Carrier System Touch Assembly instructions

S
Sy ys st te em m T To ou uc ch h
I
In ns st ta al ll la at ti io on n a an nd d S Se et tu up p G Gu ui id de e
CARRIER CORPORATION ©2018
A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-525-01 · 4/16/2018

Verify that you have the most current version of this document from
www.hvacpartners.com
or your local Carrier
office.
Important changes are listed in
Document revision history
at the end of this document.
CARRIER CORPORATION ©2018. 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
What is the System Touch? ........................................................................................................................................ 1
Specifications ........................................................................................................................................................2
System Touch screens .........................................................................................................................................3
Wiring and mounting the System Touch ................................................................................................................... 9
Wiring specifications......................................................................................................................................... 10
To wire and mount the System Touch............................................................................................................ 10
Setting up the system ...............................................................................................................................................12
Step 1: Set up communications..................................................................................................................... 12
Step 2: Discover controllers ............................................................................................................................ 13
Step 3: Create the system database ............................................................................................................. 14
Step 4: Optional - Install custom screen file ................................................................................................ 15
Step 5: Set up scheduling functionality ........................................................................................................ 15
Step 6: Optional - Adjust touchscreen settings............................................................................................ 16
Using System Touch's temperature and humidity sensors to control equipment ...............................................17
To edit touchscreen settings.....................................................................................................................................19
To update the System Touch's firmware .................................................................................................................21
Resetting the System Touch.....................................................................................................................................22
Compliance ................................................................................................................................................................23
FCC Compliance................................................................................................................................................. 23
CE Compliance ................................................................................................................................................... 23
Industry Canada Compliance........................................................................................................................... 23
Appendix: External sensor resistance requirements ............................................................................................24
Document revision history ........................................................................................................................................25

System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
1
The System Touch is a touchscreen device with a 4.3 in. color LCD display that acts as a front-end interface to
controllers on a BACnet network.
The System Touch has built-in temperature and humidity sensors. You can use their values to control equipment.
You can also wire an external thermistor to the System Touch and use its value instead of the built-in temperature
sensor's value.
You can install and run the System Touch with only its built-in system screens, or you can create a custom
touchscreen file in ViewBuilder. This requires that you create custom screens in ViewBuilder, and then save the
touchscreen (.touch) file. See "Working with System Touch screens" in ViewBuilder Help.
NOTE
To use custom screens, the System Touch must have v2.00-015 or later firmware.
What is the System Touch?

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
2
To set up a System Touch:
1 Connect the System Touch to an MS/TP network (page 9).
2 Discover BACnet devices on the same network or on a different BACnet ARCNET or BACnet MS/TP network
(page 12).
3 Create the system database (page 12).
4 Install custom screen file (optional) (page 12).
After you set up your system, you can:
•Schedule when equipment should run
•View alarms
•View Equipment Touch screens for individual controllers on the network. The information on the controller
screens depends on whether the controller is a Carrier controller or a third-party controller, and if it is an
Carrier controller, whether it has an Equipment Touch file.
NOTE
To see a controller's Equipment Touch screens on the System Touch, the Equipment Touch file must
be downloaded to the controller before you create the System Touch database.
Specifications
Power 24 Vac (±15%), 5 VA, 50–60 Hz, Class 2.
Display 4.3 in. resistive touchscreen color LCD display with backlighting (Wide Quarter VGA,
480x272 pixels)
Enclosure ABS plastic with polycarbonate bezel
Ports •EIA-485 based serial port for BACnet MS/TP communication
•USB host port
Microcontroller 32-bit
Memory •16 MB Flash memory to store program code and screen file.
•1.5 MB RAM to store variable data and LCD data.
•4 KB Serial EEPROM to store non-volatile configuration data.
Real-time clock A365-day real time clock/calendar chip. The time and date will be maintained for a
minimum of 72 hours after loss of power (at room temperature).
Audible alarm
notification
A piezoelectric sounder
Temperature sensor Range:
Accuracy over 30.0°F to 100°F:
Accuracy over full range:
Resolution:
-4.0°F to 140°F (-20°C to 60°C)
±1.0°F (±0.55°C)
±2.0°F (±1.1°C)
0.2°F (0.1°C)

