KMC FLEXSTATTM BAC-10000 - Manual (Page 20)

BAC-10000 Series 20 Operation Guide, Rev. J
Fan Does Not Run
NOTE: The animated fan icon is coupled with
BV18 in the packaged programming (not
the actual fan output terminal).
• Select Occupied mode from the Home Menu—
see H/C, Fan, Occupancy, and Override on page 3 .
• Override the fan to On from the Home Menu—
see H/C, Fan, Occupancy, and Override on page 3 .
• See Wiring Issues on page 21 .
• Check that the appropriate application is se-
lected—see (Advanced) Application Options on
page 5 .
• Check the fan configuration—see Fan Setup on
page 5 .
• Restart the FlexStat. After a low limit alarm is
generated, the fan will not run until after the
FlexStat is restarted. (See Resetting the FlexStat
on page 14 .)
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, 4–6, and
7–9). Do not attach a device that draws
current that exceeds the corresponding
value. Relays are NO, SPST (Form “A”).
• Check current draw of load. Substitute an output
device that draws less current.
• Check that the output is on.
• See
Wiring Issues on page 21 .
• Restart the FlexStat.
• If Restore Factory has just been performed, see
the Note and Cautions in Restore Factory on
page 15 .
Output, Fan, and Relay Issues
Analog Output Does Not Work
CAUTION
Do not mistakenly connect 24 VAC to an analog
output ground. This is not the same as a relay’s
switched common. See the backplate’s terminal
label for the correct terminal.
NOTE: The maximum current of an analog output
is 20 mA @ 12 VDC. Excessive loads will
be clamped at the maximum. Relays may
chatter or fail to latch if they need more
current than the maximum allowed. KMC
REE-3111/3112 relays, for example, could be
connected to the analog outputs, but REE-
3211/3221/3213 relays would not operate
reliably with analog outputs because their
required power exceeds the FlexStat’s
capacity. (REE-3211/3221/3213 relays could,
however, be used with the FlexStat relays
and a separate power source.)
• Check current draw of load—it must be 20 mA or
less. Substitute an output device that draws less
current.
• Check that the output is on.
• See
Wiring Issues on page 21 .
• See also Fan Does Not Run on page 20 .
• If Restore Factory has just been performed, see
the Note and Cautions in Restore Factory on
page 15 .
• If the firmware has just been upgraded, firm-
ware for the wrong model type may have been
installed (e.g., BAC-1xx63 firmware accidentally
installed in a model BAC-1xx36). In the About
menu, ASV may simply read “CUSTOM” instead
of something like “BAC_1xx36 R1.1.0.5” as it
normally would have done. If so, repeat the firm-
ware upgrade and ensure that the correct type of
firmware is selected for the connected model.
NOTE: ASV in the About menu will also show
CUSTOM if any built-in Control Basic
program (1–5) is not running or has auto-
run disabled.