User guide

BAC-12xx63/13xx63/14xx63 Series FlexStat 5 Installation Guide, Rev. C
STE-1416 Duct Averaging Temp. Sensor
CSE-1102 Air Differential
Pressure Switch
MEP-5372/7252/7552/7852 Fail-Safe Actuators
XEE-6311-075/6311-100 Transformer
STE-1451 Outside Air Temp. Sensor
VEP-45xxB895/VEB-43xxxBDL Valves with MEP-5372 Fail-Safe Actuators
REE-3211 Multi-Voltage Relay
XEE-6311-075 Transformer
NOTE: EITHER FAN STATUS (FST) OR
DISCHARGE AIR TEMP (DAT) CAN
BE USED ON IN2, BUT NOT BOTH.
AHU LAYOUT
STE-1402 Duct
Sensor, Type III
Applications
Air Handler Unit (AHU)—
Modulating Heat and Modulating Cool
Input Terminals AHU Input Connections BACnet Objects
IN9 Opt. Remote CO
2
Sensor* AI9
IN8 AI8
IN7 Opt. Remote Temp. Sensor* AI7
IN4 Opt. Outside Air Temp. (OAT)** AI4
IN3 Opt. Mixed Air Temp. (MAT)** 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).
**When using the optional Outside Air Damper, MAT/OAT inputs must
also be connected.
Output
Terminals
AHU Output Connections
(Modulating)
BACnet
Objects
Analog 9 Outside Air Damper (OAD/RTD)* AO9
GND Ground (for analog output terminals 7–9)
Analog 8 Heating Valve (HTV) AO8
Analog 7 Cooling Valve (CLV) AO7
Relay 6 BO6
SC 4–6
Relay 5 BO5
Relay 4 BO4
Relay 3 BO3
SC 1–3 24 VAC (for relay terminals 1–3)
Relay 2 BO2
Relay 1 Fan BO1
*If optional Outside Air Damper is used, must also have MAT/OAT inputs.
NOTE: See also the RTU section
for 2-stage options.
 APPLICATION
DEGREESSCALE:°F
APP:
ADDITIONALSETUP
AIRHANDLER
 ADDITIONALSETUP
DAMPER
FAN
HUMIDITY
OPTIMUMSTART
SENSORS