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  9. Downblast Less Drive Package, 50 In
Dayton Downblast Less Drive Package, 50 In 4YY12 - main

Downblast Less Drive Package, 50 In

  • Mfr # 4YY12

  • Zoro # G1334663

product price: $7,479.99
/ea
Item requires special delivery charges. A $250.00 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 #
4YY12
Zoro #
G1334663
UPC #
190735339459
Country of Origin
United States

Dimensions

Base Size - Roof Ventilators
64 in x 64 in
Base Length
64 in
Recommended Damper Size (In.)
50 x 50
Dimension C
50 3/4 in
Overall Height
52 1/2 in
Base Width
64 in
Base Height
1.8 in
Dimension B
83 in
Dimension D
14 1/2 in
Overall Dia.
83 in
Shaft Dia. Sheave End
1 1/4 in
Wheel Dia.
50 in
Dimension A
64 in
Shaft Dia. Wheel End
1 1/4 in
Overall Width
50 3/4 in
Overall Length
83 in
Housing Width
83 in
Cutout Length
52.5 in
Overall Diameter
83 in
Housing Length
83 in
Wheel Diameter
50 in
Propeller Shaft Diameter
1 1/4 in
Cutout Size
52.5 in L x 52.5 in W
Damper Size
50 x 50 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
Housing Material
Aluminum
Bearing Type
Regreasable Pillow Block
Item
Centrifugal Downblast Roof Exhaust Fan
Drive Type
Belt Drive
Motor HP Range
1 to 10
Wheel Type
Backward Inclined
RPM Range
214 to 460
Standards
AMCA Sound and Air, UL/cUL 705
Recommended Damper Stock No.
4HX71
Wheel Material
Aluminum
Includes
NEMA 1 Junction Box
CFM Range
17,245 to 37,068 @ 0.0 in SP
Mounting Location
Roof
Adj. 12 3/8"H Roof Curb Stock No.
2ZV87
Recommended 12 In. Fixed Curb Item No.
2RB83
Requires
Roof curb for new installations
Max. Inlet Temp.
180 Degrees
Recommended 8 In. Fixed Curb Item No.
4YY76
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
Spark Resistant Construction Type
A
Base Shape
Square
Maximum Motor Speed
460 RPM
Maximum Fan Speed
460 RPM
Electrical Connection
Power Cord
Assembly
Unassembled
Noise Level @ 0.000 in SP @ 5 ft
9.7 sones
Includes Drive Package
No
Mount Type
Roof Curb
Minimum Motor Speed
214 RPM
Housing Material Fabrication
Spun
Minimum Airflow
12,424 cfm
Maximum Airflow
37,068 cfm
For High-Static Pressure Applications
No
Resistance Properties
Weather Resistant
Sound Level
Fan RPM 214: 9.7 sones @ 0.000 in SP and 5 ft, 9.1 sones @ 0.125 in SP and 5 ft, 8.7 sones @ 0.250 in SP and 5 ft, Fan RPM 245: 12.2 sones @ 0.000 in SP and 5 ft, 11.6 sones @ 0.125 in SP and 5 ft, 11.0 sones @ 0.250 in SP and 5 ft, 10.7 sones @ 0.375 in SP and 5 ft, Fan RPM 269: 14.3 sones @ 0.000 in SP and 5 ft, 13.8 sones @ 0.125 in SP and 5 ft, 13.2 sones @ 0.250 in SP and 5 ft, 12.7 sones @ 0.375 in SP and 5 ft, Fan RPM 308: 17.9 sones @ 0.000 in SP and 5 ft, 17.5 sones @ 0.125 in SP and 5 ft, 16.9 sones @ 0.250 in SP and 5 ft, 16.2 sones @ 0.375 in SP and 5 ft, 15.8 sones @ 0.500 in SP and 5 ft, 15.6 sones @ 0.625 in SP and 5 ft, Fan RPM 366: 23.0 sones @ 0.000 in SP and 5 ft, 22.0 sones @ 0.125 in SP and 5 ft, 21.0 sones @ 0.250 in SP and 5 ft, 21.0 sones @ 0.375 in SP and 5 ft, 20.0 sones @ 0.500 in SP and 5 ft, 19.8 sones @ 0.625 in SP and 5 ft, 19.5 sones @ 0.750 in SP and 5 ft, 19.4 sones @ 0.875 in SP and 5 ft, Fan RPM 419: 28.0 sones @ 0.000 in SP and 5 ft, 27.0 sones @ 0.125 in SP and 5 ft, 27.0 sones @ 0.250 in SP and 5 ft, 26.0 sones @ 0.375 in SP and 5 ft, 26.0 sones @ 0.500 in SP and 5 ft, 25.0 sones @ 0.625 in SP and 5 ft, 24.0 sones @ 0.750 in SP and 5 ft, 24.0 sones @ 0.875 in SP and 5 ft, 23.0 sones @ 1.000 in SP and 5 ft, Fan RPM 460: 32.0 sones @ 0.000 in SP and 5 ft, 32.0 sones @ 0.125 in SP and 5 ft, 32.0 sones @ 0.250 in SP and 5 ft, 32.0 sones @ 0.375 in SP and 5 ft, 32.0 sones @ 0.500 in SP and 5 ft, 31.0 sones @ 0.625 in SP and 5 ft, 30.0 sones @ 0.750 in SP and 5 ft, 29.0 sones @ 0.875 in SP and 5 ft, 28.0 sones @ 1.000 in SP and 5 ft, 27.0 sones @ 1.250 in SP and 5 ft
Maximum Static Pressure
1 1/4 in wc
Brake Horsepower
1 1/25 hp
Includes Motor
No
Minimum Motor Horsepower
1 hp
Safety Features
Birdscreen, Windband
Motor Location
Out of Airstream
Maximum Motor Horsepower
10 hp
Power Source
Electric Motor
Compatible Curb Manufacturer Part Number
1VN43, 2RB83, 2ZV87, 4YY76, 4YY77
Maximum Inlet Air Temperature
180 Degrees F

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Mounting Location Roof, Wheel Diameter 50 in, Base Diameter Not Applicable, Base Length 64 in, Base Width 64 in, Base Shape Square, Minimum Airflow 12,424 cfm, Maximum Airflow 37,068 cfm, Maximum Motor Horsepower 10 hp, Minimum Motor Horsepower 1 hp, Minimum Motor Speed 214 RPM, Maximum Motor Speed 460 RPM, Maximum Static Pressure 1 1/4 in wc, For High-Static Pressure Applications No

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