Carrier ZS User guide

Z
ZS S S Se en ns so or r
A
Ap pp pl li ic ca at ti io on ns s G Gu ui id de e
CARRIER CORPORATION ©2020 · Catalog No. 11-808-504-01 · 6/11/2020

Verify that you have the most current version of this document from
www.hvacpartners.com
or
www.accounts.ivusystems.com
or your local Carrier office.
Important changes are listed in
Document revision history
at the end of this document.
CARRIER CORPORATION ©2020. All rights reserved throughout the world. i-Vu is a registered trademark of Carrier
Corporation. All other trademarks are the property of their respective owners.

Contents
Introduction.................................................................................................................................................................. 1
This document.......................................................................................................................................................3
ZS Sensor screens ................................................................................................................................................4
Creating Snap control programs for ZS Sensors....................................................................................................... 5
Step 1: Add a Sensor Binder microblock .........................................................................................................5
Step 2: Add Analog Sensed Value Input microblocks....................................................................................6
Step 3: Add Binary Sensed Value Input microblocks if using ZS Pro motion sensor ...............................9
Step 4: Add a BACnet Setpoint microblock.................................................................................................. 11
Step 5: Add a BACnet Time Clock microblock ............................................................................................. 13
Step 6: Add optional values, statuses, and icons........................................................................................ 14
Step 7: Set the order of information displayed on a sensor...................................................................... 14
Icons and text indicators...........................................................................................................................................15
Outside air icon .................................................................................................................................................. 16
Energy saving mode icon.................................................................................................................................. 17
Alarm icon........................................................................................................................................................... 17
Maintenance icon .............................................................................................................................................. 18
Programming specific applications .........................................................................................................................20
Generating alarms............................................................................................................................................. 20
Fan status and control ...................................................................................................................................... 21
Zone HVAC modes ............................................................................................................................................. 23
Hospitality Mode ................................................................................................................................................ 26
Clean room application..................................................................................................................................... 26
External Scheduling........................................................................................................................................... 27
Setting Setpoint Adjust Limit from an external source ............................................................................... 27
Modifying temperature display units on ZS Sensors ................................................................................... 28
To use values from individual sensors in your control program ............................................................................29
Appendix A: Rnet tags..............................................................................................................................................32
Adding custom Rnet tags ................................................................................................................................. 36
Appendix B: ZS Pro and Pro-F Sensor screen fields...............................................................................................37
Appendix C: Converting a control program with an RS Pro to a ZS Pro ...............................................................38
Step 1: Update run conditions with ZS sensor microblocks ...................................................................... 38
Step 2: Make Alarm icon display on a ZS Pro.............................................................................................. 40
Step 3: Make Fan icon display on a ZS Pro.................................................................................................. 40
Step 4: Change sensed zone humidity from an AI to the ZS Sensor........................................................ 42
Document revision history ........................................................................................................................................43

ZS Sensor CARRIER CORPORATION ©2020
Applications Guide All rights reserved
1
The ZS line of sensors consists of the following thermistor-based temperature sensors. The zone sensors come in
a variety of configurations that can include humidity, CO2, VOC, and motion sensing.
Zone Sensors:
ZS Standard ZS Plus ZS Pro
ZS Pro with
motion sensor
ZS Pro-F
Duct Sensors:
Temperature sensor
Temperature/humidity sensor
Temperature averaging sensor
Introduction

Introduction
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2
Pipe Sensor:
Clamp-on temperature sensor
Immersion Sensor:
Temperature sensor
Outdoor Air Sensors:
Temperature sensor Temperature/humidity sensor

Introduction
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3
Remote Sensor:
Temperature sensor
ZS Sensors communicate with the HVAC system through the Rnet.
A ZS zone sensor's functionality is determined by:
•The ZS sensor model (Standard, Plus, Pro, Pro-F)
•The sensor's sensing capabilities (temperature, humidity, CO2, VOC, or motion)
•The control program that runs the associated equipment
REQUIREMENTS
•All ZS Sensors except the ZS Pro with motion sensor require:
•The i-Vu® v6.0 or later application
•v6.0 driver (drv_xxxxxx_6-00-082 or later). Check Carrier Control Systems Support Site
http://www.hvacpartners.com/, https://accounts.ivusystems.com/ for the latest driver.
•The ZS Pro with motion sensor requires:
•The i-Vu® v6.5 or later application
•v6-00a or later controller driver
•A BSVI microblock in the control program (even if it is not used)
This document
This document describes how to create control programs for ZS sensors in the Snap application. To use this guide,
you need a working knowledge of control programs and the Snap application.
See the ZS Sensors Installation Guide to mount, wire, and communicate with the sensors.
See the ZS Sensor User Guide to use the sensors.

