Models 50Nq Air Delivery (Cfm) In 208V-Horizontal Flow Set-Up At Indicated External Static Pressure & Voltage (Sizes 018, 024, 030, 036, 048, 060); Models 50Nq Air Delivery (Cfm) In 230V-Horizontal Flow Set-Up At Indicated External Static Pressure & Voltage (Sizes 018, 024, 030, 036, 048, 060); Rated Airflow And Filter Sizes - Carrier 50NQ Installation, Start-Up And Service Instructions Manual