Belmont Delivers Custom EC Axial Fan Solution for Spanish HVAC Manufacturer

– High Efficiency, Low Noise, Smart Control – Powering Next-Gen Heat Pumps and AHUs

Project Background

Our client is a well-established HVAC equipment manufacturer based in Spain, specializing in the development of heat pump units, rooftop air conditioners, and air handling systems (AHUs) for commercial and residential applications.

As new ErP 2022/2026 energy efficiency standards came into effect across Europe, they needed to upgrade to a fan system that offered:

● Higher energy efficiency

● Lower noise emissions

● Built-in control interfaces for BMS

● Compact, fully integrated structure

Time-to-market was critical, with a new product line planned for launch within 2 months.

Challenges Faced by the Customer

● Non-compliant AC fans: Their existing fans failed to meet updated ErP energy efficiency benchmarks

● Noise complaints increasing: End users in residential areas reported unacceptable noise from older fan systems

● Limited installation space: The customer required a compact, integrated fan system with minimal assembly work

● No remote control capability: Their HVAC units lacked smart modulation and fault feedback via BMS

● Tight schedule: Prototypes and production had to be delivered within 45 days for a trade show launch

Belmont’s Solution

☑ Selected Models:

● EC92-A450 EC Axial Fan – 450mm blade, 145W EC motor, ideal for low-noise low-speed applications

● EC102-A630 EC Axial Fan – 630mm blade, 360W EC motor, suitable for medium airflow systems

See full product details: HVAC EC Axial Fan Brochure (2024)

Why These Models Were Chosen

✪ Up to 59% fan system efficiency: CFD-optimized airfoil blades and integrated diffuser + guide ring improves static pressure and overall performance

✪ Ultra-quiet operation: Aerodynamic impeller with precision dynamic balancing reduces noise by up to 5.7 dB(A)

✪ Fully integrated assembly: Supplied with pre-mounted grille, flange, and airflow components – easy to install

✪ Smart EC control: Supports 0–10V, PWM, and MODBUS-RTU protocols for seamless integration with customer’s building control system

✪ High durability: Protected against moisture and corrosion; long-life bearings rated over 40,000 hours

Customization Services Provided

● Customized mounting plate and bolt pattern to match the client’s chassis

● Delivered MODBUS documentation in Spanish + labeled wiring diagrams

● Provided airflow-pressure and noise performance curves for product certification

● Supplied private-labeled nameplates per the customer’s branding requirement

Implementation Process

01. Technical alignment via video call – clarified performance targets, mounting structure, and control logic

02. Prototyping – samples delivered within 7 working days for in-house airflow + noise testing

03. Joint debugging – fine-tuned airflow direction and fan speed profiles to match AHU characteristics

04. Batch production – first 50 units shipped within 30 working days, fully certified and preassembled

Results & Measurable Benefits

★ Energy consumption reduced by 18%, ensuring ErP compliance

★ Sound level reduced by 5.7 dB(A), enhancing user comfort

★ Installation time cut by 30% thanks to plug-and-play fan design

★ Enabled BMS integration for smart modulation and remote fault reporting

★ On-time delivery enabled customer’s product launch at spring HVAC Expo

Client Testimonial

“Belmont’s engineering team provided outstanding support. Their EC fans exceeded expectations in performance, integration, and documentation – and they delivered everything on time. An ideal OEM partner.”

— Javier L., R&D Manager, HVAC Manufacturer (Spain)

Want to improve airflow performance in your next HVAC project?

Let’s talk: sales@belmont-tech.com