Introduction
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4
ZS Sensor screens
Before you begin to create a control program in the Snap application, decide:
•How you want users to interact with the ZS zone sensors
•What information you want your ZS Pro and ZS Pro-F sensors to display
•Which screens should display what information
The ZS Pro and ZS Pro-F sensors have the following screens that you can assign information to.
Home Screen
:This is the initial screen that a user sees. It typically displays the zone temperature. We
recommend that you keep the Home Screen simple and uncluttered. However, if you assign more than one value
to the Home screen, the values cycle from one to the next. Typically, the first item displays for 10 seconds and any
other items display for 3 seconds each.
Information Screen
:This screen displays when the user presses the sensor's button. The user then taps the
button to cycle through the information that you assign to this screen.
Diagnostics Screen
:This screen displays when the user holds the sensor's button for at least 3 seconds. The
user then taps the button to cycle through the information that you assign to this screen.
Setpoint Adjustment Screen
: When a user presses the or button, this screen displays allowing the user to
adjust setpoints. Options that you select in the BACnet Setpoint microblock affect how this screen looks.
To understand what can be displayed on a screen, see:
Icons and text indicators (page 15)
Appendix B: ZS Sensor screen fields (page 37)

Creating Snap control programs for ZS Sensors
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If a controller supports:
•Only one control program, you can wire up to 5 ZS sensors to its
Rnet
port.
•Multiple control programs, you can wire up to 15 ZS sensors to its
Rnet
port. A control program can use no
more than 5 ZS Sensors, so you must use multiple control programs if your Rnet network has more than 5
sensors.
Do the following to create your control program:
Step 1: Add a Sensor Binder microblock. (page 5)
Step 2: Add Analog Sensed Value Input microblocks. (page 6)
Step 3: Add Binary Sensed Value Input microblocks. (page 9)
Step 4: Add a BACnet Setpoint microblock. (page 11)
Step 5: Add a BACnet Time Clock microblock. (page 13)
Step 6: Add optional values, status, and icons. (page 14)
Step 7: Set the order of information displayed on a sensor. (page 14)
See the Microblock Reference Help for a full description of each of the above microblocks.
Step 1: Add a Sensor Binder microblock
From the Snap
Net I/O
microblock menu, add 1
Sensor Binder
microblock to the workspace to enable
communication between microblocks in the control program and up to 5 ZS Sensors. Enter the following
information in the Property Editor.
Sensor Configuration
The Index number is a reference number for each sensor that you define in
this microblock. ASVI and BSVI microblocks will refer to the sensors by their
index number.
Area
Type an intuitive name for the ZS sensor's location. This name will appear in
the ASVI, BSVI, and Setpoint microblocks in the i-Vu interface.
Network Type
Select Rnet for each ZS Sensor that you define.
Address
The physical address (0–14) set on the ZS sensor's DIP switches.
Lock Display
Check to lock a ZS Pro or ZS Pro-F sensor's buttons. The sensor's Home
screen will display a icon. The lock can be overridden in the i-Vu interface
or at the sensor by a user that knows the override procedure.
Creating Snap control programs for ZS Sensors

Creating Snap control programs for ZS Sensors
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Step 2: Add Analog Sensed Value Input microblocks
From the
Net I/O
microblock menu, add one
Analog Sensed Value Input
(
ASVI
) microblock for each type
of sensed value (temperature, humidity, CO2, or VOC) that you want to retrieve from the ZS sensor(s). For
example, the first ASVI may retrieve temperature, and the second may retrieve humidity, etc. A control program
can have only one ASVI for each type of sensed value. Enter the following information in the Property Editor.
NOTE
If your control program needs to retrieve temperature or humidity values from ZS zone sensors and ZS duct
or pipe sensors, use the same ASVI microblock and select the
Zone Temp
or
Zone Humidity
Rnet tag.
Rnet Tag
The Rnet tag determines which value (Temperature, Humidity, CO2, or VOC)
is retrieved from the ZS Sensor. A zone sensor's screen will display:
or for Zone Temp
Zone Humidity
CO2
for Zone CO2
UOC
for Zone VOC
Default Value
The value that the microblock outputs when communication with all enabled
sensors fails or during sensor startup.
Units
The unit of measurement of the microblock's present value. Select from the
BACnet engineering units in this droplist. For some microblocks, you can
customize the droplist by selecting
Options
>
Preferences
>
Droplist Options
.
Index/Enable
The Index number corresponds to the ZS sensors defined in the Sensor
Binder microblock. Check
Enable
for each sensor that you want to include in
the combination algorithm used to determine the output value of the
microblock.

