LG AR-DE12-05A, Installation And Operation Manual

Page: 11 / 176

GENERAL DATA
Base Rooftop DOAS
Table 2: Base Rooftop DOAS, continued.
Model No. AR-DR22-15A AR-DR22-17A AR-DR22-20A AR-DR22-25A AR-DR22-30A
Design Airflow (CFM) 2900 3200 3700 4600 5100
ESP (in. wg) 3 3 3 3 3
Entering Air Summer
DB/WB (°F)
95/75 95/75 95/75 95/75 95/75
Entering Air Winter DB (°F) 0 0 0 0 0
Cooling Performance
Coil LAT DB/WB (°F) 54.8/54.6 54.7/54.5 54.3/54.2 54.6/54.4 54.6/54.3
Unit LAT DB/WB (°F) 84.7 83.4 82.3 82.3 81.9
Total Cooling Capacity
(MBH)
202.2 223.8 262.2 323.1 359.6
Sensible Cooling Capacity
(MBH)
128.4 141.8 165.7 204.5 227
Hot Gas Reheat Coil
Capacity (MBH)
93.6 99.1 111.9 137.6 150.8
Evaporator coil depth
(rows)
5 5 6 6 6
Number of compressors 2 2 2 2 2
Compressor Type(s)
Digital scroll /
Standard scroll
Digital scroll /
Standard scroll
Digital scroll /
Standard scroll
Digital scroll /
Standard scroll
Digital scroll /
Standard scroll
Heating
Fuel Natural Gas Natural Gas Natural Gas Natural Gas Natural Gas
Capacity Input (MBH) 300 400 400 500 500
Capacity Output (MBH) 240 320 320 400 400
LAT (°F) 76.6 92.6 80.1 80.5 72.6
Turndown Type Modulating Modulating Modulating Modulating Modulating
Turndown Ratio 4:1 4:1 4:1 4:1 4:1
Supply Fan Data
Fan Quantity 1 1 1 1 1
Wheel Diameter (in) 20 20 20 20 22
Wheel Speed (RPM) 1591 1622 1702 1671 1777
Motor HP 3 3 3 5 5
Configuration
Outdoor Air Intake End End End End End
Supply Air Discharge Bottom Bottom Bottom Bottom Bottom
Weight (lbs) 3412 3487 3633 3697 3796
Filtration
Hood None None None None None
Supply 2" MERV 8 2" MERV 8 2" MERV 8 2" MERV 8 2" MERV 8
Note:

Capacity Data above may change if entering air temperatures, leaving air temperatures (LAT), or airflow rates are varied.

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.