Submittal: 4HZ52 | Products

Centrifugal Direct-Drive Upblast Exhaust Ventilator

Designed for use in restaurants, schools, commercial, and industrial applications to exhaust contaminated air from kitchen range hoods, up and away from the roof. Leakproof, spun aluminum construction features a fully rolled windband for increased stability.

Aluminum backward inclined, nonoverloading centrifugal wheel design
NEMA 1 junction box located in motor enclosure
Optional NEMA 1 and 4 disconnects available
Maximum inlet air temperature: 300º F
UL/cUL 705 Listed for Power Ventilators
UL/cUL 762 Listed for Restaurant Exhaust Appliances

A	B	C	D
26 in	28 7/8 in	27 1/8 in	19 3/8 in

Performance Characteristics

Construction Features

Impeller Diameter (Typ.)	16 1/2 in
Impeller Type	Backward Inclined Centrifugal
Impeller Material	Aluminum
Max Inlet Temp	300 °F
Warranty Length	1 Year

Motor Information

Motor Item Number	4YU20
Voltage	115
Hertz (Cycle)	60 Hz
Motor Phase	1
Motor Enclosure	Open Drip Proof
RPM	860 rpm
Full Load Amps	4.8

Air & Sound Performance

Motor HP	Max BHP	Fan RPM	CFM @	0.000'' SP	0.125'' SP	0.250'' SP	0.375'' SP	0.500'' SP
1/4	0.25	860	CFM	2472	2315	2126	1918	1680
1/4	0.25	860	Sones	10.7	10.2	9.9	9.7	9.5

Performance certified is for installation type A: Free inlet, Free outlet. Performance ratings do not include the effects of appurtenances (accessories). The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type A: Free inlet hemispherical sone levels.

Catalog 405, January 2010

Agency Compliance

Dayton Electric Mfg. Co. certifies that the ventilators shown herein are licensed to bear the AMCA seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

AMCA Sound & Air
Agency Compliance

UL/cUL 762
Agency Compliance

CSA Certified Motor