Creating Snap control programs for ZS Sensors
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Combination Algorithm
If using more than 1 sensor, select how the enabled sensors' values are to
be combined to determine the microblock's output value. When the
calculation is performed, only sensors with a valid value are included.
COV Increment
To reduce Rnet traffic, you can force the microblock to update its output only
when the sensed value changes by more than the
COV Increment
.
Show on Sensors
Select
Local Value
to have each enabled sensor display its individual sensed
value, or
Calculated Value
to have each sensor display the value determined
by the
Combination Algorithm
.
Display Resolution
Defines the resolution of the value to be displayed on the sensor. For
example, 1 displays only integers (example: 74) and 0.5 displays values to
the nearest 0.5 (example: 74.5).
Input Smoothing
If the raw value from the sensor changes frequently, you can select one of
the following options to send out an average of several readings on the
output wire.
Select...
To send out the...
None
Minimum
Medium
Maximum
Raw value
Average of the last 2 readings
Average of the last 5 readings
Average of the last 9 readings
Show on
Check the zone sensor screen(s) that you want this microblock's value
displayed on.
Input Resolution
The increment by which the microblock updates the value on its output wire
in a running system.
The
Resolution
format is used to truncate the microblock’s actual value. For
example, if you enter a value from:
•0.1 to 0.9, the wire displays 1 digit to the right of the decimal
•0.01 to 0.99, the wire displays 2 digits to the right of the decimal
•1 or greater, the wire displays a whole number
The
Resolution
value determines the increment by which the present value is
updated. For example, if you enter:
•.2, the wire displays 8.4, 8.6, 8.8, ...
•.03, the wire displays 5.09, 5.12, 5.15, ...
•10, the wire displays 30, 40, 50, ...

Creating Snap control programs for ZS Sensors
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Creating Snap control programs for ZS Sensors
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Step 3: Add Binary Sensed Value Input microblocks if using ZS Pro
motion sensor
From the
Net I/O
microblock menu, add one
Binary Sensed Value Input
(
BSVI
) microblock that will read a
binary value from up to 5 ZS motion sensors, and makes the value available to the control program on an output
wire. If the Rnet has more than one ZS motion sensor, the microblock's combination algorithm determines
whether the output value is based on a single sensor or all sensors having the same value.
Rnet Tag
All values from a ZS Sensor must have an Rnet tag that defines what type of
information this microblock's value represents.
NOTE
If the Rnet tag droplist does not have the tag you want, you can create
a custom tag in Snap.
Index/Enable
The Index number corresponds to the ZS sensors defined in the Sensor
Binder microblock. Check
Enable
for each sensor that you want to include in
the combination algorithm used to determine the output value of the
microblock.
Combination Algorithm
If using more than 1 sensor, select how the enabled sensors' values are to
be combined to determine the microblock's output value. Select:
And
to output 1 if all sensors have a value of 1, otherwise output 0
Or
to
output 1 if any sensor has a value of 1, otherwise output 0
Show on Sensors
Select
Local Value
to have each enabled ZS Pro or Pro-F sensor display its
individual sensed value, or
Calculated Value
to have each ZS sensor display
the value determined by the
Combination Algorithm
.
Show on
Check the ZS Pro or Pro-F sensor screen(s) that you want this microblock's
value displayed on.
Show text
Enter the text that the ZS sensor's display will show with the microblock's
output is off or false (inactive) or when it is on or true (active).
Inactive Text
The
Inactive Text
your system displays when the microblock's output is off, or
false.
Active Text
The
Active Text
your system displays when the microblock's output is on, or
true.

