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TAG: Page 4 of 7 <br /> Type CRBA <br /> Belt Drive Centrifugal • con-overloading aluminum wheel <br /> computer balanced <br /> Power Roof Ventilator • Forced <br /> nent s motor <br /> comme partrt ment isolated from <br /> lit r* i ii_i_i_ B DIA. airstream <br /> ____B <br /> -- • Variable pitchmotor pulley <br /> • Vibration drive isolatorson drive frame <br /> • Weatherproof spun aluminum <br /> INDUSTRIES housing <br /> AMERICAN COOLAIR CORPORATION • <br /> NEMA Standard open drip-proof <br /> motors <br /> Accessories • Overlapping wheel/inlet venturi <br /> 16"Roof Curb 28.5"X • Heavy duty self-aligning pillow- <br /> AIDblock bearings with cast iron <br /> 28.5"O.D. -is- housing <br /> BDD Gravity Damper • UL Listed for Standard 705(most <br /> models) <br /> 1 7 <br /> A <br /> A SQ.I.D. <br /> Dimensions in inches <br /> A B C unless otherwise noted <br /> r 30 -1351/2 245/8 <br /> Weight: 201 lbs. Tip Speed: 4,653 ftlmin Outlet Velocity: 720 ftlmin <br /> Fan Data Motor Data Accessories <br /> Qty — <br /> Model No. CFM inWg RPM BHP MHP RPM Voltage/Ph Hz Encl. BDD ND <br /> 1 CRBA18KD1231 3,400 0.125 i 929 1 0.470 3/4 1,750 115V/230V 1PH 60 OPEN <br /> Sones LwA dBA dBA dBA Octave Band Sound Power(Lw) <br /> 5' @ 10' I @ 20' 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz <br /> 13.0 76 64 58 52 73 79 80 70 67 69 63 50 <br /> Air Density:0.075 Ibs/ft^3 AMCA Licensed for Sound and <br /> 1?5- -1 J:: Air Performance <br /> Power rating(BHP)does not <br /> include transmission losses. <br /> Bearing losses <br /> included. <br /> IOUSO 1 00 - I , Performan eratings do not <br /> RJR incude the effects of <br /> M.n GN•+cr appurtenances(accessories). <br /> Performance shown is for <br /> ew-r„� Installation Type'A':Free inlet, <br /> wrrww '�'� 0 75 -a ,.: c Free outlet <br /> __..ea C * The sound ratings shown are <br /> waa�• N loudness values in <br /> d <br /> hemispherical:ones at 1.5 m(5 <br /> CO ft.)in a hemispherical free field <br /> 0, ;, - -:i calculated per AMCA Standard <br /> c — 301. <br /> American Coolav Corporation certifies that d Values shown are for <br /> the Type CRBA units shown herein are Installation Type'A':Free inlet <br /> licensed to bear the AMCA seal.The ,I hemispherical sone levels <br /> ratings shown are based on tests and .1' - Sound ratings apply to sones <br /> procedures performed in accordance with only. <br /> Publication 211 and AMCA a <br /> Publication --311 and comply with the — _l <br /> requirements of the AMCA certified Ratings :1 I — ----------- :i t. <br /> Program. 500 1.000 1.500 2 000 2 500 3 000 3 500 4 :-: <br /> Volume Flow Rate(CFM) <br /> Notes: <br /> Project: Soundview Engineer: <br /> Location: Contractor: <br /> Submitted By: Date: 9/15/2022 <br /> Approved By: Date: <br /> FanSelect 6-December 2020 ver.6.7.0 <br />