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Downblast Less Drive Package, 50 In
- Item # 4YY12
- Mfr. Model # 4YY12
- UNSPSC # 40101502
- Catalog Page # 4142
- Shipping Weight 715.0 lbs.
- ItemDownblast Ventilator Less Drv Pkg
- Drive TypeBelt
- Wheel Dia.50"
- CFM Range17,245 to 37,068 @ 0.0" SP
- RPM Range214 to 460
- Motor HP Range1 to 10
- Base Width64"
- Mounting LocationRoof
- Base Length64"
- Base Height1-3/4"
- Overall Dia.83"
- Overall Height50-3/4"
- Shaft Dia. Wheel End1-1/4"
- Shaft Dia. Sheave End1-1/4"
- Bearing TypeRegreasable Pillow Block
- Max. Inlet Temp.180 Degrees
- Housing MaterialSpun Aluminum
- Wheel MaterialAluminum
- Wheel TypeBackward Inclined Centrifugal
- Adj. 12 3/8"H Roof Curb Stock No.2ZV87
- Recommended 12 In. Fixed Curb Item No.2RB83
- Recommended 8 In. Fixed Curb Item No.4YY76
- Recommended Damper Size (In.)50 x 50
- Recommended Damper Stock No.4HX71
- RequiresRoof Curb For New Installations
- StandardsUL/cUL 705AMCA Sound & Air
- IncludesNEMA 1 Junction Box
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