Trane Technologies X1351152701 Installation and operating instructions

Wired Temperature Sensors
Installation, Operation, and Maintenance
April 2020 BAS-SVX10F-EN
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.

©2020 Trane BAS-SVX10F-EN
Introduction
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as required. Your personal safety and the proper
operation of this machine depend upon the strict observance of these precautions.
The three types of advisories are defined as follows:
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTIONsIndicates a potentially hazardous situation which, if not avoided, could result in
minor or moderate injury. It could also be used to alert against unsafe practices.
NOTICE Indicates a situation that could result in equipment or property-damage only
accidents.
Important Environmental Concerns
Scientific research has shown that certain man-made chemicals can affect the earth’s naturally
occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the
identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine
and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all
refrigerants containing these compounds have the same potential impact to the environment.
Trane advocates the responsible handling of all refrigerants-including industry replacements for
CFCs and HCFCs such as saturated or unsaturated HFCs and HCFCs.
Important Responsible Refrigerant Practices
Trane believes that responsible refrigerant practices are important to the environment, our
customers, and the air conditioning industry. All technicians who handle refrigerants must be
certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the
requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the
equipment that is used in these service procedures. In addition, some states or municipalities may
have additional requirements that must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
WARNING
Proper Field Wiring and Grounding Required!
Failure to follow code could result in death or serious injury. All field wiring MUST be
performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE
and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field
wiring installation and grounding as described in NEC and your local/state electrical codes.
Failure to follow code could result in death or serious injury.

WARNING
Personal Protective Equipment (PPE) Required!
Failure to wear proper PPE for the job being undertaken could result in death or serious injury.
Technicians, in order to protect themselves from potential electrical, mechanical, and chemical
hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well
as the instructions below:
• Before installing/servicing this unit, technicians MUST put on all PPE required for the work
being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard
hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to
appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to the appropriate SDS
and OSHA/GHS (Global Harmonized System of Classification and Labeling of Chemicals)
guidelines for information on allowable personal exposure levels, proper respiratory
protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE
in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash
protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING,
DISCONNECTING, OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC
FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.
WARNING
Follow EHS Policies!
Failure to follow instructions below could result in death or serious injury.
• All Trane personnel must follow the company’s Environmental, Health and Safety (EHS)
policies when performing work such as hot work, electrical, fall protection, lockout/tagout,
refrigerant handling, etc. Where local regulations are more stringent than these policies,
those regulations supersede these policies.
• Non-Trane personnel should always follow local regulations.
Introduction
BAS-SVX10F-EN 3
Copyright
This document and the information in it are the property of Trane, and may not be used or
reproduced in whole or in part without written permission. Trane reserves the right to revise this
publication at any time, and to make changes to its content without obligation to notify any person
of such revision or change.
Trademarks
All trademarks referenced in this document are the trademarks of their respective owners.
Revision History
•Revised instructions on how to change the fan speed control.

