15
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Specifications
−
High-Static M2 Chassis
Model No.
ARNU243M2A4
ARNU283M2A4
ARNU363M2A4
ARNU423M2A4
Cooling Mode Performance
Capacity (Btu/h)
24,200
28,000
36,200
42,000
Max Power Input
1
(W)
430
430
430
430
L/M/H Power Input at Factory Default (W)
34 / 43 / 67
57 / 88 / 123
88 / 123 / 184
136 / 193 / 231
Heating Mode Performance
Capacity (Btu/h)
27,300
31,500
40,600
47,000
Max Power Input
1
(W)
450
450
450
450
L/M/H Power Input at Factory Default (W)
34 / 43 / 67
57 / 88 / 123
88 / 123 / 184
136 / 193 / 231
Entering Mixed Air
Cooling Max. (°F WB)
76
76
76
76
Heating Min. (°F DB)
2
59
59
59
59
Unit Data
Refrigerant Type
3
R410A
R410A
R410A
R410A
Refrigerant Control
EEV
EEV
EEV
EEV
Sound Power
4
dB(A) (H/M/[email protected]” ESP)
54 / 53 / 53
64 / 61 / 57
65 / 62 / 60
66 / 65 / 63
Net Unit Weight (lbs.)
82.9
86.2
86.2
86.2
Shipping Weight (lbs.)
95.5
99.2
99.2
99.2
Communication Cable
5
(No. x AWG)
2 x 18
2 x 18
2 x 18
2 x 18
Fan
Type
Sirocco
Sirocco
Sirocco
Sirocco
Motor
1
1
1
1
Housing
2
2
2
2
Motor/Drive
Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM)
Standard Mode
640 / 520 / 435
892 / 770 / 645
1,021 / 844 / 695
1,262 / 1,087 / 917
Airflow Rate H/M/L (CFM)
High Mode (Factory Set)
673 / 512 / 425
845 / 676 / 528
1,031 / 845 / 676
1,260 / 1,076 / 888
External Static Pressure (in. wg)
Standard Mode
0.20
0.20
0.20
0.20
External Static Pressure (in. wg)
High Mode (Factory Set)
0.24
0.24
0.24
0.24
Piping
Liquid Line (in., O.D.)
3/8 Flare
3/8 Flare
3/8 Flare
3/8 Flare
Vapor Line (in., O.D.)
5/8 Flare
5/8 Flare
5/8 Flare
5/8 Flare
Condensate Line (in., I.D.)
1
1
1
1
Table 4: Ducted High Static M2 Chassis Indoor Unit General Data, continued.
EEV: Electronic Expansion Valve
Power wiring is field supplied and must comply with the applicable local and national
codes.
This unit comes with a dry nitrogen charge.
All capacities are net with a combination ratio between 95-105%.
Rated capacity is certified under AHRI Standard 1230. Ratings are subject to change
without notice. Current certified ratings are available at
www.ahridirectory.org
.
1
Max. power input is rated at maximum setting value.
2
Low ambient performance with LGRED° heat technology is included in Multi V 5 Air
Source Units produced after February 2019.
3
Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
4
Sound Power level is measured using rated conditions and tested in a reverberation room
per ISO 3741 standards.
5
All communication cable to be minimum 18 AWG, 2-conductor, twisted, stranded, shielded
and must comply with applicable local and national codes. Shield must be joined and
insulated throughout. Ensure the communication cable is properly grounded at the master
outdoor unit only. Do not ground the ODU-IDU communication cable at any other point.
