BAC-12xx
36
/13xx
36
/14xx
36
Series FlexStat
6
Installation Guide, Rev. E
FCU—4 Pipe, Modulating
FCU 4-PIPE MODULATING LAYOUT
CSE-1102
Air Differential Pressure Switch
VEB-43 Valves with
MEP-4002V Actuators
SET SWITCHES FOR...
OPERATION: CCW
FAIL-SAFE: CW
INPUT RANGE: 2–10 VDC
SET SWITCHES FOR...
OPERATION: CW
INPUT RANGE: 0–10 VDC
SET SWITCHES FOR...
OPERATION: CCW
INPUT RANGE: 0–10 VDC
XEE-6311-050 Transformer
REE-3112 Control Relay
XEE-6311-050 Transformer
REE-3211 or CVR11C-0/LD96200 Multi-Voltage Relays
VEB-43 Fail-Safe Valve with MEP-4x52V Actuator
Output
Terminals
FCU Output
Connections
BACnet
Objects
Analog 9
AO9
GND
Ground (for
analog output
terminals 7–9)
Analog 8
Heat Valve
(HTV)
AO8
Analog 7
Cool Valve
(CLV)
AO7
Analog 6
Optional
Humidification
Valve (HUM or
HUMV)
AO6
GND
Ground (for
analog output
terminals 4–6)
Analog 5
AO5
Analog 4
AO4
Relay 3
Fan 3
BO3
SC 1–3
24 VAC (for
relay terminals
1–3)
Relay 2
Fan 2
BO2
Relay 1
Fan 1
BO1
APPLICATION
DEGREES SCALE: °F
APP:
OPT: 4–PIPE
ADDITIONAL SETUP
FAN COIL
ADDITIONAL SETUP
FAN
HUMIDITY
OPTIMUM START
SENSORS
VALVE
Input Terminals
FCU Input Connections
BACnet Objects
IN9
Opt. Remote CO
2
Sensor*
AI9
IN8
AI8
IN7
Opt. Remote Temp. Sensor*
AI7
IN4
AI4
IN3
AI3
GND
Ground
IN2
Optional Fan Status (FST)*
AI2
*Fan Status (FST) and (not shown on the diagram) remote temp./CO
2
sensors are optional inputs. Set pull-up resistor switch positions
appropriately (see the Input Connections section).
NOTE: Do not use REE-3211/
CVR11C-0/LD96200
relays
with
analog
outputs! See Output
Connections on page 3.
NOTE: In firmware earlier than R2.1.0.18, an option
for a DAT on IN2 was available for a built-
in trend log. For later firmware, use KMC
Connect or TotalControl to create a custom
trend if this is desired.
