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.
Model No.
ARNU363B8A4
ARNU423B8A4
ARNU483B8A4
ARNU763B8A4
ARNU963B8A4
Cooling Mode Performance
Capacity (Btu/h)
36,200
42,000
48,100
76,400
95,900
Max Power Input
1
(W)
800
800
800
800
800
L/M/H Power Input at Factory Default (W)
403 / 420 / 478
465 / 497 / 528
482 / 500 / 538
505 / 505 / 765
750 / 750 / 800
Heating Mode Performance
Capacity (Btu/h)
40,600
43,800
51,200
86,000
107,500
Max Power Input
1
(W)
800
800
800
800
800
L/M/H Power Input at Factory Default (W)
403 / 420 / 478
465 / 497 / 528
482 / 500 / 538
505 / 505 / 765
750 / 750 / 800
Entering Mixed Air
Cooling Max. (°F WB)
76
76
76
76
76
Heating Min. (°F DB)
2
59
59
59
59
59
Unit Data
Refrigerant Type
3
R410A
R410A
R410A
R410A
R410A
Refrigerant Control
EEV
EEV
EEV
EEV
EEV
Sound Pressure
4
dB(A) (H/M/L)
46 / 45 / 42
47 / 46 / 43
47 / 46 / 44
50 / 48 / 48
52 / 50 / 50
Net Unit Weight (lbs.)
192
192
192
192
192
Shipping Weight (lbs.)
222
222
222
222
222
Communication Cable
5
(No. x AWG)
2 x 18
2 x 18
2 x 18
2 x 18
2 x 18
Fan
Type
Sirocco
Sirocco
Sirocco
Sirocco
Sirocco
Motor
2
2
2
2
2
Housing
2
2
2
2
2
Motor/Drive
Brushless Digitally Controlled / Direct
Airflow Rate H/M/L (CFM)
Standard Mode
1,896 / 1,748 / 1,550 1,963 / 1,786 / 1,589 2,048 / 1,846 / 1,670 2,050 / 1,766 / 1,766 2,684 / 2,260 / 2,260
Airflow Rate H/M/L (CFM)
High Mode (Factory Set)
1,730 / 1,317 / 1,066 1,914 / 1,458 / 1,123 2,019 / 1,518 / 1,200 2,260 / 1,766 / 1,766 2,542 / 2,260 / 2,260
External Static Pressure (in. wg)
Standard Mode
0.35
0.35
0.35
0.59
0.59
External Static Pressure (in. wg)
High Mode (Factory Set)
0.70
0.70
0.70
0.87
0.87
Piping
Liquid Line (in., O.D.)
3/8 Brazed
3/8 Brazed
3/8 Brazed
3/8 Brazed
3/8 Brazed
Vapor Line (in., O.D.)
3/4 Brazed
3/4 Brazed
3/4 Brazed
3/4 Brazed
7/8 Brazed
Condensate Line (in., I.D.)
1
1
1
1
1
Table 6: Ducted High Static B8 Chassis Indoor Unit General Data.
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 Pressure levels are tested in an anechoic chamber under ISO Standard 3745.
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.
GENERAL DATA
Specifications
−
High-Static B8 Chassis
