Daikin FDMF18AVMK concealed ceiling ducted split
The FDMF18AVMK indoor unit pairs with the RZF18AVMK outdoor unit to provide cooling through ductwork while keeping the indoor equipment concealed above the ceiling. This R-32 inverter system offers 18,000 Btu/h nominal cooling at the catalogue’s T1 50 Hz conditions. Its inverter swing compressor adjusts output as the cooling demand changes.
Cooling performance at 35°C and 46°C
| Indoor / outdoor model | FDMF18AVMK / RZF18AVMK |
|---|---|
| T1 cooling capacity — 50 Hz | 5.28 kW / 18,000 Btu/h |
| T1 power input — 50 Hz | 1.385 kW |
| T1 EER — 50 Hz | 13.00 (Btu/h)/W |
| T3 cooling capacity — 50 Hz | 4.48 kW / 15,300 Btu/h |
| T3 power input — 50 Hz | 1.700 kW |
| T3 EER — 50 Hz | 9.00 (Btu/h)/W |
T1 conditions: outdoor 35°C dry bulb, indoor 27°C dry bulb / 19°C wet bulb. T3 conditions: outdoor 46°C dry bulb, indoor 29°C dry bulb / 19°C wet bulb. Figures above are the catalogue’s 50 Hz ratings; see the downloadable catalogue for separate 60 Hz data. The maximum cooling outdoor temperature listed is 52°C; that limit is not a nominal capacity rating.
Ductwork and ceiling-space planning
The indoor casing measures 300 × 1000 × 700 mm (H × W × D), with bottom or rear return-air suction for different ceiling arrangements. Rated external static pressure is 30 Pa and maximum ESP is 50 Pa. Daikin’s automatic airflow adjustment selects a fan setting to suit duct resistance during commissioning, following the installation instructions. Allow service access and assess the full duct pressure loss when designing the system.
| Indoor airflow H/M/L | 635 / 530 / 441 CFM |
|---|---|
| Indoor sound pressure H/M/L | 33 / 29 / 26 dB(A) |
| Indoor unit weight | 34 kg |
| Power supply | 220–240 V, 1 phase, 50/60 Hz |
| Refrigerant / operation | R-32 / cooling only |
| Liquid / gas pipe connection | 9.5 mm (3/8 inch) / 15.9 mm (5/8 inch) |
| Maximum total piping / elevation | 50 m / 30 m |
| Controller | Optional wired remote controller |
Drainage, controls and maintenance
The series includes a built-in drain pump, with a catalogue-stated pumping height up to 1,125 mm, a washable antimicrobial filter and an antibacterial box in the drain pan. Auto-restart restores operation after a power interruption, while self-diagnosis displays error codes on the controller for servicing. Condenser blue-fin coating and protected PCB sensors form part of the stated corrosion protection.
The wired controller is optional. The brochure illustrates Madoka control and optional integration with Daikin central control systems; confirm the required controller and accessories for your installation.
Choosing an FDMF system in Dubai
Choose capacity from the building’s cooling load, ceiling space, duct resistance and available electrical supply. Compare the Daikin FDMF range or browse ducted split air conditioners. The Technical Downloads section above includes the original catalogue with model tables and installation features. Contact Coolwell on 800 26659355 for help with selection.