Creating Snap control programs for ZS Sensors
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Creating Snap control programs for ZS Sensors
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Step 4: Add a BACnet Setpoint microblock
The BACnet Setpoint microblock allows you to define the setpoint adjustment functionality for a ZS sensor and
allows a ZS Pro or Pro-F to display setpoint values that can be edited from the sensor.
From the
Control
microblock menu, add a
BACnet Setpoint
microblock to determine how the user will
interact with the sensor's Setpoint Adjustment screen. Enter the following information in the Property Editor.
Enable Rnet
Check to allow this microblock to communicate its value(s) to and from a ZS
sensor.
Setpoint Adjust Limit (+/-)
The maximum amount (degrees) by which the user can adjust the zone's
setpoints from a zone sensor if an
Adjust setpoint offset
option is selected
under
Sensor Setpoint Adjust Option
.
Clear adjustment on transition
to unoccupied
ZS Pro and Pro-F sensors - Check to have the Setpoint microblock reset the
sensor's setpoint adjustment value to 0 each time the microblock's OCC
input changes to false (off) and leave it at 0 when the OCC input changes
again to true (on) or when the zone enters a timed local override condition.
If this field is not checked, the Setpoint microblock will not reset the sensor's
adjusted value for the next occupied period.
ZS Plus sensor - This field does not apply. The Setpoint microblock cannot
reset the sensor's adjusted value.
NOTE
The Setpoint microblock does not use adjusted values during
unoccupied periods.
Edit Increment
The amount (degrees) that the zone temperature setpoint is adjusted by
each press of a ZS Pro sensor's or button. For a ZS Plus sensor, slider
adjustments are read to the nearest increment.
Sensor Setpoint Adjust Option
Select how you want to see and adjust setpoints on a ZS sensor.
Disabled
Prevents editing the setpoints at the sensor.
1.
Adjust setpoint offset.
Center display=Zone
Temp. Show effective
setpoints.
Example of sensor display:
2.
Adjust base setpoint.
Center display=Zone
Temp. Show effective
setpoints.
Example of sensor display:
3.
Adjust setpoint offset.
Center display=Offset
value. Show effective
setpoints.
Example of sensor display:

Creating Snap control programs for ZS Sensors
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4.
Adjust setpoint offset.
Center display=Offset
value. Hide effective
setpoints.
Example of sensor display:
5.
Hospitality mode
Displays only the active effective setpoint or the average of the heating and
cooling setpoints if the mode is auto. The effective setpoint is adjustable.
Editable
Check under
Occupied
or
Unoccupied
to make each setpoint editable on a
ZS Sensor.
Show on
Check the sensor screen(s) that you want
Occupied
,
Unoccupied
and
Effective Setpoints
displayed on.
Home Screen (1)
:Effective Setpoints are displayed on the Home screen in
the following locations:
On the Information or Diagnostics screen, effective setpoints cycle through in
the primary value field and show
EFF
in the Rnet tag field. See Appendix B:
ZS Sensor screen fields (page 37).
Information Screen (2)
:This screen is accessed by pressing the sensor's
button.
Diagnostics Screen (3)
:This screen is accessed by holding the sensor's
button for at least 3 seconds.
NOTE
To enable/disable the setpoint adjustment functionality of specific sensors on the Rnet, double-click the
BACnet Setpoint microblock on the
Logic
page in a running system. On the
Sensor
tab, check/uncheck a sensor's
Allow Setpoint Adjust
checkbox.

Creating Snap control programs for ZS Sensors
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Step 5: Add a BACnet Time Clock microblock
The BACnet Time Clock microblock enables the ZS Sensor's override function and controls its green Occupied LED.
From the
Control
microblock menu, add a
BACnet Time Clock with TLO and Override Status
microblock
to determine how the user can interact with your schedule through the ZS Sensor. Enter the following information
in the Property Editor.
Enable Rnet
Check to allow this microblock to communicate its value(s) to and from a ZS
sensor.
Allow 'Continuous' Override
Check to allow a user to force a zone into an occupied state for an indefinite
amount of time. The override remains in effect until the schedule transitions
to occupied or until a user manually clears it by pressing the sensor's
button twice.
Allow Force Unoccupied
Check to allow a user to save energy by forcing the zone into an unoccupied
state. To force unoccupied, a user holds a ZS sensor's button for at least 3
seconds. This override state remains in effect until the schedule transitions to
unoccupied or until a user presses the sensor's button.
Force Unoccupied without
Delay
Check to allow a user to force a zone to unoccupied immediately instead of
the normal 3-second delay.
NOTE
This feature is unavailable if
Allow TLO Set During Occupied
is
checked.
Allow TLO Set During Occupied
Check to allow a user to activate a timed local override while the zone is
scheduled occupied. This allows a user to extend the zone's occupied time
without the zone having to go unoccupied first.
NOTE
This feature is unavailable if
Force Unoccupied without Delay
is
checked.
Timed Local Override
Increment
Minutes the microblock adds to the zone's occupied time for each press of the
zone's local override button or switch.
Maximum Duration
Maximum value (up to 960 minutes) the microblock outputs regardless of
additional pulses from the controller's input.
Optional
tab -
Allow for External
Scheduling
See External Scheduling.
During an override, the bottom of the screen will show and the minutes remaining in the override.

