VVT-C Dynamic Airflow Balancing Overview

2 Minute Read

| Introduction

The Dynamic Airflow Balancing is concept, idea and a profile which was introduced by the Carrier, which unlike the other profiles in the system does not use the HVAC domain specific concepts as algorithm, but instead uses a proprietary concept of Carrier system in its algorithm. The Carrier clearly understands that regardless of any building the HVAC needs of the building is not the same throughout the day, and it   varies from one floor to another and one room to another. With this in mind, the Dynamic Airflow Balancing profile was introduced under Carrier BMS umbrella. It uses this aspect of variable load requirement to clearly define its value in terms of comfort and efficiency.

| Principle

Unlike the traditional Variable Volume concepts in use, the Dynamic airflow balancing uses the concept of Variable Temperature.

| How it works 

The Dynamic Airflow Balancing (VVT-C) uses an Intelligent Algorithm. that constantly looks for the change in the difference between the desired and current temperatures and provides the required conditioning via Staged/Modulating HVAC equipment.

| Arrangement

At the AHU or the RTU level the VVT-C profile uses the CCU along with the CM board and different type of actuators to provide the necessary controls.

At zone level it uses the SmarNode, HelioNode, smart dampers and damper actuators the products of Carrier to provide the necessary controls.

| Profiles Supported

At system level the VVT-C supports four types of Profiles.

• VVT-C Staged RTU
• VVT-C Staged RTU with VFD
• VVT-C Fully Modulation AHU
• VVT-C Advanced Hybrid AHU

With the introduction of the concept of zoning, and with module or terminal level controls required.  The VVT-C also supports Terminal Profile.

• VVT-C Terminal profile
• VVT-C Dual Duct Terminal profile