
Middle Static Duct Inverter FBA-CV2S
Daikin FBA-CV2S is a medium-static inverter ducted series for concealed installation and air outlets coordinated with the interior.

DAIKIN / SKY AIR
Daikin FDMRN-CXV1S9 is a medium-static non-inverter ducted series for a concealed indoor unit and outlets positioned around the room plan.
Models and technical specifications ↓Discuss this series ↗Place the controller and return-air path to reflect occupied-room conditions. Avoid heat sources at the sensing point, and check duct pressure and maintenance access.
DAIKIN / MODEL DATA
Select a code to view its specifications, and confirm the indoor/outdoor pairing before using the data for design.
| Specification | Unit | Manufacturer data |
|---|---|---|
| System data | ||
| System model combination | — | FDMRN55CXV1S9 / RR55DXY1S9 |
| Cooling capacity | kW | 16.1 |
| Cooling capacity | BTU/hr | 55,000 |
| Power input | W | 5,760 |
| Power supply | V/Ph/Hz | Supply from Outdoor380-415V / 3 Phase / 50Hz |
| Indoor unit | ||
| Indoor unit model | — | FDMRN55CXV1S9 |
| External static pressure | Pa | 147 / 120 / 90 / 69 |
| Fan speed settings | — | 4Step, Auto |
| Airflow rate | m3/min | 48.7 / 43.9 / 37.9 / 33.1 |
| Airflow rate | cfm | 1,720 / 1,550 / 1,340 / 1,170 |
| Sound level | dB(A) | 54 / 52 / 50 / 46 |
| Dimensions (H × W × D) | mm | 378 x 1,569 x 541 |
| Weight | kg | 56 |
| Drain connection size | mm | 19.05 |
| Outdoor unit | ||
| Outdoor unit model | — | RR55DXY1S9 |
| Sound level | dB(A) | 65 |
| Dimensions (H × W × D) | mm | 852 X 1,030 X 400 |
| Weight | kg | 105 |
| Liquid refrigerant pipe size | mm/inch/Hun | Ø9.5 mm |
| Gas refrigerant pipe size | mm/inch/Hun | Ø19.1 mm |
| Outdoor heat exchanger type | — | Fin tube(Copper) |
| Compressor type | — | Hermetically Sealed Scroll Type |
| Compressor motor output | W | 4,603 |
| Maximum piping length | m | 35 |
| Maximum height difference | m | 15 |
| Refrigerant | — | R-410A |
| Piping length without additional refrigerant | m | 7.5 |
| Factory refrigerant charge | kg | 2.8 |
Specifications apply to the selected model. Noise and airflow can vary with operating settings. Compare efficiency figures under equivalent test conditions. Matching cooling capacity alone does not establish suitability for replacing an existing unit.
The manufacturer lists sensors at the indoor unit and wired controller, with the reference selected in the settings. The installer should choose the point that represents the occupied area.
Calculate the heat load from room size, height, sunlight, occupancy and equipment. AirHub360 can then help check the model, power supply and outdoor-unit location.
AIRHUB360 / LET’S PLAN TOGETHER
Start with ceiling height, available ceiling void, equipment position and airflow direction. Then assess heat load, electrical supply, refrigerant and drain routes, and maintenance access. Our 4-way cassette family includes Round Flow for easier comparison of installation formats. Round Flow distributes air through 360 degrees, rather than just four directions.
LET’S TALK ABOUT YOUR SPACE
Tell us about your space and what you need. The AirHub360 team can help you plan the next step.