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Dayton

Downblast Vent, Belt Drive, 18-1/2 In

product price: $1,998.99
/ea
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Key Features

  • Drive Package With Motor Included Yes
  • Duty Rating - Roof Ventilators Standard
  • Drive Type - Roof Ventilators Belt Drive
  • Mounting Location - Roof Ventilators Roof
  • Number of Speeds 1
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Product Information

Dimensions

Base Size - Roof Ventilators 30 in x 30 in
Overall Dia. 35 1/2 in
Base Width 30 in
Base Length 30 in
Base Square Size - Roof Ventilators 30" x 30"
Dimension D 5 1/2 in
Base Height 1 3/4 in
Dimension C 34 3/8 in
Dimension A 30 in
Overall Height 36 1/8 in
Wheel Dia. 18 1/2 in
Shaft Dia. Wheel End 3/4 in
Dimension B 35 1/2 in
Housing Length 35.5 in
Damper Size 23 x 23 in
Overall Length 35 1/2 in
Wheel Diameter 18 1/2 in
Overall Width 35 1/2 in
Housing Width 35.5 in
Propeller Shaft Diameter 3/4 in
Overall Diameter 35 1/2 in

Details

Item - Roof Ventilators Downblast Ventilator
Drive Package With Motor Included Yes
Duty Rating - Roof Ventilators Standard
Drive Type - Roof Ventilators Belt Drive
Mounting Location - Roof Ventilators Roof
Number of Speeds 1
Voltage - Roof Ventilators 208V AC/230V AC/460V AC
Motor HP - Roof Ventilators 1/2 hp
CFM @ 0.000-In. SP 3655
Max. Inlet Temp. 180 Degrees
CFM @ 0.500-In. SP 3052
CFM @ 0.750-In. SP 2601
Sones @ 0.500-In. SP @ 5 Ft. 11.1
Sones @ 0.125-In. SP @ 5 Ft. 12.8
Max. BHP 0.54
CFM @ 0.125-In. SP 3527
Drive Type Belt Drive
Sones @ 0.250-In. SP @ 5 Ft. 12.0
Assembled/Unassembled Unassembled
Phase 3
Drive Package Included Yes
Item Centrifugal Downblast Roof Exhaust Fan
Adj. 12 3/8"H Roof Curb Stock No. 3C437
CFM @ 0.250-In. SP 3388
RPM 940
Wheel Material Aluminum
Speed Controllable No
Agency Compliance AMCA Sound & Air, UL/cUL 705
Includes Drive Package, NEMA 1 Junction Box
Housing Material Aluminum
Recommended 8 In. Fixed Curb Item No. 4HX41
Motor Voltage 208/230/460
Recommended 12 In. Fixed Curb Item No. 4HX49
Adj. 6 3/8"H Roof Curb Stock No. 4c454
CFM @ 0.875-In. SP 2272
Motor HP 1/2
Wheel Type Backward Inclined
Mounting Location Roof
Hz 60
CFM @ 0.625-In. SP 2844
CFM @ 0.375-In. SP 3234
Standards AMCA Sound and Air, UL/cUL 705
Bearing Type Regreasable Pillow Block
Base Shape Square
Airflow @ 0.000 in SP 3,655 cfm
Exhaust Airflow @ 0.000 in SP 3,655 cfm
Housing Material Fabrication Spun
Exhaust Airflow @ 0.375 in SP 3,234 cfm
Sound Level 10.3 sones @ 0.750 in SP and 5 ft, 10.6 sones @ 0.625 in SP and 5 ft, 11.1 sones @ 0.500 in SP and 5 ft, 11.4 sones @ 0.375 in SP and 5 ft, 12.0 sones @ 0.250 in SP and 5 ft, 12.7 sones @ 0.000 in SP and 5 ft, 12.8 sones @ 0.125 in SP and 5 ft, 9.8 sones @ 0.875 in SP and 5 ft
Brake Horsepower 27/50 hp
Features Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure
Electrical Connection Power Cord
High-Efficiency Motor No
Exhaust Airflow @ 0.500 in SP 3,052 cfm
Motor Location Out of Airstream
Nameplate Voltage 208-230/460V AC
Mount Type Roof Curb
Compatible Curb Manufacturer Part Number 2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
Motor Horsepower 1/2 hp
Current 1.7 to 1.7/0.85 A
Maximum Static Pressure 7/8 in wc
Spark Resistant Construction Type A
Maximum Inlet Air Temperature 180 Degrees F
Safety Features Birdscreen, Windband
Exhaust Airflow @ 0.125 in SP 3,527 cfm
Includes Drive Package Yes
Motor Speed 1,725 RPM
Motor Enclosure Open Dripproof
Includes Motor Yes
Frequency 60 Hz
Application Industrial and Commercial Applications
Resistance Properties Weather Resistant
For Air Type Clean Air
Exhaust Airflow @ 0.250 in SP 3,388 cfm
For High-Static Pressure Applications No
Assembly Unassembled
Maximum Fan Speed 940 RPM

Description

Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Wheel Diameter 18 1/2 in, Base Diameter Not Applicable, Base Length 30 in, Base Width 30 in, Base Shape Square, Nameplate Voltage 208-230/460V AC, Phase 3, Motor Horsepower 1/2 hp, Exhaust Airflow @ 0.000 in SP 3,655 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, For Air Type Clean Air, Includes Drive Package Yes, Includes Motor Yes, Mounting Location Roof

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