Exhaust Vent, 20 In - 4YU88
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Dayton
Exhaust Vent, 20 In - 4YU88
Axial Downblast Roof Exhaust Fans, Assembly Unassembled, Mounting Location Roof, Blade Diameter 20 in, Base Diameter Not Applicable, Base Length 30 in, Base Shape Square, Base Width 30 in, Maximum Airflow 3,957 cfm, Minimum Airflow 960 cfm, Maximum Motor Horsepower 3/4 hp, Minimum Motor Horsepower 1/4 hp, Minimum Motor Speed 795 RPM, Maximum Motor Speed 1,147 RPM, Maximum Static Pressure 3/4 in wc, Drive Type Not Applicable, For High-Static Pressure Applications No, For Air Type Clean Air
- Country of Origin:
- United States
- Item:
- Axial Downblast Roof Exhaust Fans
- Item - Roof Ventilators:
- Exhaust Ventilator
- Drive Package With Motor Included:
- No
- Drive Type - Roof Ventilators:
- Belt Drive
- Blade Dia.:
- 20 in
- Base Size - Roof Ventilators:
- 30 in x 30 in
- Type:
- Axial Downblast Less Drive Package
- Recommended 12 In. Fixed Curb Item No.:
- 2RB79
- Base Width (In.):
- 30
- Application:
- Industrial and Commercial Applications
- Agency Compliance:
- UL 705
- Dimension D (In.):
- 5-1/8
- Shaft Dia. Sheave End (In.):
- 3/4 in
- Propeller Dia. (In.):
- 20
- Adj. 6 3/8H Roof Curb Stock No.:
- 4c454"
- RPM Range:
- 795 to 1147
- Bearing Type:
- Regreasable Pillow Block
- Adj. 12 3/8H Roof Curb Stock No.:
- 2ZV83"
- Overall Dia. (In.):
- 35 1/4 in
- Dimension A (In.):
- 30
- Shaft Dia. Propeller End (In.):
- 1 in
- Dimension B:
- 35 1/4 in
- Motor HP Range:
- 1/4 to 3/4
- Recommended 8 In. Fixed Curb Item No.:
- 4HX41
- Dimension B (In.):
- 35-1/4
- Propeller Material:
- Steel
- Mounting Location:
- Roof
- Max. Inlet Temp. (Deg. F):
- 120 Degrees F
- CFM Range:
- 2742 to 3957 @0.0 Sp
- Dimension D:
- 5 1/8 in
- Housing Material:
- Aluminum
- Overall Height (In.):
- 30 1/2 in
- Requires:
- Roof curb for new installations
- Dimension A:
- 30 in
- Recommended Damper Size (In.):
- 23 x 23
- Speed Controllable:
- No
- Dimension C:
- 28 3/4 in
- Includes:
- NEMA 1 Junction Box
- Dimension C (In.):
- 28-3/4
- Base Height (In.):
- 1 3/4 in
- Recommended Damper Stock No.:
- 4HX67
- Overall Height:
- 30 1/2 in
- Overall Length:
- 35 1/4 in
- Standards:
- AMCA Air Rated, UL/cUL 705
- Overall Width:
- 35 1/4 in
- Features:
- Fully Rolled Baffle Bead for Stability and Ease of Transport With Spun Aluminum Hood Construction, Galvanized Steel Venturi, Inlet and Supports, NEMA 1 Junction Box Located in Motor Enclosure
- Includes Motor:
- No
- Electrical Connection:
- Power Cord
- Resistance Properties:
- Weather Resistant
- Assembly:
- Unassembled
- Maximum Inlet Air Temperature:
- 120 Degrees F
- Housing Length:
- 35.3 in
- Blade Design:
- Swept Steeply Pitched
- Motor Location:
- In Airstream
- Drive Type:
- Not Applicable
- Overall Diameter:
- 35 1/4 in
- Damper Size:
- 23 x 23 in
- Maximum Static Pressure:
- 3/4 in wc
- Mount Type:
- Roof Curb
- Cutout Length:
- 25.5 in
- Housing Width:
- 35.3 in
- Base Width:
- 30 in
- Base Diameter:
- Not Applicable
- Number of Blades:
- 5
- Maximum Motor Speed:
- 1,147 RPM
- Minimum Airflow:
- 960 cfm
- Number of Speeds:
- Not Applicable
- Base Height:
- 1 3/4 in
- Base Length:
- 30 in
- Compatible Speed Control:
- No
- Compatible Curb Manufacturer Part Number:
- 2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
- Blade Material:
- Steel
- Cutout Size:
- 25.5 in L x 25.5 in W
- Maximum Airflow:
- 3,957 cfm
- Minimum Motor Speed:
- 795 RPM
- Base Shape:
- Square
- Blade Diameter:
- 20 in
- For High-Static Pressure Applications:
- No
- Propeller Shaft Diameter:
- 3/4 in
- For Air Type:
- Clean Air
- Housing Material Fabrication:
- Spun
- Maximum Motor Horsepower:
- 3/4 hp
- Safety Features:
- Birdscreen, Windband
- Brake Horsepower:
- 13/50 hp, 17/50 hp, 13/25 hp, 39/50 hp
- Minimum Motor Horsepower:
- 1/4 hp
- Includes Drive Package:
- No
- Maximum Fan Speed:
- 1,147 RPM
- Package Quantity:
- 1
