A+++ / A+ Multi-split system LG MU3R21 U21 – outdoor unit
- 21000 BTUcapacity
- up to 38 m²for a room of
- down to −18 °Cheats at outdoor temp.
- A+++ / A+energy class
- 36 monthswarranty
- Installation within 24 hours in Varna
- Delivery across Bulgaria
- 36-month warranty
- Free consultation
Моделът е за помещение до 38 м². Въведете площта на стаята.
Specifications
Main
- Brand
- LG
- BTU
- 21000
- Area (m²)Approximate, for standard ceiling height and insulation.
- 38 кв. м
- Cooling capacityMin. / rated / max.
- 1.1 / 6.2 / 7.3 kW
- Heating capacityMin. / rated / max.
- 1.2 / 7.0 / 7.8 kW
- Warranty
- 36 months
Efficiency
- Air conditioner energy classClass for cooling / heating.
- A+++ / A+
- SEERSeasonal cooling efficiency — the higher it is, the less electricity it uses.
- 8.5
- SCOPSeasonal heating efficiency: how many kWh of heat from 1 kWh of electricity.
- 4.4
- COPInstant heating efficiency (under standard conditions).
- 4.6
- Annual consumption
- 253 / 1655 kWh
- Power consumption
- 1–2 kW
Operating range
- Cooling temp.Outdoor temperatures at which the air conditioner cools.
- -10°C ~ +48°C
- Heating temp.Outdoor temperatures at which the air conditioner heats.
- -18°C ~ +18°C
Technical data
- Refrigerant
- R-32
- Power supply
- 1~/50/220-240
- Outdoor noise (dB)
- 49 dB(A)
- Outdoor dimensions
- 650 × 870 × 330 mm
Installation and delivery
Стандартен монтаж — 180,00 €
- Up to 3 m of copper piping
- Installation materials
- System vacuuming
- Commissioning
Choose “Air conditioner + installation” when ordering. Longer piping or non-standard installation — we'll clarify by phone.
Installation in VarnaDelivery across Bulgaria
Every shipment is insured. Terms and timeframes are described on the delivery page.
Delivery termsNot sure about your choice?
The consultation is free: we'll help you pick the capacity based on room area, insulation and how you'll use the air conditioner.
+359 886 392 424Description
LG · LG Multi Split series
One outdoor unit to air-condition several rooms
LG MU3R21 U21 is a multi-split outdoor unit from the LG Multi Split series with a capacity of 21,000 BTU — suitable for rooms up to 38 m².
- 21,000 BTUcapacity
- up to 38 m²room size
- A+++ / A+energy class
- down to -18 °Coutdoor operation
Why LG MU3R21 U21
The system cools and heats several rooms with only one outdoor unit installed.
Depending on the model, one outdoor unit supports two to five indoor units.
A variety of indoor units that complement the interior can connect to the system.
Pressure and temperature control helps reach the desired temperature faster and more precisely.
For rooms up to 38 m² — for example, a large living room or studio. For high ceilings, lots of glazing or a south-facing room, choose a higher capacity — we will advise you free of charge.
Seasonal cooling efficiency SEER 8.5, heating SCOP 4.4 — energy class A+++ / A+. According to the energy label, annual consumption is about 253 kWh for cooling and 1655 kWh for heating (average climate). Refrigerant R32. Warranty 36 months.
Video about LG (in Bulgarian)
Play video: Инверторна система LG Multi Split – гъвкаво климатизиране на няколко помещения с един външен модулИнверторна система LG Multi Split – гъвкаво климатизиране на няколко помещения с един външен модул · MAAT Engineering Ltd. (МЕ)
Frequently asked questions
How many rooms can I air-condition?
It depends on the outdoor unit model – in this series, one outdoor unit supports two to five indoor units.
Do I need an outdoor unit for each room?
No. The LG multi-split system uses one outdoor unit for all connected rooms.
What room size is LG MU3R21 U21 suitable for?
For rooms up to 38 m² with a standard ceiling height. For larger rooms, lots of windows or attic spaces, we recommend a higher capacity.
How much electricity does LG MU3R21 U21 use?
According to the energy label — about 253 kWh a year for cooling and 1655 kWh for the heating season (average climate). Actual consumption depends on the room and the settings.
Order LG MU3R21 U21 with professional installation by our team — free consultation and site survey, delivery across Bulgaria.
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