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  9. Downblast Less Drive Package, 24-1/2In
Dayton Downblast Less Drive Package, 24-1/2In 5EFH8 - main

Downblast Less Drive Package, 24-1/2In

  • Mfr # 5EFH8

  • Zoro # G2844983

product price: $1,582.99
/ea
Item requires special delivery charges. A $150.00 per item surcharge will be applied.

Key Features

Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
No
Duty Rating - Roof Ventilators
Standard
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
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Specifications

Product Information

MFR #
5EFH8
Zoro #
G2844983
UPC #
190735343470
Country of Origin
United States

Dimensions

Base Size - Roof Ventilators
34 in x 34 in
Overall Height
40 1/8 in
Dimension A
34 in
Base Width
34 in
Base Length
34 in
Dimension B
42 3/4 in
Dimension C
38 3/8 in
Overall Dia.
38 3/8 in
Wheel Dia.
24 1/2 in
Base Height
1.8 in
Dimension D
5 3/4 in
Shaft Dia. Sheave End
1 in
Recommended Damper Size (In.)
27 x 27
Shaft Dia. Wheel End
1 in
Overall Length
42 3/4 in
Overall Width
38 3/8 in
Overall Diameter
42 3/4 in
Cutout Length
29.5 in
Wheel Diameter
24 in
Housing Length
42.8 in
Housing Width
42.8 in
Damper Size
27 x 27 in
Cutout Size
29.5 in L x 29.5 in W
Propeller Shaft Diameter
1 in

