LG Multi F DX MU5M40.U44 Commercial 5-Port Outdoor Unit 11.2kW
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Built for substantial UK residences and expansive light-commercial offices, the LG Multi F DX MU5M40.U44 outdoor condenser provides high-capacity climate conditioning across five distinct spaces. Delivering 11.2kW cooling and 12.5kW heating output, this system utilizes high-efficiency inverter compressor technology to easily overcome extensive pipe runs up to 145 metres total system length. Its heavy-duty construction includes dual-propeller heat rejection, low-noise nocturnal operating modes, and LG’s proprietary Ocean Black Fin coil protection that prevents galvanic oxidation in coastal environments. The outdoor unit manages diverse combinations of high-wall, cassette, ceiling-suspended, and ducted indoor terminals, giving full design flexibility to interior architects. Supported by smart controls, occupants enjoy integrated building temperature scheduling via the LG ThinQ mobile platform or commercial BACnet/Modbus interfaces. Certified F-Gas professional installation is required to perform system commissioning and multi-circuit nitrogen testing.
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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
Full Specifications
Description
Built for substantial UK residences and expansive light-commercial offices, the LG Multi F DX MU5M40.U44 outdoor condenser provides high-capacity climate conditioning across five distinct spaces. Delivering 11.2kW cooling and 12.5kW heating output, this system utilizes high-efficiency inverter compressor technology to easily overcome extensive pipe runs up to 145 metres total system length. Its heavy-duty construction includes dual-propeller heat rejection, low-noise nocturnal operating modes, and LG’s proprietary Ocean Black Fin coil protection that prevents galvanic oxidation in coastal environments. The outdoor unit manages diverse combinations of high-wall, cassette, ceiling-suspended, and ducted indoor terminals, giving full design flexibility to interior architects. Supported by smart controls, occupants enjoy integrated building temperature scheduling via the LG ThinQ mobile platform or commercial BACnet/Modbus interfaces. Certified F-Gas professional installation is required to perform system commissioning and multi-circuit nitrogen testing.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 12 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£2522
This AC / season
£841
You save / season
£1682
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 3114 kWh | £841 | Up to 300% | |
| Plug-in electric heater | 9342 kWh | £2522 | 100% | |
| Electric storage heater | 9342 kWh | £2522 | 100% |
Heat output estimated from this unit's 42,500 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 →