Drop In Compact Cassette FCU Cuts Retrofit Carbon With Zero Rework DC Compact Cassette FCU 5W Low Speed Draw 30 Fan Energy Cut

Refurbishment is the largest sustainability lever most portfolios still have, and the barrier is rarely ambition: it is that pulling an old cassette usually drags ceiling work, waste and programme with it. The Midea Compact Four-way Cassette Fan Coil Unit removes that barrier. A 575×575mm body drops straight into the standard 585mm ceiling grid used in commercial buildings worldwide, so the replacement is a swap rather than a construction event, with no grid cutting, no custom framing and no ceiling patching. Across the AC and DC range it covers 400-600 CFM and 2.98 to 4.78 kW of cooling, which is the capacity band most retrofit schedules of rates are actually made of.

At 204mm body height, and just 198mm on 3rd Generation DC models, the unit clears shallow voids that defeat standard cassettes, which is often the difference between a fabric-first retrofit and a ceiling rebuild. The 500mm drain pump (1200mm on 3rd Gen) removes condensate without slope work or structural drainage changes, and the integrated safety mesh protects technicians during filter service. The standard 360° panel delivers even distribution with no vane balancing at commissioning, so one less task sits between installation and a verified, balanced zone.

The DC inverter brushless version draws as little as 5W at low speed and cuts fan energy by up to 30%, which is the figure that turns a whole-floor replacement from a maintenance line into an energy project. Seven fan speeds via the KJR-75A controller let each room be balanced to its real load at handover, and 2-pipe or 4-pipe factory versions match whatever hydraulics the existing building provides, so no additional plant is introduced. All models run on standard 220-240V / 1Ph / 50Hz, and Hongtai supports chain-wide rollouts with OEM/ODM customisation covering custom voltages from 180-440V at 50/60Hz, project branding, and Modbus or BACnet protocols, plus steady spare-parts supply across the contract period. ERP and RoHS compliance is standard.

• 5W Low-Speed Draw (DC) — The lowest figure in the range; small zones stop being the hidden baseline load on a floor's meter.
• Up to 30% Lower Fan Energy — Turns whole-floor replacement from maintenance spend into a measurable energy project.
• 575 × 575mm Drop-In Body — Fits standard 585mm grids with zero rework; no ceiling material demolished or replaced.
• 204mm / 198mm Shallow-Void Height — Reaches older buildings where a ceiling rebuild would otherwise be unavoidable.
• 2–5 dB(A) Quieter DC Operation — Low-speed operation holds in guestrooms and clinics without occupant complaints.
• ERP and RoHS Compliant — One certification file covers the whole replacement programme.
• 500mm / 1200mm Drain Pump — Condensate handled without slope work or structural drainage changes.
• Modbus and BACnet via Hongtai OEM/ODM — Replacement units can be metered per floor from the day they are commissioned.

The AC version is the like-for-like swap: same day, same grid, lowest unit cost, and the right answer where the replacement budget is fixed by an insurance claim or a short refurbishment window. Where the owner will live with the energy bills, and especially where the building is being measured against a consumption baseline, the DC inverter brushless version is the stronger case: from 5W at low speed, up to 30% less fan energy, 2–5 dB(A) quieter, seven speeds via the KJR-75A, and 198mm height on 3rd Generation models for the shallowest voids. Dimensions, grid fit and pipe connections are identical, so both install the same way and the decision never touches the programme.

1. Office Suite Refurbishments — Drop-in replacement keeps tenant disruption in hours, with no demolished ceiling material to dispose of.
2. Hotel Guestroom Renovations — Compact height fits shallow bathroom-lobby ceilings; quiet DC operation protects guest experience.
3. Clinics and Treatment Rooms — Safety mesh and low-noise DC models suit healthcare compliance regimes.
4. Meeting Rooms and Small Offices — Right-sized 400-600 CFM avoids over-conditioning small zones that sit empty for hours.
5. Franchise and Chain Fit-Outs — One standardised unit across every site simplifies procurement, metering and spares holding.

• 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.

• compact cassette FCU energy saving
• 575x575 low carbon cassette
• DC cassette 5W low speed
• ERP compliant compact FCU
• green retrofit ceiling cassette
• shallow void cassette fan coil
• sustainable small zone HVAC
• cassette replacement no rework