Commercial air handling unit ARNU123NJA4

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Overview
The LG Multi-Position Air Handler provides inverter-driven performance in a configurable ducted unit. It is designed for installations that require traditional ductwork while offering modulation and efficiency benefits from inverter technology.

Product Type
Ducted air handler

Models
Model Number | BTU (Cooling / Heating) | Status
ARNU123NJA4 | 12,000 / 13,500 | Active
ARNU183NJA4 | 18,000 / 20,000 | Active
ARNU243NJA4 | 24,000 / 27,000 | Active
ARNU303NJA4 | 30,000 / 34,000 | Active

Available Refrigerant / Capacity Options

• Refrigerant Type: R-32 (available option)
• BTU (Cooling / Heating) options: 12,000 / 13,500; 18,000 / 20,000; 24,000 / 27,000; 30,000 / 34,000; 36,000 / 40,000; 42,000 / 46,000; 48,000 / 54,000; 54,000 / 60,000

Key Points

• Designed for applications requiring traditional ducted infrastructure.
• Inverter technology enables capacity modulation and improved part-load efficiency.
• Configurable multi-position installation for flexibility on site and contractor preference.

Technical Specifications

• Brand: LG
• Commercial denomination: Multi-Position Air Handler
• Product type: Ducted air handler
• Technology: Inverter-driven
• Installation: Multi-position / configurable
• Refrigerant: R-32 (option listed)
• Available nominal capacities (Cooling / Heating): 12,000 / 13,500; 18,000 / 20,000; 24,000 / 27,000; 30,000 / 34,000; 36,000 / 40,000; 42,000 / 46,000; 48,000 / 54,000; 54,000 / 60,000
• Example model numbers listed: ARNU123NJA4, ARNU183NJA4, ARNU243NJA4, ARNU303NJA4 (status indicated as Active)
• Representative product image name reference: MPAHU_US_BlackSTS_Front