Downblast Vent, Direct Drive, 14-3/4 In

Mfr # 38AX31
Zoro # G0317381

$1,232.99

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Key Features

Drive Package With Motor Included Yes
Duty Rating - Roof Ventilators Standard
Drive Type - Roof Ventilators Direct Drive
Mounting Location - Roof Ventilators Roof
Number of Speeds Variable

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Product Information

Brand Dayton
MFR # 38AX31
Zoro # G0317381
UPC #
190735276761
Country of Origin United States
Category Direct Drive Centrifugal Exhaust Ventilators

Dimensions

Base Size - Roof Ventilators	22 in x 22 in
Dimension B	28 3/8 in
Dimension C	23 3/4 in
Base Square Size - Roof Ventilators	22" x 22"
Dimension D	4 in
Dimension A	22 in
Overall Height	25 1/2 in
Wheel Dia.	14 3/4 in
Overall Dia.	28 3/8 in
Shaft Dia. Wheel End	1/2 in
Base Width	22 in
Base Height	1 3/4 in
Base Length	22 in
Overall Width	28 3/8 in
Overall Length	28 3/8 in
Damper Size	19 x 19 in
Housing Width	28.4 in
Wheel Diameter	14 3/4 in
Housing Length	28.4 in
Cutout Length	21.5 in
Overall Diameter	28 3/8 in
Cutout Size	21.5 in L x 21.5 in W
Propeller Shaft Diameter	5/8 in