Table of Contents
4BAS-SVX10F-EN
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Height Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation and Configuration: Display Sensor . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting the Back Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Wiring the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Configuring the Display Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Optional Configuration Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Replacing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installation: All Models Other Than the Display Sensor . . . . . . . . . . . . . . . . . . 20
Mounting the Back Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installing the COMM Module (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Changing the Setpoint Thumb Wheel (optional) . . . . . . . . . . . . . . . . . . . . . 24
Wiring the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Replacing the Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Changing Temperature Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Changing System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Changing Fan Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Selecting Temporary Occupancy (Timed Override) . . . . . . . . . . . . . . . . . . . 27
Service Pin Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Sensors with Occupied/Unoccupied Buttons . . . . . . . . . . . . . . . . . . . . . . 28
Display Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Star(*)/Double Star(**) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Sensors with Thumb Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Display Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Display Sensor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Changing Temperature Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Changing Heating and Cooling Temperature Settings (dual setpoint sys-
tems only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Changing System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Changing Fan Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table of Contents
BAS-SVX10F-EN 5
Requesting Temporary Occupancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Lock Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Error Codes (Display Sensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Display Sensor: Output Values—Failure and Default Modes of Operation 32
Measuring Output Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Display Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
All Models Other Than the Display Sensor . . . . . . . . . . . . . . . . . . . . . . . . 33
Cleaning the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Replacing the Thumb Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Temperature sensors with fan control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Temperature sensors with fan and system control . . . . . . . . . . . . . . . . . . . 40
Optional COMM module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Specifications and Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
CE Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6BAS-SVX10F-EN
General Information
This section provides a description of the wired temperature sensors, as well as part numbers and
dimensions.
Product Description
Note: The information in this manual applies to both factory and field installed versions of Trane
wired temperature sensors.
Trane®wired temperature sensors are compatible with any Trane unit controller that uses a
standard 10 kW temperature input. Temperature monitoring is standard on all models. Additional
features are available on some models:
• Fan control
•Systemcontrol
• Dual or single temperature setpoint control
• Occupancy (timed override) request function
• COMM module—Optional accessory that provides an RJ22 connection for a Trane service tool
for system communication. Must be ordered separately.
• Hot/cold setpoint thumb wheel—Optional accessory allows selecting a temperature setpoint by
color (red/blue for hot/cold) on thumbwheel, rather than by a number. Must be ordered
separately.
The display sensor (p/n X13790886) has an LCD display and includes an RJ11 (RJ22 compatible)
connection for a Trane service tool for system communication. The following features on this
sensor are configurable:
•Temperature units: Fahrenheit (ºF) or Celsius (ºC)
•Temperature resolution: 1.0, 0.5, or 0.1 degrees
•Ability to display setpoint only (zone temperature does not display)
•Single, dual, or no setpoint
•System settings: auto, off, cool, heat, emergency heat
•Deadband (heat/cool setpoint offset for dual setpoint systems)
•Fan settings: high, medium, low, auto, off
•Occupancy (timed override request) function
•Lockable settings to protect against unauthorized use
•Service pin request

BAS-SVX10F-EN 7
General Information
Part Numbers
The following table lists part numbers for each sensor type.
Sensor type
Features
Part number BAYSENS
Global
partsSetpoint
Fan
control System Occupancy LEDs
Temperature
sensors
Single
No No
Yes
No
X1351152701 BAYSENS074A SEN01447
No No X1351152801 BAYSENS077A SEN01448
Single No X1351152901 BAYSENS075A SEN01449
No Yes X1351153001 BAYSENS073A SEN01450
Temperature
sensors with fan
control
Single Off/Auto
No
Yes
No
X1379084501
NA
SEN01521
Single Off/Run Yes X1379085101 SEN01527
Single Off/Auto/
Low/High Yes X1379084801 SEN01524
Single
Off/Auto/
Low/Med/
High
No X1379084101 SEN01517
Single
Off/Auto/
Low/Med/
High
Yes X1379084201 SEN01518
Temperature
sensors with fan
and system control
Dual Auto/High Cool/Off/Auto/
Heat/Em Heat No Yes (4) X1379084701 BAYSENS109A SEN01523
Single Auto/High Cool/Off/Heat/
Em Heat No Yes (1) X1379085201 BAYSENS107A SEN01528
Dual Auto/High Cool/Off/Auto/
Heat No No X1379083701 BAYSENS108A SEN01513
Dual Auto/High Cool/Off/Auto/
Heat No Yes (4) X1379084601 BAYSENS110A SEN01522
Single Auto/High Cool/Off/Heat No No X1379083901 BAYSENS106A SEN01515
Single Low/High Cool/Off/Heat/
FanNo No X1379085001 NA SEN01526
Temperature
sensor with LCD
display(a)
(a) These sensors can be field configured to match the applicable unit controller options.
(b)
(b) Unit controller inputs for system status, fan status, and service required are not available on this sensor. If replacing a BAYSENS031A or a BAYSENS035A
sensor, and status indicators are required, replace with non-display sensor BAYSENS109A or BAYSENS110A.
Single No No Yes
No
X1379088601 NA SEN02076
Single
Off/On/
Auto/Low/
Med/High
No
No X1379088604 NA NA
Dual Auto/On Cool/Off/Auto/
Heat/Em Heat No X1379088605 BAYSENS135A NA
The following table lists part numbers for optional accessories.
Accessory Available for . . . Part number BAYSENS
Global
parts
COMM module (box of 12) All sensors other than the display sensor X1365146702 BAYCOMM005A CON01313
Setpoint thumb wheel: Hot/cold
(box of 12) Sensors with thumb wheels X1316105702 NA KNB00182

