DAIKIN ROUND FLOW CASSETTE
42 000 BTU of cooling from a panel in the ceiling
The Daikin FCAG125B round flow cassette sits above the ceiling with only its 950 mm square panel showing, and sends air out through 360°. Daikin rates the system at 12.1 kW of cooling (about 41 300 Btu/h) and 13.5 kW of heating.
It comes as a complete system: the FCAG125B indoor unit, the Sky Air Active Series AZAS125MV (single-phase) or AZAS125MY (three-phase) outdoor unit, the white BYCQ140EW decoration panel and a Madoka wired controller, all running on R32.
With 27.2 m³ of air a minute on high fan, it moves nearly twice the air of the 24 000 BTU system. Choose it for large open spaces where a smaller cassette would run flat out all afternoon.
Enough air to carry a showroom or a full dining room through a February afternoon.
WHERE IT WORKS
Showrooms, restaurants and large open-plan floors
The 42 000 BTU size suits a showroom, a restaurant dining room, a gym or studio floor, or a large open-plan office: rooms with a high heat load from people, lighting and equipment.
Air leaves through all four sides of the panel, and each flap can be set on its own, so a till, a kitchen pass or a reception desk can be kept out of the draught.
Daikin rates it at 12.1 kW, which suits around 75 to 110 m² as a rough guide. For a long, narrow space, two smaller cassettes spaced along the room often do a better job than one large one; send us the layout and we will advise.
CONTROL
Every flap set from a wired controller
Each of the four flaps can be fixed separately from the wired controller, so air can be kept off a desk, a till or a dining table without moving the unit. Five fan speeds plus auto, draught prevention and ceiling soiling prevention come built in.
A Madoka BRC1H52W7 wired controller is included. It adds a weekly timer, set-point limits and home-leave operation, which holds an empty home, office or shop at a set temperature.
A black panel, an auto-cleaning filter panel and panels with presence and floor sensors can be ordered instead of the standard white panel. Ask us for a quote.
OUTDOOR UNIT
Single-phase or three-phase, your choice
The 42 000 BTU system pairs the cassette with the Sky Air Active Series outdoor unit: the AZAS125MV on a single-phase supply or the AZAS125MY on three-phase. Choose the power supply in the menu above; the cassette, panel and controller are the same either way.
Most commercial premises at this size have three-phase power, and spreading the load across the phases is the usual recommendation. Single-phase is there for buildings that do not.
Daikin rates the pair at a seasonal efficiency of 5.40 (SEER) in cooling and 3.80 (SCOP) in heating.
INSTALLATION AND SERVICE
A built-in drain pump and a slim body
A drain pump is built in as standard and lifts condensate up to 675 mm, so the water can run to a drain well away from the unit.
The indoor unit is 246 mm tall and 840 mm square; below the ceiling, the panel is 950 mm square and 65 mm deep. Filters are reached from below by dropping the intake grille, and self-diagnosis points a technician to a fault.
A cassette has to be installed by a qualified installer who cuts the ceiling opening, hangs the unit from the slab and runs the piping, cabling and drain. Our installers cover the major South African cities and quote separately.
MADE FOR SOUTH AFRICAN POWER
Daikin South Africa stock
The system is supplied through Daikin South Africa for a 220–240 V single-phase supply or a 380–415 V three-phase supply, so the local Daikin warranty applies and parts come through Daikin’s South African network.
Auto-restart returns the system to its previous settings when the power comes back after load-shedding or an outage.
If you are unsure whether this is the right size, send us the room dimensions, ceiling height and how the space is used, and we will check it.