Details

Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
No
Duty Rating - Roof Ventilators
Standard
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
Number of Speeds
1
CFM Range
3799 to 7485 @ 0.0 in SP
Includes
NEMA 1 Junction Box
Standards
AMCA Sound and Air, UL/cUL 705
Adj. 6 3/8"H Roof Curb Stock No.
3C438
Motor HP Range
1/4 to 2
Requires
Roof curb for new installations
Max. Inlet Temp.
180 Degrees
Drive Type
Belt Drive
Adj. 12 3/8"H Roof Curb Stock No.
2ZV84
Wheel Type
Backward Inclined
Item
Centrifugal Downblast Roof Exhaust Fan
Wheel Material
Aluminum
Recommended 12 In. Fixed Curb Item No.
2RB80
Bearing Type
Regreasable Pillow Block
Recommended 8 In. Fixed Curb Item No.
4HX42
Housing Material
Aluminum
Recommended Damper Stock No.
4HX68
Mounting Location
Roof
RPM Range
500 to 985
Speed Controllable
No
Features
Air Handling Quality Bearings Meet Minimum of L10-100,000 Hours, Features a Fully Rolled Windband Bead for Increased Stability and Easy Transport, Fresh Outside Air is Drawn in Under the Motor Cover to Maximize Motor Life, Nema 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design, Optional Nema 1 and 4 Disconnects Available
Application
Industrial and Commercial Buildings
For Air Type
Clean Air
Noise Level @ 0.000 in SP @ 5 ft
8.8 sones
Base Shape
Square
Power Source
Electric Motor
Maximum Fan Speed
985 RPM
Maximum Motor Speed
985 RPM
Minimum Airflow
2,526 cfm
Electrical Connection
Power Cord
Safety Features
Birdscreen, Windband
Maximum Inlet Air Temperature
180 Degrees F
Includes Drive Package
No
Housing Material Fabrication
Spun
Resistance Properties
Weather Resistant
Mount Type
Roof Curb
Minimum Motor Speed
500 RPM
Maximum Static Pressure
1 1/2 in wc
Compatible Curb Manufacturer Part Number
2RB80, 2ZV84, 3C438, 4C455, 4HX42, 4HX50
For High-Static Pressure Applications
No
Maximum Motor Horsepower
2 hp
Brake Horsepower
13/50 hp
Minimum Motor Horsepower
1/4 hp
Assembly
Unassembled
Maximum Airflow
7,485 cfm
Includes Motor
No
Sound Level
Fan RPM 500: 8.8 sones @ 0.000 in SP and 5 ft, 8.4 sones @ 0.125 in SP and 5 ft, 7.9 sones @ 0.250 in SP and 5 ft, 7.5 sones @ 0.375 in SP and 5 ft, Fan RPM 550: 10.0 sones @ 0.000 in SP and 5 ft, 9.6 sones @ 0.125 in SP and 5 ft, 8.9 sones @ 0.250 in SP and 5 ft, 8.4 sones @ 0.375 in SP and 5 ft, 8.0 sones @ 0.500 in SP and 5 ft, Fan RPM 640: 13.0 sones @ 0.000 in SP and 5 ft, 12.8 sones @ 0.125 in SP and 5 ft, 12.1 sones @ 0.250 in SP and 5 ft, 11.2 sones @ 0.375 in SP and 5 ft, 10.5 sones @ 0.500 in SP and 5 ft, 9.7 sones @ 0.625 in SP and 5 ft, Fan RPM 710: 15.0 sones @ 0.000 in SP and 5 ft, 14.9 sones @ 0.125 in SP and 5 ft, 14.4 sones @ 0.250 in SP and 5 ft, 13.6 sones @ 0.375 in SP and 5 ft, 12.8 sones @ 0.500 in SP and 5 ft, 12.1 sones @ 0.625 in SP and 5 ft, 11.2 sones @ 0.750 in SP and 5 ft, 10.3 sones @ 0.875 in SP and 5 ft, Fan RPM 800: 16.6 sones @ 0.000 in SP and 5 ft, 16.4 sones @ 0.125 in SP and 5 ft, 16.1 sones @ 0.250 in SP and 5 ft, 15.6 sones @ 0.375 in SP and 5 ft, 15.2 sones @ 0.500 in SP and 5 ft, 14.6 sones @ 0.625 in SP and 5 ft, 14.2 sones @ 0.750 in SP and 5 ft, 13.4 sones @ 0.875 in SP and 5 ft, 12.5 sones @ 1.000 in SP and 5 ft, Fan RPM 895: 19.4 sones @ 0.000 in SP and 5 ft, 19.1 sones @ 0.125 in SP and 5 ft, 18.8 sones @ 0.250 in SP and 5 ft, 18.5 sones @ 0.375 in SP and 5 ft, 18.2 sones @ 0.500 in SP and 5 ft, 18.0 sones @ 0.625 in SP and 5 ft, 17.6 sones @ 0.750 in SP and 5 ft, 17.3 sones @ 0.875 in SP and 5 ft, 16.9 sones @ 1.000 in SP and 5 ft, 15.5 sones @ 1.250 in SP and 5 ft, Fan RPM 985: 23.0 sones @ 0.000 in SP and 5 ft, 23.0 sones @ 0.125 in SP and 5 ft, 23.0 sones @ 0.250 in SP and 5 ft, 22.0 sones @ 0.375 in SP and 5 ft, 22.0 sones @ 0.500 in SP and 5 ft, 22.0 sones @ 0.625 in SP and 5 ft, 2.0 sones @ 0.750 in SP and 5 ft, 21.0 sones @ 0.875 in SP and 5 ft, 21.0 sones @ 1.000 in SP and 5 ft, 20.0 sones @ 1.250 in SP and 5 ft, 19.0 sones @ 1.500 in SP and 5 ft
Spark Resistant Construction Type
A

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Mounting Location Roof, Wheel Diameter 24 in, Base Diameter Not Applicable, Base Length 34 in, Base Width 34 in, Base Shape Square, Minimum Airflow 2,526 cfm, Maximum Airflow 7,485 cfm, Maximum Motor Horsepower 2 hp, Minimum Motor Horsepower 1/4 hp, Minimum Motor Speed 500 RPM, Maximum Motor Speed 985 RPM, Maximum Static Pressure 1 1/2 in wc, For High-Static Pressure Applications No

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