GYY-LMV-BAC series VAV controller features a 32bit micro-processor and an integral pressure sensor and an integral damper actuator for pressure-independent VAV Unit control.
The integral differential pressure sensor uses MEMS (Micro-electro-mechanical Systems) technology that makes the pressure sensor do to measure extremely small airflow rate of VAV unit, and less contamination in the pressure sensor , long-term stable, no influence for tube length, bidirectional flow measurement, excellent zero point stability, no zero point calibration required, position independent, maintenance-free.
The integral damper actuator uses BLDC (brushless DC) motor technology that makes the damper actuator do small size, light weight, long life, high efficiency, low noise, small vibration, no spark, high reliability, good stability, strong adaptability, simple maintenance and maintenance.
Using NFC (Near Field Communication) interface for VAV unit engineering setting. It saves a lot of human-power at factory and field engineering configuration.

• BACnet® VAV controller
• Standardized Control Applications for all most VAV control applications.
• With an analog input for CO2 sensor for energy saving control.
• NFC interface for VAV unit engineering configuration.
• MEMS technology based integral differential pressure sensor.
• BLDC motor technology based damper actuator.
• CE Marking certified product:
  GYY-LMV-BAC series VAV controller and the Room Unit conform to all the applicable standards of CE Marking.