BAC-19xxxx FlexStat Application Guide
24 AG200824A
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.
CAUTION
Relays are for Class-2 voltages (24
VAC) only. Do not connect line voltage
to the relays!
CAUTION
BAC-19xxxx FlexStats are
NOT COMPATIBLE with the
backplates of older BAC-
10xxx/12xxxx/13xxxx/14xxxx series
FlexStats! If replacing an older
FlexStat, replace the backplate as
well.
Analog 9
GND 7–9
Analog 8
Analog 7
Relay 6
SC 4–6
Relay 5
Relay 4
Relay 3
SC 1–3
Relay 2
Relay 1
Outputs
NOTE: Values Shown Are Approximate!
BACnet
MS/TP
Network
Inputs
24 VAC
NOTE:
SC = Switched (Relay) Common,
Should Have the Phase Side of
24 VAC Connected
(Wiring Inputs
and Outputs
Dependent on
Application)
24 VAC
}
}
10K Ohms (Thermistor)
or
O Ohms (Closed Contact)
0.1–0.2 VDC (If Network
Token Passing is Present)
}
24 VAC
(Jumper to
Turn Device
On Manually)
NOTE:
BAC-19xxx63C Backplate Terminals
Shown with FlexStat Removed;
Outputs and Inputs Vary According
to Application
Resistance
Dependent
on Device
Terminal Voltages and Resistances with FlexStat REMOVED from Backplate
+B
–A
IN7
IN6
GND
IN5
IN4
IN3
GND
IN2
Common/–/C
Phase/ /R