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
3
Humidity sensor Range:
Accuracy over 20 to 80% RH:
Accuracy over full range:
Resolution:
0 to 100% RH
±3.0% RH
±5.0% RH
0.05% RH
Environmental
operating range
-4ºF to 140ºF (-20ºC to 60ºC), 10–90% RH, non-condensing
Mounting Wall or panel mounting within the building interior.
Overall dimensions Width:
Height:
Depth:
5.44 in. (13.82 cm)
4.55 in. (11.56 cm)
1.24 in. (3.15 cm)
Backplate dimensions Width:
Height:
4.79 in. (12.2 cm)
3.94 in. (10 cm)
Weight 8 oz. (0.23 kg)
Listed by UL-916 (PAZX), CE, FCC Part 15-Subpart B-Class A
Device identification The System Touch's box contains a label with the product name and the serial number
that begins with
STC
.
Remove the front of the System Touch and turn it over to see the serial number on a
label attached to the control board.
System Touch screens
The System Touch will display the system screens shown below and any custom-designed screens.
NOTE
To use custom screens, the System Touch must have v2.00-015 or later firmware. Go to
Touchscreen
Setup
>
About
to see the firmware version number.
Screen name
Description
Standby
If included in the touchscreen file, this custom screen displays when the System Touch has
had no user activity for the time specified on the
Inactivity Timeout
screen. This
Standby
screen is not interactive, and as soon as the user touches the screen, the
Home
screen
displays. If the touchscreen file does not include a Standby screen, the Home screen
displays after a period of inactivity.
NOTE
You can show a device's Home and Standby screens instead of the System Touch's
Home and Standby screens. See instructions for
Home Screen Setup
in To edit
touchscreen settings (page 19).
Home
A custom screen for the System Touch.

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
4
Screen name
Description
System View
The Home screen that shows each controller in the system (labeled
Office
,
Conference
Room
, and
Lobby
in the above example), and for Carrier controllers, shows the zone
temperature and zone color. You can touch the button for a controller to go to its
Equipment Touch screens. See the controller's Installation Guide for a description of those
screens.
From this System View screen, you can touch:
•
Alarms
to view, acknowledge or delete alarms
•
Schedules
to view, create, or delete schedules
•
Setup
to edit the system or edit touchscreen settings (requires administrator-level
password)
The System View screen displays when the System Touch has had no user activity for a
period of time specified on the Touchscreen Setup >
Inactivity Timeout
screen (page 19).
Login
Displays if you select a screen that requires an administrator-level password. If you have an
administrator-level password, enter it, then touch
Done
.
NOTES
•The default password for a new System Touch is
admin
.
•You can change the password on the Touchscreen Setup >
Passwords
screen (page
19).
•You log out on the
Setup
screen.
•If you try to go to a screen for a particular controller and you are prompted to log in, the
Equipment Touch screen for that controller requires a different password.

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
5
Screen name
Description
Alarm
Manager
Lets you view all alarms in the system. See "Viewing alarms" in the System Touch User
Guide.
Alarm Detail
Shows details of a single alarm. See "Viewing alarms" in the System Touch User Guide.
Schedule Groups
Lets you create groups of equipment so that you can set up a common operating schedule
for each group. From this screen, you can also edit or delete existing schedule groups. See
"Setting up schedules" in the System Touch User Guide.

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
6
Screen name
Description
Create Schedule
Group
Lets you create a group and assign equipment to it. See "Setting up schedules" in the
System Touch User Guide.
Schedules
Lets you view, add, edit, or delete BACnet schedules in the controller. See "Setting up
schedules" in the System Touch User Guide.
Setup
Touch a button to go to the
Communications
,
Discovery
,
Viewfile
, or
Touchscreen Setup
screen, or to log out.

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
7
Screen name
Description
Communications
Lets you define network communications for the System Touch. You also define the
network that you want the System Touch to scan during discovery. See Setting up the
system (page 12).
Discovery
Lets you discover controllers on the network so that you can create the system database.
See Setting up the system (page 12).
Set Range
Lets you set a range (0–255) of MAC addresses to be discovered. See Setting up the
system (page 12).

