PRODUCT OVERVIEW
LG ARNU42GTMA4 — 4-way cassette · Standard
LG ARNU42GTMA4 has a rated cooling capacity of 12.3 kW (42,000 BTU/h). Recessed four-way cassette indoor units distribute air through a ceiling panel. Unit and decorative-panel tables are separate; body dimensions are not panel dimensions.
Key features
01
Design and function
Recessed four-way cassette indoor units distribute air through a ceiling panel. Unit and decorative-panel tables are separate; body dimensions are not panel dimensions.
02
Power input by fan speed
The catalogue lists ARNU42GTMA4 power input as 104 / 75 / 53 W in fan-speed order. This is indoor-unit input and excludes outdoor-unit power.
Indoor-unit power input excludes the outdoor unit’s power consumption.
ARNU42GTMA4 · Rated values from the manufacturer catalogue
Rated capacity3
Rated capacity · ARNU42GTMA4| Cooling capacity (kW) | 12.3 |
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| Cooling capacity (BTU/h) | 42,000 |
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| Heating capacity (kW) | 13.8 |
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Electrical & efficiency2
Electrical & efficiency · ARNU42GTMA4| Power supply | 220-230-240 V · 1 phase · 50/60 Hz |
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| Power input (H/M/L) · W | 104 / 75 / 53 |
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Airflow & sound2
Airflow & sound · ARNU42GTMA4| Sound pressure (H/M/L) · dB(A) | 44 / 41 / 38 |
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| Airflow (H/M/L) · m³/min | 30 / 27 / 24 |
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Dimensions & weight2
Dimensions & weight · ARNU42GTMA4| Dimensions H × W × D (mm) | 288 × 840 × 840 |
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| Net weight (kg) | 25.6 |
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Refrigerant & piping2
Refrigerant & piping · ARNU42GTMA4| Liquid pipe (mm) | Ø 9.52 (3/8) |
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| Gas pipe (mm) | Ø 15.88 (5/8) |
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Cooling capacity and electrical power input are different quantities. Check catalogue test conditions when selecting equipment. Sources & notes →
Applications & layout
Consider for offices, hotels, retail or multi-zone projects according to equipment type. Heat load, installation position and usage determine the appropriate solution.
Selection considerations
Check model codes, power supply, connection ratios, accessories and rating conditions. Actual capacity must account for piping length, height difference and working temperatures using LG documentation or selection software.
Overview referenceLG MULTI V · Indoor Units (EN)Features describe the product range; model-specific ratings appear in the specification table. Applications are suggestions based on equipment type.
SOURCE DOCUMENTATION
Catalogue & notes
Model specifications reference LG MULTI V · Indoor Units (EN) · PDF page 15.
Combined values retain the catalogue order for voltage, frequency or fan speed. Refer to the source-page notes before use.
Rated values depend on test conditions and system combinations. Confirm optional features against the supplied configuration. The source document and edition are recorded for each model on this page.
The Vietnamese and English editions use matching verified model codes; each language links to its corresponding catalogue. Dimensions are reordered from the manufacturer’s W × H × D to the website’s H × W × D.
Fan speeds retain H/M/L (High/Medium/Low) order; floor-standing units use SH/H/M/L (Super High/High/Medium/Low). A dash marks an unlisted speed. Refrigerant and compatibility must be checked against the selected outdoor unit.