Daikin FCAG125B specifications
| System | FCAG125B indoor unit, AZAS125MV or AZAS125MY outdoor unit, BYCQ140EW panel, Madoka BRC1H52W7 controller |
| Cooling capacity | 12.1 kW (about 41 300 Btu/h) |
| Heating capacity | 13.5 kW |
| Seasonal efficiency | SEER 5.40, SCOP 3.80 |
| Indoor unit (H × W × D) | 246 × 840 × 840 mm |
| Decoration panel | 950 × 950 mm, 65 mm deep, white |
| Indoor airflow (high, cooling) | 27.2 m³/min |
| Indoor sound pressure (cooling, low / high) | 29 / 41 dBA |
| Air discharge | 360°, four individually controllable flaps, five fan speeds plus auto |
| Drain | Built-in drain pump, 675 mm lift |
| Outdoor unit | AZAS125MV (single-phase) or AZAS125MY (three-phase), Sky Air Active Series inverter |
| Functions | Draught prevention, ceiling soiling prevention, dry programme, home-leave operation, auto changeover, auto-restart, self-diagnosis |
| Options | Black or auto-cleaning panel, presence and floor sensor panel, Onecta Wi-Fi adaptor, fresh-air intake |
Figures from Daikin’s published data for the FCAG125B with the AZAS125 outdoor unit. Nominal cooling at 35 °C outside and 27 °C indoors.
How the 42 000 BTU cassette sits against the alternatives
The Daikin round flow cassette 36 000 BTU is the size down at 9.5 kW. The Daikin round flow cassette 48 000 BTU adds 1.3 kW and is rated more efficient in both cooling and heating.
Where there is no ceiling void, the largest Sky Air high-wall unit we list is the Daikin FAA100B at 9.5 kW, so a room this size on wall units needs two of them.
In a long space, two smaller cassettes such as a pair of 24 000 BTU units spaced along the room often do a better job than one large one.
Questions we are asked about the 42 000 BTU cassette
Very nearly. Daikin rates the FCAG125B system at 12.1 kW of cooling, about 41 300 Btu/h. The trade sells the 125 class as 42 000 BTU and every brand rounds the same way, so where you can, compare systems in kW.
As a rough guide, around 75 to 110 m² with a standard ceiling: a showroom, a restaurant, a gym floor or a large office. A long, narrow space is often better served by two smaller cassettes, so send us the layout and how it is used and we will advise.
The indoor unit is 246 mm tall and 840 mm square, so the ceiling void has to be deeper than 246 mm, with room for the hanger rods, piping and drain. Daikin’s installation manual gives the exact clearances, and the installer checks the ceiling on site. Below the ceiling, the panel is 950 mm square and 65 mm deep.
Use three-phase if the building already has it: the load is spread across the phases, and that is what most electricians recommend at this size. A home or small building on single-phase power can run the single-phase version without an upgrade. The cassette, panel and controller are the same either way.
Yes. The system includes the white BYCQ140EW decoration panel and a Madoka BRC1H52W7 wired controller. A black panel, an auto-cleaning filter panel and panels with presence and floor sensors can be ordered instead; ask us for a quote.
The Madoka controller on the wall handles everything day to day. For control away from home, Daikin offers an Onecta Wi-Fi adaptor for the round flow cassette as an extra. Ask us and we will quote the right adaptor for your system.
A drain pump is built in and lifts the water up to 675 mm, so the installer can run the drain to a suitable point rather than relying on a fall from the unit.
Yes. Auto-restart returns it to its previous settings when the power comes back.
No. A cassette has to be installed by a qualified installer, who cuts the ceiling opening, hangs the unit from the slab and runs the piping, cabling and drain. Our installers cover the major South African cities and quote separately.
This is Daikin South Africa stock, so Daikin South Africa’s local warranty applies. If anything goes wrong, you deal with us: we log the claim with Daikin South Africa and follow it up on your behalf.
Why Buy From EcoHub
Daikin Sales Partner (DSP)
We are an official Daikin Sales Partner. Winners of Daikin’s 2024 Summer Campaign, we joined Daikin in Japan in September 2025 for its Osaka Expo seminar and a visit to the Shiga Plant.
Installed by our installers
Experienced installers in all major South African cities, because a Daikin only performs as well as it is installed.
One point of contact
If anything goes wrong, you deal with us. We log and follow up warranty claims with Daikin South Africa on your behalf.
Genuine Daikin South Africa stock
Supplied through Daikin South Africa, so the full local warranty applies.
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