Daikin · Model 4MXM80A9
4MXM80A (4-room multi-split outdoor unit)
A single Daikin outdoor unit that runs up to four indoor units, so one wall-mounted condenser can cool and heat a whole flat or small house. You pick the indoor unit style per room.
€2,600
List priceoutdoor unit only; indoor units and install extra (full 4-room system typically 5000-7000 EUR installed)
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Units like this are usually quoted and fitted by a specialist installer. Compare it against models you can buy today.
Sizing this system
This is a whole-home system: its rated cooling is shared across several indoor units or distributed through ductwork, so there is no single room it does or does not fit. An installer sizes each zone against that room (a Manual J calculation), which is why we do not print a room verdict here.
Installation cost
$5,000-15,000 fully installed depending on the number of zones (roughly $3,000-8,000+ for the multi-zone install on top of the equipment). A 2-room (2x1) setup sits near the lower end, a 4-5 room whole-home system near the top. The unit price you see here is hardware only; installation is the larger, separate cost.
A typical range for this system type, for comparison only, not a quote for this unit. The actual price depends on the line-set run, electrical work and access.
At a glance
Best for a whole apartment or small house wanting up to four rooms cooled and heated from one outdoor unit.
Performance
- Cooling capacity
- 8 kW · 27,300 BTU
- Heating capacity
- 9 kW
- Total coverage
- 60–100 m²
- SEER (cooling)
- 7.33
- SCOP (heating)
- 4.61
- Energy class (cooling)
- A++
- Energy class (heating)
- A+
- Annual energy (cooling)
- 382 kWh
Noise, size & features
- Model number
- 4MXM80A9
- Indoor noise
- 19 dB(A)quieter than a whisper
- Outdoor noise
- 61 dB(A)
- Indoor unit
- varies by chosen indoor units (e.g. Perfera wall unit 770x300x238 mm)
- Outdoor unit
- 734x974x408 mm (HxWxD)
- Refrigerant
- R32
- Wi-Fi / app
- Yes
- Outdoor unit needed
- Yes
What is good
- One outdoor unit can serve up to 4 separate rooms, saving wall space and facade clutter
- Reverse-cycle: efficient heating in winter as well as cooling in summer
- Daikin indoor mix-and-match: wall, floor, ducted or cassette units on the same system
- Quiet R32 inverter platform with whisper-mode indoor units down to 19 dB(A)
What to watch
- Outdoor unit is large and heavy (around 60-65 kg), needs a solid mounting position
- If the outdoor unit fails, all connected rooms lose cooling at once
- Full multi-room system cost is high once indoor units and labour are added
Installation & the rules that apply
This is a multi-split. Same F-gas certified-installer requirement and sub-750 GWP refrigerant rule as a single split, applied across a bigger system. Because it touches multiple rooms and routes pipes through the structure, it more often triggers planning or prior-declaration steps, freeholder, landlord or condominium and shared-wall consent, and neighbour distance and noise rules. Heritage and historic-centre restrictions apply to the outdoor unit just as for a single split, but the single shared condenser is often easier to get approved than several separate units.
Certified installer
R32
Common questions about the Daikin 4MXM80A (4-room multi-split outdoor unit)
- How loud is the Daikin 4MXM80A (4-room multi-split outdoor unit)?
- 19 dB(A) indoors, quieter than a whisper.
- How energy-efficient is the Daikin 4MXM80A (4-room multi-split outdoor unit)?
- Its efficiency rating is SEER 7.33.
- Do I need a professional to install the Daikin 4MXM80A (4-room multi-split outdoor unit)?
- Yes. As a multi-split it needs a certified installer. Usually needs permission.
- Does the Daikin 4MXM80A (4-room multi-split outdoor unit) heat as well as cool?
- Yes. It also heats, rated 9 kW of heating output.
More multi-split units around 8 kW
Fujitsu
AOYG30KBTA4 (Airstage 4-room multi-split outdoor unit)
Fujitsu's four-port Airstage outdoor unit earns an A++ rating for both cooling and heating, running up to four indoor units efficiently across a whole home.
€2,200
Hardware price
Mitsubishi Electric
MXZ-4F80VF (4-room multi-split outdoor unit)
Mitsubishi Electric's 4-port outdoor unit lets one condenser feed up to four indoor units, so you can air-condition several rooms without a separate box on the wall for each.
€2,400
Hardware price
Mitsubishi Heavy Industries
SCM80ZS-W
The Mitsubishi Heavy Industries SCM80ZS-W is an 8.0 kW R32 multi-split outdoor unit that feeds up to four indoor heads, letting you cool and heat several rooms from a single condenser. It is a workhorse choice for a whole apartment or a multi-room house extension.
€2,300
Hardware price