The design of the remote control may vary due to catalog updates.
Multisplit air conditioning 2×1 LG MU3R21 + 2 × EZ12CSN.CSJ1
To air condition 2 rooms with a single outdoor unit.
- Pipe
- 1/4″ / 3/8″
- Wi-Fi
- Yes, included.
- kcal/h
- ≈ 5.289
- Refrigerant
- R32
Description
To climate control 2 rooms with a single outdoor unit. This 2x1 LG combines 2 × EZ12CSN.CSJ1 and has a nominal cooling capacity of 5,289 frigories/h (6.15 kW) for the outdoor unit, shared when both are operating simultaneously. It includes indoor units of the same model: a comparable option for rooms with similar needs. Installation not included.
The capacity of the system is shared when multiple units operate simultaneously. Therefore, it is advisable to choose the combination based on the simultaneous use of the rooms, their size and orientation, as well as the layout of the pipes.
Wi-Fi is included to manage the equipment from the manufacturer's compatible application.
What is included in LG MU3R21 + 2 × EZ12CSN.CSJ1?
An exterior MU3R21 and 2 interiors from the Infinity range: 2 × EZ12CSN.CSJ1.
| Model | Component | Supply scope |
|---|---|---|
| MU3R21 | Multisplit outdoor unit 870 × 650 × 330 mm | 1 included |
| EZ12CSN.CSJ1 | Infinity wall-mounted indoor unit 837 × 308 × 189 mm; integrated Wi-Fi. | 2 included |
| LG Infinity wireless remote control | Wireless remote control from the range One remote control for indoor use. The design may vary due to catalog updates. | 2 included |
Installation, pipes, supports, and construction materials not included. The power of the outdoor unit is distributed among the indoor units.
Illustrative composition of the range, not to scale. The design of the control may vary due to catalog updates.
What to check before installing LG MU3R21 + 2 × EZ12CSN.CSJ1?
The choice of equipment does not replace the inspection of the installation by a qualified professional.
- Dimension each room according to its thermal load. The capacity of the outdoor unit is shared when multiple indoor units are operating.
- Connect 2 indoor units with 1/4″ / 3/8″ pipes and respect a total of 50 m and 25 m per branch.
- The system shares cold or heat mode; it does not allow cooling one room and heating another simultaneously.
- Check the service, drainage, refrigerant supply, and charging spaces with the LG manual.
Technical sheet: LG MU3R21 + 2 × EZ12CSN.CSJ1
- Brand
- LG
- Model and composition
- LG MU3R21 + 2 × EZ12CSN.CSJ1
- Supply scope
- 1 × MU3R21; 2 × EZ12CSN.CSJ1; 2 wireless remote controls. Wi-Fi integrated in each indoor unit.
- Installation
- Not included
- Availability and transport
- Price including VAT. Installation not included. Request the availability notice if it is out of stock. Not shipped to islands, Ceuta, Melilla, or abroad.
Installation at a glance
- Pipe · liquid / gas
- 1/4″ / 3/8″ For each interior EZ09/EZ12
- Additional load
- 20 g/m Check load and review on PCB and manual.
Specifications and dimensions of the model
Capabilities, consumption, efficiency, noise, and dimensions of this set. The testing conditions and climate are part of each value.
- Nominal cold of the outdoor unit
- 6.15 kW
Shared capacity and efficiency · Shared capacity among the rooms - Nominal heat of the outdoor unit
- 7.03 kW
Shared capacity and efficiency · Shared capacity - kcal/h
- ≈ 5.289
Shared capacity and efficiency · Nominal cooling of the outdoor unit × 860 - SEER / SCOP from the catalog of the outdoor unit
- 8,50 / 4,65
Shared capacity and efficiency · Declared values with the LG test combination; they are not a label of this composition. - Number of rooms
- 2
Shared capacity and efficiency · One indoor unit per room - Combination of indices
- 12 + 12 = 24
Shared capacity and efficiency · Outdoor limit: 33 - EZ12CSN.CSJ1
- 837 × 308 × 189 mm
Dimensions of the units · 2 unit(s) - Exterior MU3R21
- 870 × 650 × 330 mm
Dimensions of the units - Refrigerant
- R32
Installation and refrigerant - Pipe · liquid / gas
- 1/4″ / 3/8″
Installation and refrigerant · For each interior EZ09/EZ12 - Maximum total length
- 50 m
Installation and refrigerant · Sum of the branches - Maximum length per branch
- 25 m
Installation and refrigerant - External / internal slope
- 15 m
Installation and refrigerant - Difference in height between interiors
- 7.5 m
Installation and refrigerant - Precharge: pipe length
- 30 m
Installation and refrigerant · Total reference length from the catalog - Additional load
- 20 g/m
Installation and refrigerant · Check charge and review on PCB and manual - External power supply
- Single-phase · 220–240 V · 50 Hz
Installation and refrigerant - Wi-Fi
- Included
Installation and refrigerant · LG ThinQ, in each interior - Wireless controls
- 2 included
Installation and refrigerant · The design may vary due to catalog updates. - Consumer warranty
- 3 years
Installation and refrigerant · Private use; according to LG Spain conditions
Before purchasing
- The energy class depends on the combination of tests. The cooling capacity shown comes from the nominal power of the outdoor unit, not from adding the indoor units. The refrigerant charge in kg should be checked on the inspection plate provided.
Documentation
Questions about LG MU3R21 + 2 × EZ12CSN.CSJ1
How many frigories does this 2x1 air conditioning unit have?
It has 5,289 frigories/h (6.15 kW) nominal from the outdoor unit. This is not 5,289 frigories for each room nor the free sum of the powers of the splits. The figure characterizes the outdoor unit; to determine what each room will receive, you need to consult the table for this combination and the working conditions.
Is it suitable for two rooms with a single outdoor unit?
Yes: the set includes 2 × EZ12CSN.CSJ1 and one outdoor unit. There are 2 indoor climate control points. To determine if it covers the specific rooms, it is necessary to check the load of each one and the simultaneous demand against the 6.15 kW nominal of the outdoor unit; counting rooms is not enough.
How do I choose the splits for each room?
This set includes splits of the same model. If one room heats up much more than the others, it is advisable to check if it needs a different split. Tell us the square meters of each room, where the sun hits the most, and which ones you will use at the same time. This way we can check if this combination fits with the rooms you want to air condition.
Can I add the cooling capacities of the splits to choose it?
No. In LG MU3R21 + 2 × EZ12CSN.CSJ1, the reference for the published shared capacity is 5,289 frigories/h (6.15 kW) nominal for the outdoor unit. The class figure or the indoor model number does not directly correspond to the delivered frigories. Without the distribution table for the combination, an independent figure per room is not guaranteed.
What does this multisplit include?
1 × MU3R21; 2 × EZ12CSN.CSJ1; 2 wireless remote controls. Wi-Fi integrated in each indoor unit.
Does each room have a remote control and Wi-Fi?
Yes. It includes 2 Infinity indoor units, each with a wireless remote control and integrated Wi-Fi.
Does it include installation?
No. The installation, pipes, supports, and construction materials are budgeted separately.
Can you make a reservation when there is no stock?
Press Reserve and leave your email to receive the availability notification. The form does not make a charge.
Services for your air conditioning
Multisplit air conditioning 2×1 LG MU3R21 + 2 × EZ12CSN.CSJ1