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Fan Coil Units (FCUs)

  • Writer: Wix
    Wix
  • Jul 15
  • 2 min read

Updated: Aug 21

Fan Coil Units (FCUs) Air Conditioning in Luxury Apartments


Fan Coil Units (FCUs) provide discreet, space-saving cooling in many premium apartments. Tucked into ceilings, joinery, or bulkheads, these units draw chilled water or refrigerant across a coil, blowing cool air into the room through hidden grilles.

While they operate out of sight, FCUs play a critical role in shaping indoor air quality. Over time, filters, coils, fans, and drains can collect dust, moisture, and biological contaminants. Without regular maintenance, these can compromise not only system performance—but also occupant health.



 🔧 What Our FCU Service Covers


Our Planned Preventative Maintenance (PPM) for FCUs includes an intensive hygiene check alongside technical calibration to ensure your system is safe, clean, and high-performing:

  • Antibacterial Cleaning of Coils & Fan Blades


    We apply safe, HVAC-grade biocidal cleaning agents to coils and fans to eliminate bacteria, mould spores, and odours.

  • Filter Cleaning or Replacement


    Filters trap dust, pollen, and allergens—clogged ones reduce air quality and overload the system. We clean or replace them as needed.

  • Drain Line & Pump Disinfection


    We clear, flush, and disinfect condensate pumps and drainage trays to prevent standing water and bacterial build-up.

  • Sensor & Thermostat Checks


    We verify safe operation of condensate sensors and ensure temperature controls are functioning correctly.

  • PIC Valve & Actuator Testing


    Control valves are tested for responsiveness and leaks, ensuring consistent and accurate room temperature delivery.

  • Overall System Health Review


    We inspect internal components, fan motor condition, and all connections for integrity and hygiene risk.


🌟 Benefits to the High-End Occupier


Health & Indoor Air Quality

  • Reduces Microbial Exposure – Biocidal treatment prevents mould spores, bacteria, and fungi from building up inside the unit.

  • Cleaner, Fresher Air – Properly cleaned filters and coils improve air purity and reduce odours.

  • Allergy Relief – Eliminating dust, pollen, and bio-contaminants supports better respiratory health.

⚙️ System Performance & Energy Efficiency

  • Optimised Airflow – Clean fans and filters restore proper circulation and reduce strain on motors.

  • Lower Energy Bills – Dirt-free coils ensure efficient thermal transfer, meaning less energy is needed to cool your space.

  • Extended Equipment Lifespan – Reduced microbial growth and corrosion helps preserve fan motors, coils, and electronics.

🧩 Hidden, High-Risk Areas Addressed

  • Joinery & Bulkhead Units – Hidden pumps and ducts are disinfected and flushed—even where access is tight.

  • Silent, Reliable Operation – Clean internal components reduce rattling and vibration, maintaining peace and quiet.


🧠 Expert Insight

Studies show that damp, dust-laden fan coil systems can harbour bacteria, fungi, and allergens. These contaminants are then circulated through your living space unless actively removed through regular cleaning and disinfection.

Maintaining your FCUs is not just about comfort—it’s about well-being.

🧠 Key Insight

Failing to clean an FCU coil can increase cooling energy costs by 15–25% and cause fan motors to overheat. Clogged filters and dirty coils are two of the most common sources of reduced performance and indoor air quality.

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​167-169 Great Portland Street, London, England, W1W 5PF

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Sat-Sun: Emergencies Only

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MAINTAINMYHOME RESIDENTIAL LIMITED, registered as a limited company in England and Wales under company number: 13221838.

Registered Company Address: 167-169 Great Portland Street, London, England, W1W 5PF

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