8BAS-SVX10F-EN
General Information
Dimensions
The following illustration provides specific dimension details. The dimensions are the same for all
models.
2.9 in (73.5 cm)
1.08 in (27.5 mm)
4.68 in (118.9 mm)
1.45 in (36.8 mm)
0.63 in (15.9 mm)
0.31 in (8 mm)
0.12 in (3 mm)
TYP R.07 in
(R1.9) mm)
3.39 in (86 mm)
2.48 in (63 mm)
2.62 in (66.5 mm)
TYP 0.24 in (6 mm)
Note: There is no center
mounting hole on the
display sensor.

BAS-SVX10F-EN 9
Pre-Installation
Pre-Installation
This section provides the following pre-installation information:
• Location considerations
• Height requirements
• Mounting surfaces
Location Considerations
Placement of the sensor is critical to proper operation. When selecting a location, avoid the
following:
• Areas of direct sunlight
• Areas in the direct airstream of air diffusers
• Exterior walls and other walls that have a temperature differential between the two sides
• Areas that are close to heat sources such as sunlight, appliances, concealed pipes, chimneys,
or other heat-generating equipment
• Drafty areas
• Dead spots behind doors, projection screens, or corners
• Walls that are subject to high vibration
• Areas with high humidity
• High traffic areas (to reduce accidental damage or tampering)
Height Requirements
The recommended maximum mounting height is 54 inches from the bottom of the back plate to
the floor. If a parallel approach by a person in a wheelchair is required, reduce the maximum height
to 48 inches.
Note: Consult section 4.27.3 of the 2002 ADA (Americans with Disability Act) guideline, and local
building codes, for further details regarding wheelchair requirements.
Mounting Surfaces
Using the hardware provided, mount the back plate to a flat surface such as sheetrock or plaster,
or an electrical junction box. The sensor must be mounted plumb for accurate temperature control
and to ensure proper air movement through the sensor.
• If mounting onto sheetrock or plaster, use the plastic threaded anchors (pre-drilling holes is not
usually necessary) and the two M3.5 x 20 mm mounting screws.
• For mounting onto an electrical junction box, use the two 6-32 x 3/4 in. screws.

10 BAS-SVX10F-EN
Installation and Configuration: Display Sensor
Installation and Configuration: Display Sensor
This section provides step-by-step installation instructions for the display sensor (see applicable
part numbers for the temperature sensor with LCD display on p. 7). For installation of all other
sensor models, see p. 20.
Read through the pre-installation information(p. 9) before proceeding with the installation.
Note: Before installing a wired sensor, ensure that a wire access hole is available at the sensor
location and the wire is accessible through the hole. The technician should assume that the
wires are attached to the appropriate unit controller, that there is continuity between the
sensor location and the controller, and that the wires are accurately labeled or identified by
color.
Mounting the Back Plate
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
NOTICE:
Equipment damage!
Applying excessive voltage to the sensor will permanently damage it.
Note: Refer to the illustration below when installing the sensor.
1. Shut off power to the unit controller.
2. Remove the cover by firmly pressing the thumb tab at the bottom of the cover and pulling the
cover away from the back plate.
Note: If present, remove the security screw before removing the cover.
Security screw

BAS-SVX10F-EN 11
Installation and Configuration: Display Sensor
3. Feed the wires through the opening in the back plate.

