i-Vu® RTU Open

We ensure equipment performs at its best.

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Viessmann

Specialized Service Support

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i-Vu® RTU Open

Product Integrated Controller

Integrated controller for rooftop units capable of stand-alone operation or integrated with Carrier’s or any Building Automation System using BACnet®, Modbus® or Lonworks® protocol.

Features

Seamless Carrier System Integration

Includes Carrier airside linkage algorithms for plug‑and‑play integration with the Carrier VVT® system.

Energy Optimization Support

Supports demand limiting strategies to help reduce peak energy usage and operating costs.

Cooling Control

Controls up to 2 stages of DX cooling (Up to 3 stages for 48/50 LC WeatherExpert® units).

Heating Control

Controls up to 2 stages of gas heat, or a combination of mechanical and electric heat. Supports up to 4 stages of heat in heat pump mode.

Factory or Field Installation Options

Factory‑installed on Carrier WeatherExpert®, WeatherMaster®, and WeatherMaker® rooftop units Field‑installable on constant volume rooftop units using wiring harnesses (sold separately)

Stand‑Alone Operation Capability

On‑board hardware clock, remote occupancy input, and support for Carrier communicating room sensors or thermistor sensors enable stand‑alone control.

Specifications

Controller Type

Advanced application controller for rooftop unit control

Communication Protocols

BACnet®
Modbus®
LonWorks®¹
N2

Installation Options

Factory‑installed on selected Carrier rooftop units
Field‑installed on constant volume rooftop units (wiring harnesses required)

Control Capabilities

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)

System Integration

Carrier i‑Vu BAS
Carrier VVT® system
i‑Vu Tenant Billing

Technical Documents

Document Name	Description	Document Type	Language	Action
Brochure	VVT Zoning System Brochure	PDF	English	Download
Product Data Sheet	RTU Open Product Data Sheet	PDF	English	Download

Document Name

Description

Document Type

Language

Action

Brochure

VVT Zoning System Brochure

PDF

English

Download

Product Data Sheet

RTU Open Product Data Sheet

PDF

English

Download

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Components for Every System: Chillers to Combustion

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i-Vu® RTU Open

Product Integrated Controller

Integrated controller for rooftop units capable of stand-alone operation or integrated with Carrier’s or any Building Automation System using BACnet®, Modbus® or Lonworks® protocol.

Features

Seamless Carrier System Integration

Energy Optimization Support

Cooling Control

Heating Control

Factory or Field Installation Options

Stand‑Alone Operation Capability

Specifications

Controller Type

Communication Protocols

Installation Options

Control Capabilities

System Integration

Technical Documents