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  9. Downblast Vent, Belt Drive, 21-1/2 In
Dayton Downblast Vent, Belt Drive, 21-1/2 In 7A662 - main

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

  • Mfr # 7A662

  • Zoro # G1749456

product price: $1,921.99
/ea
Additional $315.00 delivery surcharge applies per item.
See details

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 #
7A662
Zoro #
G1749456
UPC #
-
Country of Origin
Multiple

Dimensions

Base Size - Roof Ventilators
30 in x 30 in
Base Width
30 in
Dimension D
5 1/2 in
Dimension B
35 1/2 in
Shaft Dia. Wheel End
3/4 in
Overall Height
36 1/8 in
Base Length
30 in
Base Square Size - Roof Ventilators
30" x 30"
Dimension C
34 3/8 in
Overall Dia.
35 1/2 in
Base Height
1 3/4 in
Dimension A
30 in
Wheel Dia.
21 1/2 in
Overall Width
35 1/2 in
Housing Length
35.5 in
Overall Diameter
35 1/2 in
Damper Size
23 x 23 in
Wheel Diameter
21 1/2 in
Overall Length
35 1/2 in
Propeller Shaft Diameter
3/4 in
Housing Width
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
208V AC/230V AC/460V AC
Motor HP - Roof Ventilators
3/4 hp
CFM @ 0.000-In. SP
4759
CFM @ 0.625-In. SP
3504
Agency Compliance
AMCA Sound & Air, UL/cUL 705
Includes
Drive Package, NEMA 1 Junction Box
Drive Package Included
Yes
RPM
860
CFM @ 0.875-In. SP
2459
Phase
3
Sones @ 0.500-In. SP @ 5 Ft.
11.8
CFM @ 0.500-In. SP
3811
CFM @ 0.375-In. SP
4068
Hz
60
Drive Type
Belt Drive
Recommended 8 In. Fixed Curb Item No.
4HX41
Speed Controllable
No
CFM @ 0.125-In. SP
4548
Adj. 6 3/8"H Roof Curb Stock No.
4c454
Mounting Location
Roof
Motor HP
3/4
Item
Centrifugal Downblast Roof Exhaust Fan
Sones @ 0.250-In. SP @ 5 Ft.
12.9
Adj. 12 3/8"H Roof Curb Stock No.
3C437
Housing Material
Aluminum
Motor Voltage
208/230/460
CFM @ 0.750-In. SP
3085
Wheel Type
Backward Inclined
Recommended 12 In. Fixed Curb Item No.
4HX49
Assembled/Unassembled
Unassembled
Wheel Material
Aluminum
Max. BHP
0.77
Sones @ 0.125-In. SP @ 5 Ft.
13.3
CFM @ 0.250-In. SP
4289
Max. Inlet Temp.
180 Degrees
Standards
AMCA Sound and Air, UL/cUL 705
Bearing Type
Regreasable Pillow Block
Exhaust Airflow @ 0.125 in SP
4,548 cfm
High-Efficiency Motor
No
Maximum Fan Speed
860 RPM
Motor Horsepower
3/4 hp
Resistance Properties
Weather Resistant
Electrical Connection
Power Cord
Brake Horsepower
77/100 hp
Motor Enclosure
Open Dripproof
Airflow @ 0.000 in SP
4,759 cfm
Nameplate Voltage
208-230/440V AC
For Air Type
Clean Air
Spark Resistant Construction Type
A
Housing Material Fabrication
Spun
Includes Drive Package
Yes
Application
Industrial and Commercial Applications
Motor Location
Out of Airstream
Maximum Static Pressure
7/8 in wc
Base Shape
Square
Mount Type
Roof Curb
Features
Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure
For High-Static Pressure Applications
No
Compatible Curb Manufacturer Part Number
2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
Exhaust Airflow @ 0.375 in SP
4,068 cfm
Exhaust Airflow @ 0.000 in SP
4,759 cfm
Frequency
60 Hz
Maximum Inlet Air Temperature
180 Degrees F
Safety Features
Birdscreen, Windband
Includes Motor
Yes
Assembly
Unassembled
Exhaust Airflow @ 0.250 in SP
4,289 cfm
Sound Level
11.1 sones @ 0.750 in SP and 5 ft, 11.4 sones @ 0.625 in SP and 5 ft, 11.4 sones @ 0.875 in SP and 5 ft, 11.8 sones @ 0.500 in SP and 5 ft, 12.4 sones @ 0.375 in SP and 5 ft, 12.9 sones @ 0.250 in SP and 5 ft, 13.3 sones @ 0.125 in SP and 5 ft, 14.1 sones @ 0.000 in SP and 5 ft
Exhaust Airflow @ 0.500 in SP
3,811 cfm

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 208-230/440V AC, Phase 3, Motor Horsepower 3/4 hp, Exhaust Airflow @ 0.000 in SP 4,759 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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