- Free Shipping on Orders Over $99 *
- Having Trouble Finding the Right Part? Call Us: 678-383-6420
- Free Shipping on Orders Over $99*
- Having Trouble Finding the Right Part? Call Us: 678-383-6420
Please verify HP, Voltage, and Phase.
DAYTON 4YU91 Axial Downblast Exhaust Ventilators
| Item | Exhaust Ventilator |
| Drive Package With Motor Included | No |
| Blade Dia. | 36″ |
| Mounting Location | Roof |
| Base Height (In.) | 1 3/4 |
| Overall Dia. (In.) | 58-5/8 |
| Overall Height (In.) | 43 5/8 |
| RPM Range | 493 to 621 |
| Bearing Type | Regreasable Pillow Block |
| Shaft Dia. Propeller End (In.) | 1-1/4 |
| Shaft Dia. Sheave End (In.) | 1-1/4 |
| Propeller Material | Steel |
| Housing Material | Spun Aluminum |
| Speed Controllable | NO |
| Max. Inlet Temp. (Deg. F) | 120 |
| Agency Compliance | UL 705 |
| Application | General Clean Air |
| Requires | Roof Curb For New Installations |
| Includes | NEMA 1 Junction Box |
| Adj. 12 3/8″H Roof Curb Stock No. | 2ZV85 |
| Adj. 6 3/8″H Roof Curb Stock No. | 3C597 |
| Recommended 12 In. Fixed Curb Item No. | 2RB82 |
| Recommended 8 In. Fixed Curb Item No. | 4HX44 |
| Recommended Damper Size (In.) | 39 x 39 |
| Recommended Damper Stock No. | 4HX70 |
| Dimension A | 46″ |
| Dimension B | 58-5/8″ |
| Dimension C | 41-7/8″ |
| Dimension D | 6-5/8″ |
| Attribute Name | Attribute Value |
|---|---|
| Brand | DAYTON |
| Item # | 4YU91 |
| Mfr. Model # | 4YU91 |
| Country of Origin | USA |
| Catalog Page # | 2961 |
| Catalog Group # | N/A |
| UNSPSC # | 40101502 |
REPLACEMENT MOTOR SINGLE PHASE 115 VOLT: Please call or email for pricing
REPLACEMENT MOTOR THREE PHASE: Please call or email for pricing
REPLACEMENT BEARINGS: Please call or email for pricing
REPLACEMENT SHAFT: Please call or email for pricing
REPLACEMENT BLADE: Please call or email for pricing
REPLACEMENT TOPCAP/LID: Please call or email for pricing