What is the System Touch?
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
8
Screen name
Description
Discovery
after discovering
controllers
Lets you rename discovered controller, select the controllers that you want to include in the
system, and then create the system database. See Setting up the system (page 12).
Touchscreen Setup
Lets you edit the touchscreen settings (page 19).

Wiring and mounting the System Touch
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
9
CAUTION
If the equipment is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.
Mounting
The Equipment must be mounted within the building interior. You can mount the System Touch:
•In a panel or on the panel door
•On a wall
Wiring
•The System Touch is wired to an MS/TP network and a 24 Vac power supply.
•You can also wire an external 10 kOhm, Type II thermistor (Carrier part number 33ZCT55SPT) to the System
Touch. See Appendix: External sensor resistance requirements (page 24).
Wiring and mounting the System Touch

Wiring and mounting the System Touch
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
10
Wiring specifications
Power wiring
2-conductor wire 18 AWG for distances up to 100 feet. All transformer secondaries must be grounded. Wiring
connections must be in accordance with NEC and local codes.
MS/TP network wiring
22 AWG, low-capacitance, twisted, stranded, shielded copper wire.
Maximum network length: 2000 feet (610 meters)
See MS/TP Networking and Wiring Installation Guide for more information.
To wire and mount the System Touch
1 Remove the backplate from the System Touch:
a) Hold the System Touch as shown in the picture below.
b) While firmly pressing the 2 tabs on top of the System Touch, pull on the backplate with your index finger
until the backplate releases from the System Touch.
2 Pull the communication cable, the power cable, and external thermistor wiring (if applicable) through the
large hole in the center of the backplate. See figure in step 5.
3 Partially cut, then bend and pull off the outer jacket of the cable(s). Do not nick the individual wire insulation.

Wiring and mounting the System Touch
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
11
4 If wiring 1 cable to the System Touch, cut the shield wire off at the outer jacket, then wrap the cable with tape
at the outer jacket to cover the end of the shield wire.
If wiring 2 cables in a daisy-chain configuration, twist together the shield wires, then wrap the shield wires
with tape.
5 Strip about 0.25 inch (0.6 cm) insulation from the end of each wire.
6 Connect wiring to the System Touch as shown below:
CAUTION
Allow no more than 0.06 inch (1.5 mm) bare communication wire to protrude. If bare
communication wire contacts the cable's foil shield, shield wire, or a metal surface other than the terminal
block, the device may not communicate correctly.
7 Attach the backplate to the wall or panel. If mounting in or on a panel:
a) Drill two 3/16 inch (4.8 mm) pilot holes in the panel.
b) Attach backplate using pan head 6-32 x 3/8" to l/2" long machine screws. Do not overtighten screws to
prevent damage to plastic housing.
RECOMMENDATION
Use Loctite 220 on screw threads if the System Touch will be subject to vibration.
8 Attach the System Touch to the backplate:
a) Place the bottom of the System Touch onto the backplate by aligning the 2 slots on the System Touch
with the tabs on the backplate.
b) Push the System Touch onto the backplate until the tabs at the top of the System Touch snap onto the
backplate.
9 Connect power wiring to a 24 Vac power supply.

Setting up the system
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
12
Step 1: Set up communications
1 On the
System View
(home) screen, touch
Setup
>
Communications
.
2 In the left column, select the baud rate of the MS/TP network that the System Touch is on.
3 Use the following information to set the 3 fields on the right.
Field
Description
My Device Instance
The System Touch's BACnet Device Instance. This number must be unique
on the MS/TP network. Leave this at the default (160099) unless there is
another System Touch or other device on the network with this number.
My Address
The System Touch's address. This number must be unique on the MS/TP
network. Leave this at the default (127) unless there is another System
Touch or other device on the network with this address.
Destination Network
The network number of the BACnet ARCNET or BACnet MS/TP network that
the System Touch will discover controllers on. To discover controllers on the
System Touch's own MS/TP network, this field must be set to 0.
CAUTION
The System Touch's Device Instance number is added to each controller's alarm recipients list
when you create the system database. If you change
My Device Instance
after you create the database, you
must rediscover the controllers to have the System Touch receive alarms from controllers.
4 Touch
Save
.
Setting up the system

