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Occupancy-Aware Four-Way Cassette with Acoustic-Grade EEV Silencing Radar-Driven Demand Control Noiseless Refrigerant Routing and Seven-Step Fan Matching for the Modern Open Floor Plate
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Occupancy-Aware Four-Way Cassette with Acoustic-Grade EEV Silencing Radar-Driven Demand Control Noiseless Refrigerant Routing and Seven-Step Fan Matching for the Modern Open Floor Plate

Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
OEM; MIDEA
Certification
CB, ISO
Product Name:
Four-Way Cassette
Capacity Range:
2.2–14.0 KW
Pump Head (Standard):
1,200 Mm
EEV Control:
Self-calibrating Noise Suppression
Overflow Protection:
Water-level Switch (standard)
Communication:
HyperLink Up To 2,000 M
Power Architecture:
Independent Supply (partial Shutdown Tolerant)
Highlight:

DC inverter VRF cassette with acoustic-grade EEV

,

Occupancy-aware four-way cassette with radar control

,

Noiseless refrigerant routing VRF cassette

Product Description
Occupancy-Aware Four-Way Cassette with Acoustic-Grade EEV Silencing Radar-Driven Demand Control Noiseless Refrigerant Routing and Seven-Step Fan Matching
Radar-Driven Demand Control, Noiseless Refrigerant Routing, and Seven-Step Fan Matching for the Modern Open Floor Plate
When an open-plan floor plate hosts fluctuating occupancy from dawn to dusk, a static-output cassette wastes energy on unoccupied zones and under-serves crowded areas. The Midea V8 Four-Way Cassette solves this with an integrated millimeter-wave radar module that continuously scans for human presence—ramping output when the room fills and retreating to setback mode when it empties. Paired with electronic expansion valve noise cancellation that eliminates refrigerant hiss at the panel, this unit redefines what specifiers should expect from a ceiling cassette in the commercial VRF class.
The four-sector discharge geometry ensures no corner escapes coverage, while per-vane independence lets designers tailor the throw pattern to non-standard room shapes. Seven discrete fan steps give facility engineers the granularity to match airflow precisely to real-time thermal gain—neither over-delivering nor under-performing. Add the V8 family's full digital drainage suite—monitored pump, anti-sweat logic, and water-level fail-safe—and the Four-Way Cassette emerges as the most intelligence-dense ceiling unit in the portfolio.
Core Highlights
01 — Omnidirectional Coverage from a Single Central Point Four discharge vectors radiate outward from the ceiling plane, filling every corner of square or near-square rooms with conditioned air from one mounting location—minimizing the unit count required on each floor plate.
02 — Millimeter-Wave Occupancy Radar The embedded mmWave sensor distinguishes occupied from unoccupied states with high confidence. Upon vacancy detection, the unit transitions to a reduced-output setback profile; re-entry triggers an immediate return to active comfort mode. This autonomous demand-response loop harvests energy savings in spaces with unpredictable schedules—conference rooms, training centers, multi-use halls.
03 — EEV Noise Elimination Algorithm A dedicated control routine drives the electronic expansion valve through a self-calibrating adjustment cycle that suppresses refrigerant flow noise at the ceiling panel. Occupants below experience a consistently quiet environment without the intermittent hissing that undermines acoustic comfort in conventional cassette designs.
04 — Dual-Point Temperature Sensing Thermistors at both the wired controller and the indoor-unit chassis jointly construct a blended temperature reading that accounts for stratification and localized heat sources. The system responds to a more representative room condition rather than a single-point snapshot.
05 — Per-Vane Independent Steering Each discharge louver is individually addressable, allowing the four air vectors to be customized independently—closing off airflow toward unoccupied edges, columns, or glazing while maintaining full output toward the core occupied zone.
06 — Seven-Step Fan Discretization Seven distinct speed levels provide fine-grained airflow matching to actual thermal load conditions. During partial-load periods, stepping down the fan reduces both acoustic output and motor energy draw—compounding annual savings across a large installed base.
07 — Soft-Discharge Mode & Drain Protection The draft-free discharge mode routes air along the ceiling for radiant-style comfort, while the optional silver-ion drain pan delivers continuous bacteriostatic protection—together creating an environment that feels as healthy as it sounds.
Application Scenarios
Scenario Description
Open-Floor Commercial Offices Radial coverage eliminates perimeter dead zones; occupancy radar reduces after-hours waste
Conference & Boardrooms Radar-driven setback between meetings cuts energy without sacrificing readiness
Restaurant Dining Floors EEV silencing preserves conversational ambiance; even coverage maintains guest comfort across varying party sizes
Hotel Lobbies & Event Spaces Independent vane steering adapts throw patterns to changing furniture layouts and event configurations
Premium Retail Showrooms Consistent climate across the sales floor; setback mode activates during low-traffic periods
Certifications & Standards
• Eurovent — Certified performance data for European market compliance
• TÜV SÜD — Third-party verified safety and performance standards
• ISO 9001 — Quality management ensuring consistent manufacturing quality
• ISO 14001 — Environmental management system for responsible production
• ISO 45001 — Occupational health and safety standards across the product lifecycle
Technical Specifications
Parameter Four-Way Cassette
Capacity Range 2.2-14.0 kW
Air Distribution 360° four-sector discharge
Occupancy Detection mmWave radar (auto setback/active)
EEV Control Self-calibrating noise suppression
Temperature Sensing Dual-point thermistor blend
Fan Steps 7 discrete levels
Vane Control Per-vane independent addressability
Soft-Discharge Mode Available
Drain Pan Option Silver-ion
Pump Head (Standard) 1,200 mm
Overflow Protection Water-level switch (standard)
Mold Prevention Post-shutdown exchanger drying cycle
Bus Communication HyperLink, up to 2,000 m
Power Architecture Independent supply (partial shutdown tolerant)
Available Capacities & Pairing
Compatible with all V8 series outdoor units via HyperLink arbitrary topology communication.
Tags: 

