
Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit
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The Haier 5U90S2SS5FA is a powerful 9.0kW multi-split outdoor unit engineered to support up to five indoor units, making it the ultimate solution for comprehensive whole-home climate control. Designed for versatility, this unit allows you to connect a mix of indoor styles—such as wall-mounted units in bedrooms and concealed ducted units in living areas—all managed from one central outdoor point. This configuration is ideal for large residential properties or offices where space for external equipment is limited. The unit employs Haier’s latest inverter technology to deliver precise temperature regulation, significantly lowering energy consumption and operational noise. With its high heating and cooling capacity, it provides year-round comfort, effectively handling the unpredictable UK climate. The system is designed for seamless integration with smart home ecosystems, allowing users to monitor and adjust settings remotely via the hOn app. Its durable construction and efficient R32 refrigerant usage ensure long-term reliability and compliance with current environmental regulations, providing a sophisticated, high-capacity cooling and heating solution for demanding environments.
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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 Haier →Official Haier manual
The manufacturer's PDF for this model is being sourced and will be downloadable here.
Full Specifications
Description
The Haier 5U90S2SS5FA is a powerful 9.0kW multi-split outdoor unit engineered to support up to five indoor units, making it the ultimate solution for comprehensive whole-home climate control. Designed for versatility, this unit allows you to connect a mix of indoor styles—such as wall-mounted units in bedrooms and concealed ducted units in living areas—all managed from one central outdoor point. This configuration is ideal for large residential properties or offices where space for external equipment is limited. The unit employs Haier’s latest inverter technology to deliver precise temperature regulation, significantly lowering energy consumption and operational noise. With its high heating and cooling capacity, it provides year-round comfort, effectively handling the unpredictable UK climate. The system is designed for seamless integration with smart home ecosystems, allowing users to monitor and adjust settings remotely via the hOn app. Its durable construction and efficient R32 refrigerant usage ensure long-term reliability and compliance with current environmental regulations, providing a sophisticated, high-capacity cooling and heating solution for demanding environments.
Compare similar units
Side-by-side specs for other multi-split system ac in a similar BTU range.
Common questions about the Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit
How many BTU is the Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit?
The Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit has a cooling capacity of 30,700 BTU, suitable for Up to 100m².
What room size is the Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit suitable for?
The Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit is recommended for rooms Up to 100m².
Can I install the Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit 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 Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit smart-home compatible?
Yes — the Haier 5U90S2SS5FA 9.0kW Multi-Split Outdoor Unit supports Google Home, Amazon Alexa for app and voice control.
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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
249 kWh/yr
EER 13
Standard model
405 kWh/yr
EER 8
Est. saving
£42.05
156 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (30,700 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/haier-5u90s2ss5fa-9kw-multi-split-outdoor-unit
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