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.
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.
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)