12 BAS-SVX10F-EN
Installation and Configuration: Display Sensor
4. Hold the back plate against the mounting surface and mark the screw locations.
5. Secure the back plate to the mounting surface using the included hardware.
Wiring the Sensor
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
NOTICE:
Equipment damage!
Applying excessive voltage to the sensor will permanently damage it.
To wire the sensor to the unit controller:
1. Ensure that the wires are connected to the appropriate terminals at the unit controller.
Note: Ensure that the GROUND (terminal 10) and the SIGNAL COMMON (terminal 2) wires
share a common ground with the transformer
2. Insert each wire into the appropriate location in the terminal block (see the table in Figure 1,
p. 13). Tighten the terminal screw.
Note: The wire connections can be made while the terminal block is either on the circuit board,
or removed from it.
3. Perform a pull test to ensure that the wires are properly connected.
4. If you want the sensor to read an external thermistor, reset the jumper to the external position
as shown in Figure 1, p. 13.
5. If the terminal block was removed from the circuit board, attach it to the pins inside the sensor
cover (Figure 1, p. 13).

Figure 1. Attaching the terminal block to the pins on the circuit board
11 24 VAC/VDC
10 (GROUND)
9
8
7COMM–
6COMM+
5 HEAT SETPOINT (HSP)
4 SYS/FAN MODE (MODE)
3 SETPOINT
2 SIGNAL COMMON (COMMON)
1 ZONE TEMPERATURE (ZONE TEMP)
S2 REMOTE TEMP SENSOR
S1 REMOTE TEMP SENSOR
]
]
RJ11 (RJ22 compatible)
connection for a Trane service tool
If jumper is positioned as
shown here, the display
shows the local temperature
sensor reading (default).
If jumper is positioned as
shown here, the display
shows the external
temperature sensor reading.
Jumper is installed from factory to
display local temperature reading. To
enable external sensor option, move
jumper to “Ext” location.
Local
Ext
BAS-SVX10F-EN 13
Installation and Configuration: Display Sensor
6. Push the excess wire into the wall cavity and plug it with nonflammable insulation to prevent
drafts from affecting the sensor.
Important: Do not coil excess wire inside the back plate.
Configuring the Display Sensor
The configuration of the display sensor determines which system features can be accessed and
changes can be made by the tenant (for example, changes to cooling/heating mode, setpoint, or
fan speed. Verify system and associated unit features before configuring the sensor.
The building owner or operator may choose to limit tenant access to certain features. This can be
done through configuration. Or, if a sensor is configured to match all controllable features of the
associated equipment, the locking feature can be used to restrict the tenant from making changes.
Configuration Procedure
To configure settings on the sensor, follow this procedure in the order presented.

14 BAS-SVX10F-EN
Installation and Configuration: Display Sensor
1. Press the configuration button for 3 seconds.
The display will change to configuration mode. When the sensor is in configuration mode, a wrench
symbol appears on the display and the menus are separated by lines, as illustrated below.
1. Press the center button on the keypad to begin the configuration process.
2. Configure the sensor options in the order shown in the table.
• Press or to scroll to the next selection (as illustrated).
Configuration button
Center button

BAS-SVX10F-EN 15
Installation and Configuration: Display Sensor
• Press or to move to the next menu (as illustrated).
Setting Configuration options
Temperature
• Choose Fahrenheit or Celsius
• Choose the degree resolution
(whole degrees, half degrees, or
tenths of degrees)
Setpoint
Deadband (available for dual
setpoint system only)
Note: Deadband refers to the
minimum difference between
the heating and cooling
setpoints.
System
a) Single setpoint
System (continued)
b) Dual setpoint
c) No setpoint
. . . .
.
.
dual setpoint
no
i
single
i
.
heat/cool setpoint offset
(1.8˚F – 10.8˚F, 1˚C – 6˚C)
heat/cool setpoint offset
2ºF – 10.8ºF, 1.1ºC – 6ºC
emergency heat/
heat/cool/off
heat/cool/
auto/off
emergency heat/
heat/cool/auto/off
no system
options enabled

