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

Page: 12 / 176

GENERAL DATA
Base Rooftop DOAS
Table 3: Base Rooftop DOAS, continued.
LG Model AR-DR31125A AR-DR31130A AR-DR31135A AR-DR31143A
Design Airflow (CFM) 5,000 5,950 7,050 7,950
ESP (in. wg) 3 3 3 3
Entering Air Summer DB/WB (°F) 95/75 95/75 95/75 95/75
Entering Air Winter DB (°F) 0 0 0 0
Cooling Performance
Coil LAT DB/WB (°F) 55/54.7 54.7/54.3 54.9/54.6 54.8/54.5
Unit LAT DB/WB (°F) 83.9 82.8 82.6 82.8
Total Cooling Capacity (MBH) 357.3 430.9 505.3 571.6
Sensible Cooling Capacity (MBH) 220.4 263.9 311.6 351.6
Hot Gas Reheat Coil Capacity
(MBH)
156.1 180.3 211.5 240.5
Evaporator coil depth (rows) 5 5 6 6
Number of compressors 4 4 4 4
Compressor Type(s)
Digital Scroll /
Standard
Scroll
Digital Scroll /
Standard
Scroll
Digital Scroll /
Standard
Scroll
Digital Scroll /
Standard
Scroll
Fuel Natural Gas Natural Gas Natural Gas Natural Gas
Capacity Input (MBH) 500 500 600 700
Capacity Output (MBH) 400 400 480 560
LAT (°F) 74.1 74.1 63 65.2
Turndown Type Modulating Modulating Modulating Modulating
Turndown Ratio 4:1 4:1 4:1 5:1
Fan Data
Supply Fan Quantity 2 2 2 2
Supply Fan Wheel Speed (RPM) 1906 3102 3441 2292
Supply Fan Motor HP 3 5 5 5
Configuration
Outdoor Air Intake End End End End
Supply Air Discharge Bottom Bottom Bottom Bottom
Return Air Opening Bottom Bottom Bottom Bottom
Weight (lbs) 6,115 6,041 6,369 6,504
Filtration
Hood none none none none
Supply 2" MERV8 2" MERV8 2" MERV8 2" MERV8