Details

Item - Roof Ventilators	Downblast Ventilator
Drive Package With Motor Included	Yes
Duty Rating - Roof Ventilators	Standard
Drive Type - Roof Ventilators	Direct Drive
Mounting Location - Roof Ventilators	Roof
Number of Speeds	Variable
Voltage - Roof Ventilators	208V AC/230V AC
Motor HP - Roof Ventilators	3/4 hp
CFM @ 0.000-In. SP	1948/2412/2875
CFM @ 0.125-In. SP	1833/2318/2797
Speed Control	Variable with 43Y140
Housing Material	Aluminum
Drive Package Included	Yes
Item	Centrifugal Downblast Roof Exhaust Fan
Motor Type	Electronically Commutated
CFM @ 1.500-In. SP	-/-/1297
Hz	60
Motor HP	3/4
CFM @ 0.250-In. SP	1719/2228/2719
Sones @ 0.125-In. SP @ 5 Ft.	9.4/13.2/18.0
CFM @ 0.875-In. SP	-/1611/2299
Drive Type	Direct Drive
Phase	1
Recommended 8 In. Fixed Curb Item No.	4HX40
RPM	1050/1300/1550
Max. Inlet Temp.	130 Degrees
Recommended 12 In. Fixed Curb Item No.	2RB77
Sones @ 0.500-In. SP @ 5 Ft.	8.0/12.0/16.8
Mounting Location	Roof
Max. Operating Amps	10.1
Wheel Type	Backward Inclined
CFM @ 0.750-In. SP	-/1777/2396
CFM @ 1.250-In. SP	-/-/1910
Wheel Material	Aluminum
Max. BHP	0.24/0.46/0.79 hp
Adj. 12 3/8"H Roof Curb Stock No.	2ZV83
Sones @ 0.250-In. SP @ 5 Ft.	9.0/12.9/17.4
CFM @ 0.625-In. SP	1164/1919/2487
Adj. 6 3/8"H Roof Curb Stock No.	4c454
Assembled/Unassembled	Assembled
CFM @ 1.000-In. SP	-/1355/2191
CFM @ 0.375-In. SP	1590/2135/2644
CFM @ 0.500-In. SP	1418/2033/2566
Motor Voltage	208/230
Speed Controllable	Variable Speed
Includes	NEMA 1 Junction Box
Standards	AMCA Sound and Air, UL/cUL 705
Application	Industrial and Commercial Applications
Features	Energy Saving Units Feature Ec Motors Which Allow up to 80% Useable Turndown, Fresh Outside Air is Drawn In Under The Motor Cover to Maximize Motor Life, Fully Rolled Windband Bead For Increased Stability and Easy Transport, High-Efficiency Brushless DC Motor, Motor Features Potentiometer Dial for Speed Adjustment, Nema 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design, Optional Nema 1 And 4 Disconnects Available
Exhaust Airflow @ 0.000 in SP	2,412 cfm
High-Efficiency Motor	Yes
Airflow @ 0.000 in SP	2,875 cfm
Current	6.6/6.1 A
Exhaust Airflow @ 0.250 in SP	2,719 cfm
Maximum Static Pressure	1 1/2 in wc
Brake Horsepower	6/25 hp
Compatible Speed Control	35YV92, 35YV93, 35YV94, 43Y140
Compatible Curb Manufacturer Part Number	2RB77, 2ZV83, 3C437, 4C454, 4HX40, 4HX48
Base Shape	Square
Motor Horsepower	3/4 hp
Includes Motor	Yes
Electrical Connection	Power Cord
Exhaust Airflow @ 0.125 in SP	2,797 cfm
Exhaust Airflow @ 0.375 in SP	2,644 cfm
Safety Features	Birdscreen, Windband
Housing Material Fabrication	Spun
Nameplate Voltage	208-230V AC
For High-Static Pressure Applications	No
Exhaust Airflow @ 0.500 in SP	2,566 cfm
Assembly	Assembled
Frequency	60 Hz
Maximum Fan Speed	1,550 RPM
Maximum Ambient Temperature	130 Degrees F
For Air Type	Clean Air
Includes Drive Package	Yes
Motor Enclosure	Open Dripproof
Maximum Inlet Air Temperature	130 Degrees F
Mount Type	Roof Curb
Spark Resistant Construction Type	A
Sound Level	15.0 sones @ 0.750 in SP and 5 ft, 14.8 sones @ 0.875 in SP and 5 ft, 14.8 sones @ 1.000 in SP and 5 ft, 14.8 sones @ 1.250 in SP and 5 ft, 14.9 sones @ 1.500 in SP and 5 ft, Fan RPM 1050: 9.5 sones @ 0.000 in SP and 5 ft, 9.4 sones @ 0.125 in SP and 5 ft, 9.0 sones @ 0.250 in SP and 5 ft, 8.5 sones @ 0.375 in SP and 5 ft, 8.0 sones @ 0.500 in SP and 5 ft, 7.3 sones @ 0.625 in SP and 5 ft, Fan RPM 1300: 13.5 sones @ 0.000 in SP and 5 ft, 13.2 sones @ 0.125 in SP and 5 ft, 12.9 sones @ 0.250 in SP and 5 ft, 12.5 sones @ 0.375 in SP and 5 ft, 12.0 sones @ 0.500 in SP and 5 ft, 11.5 sones @ 0.625 in SP and 5 ft, 11.0 sones @ 0.750 in SP and 5 ft, 10.5 sones @ 0.875 in SP and 5 ft, 9.8 sones @ 1.000 in SP and 5 ft, Fan RPM 1550: 17.7 sones @ 0.000 in SP and 5 ft, 18.0 sones @ 0.125 in SP and 5 ft, 17.4 sones @ 0.250 in SP and 5 ft, 17.2 sones @ 0.375 in SP and 5 ft, 16.8 sones @ 0.500 in SP and 5 ft, 16.0 sones @ 0.625 in SP and 5 ft

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Direct Drive, Assembly Assembled, Wheel Diameter 14 3/4 in, Base Diameter Not Applicable, Base Length 22 in, Base Width 22 in, Base Shape Square, Nameplate Voltage 208-230V AC, Phase 1, Motor Horsepower 3/4 hp, Exhaust Airflow @ 0.000 in SP 2,412 cfm, For High-Static Pressure Applications No, High-Efficiency Motor Yes, For Air Type Clean Air, Includes Drive Package Yes, Includes Motor Yes, Mounting Location Roof

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Downblast Vent, Direct Drive, 14-3/4 In

Mfr # 38AX31

Zoro # G0317381

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