LG Multi F 2-Way Multi Split Outdoor Unit 4.7kW
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Designed for versatility and performance, the LG Multi F 4.7kW outdoor unit supports up to two indoor units, making it a perfect match for medium-sized apartments or semi-detached homes. This system excels in providing independent climate control, allowing users to set different temperatures for different rooms via the LG ThinQ app or compatible smart home systems. The unit features a high-efficiency compressor that adjusts its speed based on demand, reducing energy consumption and noise levels. Its compact design ensures it can be discreetly placed on a balcony or exterior wall, saving valuable space. Whether you need to combat the summer heat or provide efficient heating during the colder UK months, this reverse-cycle heat pump delivers consistent results. It is a reliable, long-term investment for those prioritising comfort, energy savings, and smart connectivity in their home environment. Professional installation is mandatory for this split-system unit.
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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 LG →Manufacturer instructions
The LG Multi F outdoor unit must be installed exclusively by an F-GAS certified engineer, as the system uses R32 refrigerant. Installation requires selecting a location with adequate ventilation and structural support to handle the unit's weight. The process involves mounting the outdoor unit, connecting the refrigerant piping between the outdoor and indoor units, and performing electrical wiring according to local regulations. Proper vacuum drying of the refrigerant lines is mandatory before opening the service valves to release the refrigerant. After installation, the system must be checked for leaks and verified for correct drainage. First power-on should only occur after a full system inspection. Always refer to the specific technical datasheet and installation manual provided with the MU2R17.U18A0 model for precise torque settings, wiring diagrams, and safety protocols.
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
Designed for versatility and performance, the LG Multi F 4.7kW outdoor unit supports up to two indoor units, making it a perfect match for medium-sized apartments or semi-detached homes. This system excels in providing independent climate control, allowing users to set different temperatures for different rooms via the LG ThinQ app or compatible smart home systems. The unit features a high-efficiency compressor that adjusts its speed based on demand, reducing energy consumption and noise levels. Its compact design ensures it can be discreetly placed on a balcony or exterior wall, saving valuable space. Whether you need to combat the summer heat or provide efficient heating during the colder UK months, this reverse-cycle heat pump delivers consistent results. It is a reliable, long-term investment for those prioritising comfort, energy savings, and smart connectivity in their home environment. Professional installation is mandatory for this split-system unit.
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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AUX
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Fral
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Carrier
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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
130 kWh/yr
EER 13
Standard model
211 kWh/yr
EER 8
Est. saving
£21.91
81 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (16,000 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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