Haier 2U50S2SM1FA-3 5.0kW Multi-Split Outdoor Unit
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The Haier 2U50S2SM1FA-3 is a compact and highly efficient 5.0kW multi-split outdoor unit, specifically designed to power two indoor units. This model is an excellent choice for smaller apartments or two-room configurations where space is at a premium but performance cannot be compromised. Featuring Haier’s advanced inverter technology, the unit provides rapid cooling and heating while maintaining whisper-quiet operation, making it ideal for residential environments. The use of R32 refrigerant ensures high energy efficiency, helping to reduce electricity consumption and carbon footprint. With its sleek, durable design, it is built to withstand the UK climate while providing consistent, year-round comfort. The system allows for independent control of each indoor unit, ensuring that every room is kept at the perfect temperature. This unit is a reliable, cost-effective entry point into the world of multi-split air conditioning, offering professional-grade climate control for modern living spaces.
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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
Downloads & specs
More from Haier →Manufacturer instructions
The Haier 2U50S2SM1FA-3 multi-split outdoor unit must be installed exclusively by an F-GAS certified professional to ensure safety, validate the manufacturer's warranty, and comply with legal regulations. The unit requires secure mounting on a level, vibration-free surface, typically using a dedicated outdoor wall bracket or ground stand. Refrigerant piping must be connected between the outdoor unit and the indoor units using high-quality copper tubing, followed by a mandatory vacuum process to remove moisture and air from the system. Electrical connections must be performed by a qualified electrician in accordance with local wiring codes. Before first power-on, the installer must perform a leak test on all joints. The system uses R32 refrigerant, which requires specific handling precautions due to its classification. Always refer to the specific technical manual provided with the unit for precise torque settings and wiring diagrams.
Fixed units must be installed by a qualified F-gas engineer. Find an installer — we'll match you with a local HVAC professional.
Full Specifications
Description
The Haier 2U50S2SM1FA-3 is a compact and highly efficient 5.0kW multi-split outdoor unit, specifically designed to power two indoor units. This model is an excellent choice for smaller apartments or two-room configurations where space is at a premium but performance cannot be compromised. Featuring Haier’s advanced inverter technology, the unit provides rapid cooling and heating while maintaining whisper-quiet operation, making it ideal for residential environments. The use of R32 refrigerant ensures high energy efficiency, helping to reduce electricity consumption and carbon footprint. With its sleek, durable design, it is built to withstand the UK climate while providing consistent, year-round comfort. The system allows for independent control of each indoor unit, ensuring that every room is kept at the perfect temperature. This unit is a reliable, cost-effective entry point into the world of multi-split air conditioning, offering professional-grade climate control for modern living spaces.
Compare similar units
Side-by-side specs for other multi-split system ac in a similar BTU range.
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BroughtonReznor
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NIBE
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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
138 kWh/yr
EER 13
Standard model
224 kWh/yr
EER 8
Est. saving
£23.28
86 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (17,000 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 5 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1068
This AC / season
£356
You save / season
£712
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1319 kWh | £356 | Up to 300% | |
| Plug-in electric heater | 3957 kWh | £1068 | 100% | |
| Electric storage heater | 3957 kWh | £1068 | 100% |
Heat output estimated from this unit's 18,000 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 →
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