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  9. Downblast Vent, Belt Drive, 24-1/2 In
Dayton Downblast Vent, Belt Drive, 24-1/2 In 7YR31 - main

Downblast Vent, Belt Drive, 24-1/2 In

  • Mfr # 7YR31

  • Zoro # G1975023

product price: $2,013.99
/ea
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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 #
7YR31
Zoro #
G1975023
UPC #
-
Country of Origin
Multiple

Dimensions

Base Size - Roof Ventilators
34 in x 34 in
Dimension A
34 in
Wheel Dia.
24 1/2 in
Base Square Size - Roof Ventilators
34" x 34"
Overall Height
40 1/8 in
Dimension D
5 3/4 in
Dimension B
42 3/4 in
Overall Dia.
42 3/4 in
Base Width
34 in
Shaft Dia. Wheel End
1 in
Base Length
34 in
Dimension C
38 3/8 in
Base Height
1 3/4 in
Overall Length
42 3/4 in
Housing Width
42.8 in
Wheel Diameter
24 1/2 in
Overall Width
42 3/4 in
Damper Size
27 x 27 in
Housing Length
42.8 in
Overall Diameter
42 3/4 in
Propeller Shaft Diameter
1 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/208V AC/230V AC
Motor HP - Roof Ventilators
1/4 hp
CFM @ 0.000-In. SP
4223
Wheel Type
Backward Inclined
Adj. 6 3/8"H Roof Curb Stock No.
4c455
CFM @ 0.125-In. SP
3785
Motor HP
1/4
Motor Voltage
115/208/230
Drive Type
Belt Drive
Sones @ 0.250-In. SP @ 5 Ft.
5.7
Includes
Drive Package, NEMA 1 Junction Box
Max. BHP
0.26
Max. Operating Amps
4.6/2.2-2.3
Speed Controllable
No
RPM
460
Wheel Material
Aluminum
Max. Inlet Temp.
180 Degrees
Mounting Location
Roof
Hz
60
Sones @ 0.125-In. SP @ 5 Ft.
6.6
Item
Centrifugal Downblast Roof Exhaust Fan
Recommended 8 In. Fixed Curb Item No.
4HX42
Phase
1
Assembled/Unassembled
Unassembled
CFM @ 0.250-In. SP
3188
Housing Material
Aluminum
Recommended 12 In. Fixed Curb Item No.
2RB80 or 4HX50
CFM @ 0.375-In. SP
2036
Drive Package Included
Yes
Agency Compliance
AMCA Sound & Air, UL/cUL 705
Adj. 12 3/8"H Roof Curb Stock No.
3C438 or 2ZV84
Standards
AMCA Sound and Air, UL/cUL 705
Bearing Type
Regreasable Pillow Block
For High-Static Pressure Applications
No
Motor Speed
1,725 RPM
Mount Type
Roof Curb
Motor Enclosure
Open Dripproof
Maximum Fan Speed
460 RPM
Includes Drive Package
Yes
Safety Features
Birdscreen, Windband
Compatible Curb Manufacturer Part Number
2RB80, 2ZV84, 3C438, 4C455, 4HX42, 4HX50
Electrical Connection
Power Cord
Features
Fresh Outside Air is Drawn in Under the Motor Cover to Maximize Motor Life, Fully Rolled Windband Bead for Increased Stability and Easy Transport, Nonoverloading Centrifugal Wheel Design
For Air Type
Clean Air
Exhaust Airflow @ 0.125 in SP
3,785 cfm
Frequency
60 Hz
Airflow @ 0.000 in SP
4,223 cfm
Housing Material Fabrication
Spun
Sound Level
4.2 sones @ 0.375 in SP and 5 ft, 5.7 sones @ 0.250 in SP and 5 ft, 6.6 sones @ 0.125 in SP and 5 ft, 6.7 sones @ 0.000 in SP and 5 ft
Includes Motor
Yes
Nameplate Voltage
115/208-230V AC
Motor Horsepower
1/4 hp
Resistance Properties
Weather Resistant
Exhaust Airflow @ 0.000 in SP
4,223 cfm
Motor Location
Out of Airstream
Brake Horsepower
13/50 hp
Application
Industrial and Commercial Applications
Current
4.6/2.2 to 2.3 A
Assembly
Unassembled
Exhaust Airflow @ 0.250 in SP
3,188 cfm
Base Shape
Square
Spark Resistant Construction Type
A
High-Efficiency Motor
No
Exhaust Airflow @ 0.375 in SP
2,036 cfm
Maximum Static Pressure
3/8 in wc
Maximum Inlet Air Temperature
180 Degrees F

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Wheel Diameter 24 1/2 in, Base Diameter Not Applicable, Base Length 34 in, Base Width 34 in, Base Shape Square, Nameplate Voltage 115/208-230V AC, Phase 1, Motor Horsepower 1/4 hp, Exhaust Airflow @ 0.000 in SP 4,223 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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