BAPI External Sensor Catalog Page
BA/RµPM with External Sensor
Installation and Operating Instructions
14803_ins_rupm_fan_ext_sens
Product Identication and Overview
The RµPM Room Unit with an External Sensor displays the temperature where
the external sensor is located. The unit can also provide setpoint adjustment,
occupancy override, fan speed and mode control for the controller. The unit can
also provide the temperature measurement value to the controller as a 3K, 10K-2,
10K-3 or 10K-3(11K) Thermistor. If the controller requires a sensor other than the
four listed above, then that sensor must be installed as a second sensor in the
same location as the external sensor (see Figs. 6 & 8).
The unit is available with an optional 3.5mm (1/8”) or RJ11 Comm. Jack and
a Test and Balance Switch. The Setpoint is displayed for a short time after an
adjustment and can be programmed to display as an offset (i.e. -2, -1, 0, 1, 2) or
as a value within a specied temperature range (i.e. 65 to 80 °F). The Override is
a momentary signal congured in parallel with the Sensor or Setpoint. Fan Speed
or Mode are provided as a single analog output (resistive) and include appropriate
LED indicators on the face of the unit.
rev. 06/26/15
Fig. 1:
RuPM
Dimensions
Fig. 2: 3-Button with
Setpoint & Override
Fig. 3: 5-Button with
Fan Speed Control
Fig. 4: 6-Button with
Fan Speed Control
Fig. 5: 4-Button with
Fan & Mode Control
Fig. 6: 5-Button with
Fan & Mode Control
Mounting (on two sides of the same wall)
Fig 7:
RuPM Display
Unit and External
Sensor mounted
on opposite sides
of the same wall.
1. Mount two junction boxes on opposite sides of the same wall. One side of the wall is the wall plate external sensor
and the other side of the wall is where the RuPM display unit will be installed. Place the boxes close enough together
that the wire on the wall plate and the display unit can reach one another.
2. Secure the RuPM display unit base to the junction box using the #6-32 x 1/2 inch mounting screws provided.
3. Run the wires from the wall plate through the junction box into the junction box for the RuPM display unit. Secure the
wall plate to the junction box with the #6-32 x 1/2 inch mounting screws provided making sure the foam on the back of
the wall plate makes a good seal with the wall.
4. Terminate the unit according to the Termination guidelines on page 1.
5. Attach RuPM Cover by latching it to the top of the base, rotating the cover down and snapping it into place.
6. Secure the RuPM cover by backing out the lock-down screws using a 1/16” Allen wrench until they are ush with the
bottom of the cover.
Specications subject to change without notice.
24 Inch Limit
Note: The External
Sensor could be a Wall
Plate sensor (shown) or
a Return Air Sensor.
(All external sensors are
ordered seperately.)
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BA/RµPM with External Sensor
Installation and Operating Instructions
14803_ins_rupm_fan_ext_sens
Termination
BAPI recommends using twisted pair of at least 22AWG and sealant lled 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 of NEC class 1, NEC class 2, NEC class 3 or with
wiring used to supply highly inductive loads such as motors, contactors and relays. BAPI’s tests show that uctuating and
inaccurate signal levels are possible when AC power wiring is present in the same conduit as the signal lines.
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 will void the warranty.
Terminal 4, 5 or 6 Button Units 3 Button Units
1 ..............Temperature Sensor Output .......Temperature Sensor Output
2 ..............*Ground ......................................*Ground
3 ..............Setpoint Output ..........................Setpoint Output
4 ..............Fan Speed/Mode Output ............Not Connected
5 ..............External Sensor Input .................External Sensor Input
6 ..............External Sensor Input .................External Sensor Input
7 ..............Shield for External Sensor ..........Shield for External Sensor
8 ..............**Power ......................................**Power
rev. 06/26/15
Fig 8: RµPM Circuit Board
Must be
a 10K-2
Thermistor
Notes:
*Terminal 2 (Common or Ground) is the common for the power, temperature
sensor, fan speed and setpoint.
**Power requirements are shown in the Specications Section.
The Override is factory set to be in parallel with the temperature sensor (Terminals
1 & 2) or the setpoint (Terminals 3 & 2). The Override conguration is NOT eld
selectable.
Fig 9:
Can be any sensor
specied for the
controller.*
Dual External Sensor
Wiring Example
(Common Ground
conguration is required on
RuPM units.)
(This could also be
a Return Sensor)
*
*Note: A
or 10K-3(11K) Thermistor
temperature output is
available from Terminal 1. If
the controller can take any
of these as its temperature
input, then Terminal 1 can
be connected to the Sensor
Input of the controller and
the second external sensor
is not needed.
3K, 10K-2, 10K-3
Specications subject to change without notice.
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