R3G310-AN43-71: High-Power EC Ventilation
The R3G310-AN43-71 is a high-capacity 310mm centrifugal fan designed for demanding HVAC applications where energy efficiency is non-negotiable. Powered by a robust M3G084-FA EC motor, this unit delivers exceptional airflow performance with minimal power consumption. The backward-curved RadiCal impeller is engineered to handle high static pressures, making it ideal for air handling units (AHUs) with dense HEPA filtration or long duct runs. The integrated electronics allow for direct connection to 200-240 VAC mains, with internal conversion for the DC motor core, providing soft-start capabilities and active power factor correction (PFC).
Detailed Technical Data
- Impeller Size: 310 mm.
- Technology: EC (GreenTech).
- Voltage: 200-240 VAC (Single-phase).
- Power Input: Approx. 450 – 500 W.
- Control: 0-10V Analog / PWM.
- Protection: Over-temperature, Locked-rotor, Phase failure.
Engineer’s Maintenance Guide
Lifecycle State: Active. Diagnosis: If the fan speed fluctuates, check the stability of the 0-10V control signal; shielded cable is recommended to prevent EMI interference. If the fan trips, the internal error relay (if equipped) will open. Check for blocked airflow causing motor overheating, although the EC logic usually derates speed to protect itself before stopping. Installation Advice: Ensure the inlet cone (typically part no. 96358-2-4013 or similar) is centered. Misalignment causes noise and reduces efficiency by 15%. Compatibility: Fully compatible with TIA Portal via analog output cards. It enables «Demand Controlled Ventilation» (DCV), adjusting speed based on CO2 sensors or occupancy, drastically reducing building OPEX.
| Metric | Performance |
|---|---|
| Max Speed | 2850 RPM |
| Airflow | 3000+ m³/h |
| Current | 2.2 – 2.5 A |
| Temp Range | -25°C to +60°C |
Why R3G310?
The «71» suffix often indicates a specific revision with optimized electronics for lower harmonic distortion (THD), making it grid-friendly for large installations.
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