Choosing the right hydronic fan coil unit (FCU) can make or break your HVAC project. Whether you’re upgrading a commercial building, designing a new hotel, or retrofitting an office space, the right FCU ensures energy efficiency, thermal comfort, and system compatibility. In this article, we’ll guide you through key factors to consider when selecting a fan coil unit for your hydronic HVAC system.

Define Your Installation Type
The first step is understanding your space and architectural constraints. Common FCU installation types include:
Horizontal Concealed Fan Coil Unit: Installed above ceilings, ideal for open office spaces, luxury apartments, and modern interiors that require clean aesthetics.
4-Way Cassette Fan Coil Unit: Mounted in the ceiling grid, delivering air in all directions—perfect for hotels, meeting rooms, and retail areas.
Wall-Mounted or Exposed Units: Best suited for small residential areas or spaces without drop ceilings.

Match the FCU Type with Your HVAC System
Ensure the FCU you choose is compatible with your chilled water or hot water system. Most modern projects use hydronic cooling and heating, which provides stable, quiet, and energy-efficient performance.
You’ll also need to choose between:
2-pipe systems: For seasonal cooling or heating, suitable for mild climates or cost-effective projects.
4-pipe systems: Allow simultaneous heating and cooling in different zones—ideal for hotels, hospitals, and premium buildings.
Consider Capacity & Airflow Needs
FCUs vary in cooling/heating capacity and airflow (measured in kW and m³/h).
Choose a model based on:
Room size
Ceiling height
Occupancy levels
Fresh air requirement
For example, a FP-204 4-way cassette fan coil unit offers over 7kW of cooling, making it suitable for conference rooms or open-plan offices.

Noise Level Matters in Comfort Zones
Low-noise operation is critical for bedrooms, hotel suites, and workspaces. Choose units with sound-absorbing insulation, precision-balanced fans, and anti-vibration motor mounts. At YESNCER, all cassette fancoil and Horizontal concealed fan coil units undergo strict noise testing to maintain under 45 dB(A) at mid-speed.
Don’t Ignore Customization and Control Options
A professional project may require:
Wired / remote / RS485 / WiFi control
Fresh air intake compatibility
Drain pump (with float switch)
Customized panel size or finish
OEM branding / color / filter type
At YESNCER, we offer complete OEM/ODM services with fast delivery on both standard and customized fan coil units.

Conclusion
Choosing the right hydronic fan coil unit involves more than just capacity specs. You need to think about installation design, water system compatibility, sound performance, and smart controls.
With over 39 years of HVAC manufacturing experience and full certification (CE, ISO, CRAA), YESNCER provides a full range of fan coil units—including horizontal concealed, cassette type, and wall-mounted models—for projects across Europe, the Middle East, and South America.
Need help with model selection or custom specs? Contact our team for CAD support, technical sheets, and rapid quotation.