AHU EC fan energy‑saving retrofit upgrades and replaces traditional belt‑driven asynchronous fans which suffer high energy consumption, loud noise, frequent maintenance and poor speed‑regulation performance.
The original motors, belts and bearing assemblies are removed and replaced with EC permanent‑magnet direct‑drive fan modules. Without belt‑driven loss, transmission efficiency is greatly improved.
Equipped with intelligent EC drive system, it supports 0‑10V/PWM stepless intelligent speed regulation and can connect to BA building automation system. Air volume is adjusted automatically according to indoor load, temperature and humidity to realize on‑demand air supply.
Fan impellers go through precise dynamic‑balance calibration for low‑vibration and excellent low‑noise performance, completely eliminating abnormal noise and jitter caused by belts.
After retrofit, regular replacement of belts and bearings is no longer required, which greatly cuts operation and maintenance costs. It fits energy‑saving upgrade of various central air‑handling units in commercial buildings, factories, clean workshops and hospitals, and effectively reduces overall energy consumption of air‑conditioning systems.
