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  9. Downblast Vent, Belt Drive, 21-1/2 In
Dayton Downblast Vent, Belt Drive, 21-1/2 In 7A664 - main

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

  • Mfr # 7A664

  • Zoro # G2828253

product price: $2,158.99
/ea
Additional $100.00 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 #
7A664
Zoro #
G2828253
UPC #
-
Country of Origin
Multiple

Dimensions

Base Size - Roof Ventilators
30 in x 30 in
Dimension D
5 1/2 in
Wheel Dia.
21 1/2 in
Shaft Dia. Wheel End
3/4 in
Base Length
30 in
Dimension B
35 1/2 in
Overall Dia.
35 1/2 in
Base Height
1 3/4 in
Overall Height
36 1/8 in
Base Width
30 in
Dimension A
30 in
Dimension C
34 3/8 in
Base Square Size - Roof Ventilators
30" x 30"
Overall Diameter
35 1/2 in
Propeller Shaft Diameter
3/4 in
Housing Width
35.5 in
Damper Size
23 x 23 in
Overall Length
35 1/2 in
Overall Width
35 1/2 in
Housing Length
35.5 in
Wheel Diameter
21 1/2 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
1 1/2 hp
CFM @ 0.000-In. SP
6032
Mounting Location
Roof
CFM @ 0.250-In. SP
5682
Wheel Type
Backward Inclined
Speed Controllable
No
Recommended 12 In. Fixed Curb Item No.
4HX49
Motor HP
1-1/2
CFM @ 0.125-In. SP
5870
Housing Material
Aluminum
Item
Centrifugal Downblast Roof Exhaust Fan
CFM @ 0.875-In. SP
4698
CFM @ 0.625-In. SP
5124
Sones @ 0.250-In. SP @ 5 Ft.
18.9
Recommended 8 In. Fixed Curb Item No.
4HX41
Wheel Material
Aluminum
Max. Inlet Temp.
180 Degrees
Hz
60
Includes
Drive Package, NEMA 1 Junction Box
CFM @ 0.375-In. SP
5473
Assembled/Unassembled
Unassembled
Drive Package Included
Yes
Sones @ 0.500-In. SP @ 5 Ft.
18.1
Motor Voltage
208/230/460
CFM @ 1.250-In. SP
3751
Phase
3
RPM
1090
Max. BHP
1.56
Adj. 6 3/8"H Roof Curb Stock No.
4c454
CFM @ 0.500-In. SP
5301
CFM @ 1.000-In. SP
4450
Agency Compliance
AMCA Sound & Air, UL/cUL 705
Drive Type
Belt Drive
CFM @ 0.750-In. SP
4925
Adj. 12 3/8"H Roof Curb Stock No.
3C437
Sones @ 0.125-In. SP @ 5 Ft.
19.6
Bearing Type
Regreasable Pillow Block
Standards
AMCA Sound and Air, UL/cUL 705
High-Efficiency Motor
No
Maximum Fan Speed
1,090 RPM
Motor Location
Out of Airstream
Motor Speed
1,725 RPM
Base Shape
Square
Exhaust Airflow @ 0.500 in SP
5,301 cfm
Airflow @ 0.000 in SP
6,032 cfm
Features
Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure
Exhaust Airflow @ 0.375 in SP
5,473 cfm
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
Electrical Connection
Power Cord
Spark Resistant Construction Type
A
Nameplate Voltage
208-230/460V AC
Frequency
60 Hz
Includes Drive Package
Yes
Exhaust Airflow @ 0.125 in SP
5,870 cfm
Motor Horsepower
1 1/2 hp
Mount Type
Roof Curb
Safety Features
Birdscreen, Windband
Motor Enclosure
Open Dripproof
Current
4.8 to 4.8/2.4 A
Includes Motor
Yes
Assembly
Unassembled
For High-Static Pressure Applications
No
Exhaust Airflow @ 0.000 in SP
6,032 cfm
Resistance Properties
Weather Resistant
Maximum Static Pressure
1 1/4 in wc
Brake Horsepower
1 14/25 hp
Maximum Inlet Air Temperature
180 Degrees F
Exhaust Airflow @ 0.250 in SP
5,682 cfm
Compatible Curb Manufacturer Part Number
2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
Housing Material Fabrication
Spun
Application
Industrial and Commercial Applications
For Air Type
Clean Air

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 208-230/460V AC, Phase 3, 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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