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RTA-SH Series Roof Exhausters - Belt Drive

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  • RTA-SH Series

Quick Overview

RTA-SH Series Roof Exhausters - Belt Drive

Details

RTA-SH model suitable for normal use in clean, dry air with a maximum ambient temperature of 93º C (200º F). RTA-SH is designed to exhaust smoke in the event of a fire. It is in compliance with smoke control systems requirements of 500ºF for 4 hours and 1000ºF for 15 minutes. Two spring loaded arms are released when temperatures reach above 165ºF to force open the dampers.

  • TEFC, ball bearing motor is out of air stream and is accessible from the roof.
  • Galvanized steel wind-band and rain-proof butterfly dampers.
  • Heavy duty pulleys and belts out of air stream.

High Heat Features.

  • Heavy gauge steel prop.
  • High heat cast iron pillow block bearings (out of air stream), complete with external grease fittings.
  • 500° F for 4 hours and 1000° F for 15 minutes.
  • Arms rated for snow load of 10 lbs/ft2.

Dimensions

       
MODEL #A Dia.B Dia.C Sq.DEFG
RTA-SH4242 3/8"48 5/8"48"2 1/2"22727
RTA-SH4848 1/2"54 5/8"54"2 1/2"23031
RTA-SH5454 1/2"60 5/8"60"2 1/2"23640

Options

  • Roof Curbs.
  • Disconnect switch.

Specifications

TO ORDER RTWA MODELS REPLACE RTA WITH RTWA WHEN ORDERING FROM TABLE BELOW. 
MODEL #FAN
RPM
H.P0" S.P.1/4" S.P.1/2" S.P.3/4" S.P.1" S.P.Min. CFMdBA @ 10Ft. 
SINGLE PHASETHREE PHASECFMBHPCFMBHPCFMBHPCFMBHPCFMBHP 
BLADE DIAMETER42"RTA42SHT10200RTA42SHT30200*7702199201.65150801.80------1400061 
RTA42SHT10300RTA42SHT30300*8953228402.60196202.80149402.9----1400065 
RTA42SHT10500RTA42SHT30500*10055259803.66232303.89199804.01----1400067 
RTA42SHT10750RTA42SHT30750*12057.5315206.26295306.54270406.78242306.89202707.071400072 
RTA42SHT11000RTA42SHT31000*133510351708.49334108.76312709.08290209.32262309.391400075 
48"RTA48SHT10300RTA48SHT30300*7453243302.55205102.76------1800063 
RTA48SHT10500RTA48SHT30500*8855294404.10263704.46223804.72----1800067 
RTA48SHT10750RTA48SHT30750*10057.5338505.93310806.47283306.81247406.96--1800071 
RTA48SHT11000RTA48SHT31000*110510372707.89347608.54325208.99297609.11261409.291800073 
--RTA48SHT31500*1265154290011.704086012.303879013.133627013.543429013.661800076 
54"RTA54SHT10500RTA54SHT30500*7105371304.26316804.67------2300068 
RTA54SHT10750RTA54SHT30750*8107.5428906.20386606.85332106.99253906.87--2300071 
RTA54SHT11000RTA54SHT31000*90510484508.54446409.41401409.73349809.78272209.532300074 
--RTA54SHT31500*1025155552012.105211012.924828013.814431014.173966014.222300078 
                   
For three phase motors, substitute '*' with 'M' for 230/460 volt (if 208V required please specify) or 'P' for 575 volt. Fan blades tested in accordance with AMCA standard 210, figure 12. dBA ratings shown are measured at 0" static pressure and should be used as a guideline only.