Indoor Supply Air Fan / EC Fan
SINCO Authorized Agent
Indoor Fan Coil Unit / EC Fan
EC DC Motor · High Efficiency · Stepless Speed Control
Powered by EC (Electronically Commutated) brushless DC motors, achieving far higher efficiency than traditional AC induction motors. Features built-in stepless speed control to precisely regulate airflow on demand. Low noise, long lifespan, and compact design make it the ideal energy-saving choice for indoor air supply and terminal HVAC upgrades.
EC DC Motor
High Efficiency EC
Stepless Control
0~100% Tuning
Low Noise
Quiet & Comfortable
Compact Size
Flexible Installation
EC vs AC MOTOR
Why is an EC Motor More Energy Efficient?
Traditional AC induction motors operate at fixed speeds and rely on dampers or belts to adjust airflow, leading to high energy loss. EC brushless DC motors feature integrated electronic controls and stepless speed modulation to supply air precisely as needed, saving substantial energy during partial-load conditions—the most common operating state for terminal HVAC systems.
- EC Electronic Commutation Motor — Efficiency far exceeds AC induction motors, maintaining high efficiency across all speed ranges
- Built-in Stepless Speed Control — Eliminates external VFDs and damper throttling, reducing regulation losses
- Low Heat & Low Noise — Extends bearing and component lifespan with minimal maintenance demands
- Seamless Control Integration — Supports 0-10V / Modbus signals for interlocking with the ESMC platform
Motor Efficiency Comparison (Diagram)
EC Brushless DC Motor ~90%
Traditional AC Induction Motor ~65%
30~50%
Part-Load Energy Savings
0~100%
Stepless Speed Range
* Illustrative values. Actual savings depend on airflow demand and operating conditions.
Core Features & Services
High-Efficiency EC Motor
Electronically commutated DC motor offering high efficiency, low heat output, and significant long-term energy savings.
Stepless Airflow Control
Precisely regulates airflow to match real-time load requirements, eliminating energy waste caused by over-ventilation.
Low Noise & High Comfort
Smooth and quiet operation, perfect for noise-sensitive office, healthcare, and hospitality environments.
Compact & Easy to Install
Tight structural profile and lightweight design offer high installation flexibility for space-constrained terminal setups.
Long Lifespan & Low Maintenance
Free from carbon brush wear with minimal heat generation, extending component lifespan and lowering maintenance costs.
Smart Control Integration
Supports standard control signals and seamlessly links with the ESMC platform to adjust speed based on IAQ and load.
Model Specifications Overview
| Model | Airflow (CMH) | Static Pressure (mmAq) | Motor (W) | Noise (dB-A) | Power Supply |
|---|---|---|---|---|---|
| EF-020 | ~2,000 | ~20 | 250 | ≤48 | 1Φ 220V |
| EF-035 | ~3,500 | ~25 | 500 | ≤52 | 1Φ 220V |
| EF-050 | ~5,000 | ~30 | 750 | ≤55 | 3Φ 380V |
| EF-080 | ~8,000 | ~35 | 1,500 | ≤58 | 3Φ 380V |
| EF-120 | ~12,000 | ~40 | 2,200 | ≤61 | 3Φ 380V |
| EF-180 | ~18,000 | ~45 | 3,700 | ≤64 | 3Φ 380V |
| EF-250 | ~25,000 | ~50 | 5,500 | ≤67 | 3Φ 380V |
| Custom Model | On Demand | On Demand | On Demand | Per Setup | On Demand |
* Note: The figures above are reference values under standard test conditions. Actual airflow, static pressure, and noise level vary based on installation setup. Refer to official catalog.
Target Applications
Commercial Offices
Office Space Ventilation
Healthcare Facilities
Wards & Clinics Ventilation
Hotels & Hospitality
Guest Rooms & Public Areas
Shopping Malls
Large Space Ventilation
Industrial Plants
Plant Ventilation & Air Exchange
Downloads & Documentation