Carrier SYSTXZNSMS01 User manual

Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
Safety Considerations
Improper installation, adjustment, alteration, service, maintenance, or
use can cause explosion, fire, electrical shock, or other conditions which
may cause death, personal injury or property damage. Consult a
qualified installer, service agency or your distributor or branch for
information or assistance. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this product.
Refer to the individual instructions packaged with the kits or accessories
when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and
work gloves. Have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings and cautions included in literature
and attached to the unit. Consult local building codes and the current
edition of the National Electrical Code (NEC) NFPA 70. In Canada,
refer to the current editions of the Canadian Electrical Code CSA C22.1.
Recognize safety information. When you see this symbol on the unit
and in instructions or manuals, be alert to the potential for personal
injury. Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards, which will result in severe
personal injury or death. WARNING signifies hazards, which could
result in personal injury or death. CAUTION is used to identify unsafe
practices, which may result in minor personal injury or product and
property damage. NOTE is used to highlight suggestions which will
result in enhanced installation, reliability, or operation.
Introductions
Smart Sensors are optional replacements for Remote Room Sensors used
with communicating Zoning systems (see equipment Product Data Sheet
for compatibility with this Smart Sensor). It provides a temperature
display on a touch screen to adjust the desired temperature within the
zone. It also displays outdoor temperature and indoor humidity. When
used with a Communicating System Control - FAN, HOLD and HOLD
UNTIL features are available.
Installation Considerations
Any zone may use a Smart Sensor. The Smart Sensor can be “home run”
wired directly to the Damper Control Module, or “daisy chained” from
the wall control or another Smart Sensor via 4-wire ABCD
communication bus. Ordinary thermostat wire is recommended;
however, solid conductor, stranded, or shielded wire may be used. Use
22 AWG or larger for normal wiring applications. Continuous wire
lengths over 100 ft. should use 20 AWG or larger. Plan the connection of
each Smart Sensor to provide easiest wiring route.
NOTE: Whenever possible, it is suggested to always “home run” wires
back to the Damper Control Module for convenience of troubleshooting.
Using a “pig-tailed” connection, or a field supplied terminal block may
be helpful in achieving proper wire termination at the Damper Control
Module.
A Smart Sensor may now be used to control Zone 1. In addition, a
Remote Room Sensor may also be used in the same zone. If a Remote
Room Sensor is applied in the same zone, the Remote Room Sensor has
temperature priority over the Smart Sensor.
A200265
Fig. 1 – Smart Sensor SYSTXZNSMS01
Installation
Step 1 – Select Smart Sensor Location
Sensor should be mounted:
• Approximately 5 ft. (1.5m) from floor.
• Close to center of zone, preferably on inside partitioning wall.
• On section of wall without pipes or ductwork.
• Where wiring can be routed to it within wall. Avoid running directly
next to other AC power.
Sensor should NOT be mounted:
• Close to a window, on outside wall, or next to a door leading to the
outside.
• Exposed to direct light and heat from a lamp, sun, fireplace, or other
temperature radiating object which may cause a false reading.
• Close to or in direct airflow from supply registers and return-air
grilles.
• In areas with poor air circulation, such as behind a door or in an
alcove.
• Do not run wires next to AC power lines.
Step 2 – Install Smart Sensor
1. Turn OFF all power to unit.
2. If an existing thermostat or sensor is being replaced:
a. Remove existing device from wall.
b. Disconnect wires from existing device, 1 at a time. Be careful
not to allow wires to fall back into wall.
c. Discard or recycle old device.
d. If 4 wires exist in wall, they may be used. If not, plan and route
wiring to connect with either the Damper Control Module, or
User Interface. Multiple Smart Sensors may be daisy chained
together, but somewhere chain must connect to either Damper
SYSTXZNSMS01
Smart Sensor for Zoning
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing sensor, turn off all power to unit. There may be more
than 1 power disconnect.

SYSTXZNSMS01: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
Control Module or the Communicating wall control. (Smart
Sensor daisy chain wire limit is 100 ft.)
Recommended connection is:
A - Green = Data A
B - Yellow = Data B
C - White = 24vac (com)
D - Red = 24vac (hot)
NOTE: It is not mandatory that the above color code be used, but each
ABCD connection in the system MUST be wired consistently.
3. To mount Smart Sensor, remove rear mounting base. Route wires
through hole in mounting base and level base against wall.
4. Mark wall through 2 mounting holes and drill two 3/16-in. holes.
Secure assembly to wall with 2 anchors and screws provided,
making sure all wires properly extend through opening.
5. Adjust length and routing of thermostat wire to reach each terminal
entry on the connector. Strip 1/4-in. of insulation from each wire
and properly connect to A-B-C-D.
6. Push any excess wire into the wall. Seal hole in wall to prevent any
air leaks. Leaks can affect Smart Sensor operation.
