Occupancy Sensing Cassette FCU Cuts Empty Room Energy Waste DC Cassette FCU with 4.5m Throw 30 Less Fan Energy BMS Ready

Open-plan floors are where terminal counts multiply: the same cassette repeats across the ceiling grid bay after bay, and every one of them adds its fan hours to the floor's consumption. The Midea Four-way Cassette Fan Coil Unit turns that repetition into something measurable. One chassis architecture spans 400–1050 CFM across the AC and DC range, with cooling capacities from 5.7 to 12.9 kW, so a whole floor can be specified, balanced and reported as a single equipment family. Classic four-outlet, 360° and NEW 360° panels all mount on the same chassis, which means a late design change costs a panel swap rather than a new unit, and the embodied carbon already ordered stays where it was planned.

The DC inverter brushless range is the version sustainability consultants want on the schedule: fan energy down by up to 30%, noise down 2–5 dB(A), and seven speeds for balancing each zone to the load it actually carries instead of running flat out. On 3rd Generation DC models, the optional Human Detect Sensor adds occupancy-based set-back, so empty meeting rooms and unlet guestrooms stop being conditioned at full output, while the same models reach ceilings up to 4.5m so double-height lobbies are served without oversizing the plant. Two-pipe and four-pipe factory versions match the building's hydraulics as designed, and the 750mm drain pump (1200mm on 3rd Generation DC) removes condensate without slope work or structural drainage changes.

Reporting belongs in the specification from day one. XYE and PQE ports are built in, and GW-MOD(A) / GW-BAC(D) gateways provide Modbus RTU and BACnet integration, so every cassette feeds the same energy dashboard the rest of the plant reports to. All models run on standard 220–240V / 1Ph / 50Hz supply, and Hongtai OEM/ODM support covers custom voltages from 180–440V at 50/60Hz, project branding and control protocols for export contracts. ERP and RoHS compliance is standard across the range, which keeps the certification file short when a green building submission is due.

• Up to 30% Lower Fan Energy (DC) — Brushless motor cuts terminal consumption across a whole floor plate, not just one bay.
• Occupancy Sensing on 3rd Gen DC — Automatic set-back in vacant zones; empty rooms stop drawing full conditioning energy.
• 2–5 dB(A) Quieter DC Operation — Low-speed set-backs hold without occupant complaints, so the energy strategy is actually sustained.
• 4.5m Ceiling Capability (3rd Gen DC) — High voids served without oversizing units or adding dedicated equipment.
• One Chassis, Three Panels — Late design changes cost a panel swap, not a new unit; fit-out material already ordered is not wasted.
• XYE / PQE Ports with Modbus and BACnet Gateways — Every cassette reports to one platform for terminal-level energy accounting.
• ERP and RoHS Compliant — Certification file ready for European tenders and green procurement review.
• 2-Pipe and 4-Pipe Factory Versions — Matches building hydraulics exactly, with no site adaptation or extra buffer equipment.

Read the metering requirement first. Where terminal load is a small share of the total and the tender is price-led, the AC version delivers compliant comfort with the lowest unit cost and universal spares. Where the floor is metered, the schedule mentions efficiency, or the owner reports energy intensity per square metre, the DC inverter brushless version is the defensible choice: up to 30% lower fan energy, 2–5 dB(A) quieter, seven speeds for balancing, and on 3rd Generation models occupancy sensing, 4.5m ceiling capability and native V8 VRF integration. Panels, pumps, pipe sizes and chassis dimensions are shared, so AC and DC units install identically and can be phased across a floor plate as budget allows.

1. Open-Plan Office Floors — Repeat grids metered as one family; DC balancing keeps each zone at the load it carries.
2. Retail Floors and Supermarkets — 360° panels distribute evenly across sales areas; 3rd Gen DC covers ceilings up to 4.5m.
3. Hotel Lobbies and Restaurants — Occupancy sensing trims runtime in intermittently used front-of-house zones.
4. Classrooms and Training Centres — Empty-room set-back removes the conditioning hours that show up worst in a school's energy report.
5. Clinics and Waiting Areas — Even four-way distribution supports low-speed operation without draught complaints from seated patients.

• CE Marking — European conformity for safety and electromagnetic compatibility.
• Eurovent Certified Performance — Third-party verified capacity and efficiency ratings.
• ERP Compliant — Meets EU Energy-related Products Directive requirements.
• RoHS Compliant — Restriction of Hazardous Substances directive conformance.
• GB/T 19232 — Chinese national standard for fan coil unit performance testing.

• energy efficient four way cassette FCU
• occupancy sensing fan coil unit
• DC cassette FCU 30% saving
• ERP compliant cassette FCU
• low carbon ceiling cassette
• BMS ready cassette fan coil
• fan coil for green building retrofit
• sustainable office HVAC terminal