VVT Bypass Controller with Integrated Actuator

BMS & Control Carrier
VVT Bypass Controller with Integrated Actuator
Carrier Comfort Network

VVT Bypass Controller with Integrated Actuator

Simplifying HVAC control for efficient building climate solutions.

  • Integrated pressure sensor
  • Reliable system compatibility
  • Energy-efficient HVAC operation

VVT Bypass Controller with Integrated Actuator

The VVT® Bypass Controller with Integrated Actuator (33ZCBC-01) is an essential component for Carrier’s Comfort Network 3V System, designed to regulate supply duct static pressure in variable volume and temperature applications. By providing precise temperature control at the zone level in constant volume HVAC systems, this controller enhances energy-efficient systems while ensuring uninterrupted comfort. Integrated pressure sensors, leaving air temperature protection and quick commissioning, offer users a practical and reliable HVAC control technology. Compatible with Carrier communicating devices, the Bypass Controller furthers building climate solutions with seamless integration and robust performance.

VVT Bypass Controller with Integrated Actuator

Integrated Pressure‑Based Control

Built‑in pressure and duct air temperature sensors continuously monitor system conditions to maintain optimal duct static pressure and stable VVT system performance.

Flexible Mounting & Installation

Designed for vertical or horizontal mounting and compatible with a wide range of VVT box damper shaft sizes and stroke angles, enabling adaptability across systems.

Simplified Commissioning & Balancing

A dedicated maintenance table allows quick setup, commissioning, and balancing, reducing startup time and simplifying ongoing service.

Integrated Actuator Design

Factory‑assembled actuator eliminates field mounting and wiring complexity while ensuring reliable damper control.

Control & Safety Functions

Primary air temperature and pressure sensors determine system operating mode to ensure proper operation during communication failures.
Air source leaving‑air temperature protection reduces the risk of heating or cooling lockouts caused by unacceptable discharge temperatures.
Control logic complies with ASHRAE 62.1 ventilation requirements.

System Operation

Supports stand‑alone or linked VVT system operation.
Includes Carrier airside linkage capability for coordinated system control.
Supports foreign‑language ASCII character sets.

Sensors & Inputs

Integrated thermistor‑type duct temperature sensor
Integrated pressure sensor

Communications

Functions as a Carrier communicating network device
High‑speed communications network operating at 38.4K baud

Document Name Description Document Type Language Action
Guide Specifications 3V VVT System Guide Specifications PDF English Download
Installation 33ZCBC-01 3V Control System VVT Bypass Controller PDF English Download
Product Data 3V™ControlSystem | Bypass Controller with Integrated Actuator PDF English Download
What is the primary purpose of the 33ZCBC‑01?

It controls bypass dampers in VVT systems to maintain proper duct static pressure and stable airflow.

Does this controller require a separate actuator?

No. The actuator is fully integrated and factory‑assembled, reducing installation time and wiring complexity.

Can the controller operate without network communication?

Yes. Built‑in sensors allow the controller to operate safely in stand‑alone mode if communication is lost.

Is this controller suitable for retrofit projects?

Yes. Flexible mounting options and integrated actuation make it suitable for both new installations and retrofits.

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