RTU Open v3
CARRIER CORPORATION ©2019
Installation and Start-up Guide
All rights reserved
1
What is the RTU Open controller?
The RTU Open controller (part# OPN-RTUM2) is available as an integrated component of a Carrier rooftop unit, or
as a field-installed retrofit product.
NOTE
The RTU Open controller is available in both English or Metric units. The metric version has (-M) appended
to the part number. Everything in this document applies to both versions.
Its internal application programming provides optimum rooftop performance and energy efficiency. RTU Open
enables the unit to run in 100% stand-alone control mode or it can communicate to the Building Automation
System (BAS).
The RTU Open supports the following:
•
ZS and Carrier wireless sensors
- Models are available for monitoring space temperature, space relative
humidity, and space IAQ/CO2. Sensors provide:
○
Space setpoint offset adjustment
○
Pushbutton override
○
Occupancy indicator
•
BACnet
and
third party protocols
- On-board DIP switches allow you to select the baud rate and choose one of
the following protocols:
○
BACnet MS/TP
○
BACnet ARC156
○
Modbus
○
Johnson N2
○
LonWorks
•
Mixed systems
- Supports CCN air terminals using Linkage to BACnet RTU Open Air Source
•
California Title 24
- Includes advanced Fault Detection and Diagnostic Logic for Economizer Operation in
accordance with California Title 24 requirements
•
Equipment Touch
- The Equipment Touch is a user interface that is a touchscreen device with a 4.3 in. color
LCD display that you connect to the RTU Open (driver v6.00:082 or later) to view or change property values,
equipment schedules, trends and alarms, and more, without having to access the system's i-Vu® server.
The RTU Open’s application supports detailed color graphics, status, properties, alarms, trends, performance,
configuration, and Help on the Equipment Touch. In addition, an RTU Open
Startup Wizard
(page 95) has
specific screens to facilitate initial RTU Open configuration.
For more details about the Equipment Touch, see the
Equipment Touch Installation and Setup Guide
.
Introduction
Summary of Contents for RTU Open v3
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