Install Instructions

BAC-12xx63/13xx63/14xx63 Series FlexStat 7 Installation Guide, Rev. E
STE-1451 Outside Air Temp. Sensor
XEE-6311-075 or XEE-6311-100 Transformer
IF BOTH
RC AND RH TERMINALS ARE PRESENT:
WIRE RC TO SC 1-3 AND RH TO SC 4-6.
IF ONLY ONE “R” TERMINAL IS PRESENT:
WIRE BOTH SC 1-3 AND SC 4-6 TO R.
RTU 2H/2C LAYOUT
CSE-1102 Air Differential Pressure Switch
STE-1402 Duct Sensor, Type III
SET SWITCHES FOR...
OPERATION: Opposite of Fail-Safe
FAIL-SAFE: In Direction Actuator
Rotates to Open Return Damper
INPUT RANGE: 2–10 VDC
SET SWITCHES FOR...
OPERATION: Opposite of Fail-Safe
FAIL-SAFE: In Direction Actuator
Rotates to Close Outside Air Damper
INPUT RANGE: 2–10 VDC
MEP-4552 or MEP-7x52 Actuators
Enable/Disable Economizer
(Instead of Modulating OAD/RTD)
Roof Top Unit (RTU)—
1 or 2 Heat and 1 or 2 Cool
Output
Terminals
Typical Terminal
Codes
RTU Output Connections
(1 or 2 H and 1 or 2 C)
BACnet
Objects
Analog 9 Modulating OAD/RTD* AO9
GND
Ground
(for analog output terminals 7–9)
Analog 8 AO8
Analog 7 AO7
Relay 6 Enable/Disable Economizer* BO6
SC 4–6 RH/R 24 VAC (for relay terminals 4–6)
Relay 5 W2 Heat 2 (Optional) BO5
Relay 4 W1 Heat 1 BO4
Relay 3 Y2 Cool 2 (Optional) BO3
SC 1–3 RC/R 24 VAC (for relay terminals 1–3)
Relay 2 Y1 Cool 1 BO2
Relay 1 G Fan BO1
*If optional modulating Outside Air Damper or enable/disable Economizer is used,
DAT/OAT inputs must also be connected.
APPLICATION
DEGREES SCALE: °F
APP:
OPT: 1H/1C
ADDITIONAL SETUP
ROOF TOP
ADDITIONAL SETUP
DAMPER
FAN
HUMIDITY
OPTIMUM START
SENSORS
Input Terminals RTU 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. Discharge Air Temp. (DAT)** AI3
GND Ground
IN2 Optional FST* 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, DAT/OAT inputs must
also be connected.
NOTE: For MAT sensor use with
rmware earlier than R2.1.0.18,
see the FlexStat Economizer
Change of MAT to DAT Service
Bulletin available on the KMC
Partners web site.