Installation & Operating Instructions
BAPI-Stat 4 Sensor, w/Display, Button Setpoint, Fan or System Mode Control
BA/BS4M Temperature Sensor
Specifications subject to change without notice.
rev. 01/18/16
25188_ins_BS4M
2 of 8
Termination
BAPI recommends using twisted pair of at least 22AWG and sealant filled connectors for all wire connections. Larger
gauge wire may be required for long runs. All wiring must comply with the National Electric Code (NEC) and local codes.
Do NOT run this device’s wiring in the same conduit as AC power wiring. BAPI’s tests show fluctuating and inaccurate
signals are possible when AC power wiring is in the same conduit as the signal lines. If you are experiencing any of these
difficulties, please contact your BAPI representative
.
Fig. 6:
BAPI-Stat 4M Circuit Board
TERMINAL
DESCRIPTION
GND ........................Power Supply Ground (Common to the controller)
V+ ...........................Power Supply Hot (See specifications for voltage
details)
FAN.........................Fan Speed/System Mode (Resistive Output)
EXT OVR ................BAPI-Man Occ/Un-Occ indicator Input.
Ground terminal to fill in the BAPI-Man icon for
Occupied.
SEN1 & SEN2 ........Sensor output per order (resistive). No polarity. *If
the unit is a common ground configuration (-CG),
see “Grounding Note” below.
SET1 & SET2 .........A) Setpoint output per order (resistive). *If the unit
is a common ground configuration (-CG), see
“Grounding Note” below.
B) Setpoint output per order (voltage). SET1 is
“+”, SET2 is “-”. *If the unit is a common ground
configuration (-CG), see “Grounding Note”
below.
OVR1 & OVR2........Override output (Dry contact) The contact can be
ordered as a momentary shunt across the sensor
(-N) or as a momentary shunt across the setpoint
(-P) or as a separate momentary contact (-J) or
as a separate latching contact (-L#). *If the unit
is a common ground configuration (-CG), see
“Grounding Note” below.
RSEN1 & RSEN2 ...Remote sensor option (-ES). No polarity. *If the
unit is a common ground configuration (-CG),
see “Grounding Note” below. A 10K-2 thermistor
sensor must be ordered separately and the
temperature value is displayed on the LCD. Note:
If a temperature reading is needed at the controller,
then a second sensor must be ordered and wired
independently.
*Grounding Note:
Common Ground (-CG) or Differential Ground (-DF) configurations are selected per order. The Differential Ground
configuration (-DF) indicates that SEN2, SET2, OVR2 and RSEN2 must all be wired separately (No internal common
connection). The Common Ground configuration (-CG) indicates that SEN2, SET2, OVR2 and RSEN2 are connected to
GND internally (All internally common). This is true of all Common Ground units except when ordered with the Override as
a Latching Switch option (-L#). In this case, OVR2 is isolated and not internally connected to SEN2, SET2 and RSEN2.
BAPI recommends wiring the product with power disconnected. Proper supply voltage, polarity and wiring
connections are important to a successful installation. Not observing these recommendations may damage the
product and void the warranty.
