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
Specications − Mid-Static M1 Chassis
Table 8: Ducted Mid-Static M1 Indoor Unit General Data.
Model No. ARNU073M1A4 ARNU093M1A4 ARNU123M1A4 ARNU153M1A4 ARNU183M1A4 ARNU243M1A4
Cooling Mode Performance
Capacity (Btu/h)
7,500 9,600 12,300 15,400 19,100 24,200
Max. Power Input
1
(W)
190 190 190 190 190 190
L/M/H Power Input at Factory Default (W)
25 / 30 / 39 26 / 32 / 40 31 / 38 / 46 46 / 53 / 67 55 / 63 / 85 58 / 74 / 91
Heating Mode Performance
Capacity (Btu/h)
8,500 10,900 13,600 17,100 21,500 27,300
Max. Power Input
1
(W)
190 190 190 190 190 190
L/M/H Power Input at Factory Default (W)
25 / 30 / 39 26 / 32 / 40 31 / 38 / 46 46 / 53 / 67 55 / 63 / 85 58 / 74 / 91
Entering Mixed Air
Cooling Max. (°F WB)
76 76 76 76 76 76
Heating Min. (°F DB)
2
59 59 59 59 59 59
Unit Data
Refrigerant Type
3
R410A R410A R410A R410A R410A R410A
Refrigerant Control
EEV EEV EEV EEV EEV EEV
Sound Power4 dB(A)
(H/M/L, @0.24” ESP)
44 / 41 / 39 44 / 42 / 39 44 / 43 / 40 47 / 43 / 43 49 / 47 / 43 51 / 49 / 47
Sound Pressure5 dB(A)
(H/M/L, @0.24” ESP)
27 / 24 / 23 27 / 25 / 23 28 / 25 / 23 30 / 27 / 24 32 / 29 / 27 33 / 30 / 28
Net Unit Weight (lbs.)
56.0 56.0 56.0 56.0 56.0 59.0
Shipping Weight (lbs.)
67.0 67.0 67.0 67.0 67.0 70.0
Communication Cable
6
(No. x AWG)
2 x 18 2 x 18 2 x 18 2 x 18 2 x 18 2 x 18
Fan
Type
Sirocco Sirocco Sirocco Sirocco Sirocco Sirocco
Motor
1 1 1 1 1 1
Housing
1 1 1 1 1 1
Motor/Drive
Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM)
High Mode (Factory Set)
361 / 279 / 211 376 / 296 / 229 392 / 328 / 262 570 / 392 / 328 638 / 556 / 392 703 / 638 / 556
External Static Pressure (in. wg)
High Mode (Factory Set)
0.24 0.24 0.24 0.24 0.24 0.24
Piping
Liquid Line (in., O.D.)
1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 1/4 Flare 3/8 Flare
Vapor Line (in., O.D.)
1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 1/2 Flare 5/8 Flare
Condensate Line (in., I.D.)
1 1 1 1 1 1
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 AHRI 260.
5
Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
6
All communication cable to be minimum 18 AWG, 2-conductor, twisted, stranded, shielded
and must comply with applicable local and national codes. Ensure the communication
cable is properly grounded at the main outdoor unit only. Do not ground the ODU-IDU
communication cable at any other point.
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