Item	Downblast Ventilator
Drive Type – Roof Ventilators	Direct Drive
Duty Rating – Roof Ventilators	Standard
Drive Package With Motor Included	Yes
Voltage – Roof Ventilators	115VAC
Motor HP – Roof Ventilators	1/8
Base Size – Roof Ventilators	19″ x 19″
Number of Speeds	1
Mounting Location – Roof Ventilators	Roof
Wheel Dia.	10-1/2″
Item – Roof Ventilators	Downblast Ventilator
CFM @ 0.000-In. SP	717
CFM @ 0.125-In. SP	570
CFM @ 0.250-In. SP	389
Sones @ 0.125-In. SP @ 5 Ft.	4.5
Sones @ 0.250-In. SP @ 5 Ft.	4.5
Phase	1
Hz	60
Max. Operating Amps	2.6
Max. BHP	0.04
RPM	1050
Base Height	1-3/4″
Overall Dia.	21-3/4″
Overall Height	14-5/8″
Shaft Dia. Wheel End	1/2″
Max. Inlet Temp.	130 Degrees
Housing Material	Spun Aluminum
Wheel Material	Aluminum
Wheel Type	Backward Inclined Centrifugal
Speed Control	48C172
Speed Controllable	Yes
Adj. 12 3/8″H Roof Curb Stock No.	2ZV82
Adj. 6 3/8″H Roof Curb Stock No.	4C453
Assembled/Unassembled	Assembled
Recommended 12 In. Fixed Curb Item No.	2RB75
Recommended 8 In. Fixed Curb Item No.	4HX38
Agency Compliance	AMCA Sound & Air, UL/cUL 705, CSA Certified Motor
Dimension A	19″
Dimension B	21-3/4″
Dimension C	14-5/8″
Dimension D	4″
Includes	NEMA 1 Junction Box

DAYTON 4YC66 Direct Driven Downblast Ventilators

Description