Upblast Roof Exhaust Fan 20 inch

Main Features With RCU Series

This Fan Can Be Used As Smoke Fan
Working In High Temperature Environment
Full Mold, Aluminum Alloy Structure
Most Advanced Motor Cooling Of Blower In Its Class
Direct Drive And Belt Drive Are Available
Anti-explored Type Is Available
IEC60335 Report
ISO9001:2018 Controllable Standard
The Highest Working Environment Temperature Is 320F improve The
Configuration, The Maximum Working Environment Temperature Can
Reach To 572F.

CFM = 8300

HP = 2

The RCU20 delivers 8,300 CFM at 2 HP — 200 CFM more than the RCU18 2HP within the same motor class — through a 20-inch aluminum alloy upblast body. It is the appropriate choice when the duct design calls for a 20-inch connection at the roof termination point, or when the system’s resistance curve requires the larger impeller diameter to achieve the target airflow at 2 HP without overspeeding a smaller impeller.

The RCU20 sits at a practical crossover point in the RCU range: it delivers marginally more airflow than the RCU18 2HP at identical motor power, but its primary advantage is the 20-inch duct connection. When the building’s roof extract riser is already sized at 20 inches — a common design choice for kitchens exceeding 150 m² or exhaust systems serving multiple floors — the RCU20 connects directly without reducers, avoiding the pressure drop and turbulence that transitions introduce into high-velocity duct runs.

At 8,300 CFM, the RCU20 serves large commercial kitchen roof exhaust for restaurants with 250 or more seats, hotel all-day dining kitchen extract points, and smoke extract risers in commercial towers where the fire engineer has specified a 20-inch roof termination unit. The aluminum alloy construction and 572°F enhanced temperature rating make it compatible with smoke control system designations in buildings where the rooftop exhaust fan must maintain operation during the early stages of a fire event.

When the exhaust load sits between 6,200 and 8,300 CFM, both RCU18 variants cover the range. For loads exceeding 9,000 CFM that justify stepping to a 3 HP motor, the RCU24 3HP (11,600 CFM) is the next appropriate unit.

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