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
4 of 8
FRONT PANEL BUTTONS
SETPOINT:
When pressed, the setpoint will display for three to four seconds. When pressed again, the setpoint will change
in one degree increments. It will only change within the setpoint range that was ordered.
OVERRIDE:
When the override button is pressed, the BAPI-Man will be displayed as “Solid” for 3-5 seconds and the override
output will shunt or short for 3 seconds depending on the override option selected. (-N Option = Momentary
Temperature Sensor Shunt to <15Ω, -P Option = Momentary Setpoint Shunt to <15Ω, -J Option = Momentary Override as
a Separate Shorting Contact Output, -L# Option = Override as a Latching Switch, See “Latching Override Operation” on
pg. 5.) If the occupied input (EXT OVR) terminal is grounded, then the BAPI-Man will stay filled in, indicating an occupied
state. If the input is open, then the BAPI-Man will revert to hollow, indicating unoccupied (or the icon will disappear
completely if there has never been a ground on the EXT OVR terminal).
MODE:
Cycles through ‘HEAT’, ‘OFF’ and ‘COOL’.
FAN:
Cycles through ‘AUTO’, ‘ON’ and Fan Speed (see Fig. 12).
A display is standard for all BA/BS4M
units. It is available with an optional
override button, setpoint buttons, fan
control or system control buttons or any
option combination. Fig. 10 shows a fully
featured sensor.
NUMERICAL DISPLAY:
The default display shows current
temperature. When the up/down buttons
are pushed, then the display will show
and adjust the current setpoint and hold
the display for 3 to 4 seconds. The unit
can also be set up to display setpoint
only or for setpoint lockout. See “Optional
Technicians Adjustments” section.
BAPI-MAN ICON:
The BAPI-Man Icon shows the status of
the room – Solid for Occupied, Hollow for
“Unoccupied” (Fig. 11).
Note:
The unit must receive a
confirmation (ground) signal on the “EXT OVR”
terminal for the BAPI-Man to remain visible on the
screen. Pressing the Override button will light the
BAPI-Man icon; however, if no confirmation signal is
received, then the BAPI-Man will go blank (disappear)
after 5 seconds.
Upon receiving a first confirmation (ground) signal
on the “EXT OVR” terminal, the BAPI-Man will show
occupied (Solid). The BAPI-Man will then show
unoccupied (Hollow) whenever the confirmation signal
is removed and occupied when the signal is returned.
The only way to blank the BAPI-Man from the display
at this point is to cycle power.
Front Panel & Control Descriptions
Fig. 10:
BAPI-Stat 4M unit with Override, Setpoint, Fan
& System Buttons.
Note:
BAPI-Stat 4M shown with five buttons. Two,
three or five buttons may be present.
Occupied or Unoccupied Icon
Fan and Speed Indicator
Heat Mode
Cool Mode
Automatic System Mode
System Mode Button
Override Button
Fan Speed Button
Engineering Units
Temperature Display
in .5 Increments
Override On
Override Off
Setpoint Up/Down
Buttons
Fig. 12:
Fan Speed
Indicator
Fan Speed
Low
Fan Speed
Medium
Fan Speed
High
Hollow
equals
“Unoccupied”
Fig. 11:
BAPI-Man Icon
Solid
equals
“Occupied”