VRF System,  

vrf ac system,  

vrf unit

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Products
PRODUCTS DETAILS
Products

DC Inverter VRF

DC Inverter Mini VRF

Rooftop Package Unit

Industrial Water Chiller

Air Cooled Modular Chiller

FCU Fan Coil Unit

Commercial Air Conditioner

Commercial AC Unit

Floor Standing Duct Type

CCU Compressor Condensing Unit

Commercial Air Conditioning Unit

60Hz American Air Handler

Wall Mounted Split Unit

Air Source Water Heater

Precision Air Conditioner
name
  • name
  • name
  • name
Occupancy-Aware Four-Way Cassette with Acoustic-Grade EEV Silencing Radar-Driven Demand Control Noiseless Refrigerant Routing and Seven-Step Fan Matching for the Modern Open Floor Plate
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
OEM; MIDEA
Certification
CB, ISO
Product Name:
Four-Way Cassette
Capacity Range:
2.2–14.0 KW
Pump Head (Standard):
1,200 Mm
EEV Control:
Self-calibrating Noise Suppression
Overflow Protection:
Water-level Switch (standard)
Communication:
HyperLink Up To 2,000 M
Power Architecture:
Independent Supply (partial Shutdown Tolerant)
Highlight

DC inverter VRF cassette with acoustic-grade EEV

,

Occupancy-aware four-way cassette with radar control

,

Noiseless refrigerant routing VRF cassette

Product Description
Occupancy-Aware Four-Way Cassette with Acoustic-Grade EEV Silencing Radar-Driven Demand Control Noiseless Refrigerant Routing and Seven-Step Fan Matching
Radar-Driven Demand Control, Noiseless Refrigerant Routing, and Seven-Step Fan Matching for the Modern Open Floor Plate
When an open-plan floor plate hosts fluctuating occupancy from dawn to dusk, a static-output cassette wastes energy on unoccupied zones and under-serves crowded areas. The Midea V8 Four-Way Cassette solves this with an integrated millimeter-wave radar module that continuously scans for human presence—ramping output when the room fills and retreating to setback mode when it empties. Paired with electronic expansion valve noise cancellation that eliminates refrigerant hiss at the panel, this unit redefines what specifiers should expect from a ceiling cassette in the commercial VRF class.
The four-sector discharge geometry ensures no corner escapes coverage, while per-vane independence lets designers tailor the throw pattern to non-standard room shapes. Seven discrete fan steps give facility engineers the granularity to match airflow precisely to real-time thermal gain—neither over-delivering nor under-performing. Add the V8 family's full digital drainage suite—monitored pump, anti-sweat logic, and water-level fail-safe—and the Four-Way Cassette emerges as the most intelligence-dense ceiling unit in the portfolio.
Core Highlights
01 — Omnidirectional Coverage from a Single Central Point Four discharge vectors radiate outward from the ceiling plane, filling every corner of square or near-square rooms with conditioned air from one mounting location—minimizing the unit count required on each floor plate.
02 — Millimeter-Wave Occupancy Radar The embedded mmWave sensor distinguishes occupied from unoccupied states with high confidence. Upon vacancy detection, the unit transitions to a reduced-output setback profile; re-entry triggers an immediate return to active comfort mode. This autonomous demand-response loop harvests energy savings in spaces with unpredictable schedules—conference rooms, training centers, multi-use halls.
