LG R32 Multi F MAX with LGRED° Outdoor Unit

Model: KUMXA481A

Performance Specifications

Parameter	Value
Cooling Capacity (Min.-Rated-Max., Btu/h)	10,800~48,000~58,000
Heating Capacity (Min.-Rated-Max., Btu/h)	12,420~52,500~59,000
Max. Heating Capacity at 17°F (Btu/h)	56,500
Max. Heating Capacity at 5°F (Btu/h)	52,500
Max. Heating Capacity at -4°F (Btu/h)	45,200
Max. Heating Capacity at -13°F (Btu/h)	39,200
Cooling COP @95°F (Rated)	3.84
Heating COP @47°F (Rated)	3.62
Cooling Nominal Test Conditions	Indoor: 80°F DB / 67°F WB; Outdoor: 95°F DB / 75°F WB
Heating Nominal Test Conditions	Indoor: 70°F DB / 60°F WB; Outdoor: 47°F DB / 43°F WB

Electrical Specifications

Parameter	Value
Power Supply (V/Hz/Ø)	208-230V, 60, 1
MOP (A)	40
MCA (A)	33.3
Cooling Rated Amps (A)	24.30
Heating Rated Amps (A)	24.30
Compressor (A)	23.0
Fan Motor (A)	1.30
Locked Rotor Amps (A)	22

Piping Specifications

Parameter	Value
Refrigerant Charge (lbs.)	9.262
Liquid Line Connection (in., O.D.)	Ø3/8 x 1
Vapor Line Connection (in., O.D.)	Ø3/4 x 1
Maximum Total Piping³ (ft.)	475.7
Min. / Max. ODU to IDU Piping (ft.)	32.8/229.6
Piping Lengths (no add'l refrigerant, ft.)	180.4
Additional Refrigerant Charge Main Pipe (oz. / ft.)	0.54
Additional Refrigerant Charge Branch Pipe (oz. / ft.)	0.22
Maximum Elevation between ODU and IDU (ft.)	98.4
Maximum Elevation between IDU and IDU (ft.)	49.2

Operating Range

Parameter	Value
Cooling (°F DB)	14 to 118
Heating (°F WB)	-13 to +64

Unit Data

Parameter	Value
Refrigerant Type	R32
Refrigerant Control	EEV
Sound Pressure (Cool / Heat) ±1 dB(A)¹	54/56
Net / Shipping Weight (lbs.)	218.3/239.2
Power Wiring: ODU→BDU, BDU→IDU (No x AWG)	3 x 14, 3 x 14
Comm. Wiring: ODU→BDU, BDU→IDU (No x AWG)	2 x 18, 2 x 18
Heat Exchanger Coating	Gold Fin™
Minimum No. of Indoor Units	2
Maximum No. of Indoor Units	8

Compressor

Parameter	Value
Type	Scroll
Quantity	1
Oil / Type	PVE

Fan

Parameter	Value
Type	Propeller
Quantity	2
Motor / Drive	Brushless Digitally Controlled/Direct
Max. Airflow Rate (CFM)	2,119 x 2

Features

Scroll (Variable Speed) Compressor
Auto operation / Auto restart
Integrated central control connection
Self diagnosis / Soft start
Defrost / Deicing
Low ambient cooling down to 14°F (-4°F with Wind Baffle Kit)
Restart delay (three [3] minutes)
Factory installed Drain Pan Heater

Piping System Limitations

Parameter	Value
Total piping length (ΣΑ + ΣΒ)	<475.7 feet
Main pipe (Outdoor Unit to Branch Distribution Units: A)	Minimum: 16.4 feet; Maximum (ΣΑ): <180.4 feet
Total branch piping length (ΣΒ)	<295.3 feet
Branch pipe (Branch Distribution Units to Indoor Units: B)	Minimum: 16.4 feet; Maximum: <49.2 feet
Elevation Differential (All Elevation Limitations are Measured in Actual Feet)	If outdoor unit is above or below indoor unit (h1): <98.4 feet Between the farthest two indoor units (h2): <49.2 feet Between branch distribution unit and farthest connected indoor unit(s) (h3): <32.8 feet Between branch distribution units (h4): <49.2 feet

Piping Sizes

Piping	Main Pipe A (inch)	Branch Pipe B
Liquid	Ø3/8	Depends on the size of the indoor unit piping.
Vapor	Ø3/4	Depends on the size of the indoor unit piping.

Required Accessories

2-Port BD Unit - PMBD3620ZR
3-Port BD Unit - PMBD3630ZR
4-Port BD Units - PMBD3640ZR / PMBD3641ZR

Optional Accessories

Power Distribution Indicator (PDI) Premium - PQNUD1S41
Mobile LGMV for Android® Smartphones / Tablets or for iOS® Tablets - PLGMVW100
LG Monitoring View (LGMV) for Computers - PRCTILO
Low Ambient Wind Baffle Kit - ZLABGP04A x 2

Controller Options

MultiSITE Communication Mgr.
AC Smart 5
ACP 5
ACP 5 BACnet® Gateway
LonWorks® Gateway

Certifications and Compliance

The LG R32 Multi F MAX system is designed to meet ENERGY STAR® criteria when properly matched with appropriate components. It is also AHRI CERTIFIED® under Standard 210/240 for Unitary Small HP.

Note: Proper sizing and installation of equipment are critical for optimal performance. For details, consult your contractor or visit www.energystar.gov.

General Notes

Acceptable operating voltage: 187V - 253V.
All power supply wiring to the ODU is field supplied, solid or stranded. The power wiring and the communication wiring from the ODU to the BDU, and from the BDU to the IDU is field supplied and must be stranded, shielded or unshielded (if shielded, it must be grounded to the chassis of the ODU only). All wiring must comply with applicable local and national codes.
Piping lengths are equivalent.
For continual product development, LG reserves the right to change specifications without notice.
Must follow installation instructions in the applicable LG installation manual.

Models: KUMXA481A Multi F MAX with Outdoor Unit, KUMXA481A, Multi F MAX with Outdoor Unit, MAX with Outdoor Unit, Outdoor Unit

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