LONGWELL AC Double Inlet Forward Curved Centrifugal Fan, Double Inlet Blower Fan, for Fan Coil Units, AHU, FFU

Name: LONGWELL AC Double Inlet Forward Curved Centrifugal Fan, Double Inlet Blower Fan, for Fan Coil Units, AHU, FFU
Brand: Ningbo Longwell Electric Technology Co., Ltd.

Voltage DC Motor, AC Motor, EC Motor

ISO / CE / UL / ETL Factory & Test Lab OEM / ODM ebm-papst alternative

$ 45

Category: Fan Coil Unit Tags: AC Fan, Central Air Conditioning, Fan Coil Units

CategoryFan Coil Unit

TagsAC Fan Central Air Conditioning Fan Coil Units

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Need the exact model with a measured or digitised curve? This page describes the Fan Coil Unit range. The Fan Selector lists every LONGWELL fan coil unit model with airflow, static pressure, power, noise, drawing and datasheet.

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This product has acquired the relevant product qualification(s)/license(s) of certain applicable country/countries. View more

Highlights at a glance

High-Efficiency LONGWELL Fan Coil Units (EC/DC/AC)

Looking for a reliable factory source for HVAC components? LONGWELL delivers premium Fan Coil Units (FCU) designed for commercial air conditioning, cleanrooms, and custom ventilation systems. By manufacturing our own top-tier EC/DC centrifugal fans, we offer direct control over quality, lead times, and technical customization.

Energy-Saving EC/DC Motor Tech: Our units feature highly efficient brushless DC and EC motors. Reduce energy consumption while maintaining high static pressure and airflow. Fully compatible with 0~10VDC control signals for smart building integration.

Industrial-Grade Durability: Housings are constructed from premium galvanized steel plates or durable PA66 plastic. Engineered for S1 continuous operation mode with maintenance-free ball bearings to minimize replacement costs.

Extreme Environment Ready: Built to handle harsh industrial conditions. Selected models operate flawlessly in ambient temperatures ranging from -40°C up to 65°C.

Comprehensive System Protection: Integrated safety features include locked-rotor protection, soft start, line undervoltage defense, and thermal protectors.

Global Compliance: 100% export-ready. Fully certified with CE, RoHS, BSCI, and ISO standards to meet strict import regulations.

Custom R&D Capabilities (OEM/ODM):Whether you need standard drop-in replacements or a complete “0-to-1” bespoke design for the US market, our engineering team provides rapid prototyping and exact spec matching. We offer flexible configurations including specific IP ratings (IP20/IP24) and custom voltage/RPM adjustments.

About this supplier

LONGWELL is a globally recognized fan manufacturer,specializing in high-performance EC/DC/AC fans,blowers,and motor systems for HVACR applications.With over 20 years of export experience and millions of units produced annually,we deliver reliable airflow solutions to OEMs in more than 30 countries. Our extensive product range includes centrifugal fans,axial fans,cross-flow fans,forward curved blowers,and ECM motors widely used in AHUs,FFUs,purifiers,heating systems,and industrial ventilation.We are certified to ISO9001,ISO14001,BSCI, CE,UL/ETL,FCC,and RoHS standards,ensuring full compliance across global markets. As an innovation-driven company,Longwell integrates aerodynamic design,CFD simulation,and custom engineering to meet specific client needs.Backed by advanced R&D labs,flexible manufacturing,and a global sales network across 8 regions,we respond quickly with tailored fan solutions built for efficiency,durability,and compliance. Our 40,000 sqm Smart Factory produces 1M+ fans yearly with 100% balancing and performance testing. We have B&K noise lab, CFD simulation, aerodynamic test chamber, and robotic injection molding. Every fan meets declared air volume and pressure curve. We offer real OEM/ODM: custom cable length, connector, terminal coating, frame color, and private labeling. In-house mold shop cuts lead time by 3-5 weeks. Free pre-production samples with test reports for qualified buyers. Traceable batch management from raw material to finished goods. Each fan has a unique serial number. 12-month warranty and 48-hour video technical support. Audited by Fortune 500 HVAC brands. 92% customer retention rate. We are the actual manufacturer, not a trading company. Request a live video tour anytime. Partner with us for reliable, energy-saving fans.

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FAQs

Do you offer OEM or ODM customization for Fan Coil Units?

Yes. We are a direct manufacturer. Our engineering team supports full “0-to-1” bespoke designs, including custom voltages (115V/230V), specific IP ratings, and unique dimensions tailored to your local market requirements.

What is your Minimum Order Quantity (MOQ)?

For standard stock models, our MOQ is highly flexible to support your trial orders. For specific OEM designs or custom EC motor configurations, MOQ varies based on production requirements. Please contact our sales team to discuss details.

What is the standard lead time for bulk orders?

Our standard lead time is typically 15 to 25 days after deposit confirmation. For highly customized OEM projects or peak season volume runs, it may extend to 30-45 days. We provide transparent production schedules to protect your supply chain.

Are your HVAC products certified for strict import markets?

Absolutely. Our Fan Coil Units and motors carry CE, RoHS, and BSCI certifications, and are manufactured under strict ISO standards. This ensures total compliance with international safety regulations for smooth customs clearance.

Why should we choose EC motors over standard AC motors?

EC (Electronically Commutated) motors consume about 30% less energy than standard AC motors. They offer precise 0-10VDC speed control, generate less heat, operate much quieter, and significantly lower the total cost of ownership for end-users.

What is the warranty period for LONGWELL units?

We provide a solid 1-year standard warranty on our Fan Coil Units and motors. If any verifiable manufacturing defect occurs within this period, we will supply free replacement parts or new units according to our contract terms.

Can we equip the units with Carbon or HEPA filters?

Yes. While standard configurations use washable nylon or G3/G4 synthetic filters, we frequently customize units with high-grade Carbon filters for odor control or HEPA filters for cleanroom applications based on your exact project needs.

What ambient temperatures can these fan coil units handle?

Built with premium galvanized steel and maintenance-free ball bearings, our robust units are engineered for extreme environments. Most of our models run safely and continuously in ambient temperatures ranging from -25°C up to 60°C.

Additional information

type	Fan Coil Unit
Refrigerant	R410A, R32, R-404A, R134a, R-410A, R-32, R-12, R-22, R-717, R-744, R-290, R-600a, R-1234yf, R-1234ze, R404A, R290, R507, R407C, R417A, R600A, R22, R-407C, Water, NH3
Mounting Type	Ceiling Mount
fan motors type	AC
Motor Type	DC Motor, AC Motor, EC Motor
Filter Type	Activated Carbon Filter, Electrostatic Filter, High-Efficiency Particulate Air Filter, Magnetic Filter, Regular Filter, Washable Nylon Filter, Synthetic Fiber Filter – G3/G4, Carbon Filters), F5 Medium Filter, HEPA Filters