Manual

BAC-12xx36/13xx36/14xx36 Series FlexStat 6 Installation Guide, Rev. C
FCU—4 Pipe, Modulating
FCU 4-PIPE MODULATING LAYOUT
CSE-1102
Air Differential Pressure Switch
VEP-45/VEB-43 Valves with
MEP-4002 0–10 VDC Actuators
STE-1402
Duct Sensor, Type III
XEE-6311-050 Transformer
VEP-45/VEB-43 Fail-Safe Valve with
MEP-5372 2–10 VDC Actuator
REE-3112 Control Relay
XEE-6311-050 Transformer
REE-3211 or CVR11C-0/LD96200 Multi-Voltage Relays
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
Humidication
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 FST or DAT* AI2
*Fan Status (FST), Discharge Air Temperature (DAT), 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.