OptiFlex™ Advanced Equipment Controller

BMS & Control Automated Logic BUILDING CONTROLLERS
OptiFlex™ Advanced Equipment Controller
EQUIPMENT CONTROL

OptiFlex™ Advanced Equipment Controller

Flexible, high‑performance controller for advanced zone and equipment applications
The OptiFlex™ Advanced Equipment Controller delivers scalable, configurable control for a wide range of HVAC and zone applications, combining graphical programming, open‑protocol integration, and robust hardware design.

OptiFlex™ Advanced Equipment Controller

The OptiFlex Advanced Equipment Controller, model OF253T-E2, is ideal for small equipment control applications such as chilled beams, exhaust fans, unit vents, air curtains, and advanced zone control applications requiring direct connection or daisy chain topology over BACnet/IP or BACnet/MSTP and integration of devices such as VFDs, electric meters, lighting systems and Modbus occupancy sensors.

OptiFlex™ Advanced Equipment Controller

Versatile Application Support

The controller is suitable for a wide range of applications including chilled beams, exhaust fans, unit ventilators, air curtains, and advanced zone control.

Standard Control Program Library

A standard library of control programs is available for most unitary equipment and zone applications, reducing engineering and setup effort.

Dual Ethernet Connectivity

Dual Ethernet ports support BACnet/IP daisy‑chain networking, with Spanning Tree Protocol (STP) enabled for network resilience.

Local Service & Updates

Includes a USB port for local device updates and supports both hard‑wired and wireless service connections.

Networking & Communications

The controller includes dual Ethernet ports supporting BACnet/IP daisy‑chain configurations with Spanning Tree Protocol (STP) for network stability.

Integration Capability

The controller supports integration of up to 50 Modbus points, enabling communication with third‑party equipment.

Memory & Data Retention

Control programs and historical data are stored in non‑volatile memory, removing the need for battery backup.

Physical Installation

The controller supports DIN rail or screw mounting and is suitable for installation in mechanical rooms, equipment cabinets, or weather‑protected locations.

Document Name Description Document Type Language Action
Spec Sheet OptiFlex™ Advanced Equipment Controller Spec Sheet PDF English Download
Modbus Protocol OptiFlex™ Advanced Equipment Controller Modbus Protocol PDF English Download
What types of applications is the OF253T‑E2 designed for?

It is designed for advanced zone and equipment applications such as chilled beams, unit ventilators, exhaust fans, and air curtains.

Does the controller support third‑party equipment integration?

Yes. It supports Modbus integration and open‑protocol communications.

Is battery replacement required?

No. The controller uses non‑volatile memory and a capacitor‑backed real‑time clock, eliminating battery maintenance.

Is the controller suitable for retrofit projects?

Yes. Flexible mounting, open protocols, and scalable I/O make it suitable for new installations and retrofit applications.

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