Setting up the system
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
13
Step 2: Discover controllers
In the previous step, you defined the network that the System Touch will discover devices on. To discover
controllers:
1 On the
Setup
screen, touch
Discovery
>
Set Range
.
2 System Touch can scan the network for all MAC addresses (0 to 255), or you can define a smaller range of
addresses to search for. Touch each field on the
Set Range
screen, and then enter an address.
3 Touch
Save
.
4 On the
Discovery
screen, touch
Discover
. When discovery is complete, the screen lists every BACnet
controller that was found on the network.
NOTE
The System Touch cannot discover controllers on a BACnet IP network, so a BACnet router that is on
an IP network and the ARCNET or MS/TP network will not be discovered.

Setting up the system
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
14
Step 3: Create the system database
The discovery process finds every BACnet controller on the network, but you may not want to include them all in
the system you are creating. Carrier recommends that you have no more than 32 devices in your system.
1 Touch each controller that you want to include in the system and change its name to something that will be
meaningful to a user (maximum 21 characters). For example, if the first controller on the screen controls the
lobby, change the name to "Lobby".
2 Select the controllers that you want to include in the system by touching individual boxes on the left side of
the screen or by touching
Select All
.
3 Touch
Create DB
(database). The
System View
screen shows your new system.
NOTE
Clear DB
deletes the system (controllers, alarms, and schedule groups) and returns the System Touch to its
initial state.

Setting up the system
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
15
Step 4: Optional - Install custom screen file
PREREQUISITES
•The System Touch must have v2.00-015 or later firmware to display custom screens.
•You need a USB flash drive that is formatted as FAT, FAT16, or FAT32. To verify, insert the flash drive into
your computer, then right-click the flash drive in Windows Explorer and select
Properties
.
File system
should
show
FAT
xx. If
File system
shows NTFS or anything else, you must reformat the drive. Right-click the flash
drive, then select
Format
. In the
File system
field, select
FAT (Default)
, then click
Start
.
CAUTION
Before you install your custom screen file, make sure that the creator of the file included
navigation from the custom screens to the system screens.
To install the custom screen file:
1 Create a folder on the flash drive called
Touch
, then put the xxxxxx.stv file in the folder.
2 Plug the flash drive into the System Touch's USB port.
3 From the System Touch's Home screen, touch
Setup
>
Viewfile
.
4 Touch
OK
. The following series of messages appear:
Verifying Firmware Image.
Loading View file.
5 When the Home screen displays, remove the flash drive.
NOTE
To remove the .stv file from the System Touch so that it returns to its original state with only built-in
screens, follow the procedure above except remove all files from the
Touch
folder mentioned in step 1.
Step 5: Set up scheduling functionality
You can define BACnet schedules for any controller whose control program(s) support time schedules.
To allow a user to create schedules on the Equipment Touch:
1 In the i-Vu® or Field Assistant tree, right-click the controller, and then select
Driver Properties
.
2 On the
Settings
tab, scroll down to
TouchScreen Control
and verify that
TouchScreen Schedule Edit Enable
is
checked.
CAUTION
If scheduling for this system will be done in the i-Vu® interface, you should disable scheduling in
the System Touch so that they do not overwrite each other's schedules. To disable scheduling, uncheck the
TouchScreen Schedule Edit Enable
field on the controller's
Driver
page.
See "To create a schedule for a group of equipment" in the System Touch User Guide.

Setting up the system
System Touch CARRIER CORPORATION ©2018
Installation and Setup Guide All rights reserved
16
Step 6: Optional - Adjust touchscreen settings
See To edit touchscreen settings (page 19) to adjust the following settings:
•To show a particular device's Home and Standby screens instead of the System Touch's Home and Standby
screens. For example, you may want the System Touch to show the conditions of the room where it is
mounted instead of the entire system.
•The time of inactivity before the System Touch returns to the Home screen
•The location, units, and offset of temperature and humidity sensor values
•Whether the System Touch makes a sound when you touch the screen
•Whether the System Touch makes a warning sound when it receives an alarm
•The language used for System Touch screens
•The User or Admin password, if allowed