17
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
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Table 8: Four-Way Ceiling Cassette (3' x 3' TA Frames) Indoor Unit General Data, continued.
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codes. See page 18 for detailed electrical data.
This unit comes with a dry nitrogen charge.
All capacities are net with a combination ratio between 95-105%.
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Low ambient performance with LGRED° heat technology is included in Multi V 5 air source
units produced after February 2019.
1
Max power Input is rated at maximum setting value..
2
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.
3
Sound Power levels are tested in an anechoic chamber under ISO Standard 9614.
4
Communication cable between Main ODU to IDUs / HRUs to be 18 AWG, 2-conductor,
twisted, stranded, shielded. Ensure the communication cable shield is properly grounded
to the Main ODU chassis only. Do not ground the ODU to IDUs / HRUs communication
cable at any other point. Wiring must comply with all applicable local and national codes.
Model No.
ARNU243TAA4
ARNU283TAA4
ARNU363TAA4
ARNU423TAA4
ARNU483TAA4
Cooling Mode Performance
Capacity (Btu/h)
24,200
28,000
36,200
42,000
48,100
Max. Power Input
1
(W)
199
199
199
199
199
L/M/H Power Input at Factory Default (W)
24.7 / 31.1 / 40.0
26.1 / 35.2 / 45.5
31.1 / 43.4 / 64.7
43.4 / 64.7 / 85.8
53.1 / 66.8 / 100
Heating Mode Performance
Capacity (Btu/h)
27,300
31,500
40,600
43,800
51,200
Max Power Input
1
(W)
199
199
199
199
199
L/M/H Power Input at Factory Default (W)
24.7 / 31.1 / 40.0
26.1 / 35.2 / 45.5
31.1 / 43.4 / 64.7
43.4 / 64.7 / 85.8
53.1 / 66.8 / 100
Entering Mixed Air
Cooling Max (°F WB)
76
76
76
76
76
Heating Min (°F DB)
59
59
59
59
59
Unit Data
Refrigerant Type
2
R410A
R410A
R410A
R410A
R410A
Refrigerant Control
EEV
EEV
EEV
EEV
EEV
Sound Power
3
dB(A) (H/M/L)
47 / 45 / 42
48 / 46 / 42
51 / 48 / 44
54 / 51 / 48
56 / 52 / 50
Net Unit Weight (lbs.)
59.5
59.5
59.5
59.5
59.5
Shipping Weight (lbs.)
71.7
71.7
71.7
71.7
71.7
Grille Weight (lbs)
15.7
15.7
15.7
15.7
15.7
Grille Shipping Weight (lbs)
20.5
20.5
20.5
20.5
20.5
Communication Cable
4
(No. x AWG)
2 x 18
2 x 18
2 x 18
2 x 18
2 x 18
Fan
Type
Full 3D Turbo Fan Full 3D Turbo Fan Full 3D Turbo Fan Full 3D Turbo Fan
Full 3D Turbo Fan
Quantity
1
1
1
1
1
Motor/Drive
Brushless Digitally Controlled / Direct
Airflow Rate H/M/L/LL (CFM)
813 / 742 / 670 / 576 855 / 771 / 687 / 599 988 / 838 / 735 / 653 1,091 / 988 / 838 / 751 1,158 / 1,000 / 908 / 838
Piping
Liquid Line (in., O.D.)
3/8 Flare
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
5/8 Flare
Condensate Line (in., I.D.)
1
1
1
1
1