Australia
New Zealand
Greece
The RTU Open controller continuously monitors and regulates constant volume rooftop operation with reliability and precision. This advanced controller features a sophisticated, factory-engineered control program that provides optimum performance and energy efficiency. It also features plug-and-play connectivity to the Carrier i-Vu Building Automation System.
For added flexibility, the RTU Open controller is capable of stand-alone operation, or, it can be integrated with any other Building Automation System utilizing the BACnet, Modbus®, LonWorks®, or N2 protocols.
Advanced application controller for rooftop unit control
BACnet®
Modbus®
LonWorks®¹
N2
Factory‑installed on selected Carrier rooftop units
Field‑installed on constant volume rooftop units (wiring harnesses required)
Up to 3 stages DX cooling (model dependent)
Up to 4 stages heating (heat pump mode)
Economizer and power exhaust control
Fan speed control (2 modes)
Carrier i‑Vu BAS
Carrier VVT® system
i‑Vu Tenant Billing
It is designed to control packaged rooftop units, including Carrier WeatherExpert®, WeatherMaster®, and WeatherMaker® models, as well as constant volume rooftop units.
Yes. It supports BACnet, Modbus, LonWorks, and N2, allowing flexible integration into open building automation systems.
Yes. The controller supports stand‑alone operation using its on‑board clock, occupancy input, and room sensor support.
Through demand limiting, economizer optimization, fan speed control, and advanced zone‑level control routines.
Get directed to our Business Development team to start the authorization process and discuss sales support.
Get specialized help with system sizing, load
calculation analysis, and technical data required for project design.
Request support for warranty claims,
scheduled maintenance, and genuine spare
parts ordering.
For more information : ahi@ahi-carrier.com