Shop All Direct Drive Axial Downblast Ventilators

Supply Vent, 20 In

Mfr # 4YC61
Zoro # G1380872

$1,795.99

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Key Features

Propeller Dia. 20 in
Voltage 115/208-230
Motor HP 1 1/2 hp
Overall Dia. 42 in
Propeller Material Aluminum

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Product Information

Brand Dayton
MFR # 4YC61
Zoro # G1380872
UPC #
190735337622
Country of Origin United States
Category Direct Drive Axial Downblast Ventilators

Dimensions

Propeller Dia.	20 in
Overall Dia.	42 in
Recommended Damper Size	27 in x 27 in
Overall Height	19 1/4 in
Dimension A	34 in
Dimension D	6 1/4 in
Base Width	34 in
Dimension B	42 in
Base Height	1 3/4 in
Shaft Dia. Propeller End	5/8 in
Dimension C	17 1/2 in
Base Length	34 in
Overall Width	42 in
Overall Length	42 in
Cutout Length	29.5 in
Housing Width	42 in
Base Dimension	34 in Square
Housing Length	42 in
Propeller Shaft Diameter	5/8 in
Blade Diameter	20 in
Damper Size	27 x 27 in
Cutout Size	29.5 in L x 29.5 in W

Details

Item	Axial Downblast Roof Supply Fan
Voltage	115/208-230
Motor HP	1 1/2 hp
Propeller Material	Aluminum
Standards	AMCA Sound and Air, UL/cUL 705
Includes	NEMA 1 Junction Box
CFM @ 0.000-In. SP	5355
Requires	Roof Curb for New Installation
Recommended Damper Stock No.	4HX68
Hz	60
Adj. 12 3/8"H Roof Curb Stock No.	2ZV84
RPM	1750
Housing Material	Aluminum
Adj. 6 3/8"H Roof Curb Stock No.	4c455
Sones @ 0.250-In. SP @ 5 Ft.	34
Sones @ 0.125-In. SP @ 5 Ft.	32
CFM @ 0.875-In. SP	3575
Phase	1
CFM @ 0.625-In. SP	4073
Max. Operating Amps	13.2/7.2-6.6
Recommended 12 In. Fixed Curb Item No.	2RB80
Max. BHP	1.14 hp
Speed Controllable	No
CFM @ 0.750-In. SP	3830
Max. Inlet Temp.	120 Degrees F
Mounting Location	Roof
Base Top to Shroud	6 1/4 in
CFM @ 0.500-In. SP	4408
CFM @ 1.000-In. SP	3272
CFM @ 0.375-In. SP	4648
CFM @ 0.125-In. SP	5137
CFM @ 0.250-In. SP	4886
Recommended 8 In. Fixed Curb Item No.	4HX42
CFM @ 1.250-In. SP	2658
Material	Aluminum Blade with Aluminum Housing
Application	Industrial and Commercial Applications
Features	Fully Rolled Baffle Bead for Stability and Ease of Transport With Spun Aluminum Hood Construction, Galvanized Steel Venturi, Inlet and Supports, NEMA 1 Junction Box Located in Motor Enclosure
Maximum Static Pressure	1 1/4 in wc
High-Efficiency Motor	No
Assembly	Assembled
Motor Efficiency	Standard-Efficiency Motor
Maximum Fan Speed	1,750 RPM
Includes Drive Package	Yes
Sound Level	29.0 sones @ 0.000 in SP and 5 ft, 32.0 sones @ 0.125 in SP and 5 ft, 32.0 sones @ 0.875 in SP and 5 ft, 33.0 sones @ 0.625 in SP and 5 ft, 33.0 sones @ 0.750 in SP and 5 ft, 33.0 sones @ 1.000 in SP and 5 ft, 34.0 sones @ 0.250 in SP and 5 ft, 34.0 sones @ 0.375 in SP and 5 ft, 34.0 sones @ 0.500 in SP and 5 ft, 34.0 sones @ 1.250 in SP and 5 ft
Motor Enclosure	Open Dripproof
Exhaust Airflow @ 0.000 in SP	5,355 cfm
Base Shape	Square
Airflow @ 0.000 in SP - Range	5,000 to 7,999 cfm
Brake Horsepower	1 7/50 hp
Supply Airflow @ 0.250 in SP	4,886 cfm
Number of Blades	4
Exhaust Airflow @ 0.125 in SP	5,137 cfm
Compatible Curb Manufacturer Part Number	2RB80, 2ZV84, 3C438, 4C455, 4HX42, 4HX50
Supply Airflow @ 0.000 in SP - Range	5,000 to 7,999 cfm
Exhaust Airflow @ 0.375 in SP	4,648 cfm
Supply Airflow @ 0.125 in SP	5,137 cfm
Number of Speeds	1
Frequency	60 Hz
For High-Static Pressure Applications	No
Exhaust Airflow @ 0.250 in SP	4,886 cfm
Drive Type	Direct Drive
For Air Type	Clean Air
Housing Material Fabrication	Spun
Blade Material	Aluminum
Safety Features	Birdscreen
Mount Type	Roof Curb
Includes Motor	Yes
Nameplate Voltage	115/208-230V AC
Supply Airflow @ 0.000 in SP	5,355 cfm
Electrical Connection	Power Cord
Motor Enclosure Design	Open Dripproof (ODP)
Airflow @ 0.000 in SP	5,355 cfm
Blade Design	Swept Steeply Pitched
Supply Airflow @ 0.375 in SP	4,648 cfm
Supply Airflow @ 0.500 in SP	4,408 cfm
Exhaust Airflow @ 0.500 in SP	4,408 cfm
Maximum Inlet Air Temperature	120 Degrees F
Motor Location	In Airstream
Current	13.2/7.2-6.6 A
Motor Horsepower	1 1/2 hp

Description

Axial Downblast Roof Supply Fan, Mounting Location Roof, Assembly Assembled, Blade Diameter 20 in, Housing Material Aluminum, Exhaust Airflow @ 0.000 in SP 5,355 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, Maximum Static Pressure 1 1/4 in wc, Motor Enclosure Open Dripproof, Motor Horsepower 1 1/2 hp, Nameplate Voltage 115/208-230V AC, Number of Speeds 1, Phase 1, Maximum Inlet Air Temperature 120 Degrees F, Number of Blades 4, Supply Airflow @ 0.000 in SP 5,355 cfm

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Supply Vent, 20 In

Mfr # 4YC61

Zoro # G1380872

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