LPD and LPD-SF Low Profile Direct Drive Centrifugal Roof/Sidewall Exhaust Fans

Centrifugal Roof & Wall Fan Series

LPD Models

Model Features

  • Exhaust air up to 420 CFM in high static pressure applications up to 1-3/4" w.g.
  • Low profile attractive spun aluminum exterior
  • Direct drive units have low sound levels and quiet operation
  • Non-overloading backward inclined wheel for efficiency at higher static pressures
  • Roof or sidewall mounting options
  • AMCA Air and Sound Licensed
  • cULus 705 Listed
  • This product meets the requirements of Buy American (2009) and Build America, Buy America (BABA), as part of IIJA (2022). Download letter here.

AMCA Air and SoundcULus   BABA-ACT

Model Overview

LPD and LPD-SF direct drive fans are designed to exhaust air in low CFM (up to 420), with high static pressure capability up to 1-3/4". When aesthetics are a concern, the low profile design of the LPD and LPD-SF is the perfect choice. The LPD and LPD-SF is generally used for bathroom, office or light commercial ventilation in ducted systems; and can be mounted either on the roof or wall as the application requires. The LPD is designed for curb mounting. The LPD-SF has a flat, self-flashing base for roof or sidewall mounting.

5-year fan housing warranty, 3-year motor warranty

Size CFM Range Max SP
6 (@ 60 Hz) 52 to 302 1-1/2"
8 (@ 60 Hz) 52 to 423 1-3/4"
6 (@ 50 Hz) 67 to 279 1-1/4"
8 (@ 50 Hz) 43 to 390 1-1/2"
Dimensional drawing for the LPD models.

LPD (Curb Mount)

Dimensional data is displayed in inches.

Size A B C
6 16-1/2" 7" 16-1/2"
8 16-1/2" 7" 16-1/2"
Dimensional drawing for the LPD sidewall models.


Dimensional data is displayed in inches.

Size A B C
6 16-1/2" 7" 16-5/8"
8 16-1/2" 7" 16-5/8"

Additional accessories are available for certain products. Contact your S&P Representative for more information about these accessories.

Standard Accessories

Curb Hinge Arrangement  
Roof Curb Submittal
Solid State Speed Controls  

Product Line Overview
Centrifugal Roof and Sidewall Catalog
Typical Specification Sheet

  • General/Clean Air
  • Spark Resistant