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  9. Downblast Less Drive Package, 18-1/2In
Dayton Downblast Less Drive Package, 18-1/2In 4YU97 - main

Downblast Less Drive Package, 18-1/2In

  • Mfr # 4YU97

  • Zoro # G2186764

product price: $1,472.99
/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
Hazardous Location
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
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Specifications

Product Information

MFR #
4YU97
Zoro #
G2186764
UPC #
190735339367
Country of Origin
United States

Dimensions

Base Size - Roof Ventilators
30 in x 30 in
Overall Dia.
35 1/2 in
Dimension C
34 3/8 in
Base Width
30 in
Overall Height
36 1/8 in
Base Height
1.8 in
Wheel Dia.
18 1/2 in
Base Length
30 in
Dimension B
35 1/2 in
Shaft Dia. Sheave End
3/4 in
Recommended Damper Size (In.)
23 x 23
Dimension D
5 1/2 in
Shaft Dia. Wheel End
3/4 in
Dimension A
30 in
Overall Length
35 1/2 in
Overall Width
34 3/8 in
Housing Width
35.5 in
Cutout Size
25.5 in L x 25.5 in W
Propeller Shaft Diameter
3/4 in
Housing Length
35.5 in
Overall Diameter
35 1/2 in
Cutout Length
25.5 in
Damper Size
23 x 23 in
Wheel Diameter
18 1/2 in

Details

Item - Roof Ventilators
Downblast Ventilator
Drive Package With Motor Included
No
Duty Rating - Roof Ventilators
Hazardous Location
Drive Type - Roof Ventilators
Belt Drive
Mounting Location - Roof Ventilators
Roof
Number of Speeds
1
CFM Range
2839 to 5677 @ 0.0 in SP
Recommended 12 In. Fixed Curb Item No.
2RB79
Standards
AMCA Sound and Air, UL/cUL 705
Recommended 8 In. Fixed Curb Item No.
4HX41
Drive Type
Belt Drive
Max. Inlet Temp.
180 Degrees
Mounting Location
Roof
Adj. 12 3/8"H Roof Curb Stock No.
2ZV83
Item
Centrifugal Downblast Roof Exhaust Fan
RPM Range
730 to 1460
Housing Material
Aluminum
Requires
Roof curb for new installations
Wheel Material
Aluminum
Adj. 6 3/8"H Roof Curb Stock No.
4c454
Includes
NEMA 1 Junction Box
Bearing Type
Regreasable Pillow Block
Motor HP Range
1/4 to 2
Wheel Type
Backward Inclined
Recommended Damper Stock No.
4HX67
Speed Controllable
No
Application
Industrial and Commercial Buildings
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
For Air Type
Clean Air
Maximum Motor Horsepower
2 hp
Motor Location
Out of Airstream
Minimum Airflow
1,882 cfm
Maximum Motor Speed
1,460 RPM
Power Source
Electric Motor
For High-Static Pressure Applications
No
Minimum Motor Speed
730 RPM
Electrical Connection
Power Cord
Housing Material Fabrication
Spun
Maximum Static Pressure
2 in wc
Brake Horsepower
13/50 hp
Resistance Properties
Weather Resistant
Assembly
Unassembled
Maximum Fan Speed
1,460 RPM
Compatible Curb Manufacturer Part Number
2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
Safety Features
Birdscreen, Windband
Base Shape
Square
Maximum Inlet Air Temperature
180 Degrees F
Noise Level @ 0.000 in SP @ 5 ft
16.2 sones
Spark Resistant Construction Type
A
Mount Type
Roof Curb
Includes Drive Package
No
Maximum Airflow
5,677 cfm
Includes Motor
No
Minimum Motor Horsepower
1/4 hp

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Mounting Location Roof, Wheel Diameter 18 1/2 in, Base Diameter Not Applicable, Base Length 30 in, Base Width 30 in, Base Shape Square, Minimum Airflow 1,882 cfm, Maximum Airflow 5,677 cfm, Maximum Motor Horsepower 2 hp, Minimum Motor Horsepower 1/4 hp, Minimum Motor Speed 730 RPM, Maximum Motor Speed 1,460 RPM, Maximum Static Pressure 2 in wc, For High-Static Pressure Applications No

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