LSFBelt Drive Centrifugal Filtered Roof Supply Fan with Louvered Housing

Centrifugal Filtered Supply Fan Series

LSF Model

Model Features

  • Supply air to over 13,000 CFM in static pressure capabilities to 2" w.g.
  • Heavy-galvanized construction
  • Belt drives permit easy performance adjustments when needed
  • Forward curved centrifugal blower for efficient airflow at low sound levels
  • Filters are washable and reusable
  • AMCA Air and Sound Licensed
  • cULus 705 Listed

AMCA Air and Sound cULus

Model Overview

Louver Filtered Supply Fans units are roof mounted filtered supply fans rated from 375 to over 13,000 CFM, with static pressure capabilities to 2". LSF's architecturally pleasing; heavy-gauge aluminum louver design provides long life and the utmost in performance efficiency. All models are belt driven for easier performance adjustment and quieter operation. Adjustable motor pulleys further simplify fan speed changes.

LSF's are used to supply filtered make-up air in commercial and industrial applications such as manufacturing and assembly areas, kitchens, athletic clubs and many others.

5-year fan housing warranty, 1-year motor warranty

Size CFM Range Max SP
9 431 to 1,279 1"
10 421 to 1,323 1-1/2"
12 391 to 1,059 1-1/4"
15 293 to 966 1-1/2"
18 253 to 992 2"
20 222 to 849 2"
Dimensional Drawing for LSF Models

Dimensional data is displayed in inches.

Size A B C D E
9 24-1/2 37-3/4 23-3/4 16-1/8 24
10 28-1/2 41-3/4 23-3/4 16 28
12 28-1/2 41-3/4 30-1/2 16 28
15 32-1/2 45-3/4 32 18 32
18 36-1/2 50 38-5/8 23 36
20 51-1/2 65 47 26 51

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

Standard Accessories

Automatic Damper  
Duct Adapter  
Motor Operated Damper  
Roof Curb  
Side Discharge  

General Catalog Section
Submittal
Instruction and Operation Manual

  • General/Clean Air