Creating Snap control programs for ZS Sensors
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Step 6: Add optional values, statuses, and icons
Use the following microblocks for optional icons, values, or statuses that you want to display on the sensors.
Individual uses are discussed throughout this document. See the Microblock Reference Help for a full description
of each microblock.
BACnet Analog Value Parameter
BACnet Binary Value Parameter
BACnet Multi-State Value Parameter
BACnet Analog Value Status
BACnet Binary Value Status
BACnet Multi-State Value Status
On each microblock's
Rnet
tab, you must check the
Enable Rnet
field to have the microblock communicate values
with the ZS Sensors, and you must select the appropriate
Rnet Tag
.
See Icons and text indicators (page 15) for instructions on adding specific optional icons.
Step 7: Set the order of information displayed on a sensor
To program the display order and rotation time of information on each screen, select
Reorder
>
Sensor Display
Order
. In this example, Zone Temp displays on the Home Screen for 10 seconds, then Zone Humidity, Zone CO2,
and Zone VOC each display for 10 seconds.
To change the display order, select the microblock(s) you want to move, then click or .

Icons and text indicators
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The following table shows all icons that can display on a ZS Sensor display. The image below the table shows the
location of each icon on the sensor's screen. See Appendix A: Rnet Tags (page 32) to see which tags are
associated with each icon or text indicator.
This item...
Indicates...
Notes
or
The temperature is Fahrenheit or Celsius. Shown for any temperature that has
°F
or
°C
selected in the
Units
field.
The value shown is percent relative humidity. Shown for any humidity value that has
%RH
selected in the
Units
field.
The value shown is outside air temperature
or humidity.
See Outside air icon (page 16) to program.
Cooling See Zone HVAC Modes (page 23) to
program.
Heating See Zone HVAC Modes (page 23) to
program.
The zone's fan is running. See Fan status and control (page 21) to
program.
The fan speed. See Fan status and control (page 21) to
program.
The value(s) in the display, typically
setpoints, are editable using the and
buttons. If the control program specifies that
the value is not editable, you will see
without arrows.
For AVP, BVP, or MSVP values, or the
Setpoint adjust value from the BACnet
Setpoint microblock.
The sensor is in a timed override. Automatically generated by the BACnet
Time Clock microblock.
The equipment is running in an energy
saving mode defined in the control program.
See Energy saving mode icon (page 17) to
program.
An alarm condition exists. If programmed,
the Information screen or Diagnostic Screen
may provide details on the alarm.
See Alarm icon (page 17) to program.
A maintenance condition exists. If
programmed, the Information screen or
Diagnostic Screen may provide details on the
maintenance condition.
See Maintenance icon (page 18) to
program.
The sensor's buttons are locked by the
control program or because a user locked
them at the sensor.
See Step 1: Add a Sensor Binder
microblock (page 5).
OCC
The displayed setpoint is an occupied
setpoint.
Automatically generated by the BACnet
Setpoint microblock.
UnOCC
The displayed setpoint is an unoccupied
setpoint.
Automatically generated by the BACnet
Setpoint microblock.
Icons and text indicators

Icons and text indicators
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This item...
Indicates...
Notes
CO2
The value shown is CO2. Shown for a CO2Rnet tag.
UOC
The value shown is VOC. Shown for a VOC Rnet tag.
EFF
The value shown is the effective setpoint. Automatically generated by the BACnet
Setpoint microblock.
EI
Environmental Index Shown for EI Rnet tag.
TIPS
•Rnet Tag numbers seen on a sensor are not intuitive. We recommend that you use the display text to clearly
identify a value.
NOTE
The following letters do not display on a sensor screen: K, M, Q, V, W, X
•We recommend that you limit the information displayed on the Home screen. Use the Information screen or
Diagnostic screen to display any values that require display text to describe them.
Outside air icon
To display this icon with the outside air temperature, humidity, or CO2:
1 From the
Sys Out
microblock menu, add a
BACnet Analog Value Status
microblock.
2 On the Property Editor's
Rnet
tab, check
Enable Rnet
.
3 Select an Outside Air option from the
Rnet Tag
drop-down list.
4 Check a
Show on
screen to display the value and icon.
NOTE
In addition to :
○Temperature shows or .
○Humidity shows .
○CO2shows
CO2.