1 The FBVi-2U4-4T
INTRODUCTION
The FBVi-2U4-4T is a freely programmable BACnet® Unitary Controller with native BACnet/IP
communications support. The controller is BTL listed as BACnet Building Controller (B-BC) and is ideally
suited for the control of Variable Air Volume zoning applications.
Part of Cylon’s FLXeon Series of BACnet/IP field controllers, the FBVi-2U4-4T features 2 UniPuts™, 4
Universal Inputs and 3 Digital (Triac) Outputs, along with an integrated airflow sensor and a dedicated
input for Cylon’s CBT-STAT or other intelligent room sensors. The FBVi-2U4-4T model includes an
integrated Belimo actuator.
FLXeon's scalable and modular architecture utilizes its embedded graphics and visualization engine
FLXvue to get data from the #edge2cloud.
APPLICATION
The FBVi-2U4-4T is suitable for controlling single duct or fan assisted Variable Air Volume (VAV)
applications. This controller also supports demand ventilation application, occupancy sensing or lighting
control to further enhance energy savings.
Examples of typical VAV zoning applications include;
• Cooling only
• Cooling with Reheat
• Cooling with Reheat and Perimeter Radiation
• Series fan VAV
• Parallel fan VAV
The controller accommodates available pre-engineered strategies or can be tailored to custom
applications using CXproᴴᴰ programming software.
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