connect to the correct output.
Fan Does Not Run
NOTE: The animated fan icon is coupled with
BV1 in the packaged programming (not
the actual fan output terminal).
• Select Occupied mode from the Home screen
by pressing the icon.
• Override the fan to On from the Home screen
by pressing the icon.
• See Wiring Issues on page 23.
• Check that the appropriate application is
selected.
• Check the fan.
• Restart the FlexStat.
Relay (External) Does Not Work
• See Analog Output Does Not Work on page
21.
• See Relay (Internal) Does Not Work on page
22.
Relay (Internal) Does Not Work
CAUTION
Relays are for Class-2 voltages (24
VAC) only. Do not connect line voltage
to the relays!
NOTE: Max. output current is 1 A for individual
relays @ 24 VAC/VDC or a total of 1.5
A per bank of 3 relays (relays 1–3 and
4–6). Do not attach a device that draws
current that exceeds the corresponding
value. Relays are NO, SPST (Form “A”).
• Check the current draw of load. Substitute an
output device that draws less current.