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 Life’s Good” is a registered trademark of LG Corp.
6
Dedicated Outdoor Air System (DOAS) Installation and Operation Manual
GENERAL DATA
Table 1: Dedicated Outdoor Air System General Data
Dedicated Outdoor Air System
ARND20BDAT2 ARND20BDAR2
Cooling Mode Performance
Capacity (Btu/h)
143,100 143,100
Heating Mode Performance
Capacity (Btu/h) (Main Coil)
59,900 59,900
Capacity (Btu/h) (Reheat Coil)
45,900 45,900
Entering Air
Cooling Max (°F DB/WB)
122/78 122/78
Heating Min (°F DB)
2.5 41
Unit Data
Refrigerant Type
1
R410A R410A
Refrigerant Control
EEV EEV
Sound Power dB(A)
84 84
Net Unit Weight (lbs)
725 600
Shipping Weight (lbs)
825 700
Communication Cable
2
4 x 18 4 x 18
Fan
Type
Backward Curved Plenum Backward Curved Plenum
Motor
1 1
Motor/Drive
ECM/Direct ECM/Direct
Airflow Rate (CFM)
2000 2000
External Static Pressure (in wg)
1.65 1.65
Airflow Range (CFM)
1200 - 2000 1200 - 2000
Piping (Main Coil)
Liquid Line (in, OD)
1/2 1/2
Vapor Line (in, OD)
1-1/8 1-1/8
Piping (Reheat Coil)
Liquid Line (in, OD)
1/2 1/2
Vapor Line (in, OD)
1-1/8 1-1/8
Condensate
Condensate Line (in, OD)
1 NPT 1 NPT
Actual discharge air temperatures may vary from discharge air temperature set-point due to changes in outdoor air processing loads.
EEV - Electronic Expansion Valve ECM - Electronically Commutated Motor
Power wiring is field supplied and must comply with the applicable local and national codes.
This data is rated 0 ft. above sea level, with 25 ft. of refrigerant piping per coil.
Main Coil Cooling capacity rating obtained with entering air of 95°F DB/75°F WB and leaving air of 52.9°F
DB, 52.5°F WB.
Main Coil Heating capacity rating obtained with entering air of 44°F DB and leaving air of 75°F DB.
Reheat Coil Heating capacity rating obtained with entering air of 54°F DB and leaving air of 86°F DB.
1
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.
2
All communication cable to be minimum 18 AWG, 4-conductor, stranded, shielded and must
comply with applicable and national code.
Power Supply (V/Hz/Ø): 208-230/60/3.
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