Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms)
Available to order — dispatched on the lead time shown below.
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Retail prices include VAT.
For the ultimate in residential climate control, the Daikin 5MXM90N9 is a powerful multi-split outdoor unit capable of connecting up to five indoor units. This system is designed for large homes or small commercial offices where individual room control is essential. By using a single outdoor unit, you can maintain a clean exterior while providing tailored heating and cooling to every corner of your property. The unit features Daikin’s sophisticated inverter technology, which provides precise temperature control and significant energy savings compared to traditional systems. It is fully compatible with a wide range of Daikin indoor units, allowing you to mix and match styles to suit your interior decor. With its robust build and quiet operation, it is the perfect choice for those who refuse to compromise on comfort or aesthetics. Professional installation is required to ensure the system is correctly sized and commissioned for your specific property requirements.
Need it installed?
We'll match you with a local HVAC engineer.
Smart-home ready
Connects natively with the systems below — control by app or voice.
- Free UK mainland delivery on in-stock units
- Manufacturer warranty included
- 14-day returns
Technical documents & videos
More from Daikin →Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with Daikin — ask us and we will send the cut sheet with mounting and clearance figures.
Description
For the ultimate in residential climate control, the Daikin 5MXM90N9 is a powerful multi-split outdoor unit capable of connecting up to five indoor units. This system is designed for large homes or small commercial offices where individual room control is essential. By using a single outdoor unit, you can maintain a clean exterior while providing tailored heating and cooling to every corner of your property. The unit features Daikin’s sophisticated inverter technology, which provides precise temperature control and significant energy savings compared to traditional systems. It is fully compatible with a wide range of Daikin indoor units, allowing you to mix and match styles to suit your interior decor. With its robust build and quiet operation, it is the perfect choice for those who refuse to compromise on comfort or aesthetics. Professional installation is required to ensure the system is correctly sized and commissioned for your specific property requirements.
Compare similar units
Side-by-side specs for other multi-split system ac in a similar BTU range.
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Common questions about the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms)
How many BTU is the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms)?
The Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) has a cooling capacity of 30,000 BTU, suitable for Up to 100m² total.
What room size is the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) suitable for?
The Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) is recommended for rooms Up to 100m² total.
Can I install the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) myself?
No — this unit requires professional installation by a qualified F-gas engineer. Use our Find an Installer service to get matched with a local HVAC professional.
Is the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) smart-home compatible?
Yes — the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) supports Amazon Alexa, Google Home for app and voice control.
How long does delivery of the Daikin 5MXM90N9 Multi-Split Outdoor Unit (5 Rooms) take?
This unit is dispatched in 5-7 working days. Delivery is then 1–2 working days to most UK mainland addresses, and 3–6 working days into the EU.
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Mitsubishi ElectricAnnual energy savings estimate
How much this A++-rated unit could save versus a standard C-rated model, based on your usage.
This unit
243 kWh/yr
EER 13
Standard model
396 kWh/yr
EER 8
Est. saving
£41.09
152 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (30,000 BTU). Actual savings vary with room size, climate and usage patterns.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 10 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£2018
This AC / season
£673
You save / season
£1345
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 2491 kWh | £673 | Up to 300% | |
| Plug-in electric heater | 7474 kWh | £2018 | 100% | |
| Electric storage heater | 7474 kWh | £2018 | 100% |
Heat output estimated from this unit's 34,000 BTU/hr rating. A heat pump moves heat (COP ≈ 3), so it uses about a third of the electricity of a direct-electric heater for the same warmth. Actual savings vary with room size, insulation, tariff and usage. See the full comparison →
Share your savings
This heat-pump AC costs only £673/season to heat a room vs £2018 for an electric heater - that's £1345 saved. https://stockool.store/products/daikin-5mxm90n9-multi-split-outdoor-unit
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