03 — EEV Noise Elimination Algorithm A dedicated control routine drives the electronic expansion valve through a self-calibrating adjustment cycle that suppresses refrigerant flow noise at the ceiling panel. Occupants below experience a consistently quiet environment without the intermittent hissing that undermines acoustic comfort in conventional cassette designs.
04 — Dual-Point Temperature Sensing Thermistors at both the wired controller and the indoor-unit chassis jointly construct a blended temperature reading that accounts for stratification and localized heat sources. The system responds to a more representative room condition rather than a single-point snapshot.
05 — Per-Vane Independent Steering Each discharge louver is individually addressable, allowing the four air vectors to be customized independently—closing off airflow toward unoccupied edges, columns, or glazing while maintaining full output toward the core occupied zone.
06 — Seven-Step Fan Discretization Seven distinct speed levels provide fine-grained airflow matching to actual thermal load conditions. During partial-load periods, stepping down the fan reduces both acoustic output and motor energy draw—compounding annual savings across a large installed base.
07 — Soft-Discharge Mode & Drain Protection The draft-free discharge mode routes air along the ceiling for radiant-style comfort, while the optional silver-ion drain pan delivers continuous bacteriostatic protection—together creating an environment that feels as healthy as it sounds.
Application Scenarios
Scenario Description
Open-Floor Commercial Offices Radial coverage eliminates perimeter dead zones; occupancy radar reduces after-hours waste
Conference & Boardrooms Radar-driven setback between meetings cuts energy without sacrificing readiness
Restaurant Dining Floors EEV silencing preserves conversational ambiance; even coverage maintains guest comfort across varying party sizes
Hotel Lobbies & Event Spaces Independent vane steering adapts throw patterns to changing furniture layouts and event configurations
Premium Retail Showrooms Consistent climate across the sales floor; setback mode activates during low-traffic periods
Certifications & Standards
• Eurovent — Certified performance data for European market compliance
• TÜV SÜD — Third-party verified safety and performance standards
• ISO 9001 — Quality management ensuring consistent manufacturing quality
• ISO 14001 — Environmental management system for responsible production
• ISO 45001 — Occupational health and safety standards across the product lifecycle
Technical Specifications
Parameter Four-Way Cassette
Capacity Range 2.2-14.0 kW
Air Distribution 360° four-sector discharge
Occupancy Detection mmWave radar (auto setback/active)
EEV Control Self-calibrating noise suppression
Temperature Sensing Dual-point thermistor blend
Fan Steps 7 discrete levels
Vane Control Per-vane independent addressability
Soft-Discharge Mode Available
Drain Pan Option Silver-ion
Pump Head (Standard) 1,200 mm
Overflow Protection Water-level switch (standard)
Mold Prevention Post-shutdown exchanger drying cycle
Bus Communication HyperLink, up to 2,000 m
Power Architecture Independent supply (partial shutdown tolerant)
Available Capacities & Pairing
Compatible with all V8 series outdoor units via HyperLink arbitrary topology communication.
Tags: 

VRF System,

vrf ac system,

vrf unit

Henan Hongtai HVAC Equipment Co., Ltd.
NO. 1406, 14TH FLOOR, BUILDING 3, NO. 50, CHUANGFU XINCHENG, JINGGUANG ROAD STREET, ERQI DISTRICT, ZHENGZHOU CITY, HENAN PROVINCE, CHINA
Tel: +86 18703827920
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