- Country of Origin:
- United States
- Item - Roof Ventilators:
- Downblast Ventilator
- Drive Package With Motor Included:
- Yes
- Duty Rating - Roof Ventilators:
- Standard
- Drive Type - Roof Ventilators:
- Direct Drive
- Mounting Location - Roof Ventilators:
- Roof
- Number of Speeds:
- 3
- Voltage - Roof Ventilators:
- 115V AC
- Motor HP - Roof Ventilators:
- 1/8 hp
- Base Size - Roof Ventilators:
- 19 in x 19 in
- CFM @ 0.000-In. SP:
- 717/888/1059
- CFM @ 0.500-In. SP:
- -/184/623
- Speed Control:
- 48C172
- Sones @ 0.250-In. SP @ 5 Ft.:
- 4.5/6.4/8.8
- Sones @ 0.125-In. SP @ 5 Ft.:
- 4.5/6.7/9.3
- Wheel Material:
- Aluminum
- CFM @ 0.375-In. SP:
- -/493/745
- Speed Controllable:
- Variable Speed
- RPM:
- 1050/1300/1550
- Recommended 8 In. Fixed Curb Item No.:
- 4HX38
- Motor HP:
- 1/8
- Hz:
- 60
- Phase:
- 1
- Drive Package Included:
- Yes
- CFM @ 0.125-In. SP:
- 570/780/969
- Overall Dia.:
- 21 3/4 in
- Drive Type:
- Direct Drive
- Housing Material:
- Aluminum
- Includes:
- NEMA 1 Junction Box
- Adj. 12 3/8H Roof Curb Stock No.:
- 2ZV82"
- Base Length:
- 19 in
- CFM @ 0.750-In. SP:
- -/-/-
- Assembled/Unassembled:
- Assembled
- Max. BHP:
- 0.04/0.07/0.12
- Agency Compliance:
- AMCA Sound & Air, CSA Certified Motor, UL/cUL 705
- Dimension B:
- 21 3/4 in
- CFM @ 0.625-In. SP:
- -/-/474
- Overall Height:
- 16 3/8 in
- Base Width:
- 19 in
- Dimension C:
- 14 5/8 in
- Mounting Location:
- Roof
- Adj. 6 3/8H Roof Curb Stock No.:
- 4c453"
- Wheel Dia.:
- 10 1/2 in
- Wheel Type:
- Backward Inclined
- Max. Inlet Temp.:
- 130 Degrees
- Motor Voltage:
- 115
- Dimension A:
- 19 in
- Base Height:
- 1 3/4 in
- Shaft Dia. Wheel End:
- 1/2 in
- Max. Operating Amps:
- 1.5/2/2.7
- Dimension D:
- 4 in
- Recommended 12 In. Fixed Curb Item No.:
- 2RB75
- Item:
- Centrifugal Downblast Roof Exhaust Fan
- Base Square Size - Roof Ventilators:
- 19 x 19""
- CFM @ 0.250-In. SP:
- 389/640/863
- Standards:
- AMCA Sound and Air, CSA, UL/cUL 705
- Application:
- Industrial and Commercial Applications
- Overall Width:
- 21 3/4 in
- Features:
- Features a Fully Rolled Windband Bead for Increased Stability and Easy Transport, Fresh Outside Air is Drawn in Under the Motor Cover to Maximize Motor Life, Nema 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design, Opt
- Overall Length:
- 21 3/4 in
- Propeller Shaft Diameter:
- 1/2 in
- Maximum Inlet Air Temperature:
- 130 Degrees F
- Mount Type:
- Roof Curb
- Housing Material Fabrication:
- Spun
- Motor Location:
- Out of Airstream
- Cutout Length:
- 14.5 in
- For High-Static Pressure Applications:
- No
- Cutout Size:
- 14.5 in L x 14.5 in W
- Base Diameter:
- Not Applicable
- Includes Motor:
- Yes
- Brake Horsepower:
- 1/25 hp
- Exhaust Airflow @ 0.250 in SP:
- 863 cfm
- Housing Length:
- 21.8 in
- Safety Features:
- Birdscreen, Windband
- Electrical Connection:
- Power Cord
- Sound Level:
- 4.5 sones @ 0.125 in SP and 5 ft, 4.5 sones @ 0.250 in SP and 5 ft, Fan RPM 1300
- Maximum Static Pressure:
- 5/8 in wc
- High-Efficiency Motor:
- No
- For Air Type:
- Clean Air
- Exhaust Airflow @ 0.125 in SP:
- 969 cfm
- Compatible Speed Control:
- 48C172
- Airflow @ 0.000 in SP:
- 1,059 cfm
- Includes Drive Package:
- Yes
- Frequency:
- 60 Hz
- Base Shape:
- Square
- Assembly:
- Assembled
- Compatible Curb Manufacturer Part Number:
- 2RB75, 2ZV82, 4C453, 4C670, 4HX38, 4HX46
- Exhaust Airflow @ 0.500 in SP:
- 623 cfm
- Motor Speed:
- 1,550 RPM
- Damper Size:
- 12 x 12 in
- Nameplate Voltage:
- 115V AC
- Motor Enclosure:
- Open Air Over
- Motor Horsepower:
- 1/8 hp
- Exhaust Airflow @ 0.000 in SP:
- 1,059 cfm
- Maximum Fan Speed:
- 1,550 RPM
- Current:
- 2.6/2.3/1.4 A
- Exhaust Airflow @ 0.375 in SP:
- 745 cfm
- Wheel Diameter:
- 10 1/2 in
- Housing Width:
- 21.8 in
- Spark Resistant Construction Type:
- A
- Mounting Orientation:
- Vertical
- Maximum Ambient Temperature:
- 130 Degrees F
- Overall Diameter:
- 21 3/4 in
- Package Quantity:
- 1