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  9. Downblast Vent, Belt Drive, 21-1/2 In
Dayton Downblast Vent, Belt Drive, 21-1/2 In 7A572 - main

Downblast Vent, Belt Drive, 21-1/2 In

  • Mfr # 7A572

  • Zoro # G2330291

product price: $1,904.99
/ea
Item requires special delivery charges. A $100.00 per item surcharge will be applied.

Key Features

Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
Yes
Duty Rating - Roof Ventilators
Standard
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
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Specifications

Product Information

MFR #
7A572
Zoro #
G2330291
UPC #
00799471519479
Country of Origin
Multiple

Dimensions

Base Size - Roof Ventilators
30 in x 30 in
Overall Height
36 1/8 in
Overall Dia.
35 1/2 in
Base Height
1 3/4 in
Base Square Size - Roof Ventilators
30" x 30"
Shaft Dia. Wheel End
3/4 in
Wheel Dia.
21 1/2 in
Dimension C
34 3/8 in
Dimension A
30 in
Base Width
30 in
Base Length
30 in
Dimension D
5 1/2 in
Dimension B
35 1/2 in
Wheel Diameter
21 1/2 in
Damper Size
23 x 23 in
Propeller Shaft Diameter
3/4 in
Housing Width
35.5 in
Overall Diameter
35 1/2 in
Overall Length
35 1/2 in
Overall Width
35 1/2 in
Housing Length
35.5 in

Details

Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
Yes
Duty Rating - Roof Ventilators
Standard
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
Number of Speeds
1
Voltage - Roof Ventilators
115V AC/230V AC
Motor HP - Roof Ventilators
1 1/2 hp
CFM @ 0.000-In. SP
6032
Sones @ 0.500-In. SP @ 5 Ft.
18.1
CFM @ 0.125-In. SP
5870
Recommended 8 In. Fixed Curb Item No.
4HX41
Motor Voltage
115/230
Hz
60
CFM @ 1.250-In. SP
3751
Phase
1
Wheel Material
Aluminum
Drive Package Included
Yes
Max. BHP
1.56
Motor HP
1-1/2
Wheel Type
Backward Inclined
Housing Material
Aluminum
Mounting Location
Roof
Speed Controllable
No
Sones @ 0.125-In. SP @ 5 Ft.
19.6
CFM @ 0.375-In. SP
5473
Recommended 12 In. Fixed Curb Item No.
4HX49
Item
Centrifugal Downblast Roof Exhaust Fan
CFM @ 1.000-In. SP
4450
CFM @ 0.750-In. SP
4925
CFM @ 0.625-In. SP
5124
CFM @ 0.250-In. SP
5682
Assembled/Unassembled
Unassembled
CFM @ 0.500-In. SP
5301
Adj. 6 3/8"H Roof Curb Stock No.
4c454
Adj. 12 3/8"H Roof Curb Stock No.
3C437
CFM @ 0.875-In. SP
4698
Agency Compliance
AMCA Sound & Air, UL/cUL 705
Sones @ 0.250-In. SP @ 5 Ft.
18.9
Max. Inlet Temp.
180 Degrees
Includes
Drive Package, NEMA 1 Junction Box
RPM
1090
Drive Type
Belt Drive
Standards
AMCA Sound and Air, UL/cUL 705
Bearing Type
Regreasable Pillow Block
For Air Type
Clean Air
Includes Drive Package
Yes
Airflow @ 0.000 in SP
6,032 cfm
Mount Type
Roof Curb
Compatible Curb Manufacturer Part Number
2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
Application
Industrial and Commercial Applications
Sound Level
15.8 sones @ 1.250 in SP and 5 ft, 16.8 sones @ 1.000 in SP and 5 ft, 17.2 sones @ 0.875 in SP and 5 ft, 17.5 sones @ 0.750 in SP and 5 ft, 17.8 sones @ 0.625 in SP and 5 ft, 18.1 sones @ 0.500 in SP and 5 ft, 18.4 sones @ 0.375 in SP and 5 ft, 18.9 sones @ 0.250 in SP and 5 ft, 19.6 sones @ 0.125 in SP and 5 ft, 20.0 sones @ 0.000 in SP and 5 ft
Resistance Properties
Weather Resistant
Exhaust Airflow @ 0.500 in SP
5,301 cfm
Safety Features
Birdscreen, Windband
For High-Static Pressure Applications
No
Maximum Inlet Air Temperature
180 Degrees F
Assembly
Unassembled
Includes Motor
Yes
High-Efficiency Motor
No
Features
Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure
Spark Resistant Construction Type
A
Exhaust Airflow @ 0.375 in SP
5,473 cfm
Base Shape
Square
Electrical Connection
Power Cord
Exhaust Airflow @ 0.125 in SP
5,870 cfm
Exhaust Airflow @ 0.250 in SP
5,682 cfm
Motor Speed
1,725 RPM
Exhaust Airflow @ 0.000 in SP
6,032 cfm
Motor Horsepower
1 1/2 hp
Nameplate Voltage
115/230V AC
Housing Material Fabrication
Spun
Current
19.6/9.8 A
Motor Location
Out of Airstream
Motor Enclosure
Open Dripproof
Brake Horsepower
1 14/25 hp
Maximum Static Pressure
1 1/4 in wc
Frequency
60 Hz
Maximum Fan Speed
1,090 RPM

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Wheel Diameter 21 1/2 in, Base Diameter Not Applicable, Base Length 30 in, Base Width 30 in, Base Shape Square, Nameplate Voltage 115/230V AC, Phase 1, Motor Horsepower 1 1/2 hp, Exhaust Airflow @ 0.000 in SP 6,032 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, For Air Type Clean Air, Includes Drive Package Yes, Includes Motor Yes, Mounting Location Roof

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