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300DD-EC Forward Curved Roof Exhauster

  • SKU:
  • 300DD-EC SERIES

Quick Overview

300DD-EC Forward Curved Roof Exhauster

Details

  • High efficiency direct drive motor for energy efficient low maintenance applications.
  • Square base allows discharge to be oriented in any of 4 directions.
  • Back draft damper and bird screen included.
  • Cabinet insulated with 1/2” fiberglass insulation.
  • EC Motor offers true variable speed operation and up to 70% energy savings over PSC motors.

Dimensions

      
D is an inside dimension. Curb size must be smaller to allow for flashing. 
MODELABC* D INSIDESHAFT DIAMETERWEIGHT (lbs) without motor 
 
309DD24 3/8"19 3/8"10 5/8"24"3/4"63 
310DD28 3/8"21 3/8"11 3/8"28"3/4"88 
312DD32 3/8"24 5/8"13 1/8"32"3/4"113 
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        

Specifications

MODELMOTORAIRFLOW (CFM @ Static Pressure)
HPVariable SpeedMax RPM0"0.25"0.5"0.75"1"1.25"1.5"1.75"
HighLowHighLowHighLowHighLowHighLowHighLowHighLowHighLow
309DD050EC1/2Y*120017007001500500132550012005001000500300300--------
309DD100EC1Y*120021507001875500157550012005001000500300300--------
310DD050EC1/2Y*1100205010001800600150040013004001050400------------
310DD100EC1Y*1100260010002375600220040019004001250400750400--------
312DD050EC1/2Y*10002600170022508001850600155060012506001000600--------
312DD100EC1Y*10003300170030508002700600240060021506001600600--------
                    
*Minimum motor speed 425 RPM (EC Models).
EC Motors can be controlled using the built in potentiometer on motor or by using a 0 to 10 V controller, or by a remote potentiometer.
*REVIEW FAN CURVES BEFORE ADJUSTING RPM TO ENSURE LOAD DOES NOT EXCEED MOTOR HP.