7. Attach Smart Sensor to the mounting base by lining up the plastic
guides and gently snapping assembly together.
Step 3 – Setup and Checkout
Smart Sensor Setup
After successful communications with the Master Thermostat has
occurred, the screen shall change to the Home Screen. However, if the
Zone Address has never been set, the Enter Zone Address Screen is
displayed instead with an initial zone number of 2.
A200274
Use the up/down buttons to select the correct zone address number 1
through 8. If only one Damper Control Module exists, the zone address
selection will only be 1 through 4. Once the zone number is selected,
press the save button to store the zone address and exit the setup menu.
The Smart Sensor is ready to operate.
Backlighting
The screen backlighting will energize whenever a button is pressed. The
backlighting will de-energize after 5 - 30 (default 15) seconds of no push
button activity (selectable from the Settings button after pressing the
menu button). To access the backlighting screen touch Menu from the
main screen, then backlight button.
Backlight Screen is used to set the backlight intensity in Active and
Dormant backlight modes. The blue Active Backlight Wheel is used to
adjust the backlight intensity when the thermostat is in an active state.
The purple Dormant Backlight Wheel is used to adjust backlight
intensity when the thermostat is in a dormant state (not being viewed or
adjusted by the end user). Adjustment is made by placing a finger on the
wheel and dragging the wheel up or down. Alternatively a tap at the top
of the wheel or the bottom of the wheel shall adjust the setpoint by one
number.
Fan Mode
Swiping left to right from the main screen will show the fan mode
screen. The “Fan Screen” is used to allow you to select the fan mode for
this thermostats zone. Pressing one of the Left Arrow Button or Right
Arrow Button shall scroll through the fan modes of AUTO or OFF,
LOW, MED and HIGH. AUTO model will operate the fan only when the
system is heating or cooling that zone. LOW, MED and HIGH modes
will run continuously at that speed until you switch the zone back to
AUTO Fan Mode.
Changing Zone Address
To change an existing zone address, enter the setup menu by swiping
from Left to Right on the Home Screen to display the Fan Screen,
pressing and holding the Fan button for 6 seconds, and then pressing on
the Zone Address Line. Use the up/down buttons to select the correct
zone address and then press “Done” and exit the setup menu. If no
buttons are pressed for approximately 30 minutes, the screen will
automatically save and exit back to a normal display.
To ensure that all changes are recognized by the main control, perform
the “Full Installation” function in the Installation & Service Menu of the
Touch Control after zone addresses are changed.
Temperature Up/Down Arrows
Use the TEMP up/down arrows to change a zone temperature setpoint.
The “HEAT TO” or the “COOL TO” setpoints will increment or
decrement accordingly. If not in a “HOLD” mode, changing the setpoint,
when used with the User Interface wall control, will cause the Override
timer to be displayed (i.e. 2-hours). If used with the main System
Control, changing the setpoint will cause a HOLD UNTIL/OVERRIDE
with a default time of approximately 3 hours from the current time to be
displayed. Pressing the HOLD UNTIL/OVERRIDE button displays the
Select Time Mode Screen that allows the Override type to be changed to
SCHEDULED (no override), HOLD, UNOCCUPIED (when used with
the User Interface wall control only), or to keep it a HOLD
UNTIL/OVERRIDE.
Hold Until Time Screen
Pressing the OVERRIDE (when used with the User Interface wall
control only), or HOLD UNTIL (when used with the main System
Control) button will display the Override Timer screen. When used with
either wall control, the Override timer or default time can be increased or
decreased by using the up/down buttons. The buttons can be used to
raise or lower the Override timer or the default time in 15-minute
increments up to a maximum of 24 hours. Pressing the DONE button
will return back to the HOME screen.
NOTE: If the wall control is configured for non-programmable
operation, the Smart Sensor will ignore HOLD and Override functions at
the Smart Sensor.
Select Time Mode Screen
Pressing the HOLD, HOLD UNTIL/OVERRIDE, SCHEDULED, or
OCCUPIED (when used with the User Interface wall control only)
(when shown in the middle of the main screen) button will cause the
Override Type screen to be displayed. Pressing the HOLD button will
cause the system to use the active (displayed) temperature setpoints
indefinitely. Pressing the SCHEDULED button cancels any type of
override and the system resumes normal programming schedules. When
used with the User Interface wall control, pressing the UNOCCUPIED
CAUTION
!
ELECTRICAL OPERATION HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Improper wiring or installation may damage the Smart Sensor. Check to
make sure wiring is correct before proceeding with installation or
turning on unit.

SYSTXZNSMS01: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
3
button will cause “UNOCCUPIED” to be displayed and the unoccupied
temperature settings will be displayed.
NOTE: The communication System Control does not include an
“unoccupied” mode.