16 BAS-SVX10F-EN
Installation and Configuration: Display Sensor
1. Review the display to ensure that you have selected the correct configuration options.
2. To return the display to operating mode, press the configuration button (see step 1, p. 14).
Note: The sensor will revert to operating mode if no buttons are pressed for 10 minutes.
Fan
Note: Not all fan options are
available for all systems.
Occupancy (timed override)
Setting Configuration options
auto/off/low
med/high
auto/off/
low/high
auto/off
off/high (on) off/low/high off/low/
med/high
no fan options
enabled
auto/high (on)
The example shows a display that has been configured for:
•Dual setpoint
•Temperature units (Fahrenheit)
•Temperature resolution to tenths of a degree
•System settings: Emergency Heat, Heat, Cool, Off
•Fan settings: Auto or On
•Occupied/unoccupied option enabled

BAS-SVX10F-EN 17
Installation and Configuration: Display Sensor
The following example shows a configured display in operating mode.
If an error code exists, it appears at the bottom of the display between the occupancy symbols,
as shown below. See “Error codes,” p. 31, for error code definitions.
Optional Configuration Features
Displaying Setpoint or Temperature
You can configure the sensor to display either the temperature (default) or setpoint. To select either
option:
1. Verify that the sensor is in operating mode and at the home screen.
2. Press the up and down arrows for 3 seconds. The arrow indicates setpoint display, as shown
in the illustration.
Locking or Unlocking Settings
You can lock or unlock the setpoint, system, or fan setting to prevent changes.
To lock or unlock a setting:
Display shows the following:
•Temperature units (Fahrenheit)
•Temperature resolution to tenths of a degree
•System setting: Cooling
•Fan setting: Auto
•Occupied/unoccupied option enabled
Arrow
indicates
setpoint is
shown on
display

18 BAS-SVX10F-EN
Installation and Configuration: Display Sensor
1. Verify that the sensor is in operating mode and at the home screen.
2. Choose a setting to lock or unlock:
•Select the setpoint by pressing the up or down arrow.
Setpoint
•Select the system menu by pressing the center button. Use the left or right arrow to choose
the setting.
System menu
•From the system menu press the down arrow to select the fan menu. Use the left or right
arrow to choose the setting.
Fan menu
3. Press the left and right arrows for 4 seconds. The lock symbol will appear on the display
to indicate that the setting has been locked.
Note: If you try to access a feature that is locked, the locked symbol appears on the display. 
If you press a keypad button to try change a locked setting, the locked symbol flashes.
Replacing the Cover
To replace the cover:
1. Hook the cover over the top of the back plate. Apply light pressure to the bottom of the cover
until it snaps in place.

BAS-SVX10F-EN 19
Installation and Configuration: Display Sensor
2. Secure the cover by installing the security screw into the bottom of the cover.
Security screw

NOTICE:
Equipment damage!
Applying excessive voltage to the sensor will permanently damage it.
20 BAS-SVX10F-EN
Installation: All Models Other Than the Display Sensor
Installation: All Models Other Than the Display Sensor
This section provides step-by-step installation instructions for all sensor models other than the
display sensor. (For installation of the display sensor, see p. 10.) Read through the pre-installation
information before proceeding with the installation.
Note: Before installing a wired sensor, ensure that a wire access hole is available at the sensor
location and the wire is accessible through the hole. The technician should assume that the
wires are attached to the appropriate unit controller, that there is continuity between the
location and the controller, and that the wires are accurately labeled or identified by color.
Mounting the Back Plate
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
1. Shut off power to the unit controller.
2. Remove the cover by firmly pressing the thumb tab at the bottom of the cover and pulling the
cover away from the back plate.