Introduction; What Is The Rtu Open Controller - Carrier RTU Open v3 Integration Manual

Introduction

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 Sensors - 3 models are available for monitoring space temperature, space relative humidity, and space
IAQ/CO2. Sensors provide:
Space setpoint offset adjustment
○
Pushbutton override
○
Occupancy indicator
○
•
Third party protocols - On-board DIP switches allow you to select the baud rate and choose one of the
following protocols:
BACnet
○
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 - Carrier Commercial Control's user interface. The Equipment Touch 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 its property values, schedule equipment, view trends and alarms, and more, without having to access
the system's 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 has specific
screens to facilitate the Carrier Controls installation technician in initially configuring the RTU Open.
For more details about the Equipment Touch, see the Equipment Touch Installation and Setup Guide.
RTU Open v3
Integration Guide
Carrier Proprietary and Confidential
1
CARRIER CORPORATION ©2016
All rights reserved