System Off
When the OFF mode is selected on the Main System Control the Smart
Sensor will show “SYSTEM OFF” in the middle of the display screen.
The end user will be unable to operate the system from the Smart Sensor.
Keypad Lock
The Smart Sensor can be locked by going to the menu from the main
screen, then lockout. Lockout is used to prevent unauthorized changes
via the touch screen interface. All touch interaction is locked out until
the proper unlock code is entered. After 5 failed attempts at unlocking
the thermostat, more attempts shall not be allowed for a 5 minute period.
Vacation
When Vacation Mode gets set from the Master Thermostat and this state
transfers to the Smart Sensor, VACATION will be displayed below the
indoor temperature and the Heat and Cool Setpoints and Fan State shall
change to the vacation settings. A lock icon shall appear to the right of
the VACATION text for 15 minutes and the up/down buttons shall be
removed. After the 15 minutes elapses, the up/down buttons shall appear
again and an override of the vacation setpoints will be allowed. The
middle of the screen shall display Vacation when active.
Error Display
The middle of the screen shall display the following errors when they
occur. COM ERROR (Communication Error) will be displayed if the
Smart Sensor cannot send or receive communication data with the
Communicating System Control. Check ABCD wiring and Zone
address.
SYST ERROR (System Error or Malfunction) will be displayed if a
system critical error is active at the Communicating System Control.
Check fault history at the wall control. TEMP ERROR (temperature
reading error) will be displayed if the Smart Sensor cannot receive a
reading from the on-board sensor.
A04135
Fig. 2 – Typical Smart Sensor Wiring Diagram
A200273
Fig. 3 – Backplate
* ABCD Connections are in Parallel with each other.
Smart Sensors and Equipment may be connected in any combination.
For easier troubleshooting, the installer may elect to use one terminal block
for user interface and smart sensor connections, and the other for equipment connections.
NOTE:
DAMPER CONTROL MODULE
ZONES 1-4
ABCD
RED
GREEN
YELLOW
WHITE
SMART SENSOR(S)
TO USER INTERFACE, AND/OR
DAISY CHAIN
OPTION
TO OTHER
SMART SENSORS
IF AVAILABLE
TO EQUIPMENT OR
ACCESSORY CONNECTIONS
A
B
C DRED
COMMUNICATION
BUS
*
GREEN YELLOW WHITE
A
B
C DRED
GREEN YELLOW WHITE
ABCD
RED
GREEN
YELLOW
WHITE
ABCD
RED
GREEN
YELLOW
WHITE
ABCD
RED
GREEN
YELLOW
WHITE
TO EQUIPMENT, AND/OR
DAMPER CONTROL MODULE
(ZONES 5-8)

© 2020 Carrier. All rights reserved.
A Carrier Company
Edition Date: 06/20 Catalog No: IM-SYSTXZNSMS-01
Replaces: ZONE-03SI, II-ZONESMS-04
SYSTXZNSMS01: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4
Smart Sensor Operation
The Smart Sensor allows control and changing of zone temperature
setpoints. Continuous FAN selection is available; AUTO, LOW, MED,
HIGH. Other features include the scrolling banner showing Outdoor
Temperature and Indoor Relative Humidity. Smart Sensor Functions also
include; HOLD and UNOCCUPIED settings.
Changing Desired Temperature
• The current zone temperature will be displayed on the screen.
• Press the up/down arrows for HEAT TO or COOL TO to change the
setpoints.
A200266
• The default time for temporarily overriding the temperature schedule
is 2:00 HRS as indicated by the text in the lower center of the screen.
• Pressing the OVERRIDE (User Interface wall control) / HOLD
UNTIL (main System control) button displays the Select Time Mode
Screen where the type of Override can be changed to HOLD
(permanent length of time), OVERRIDE/HOLD UNTIL (specified
time length), SCHEDULED (removes any override), or
UNOCCUPIED (User Interface wall control only).
A200275
A200276
• Temporary override time can be changed in 15-minute increments by
pressing the OVERRIDE or HOLD UNTIL button to increase or
decrease the override timer.
A200277
NOTE: Override will not appear if programming has been turned off.
A200270
Continuous Fan Adjustment
• From the main screen swipe right to left to get to the fan menu screen.
You will be able to scroll through the following: AUTO, LOW, MED,
HIGH.
• When AUTO is selected, zone airflow is available only when a
heating or cooling demand exists within the zone.
• When LOW, MED, or HIGH is selected, zone airflow will be
continuous without a heating or cooling demand.
A200271
Outdoor Temperature and Indoor Relative Humidity
• The top area of the screen is used to display the Banner. The Banner is
used to provide status information to the end user of the thermostat.
The Banner scrolls through several pieces of information, changing
every 3 seconds. These pieces of information include Outdoor
Temperature, Date and Time, Fan Status, Mode and Humidity.
A200269
997-202003-1-R