J&D MAnufacturing JD-VMSA72N Instruction Manual

Construct structurally sound 76½” 

square finished opening.

Correct orientation of fan. From the 

inlet side the motor will be located 

in the bottom right corner.

76½”

76½”

FINISHED

OPENING

(Inside Dimensions)

IS183-12H

J&D Manufacturing • 6200 Hwy 12 • Eau Claire, WI 54701 • 1-800-998-2398 • www.jdmfg.com 

Page 1 of 4

Please read over all instructions carefully before you begin. 

If you have any questions please call your local dealer, or 

contact J&D Manufacturing at 1-800-998-2398. 

INSTALLATION

PARTS LEGEND

INCLUDED ASSEMBLY HARDWARE - TO SCALE

MEGA STORM 

72” FIBERGLASS EXHAUST FAN

WARRANTY

J&D Manufacturing warrants all products are free from defects in materials and 

workmanship under normal use for the period of one year from date of purchase. 

Our warranty does not cover normal or regular wear and tear. J&D Manufacturing 

can repair or replace at our option, any product or part of the product that is found 

to be defective. Our warranty applies to materials only, and does not include return 

freight, delivery, loss or damage to personal property, cost of removal or 

installation, any incidental or consequential damages or labor. This warranty does 

not apply to products which are misused, abused, altered, improperly installed or 

subject to negligence. All warranties must be approved through our warranty 

department. The original purchaser must present a copy of the invoice for the 

defective product. One year is our standard warranty unless specified on our 

literature or in the installation instructions or user manuals.  

RECOMMENDED TOOLS FOR INSTALLATION AND ASSEMBLY  

(NOT PROVIDED)

Measuring 

Tape 

Safety Glasses

1/2" Socket

1/2" Socket

Socket Wrench

Drill

 and Drill Bits

3/16”

3/8”

Rivet Gun

Phillips Head

Screwdriver

INSTALLATION HARDWARE IS NOT PROVIDED

Guard

(14) Aluminium Rivet

3/16” x 1/4"

(14) Backup Washer

3/16”ID x 1/2"OD

(14)

Shutter Clips

Shutter

(8) Phillips Truss Bolt

5/16”-18 x 1”

(8) Nylock Flange Nut

5/16”-18

Housing

View from inlet side of fan

Motor

72  FIBERGLASS EXHAUST FAN

WARRANTY