
IMPORTANT: 
Read and understand all of the instructions in this manual before assembling,
 
starting, or 
servicing the fan. Improper use of this fan can cause serious injury. Keep this manual for future reference.
For general ventilating use only. Do not use to exhaust hazardous or 
explosive materials and vapors.
 
Never use the fan in spaces which con-
tain products such as gasoline, solvents,
 paint thinners, dust particles, 
volatile or airborne combustibles, or any unknown chemicals.
Model Numbers: 
MAC-12F, MAC-20F, MAC-20FOMNI, MAC-24DCT, MAC-30BCT, MAC-36-DCT-BDF
CONSUMER: READ AND SAVE THESE INSTRUCTIONS
CAUTION
THIS IS A FAN - NOT A TOY! TO REDUCE THE RISK OF PERSONAL 
INJURY AND ELECTRIC SHOCK, FANS SHOULD NOT BE
 PLAYED 
WITH OR PLACED WHERE SMALL CHILDREN CAN REACH IT.
To guard against electric shock while operating, do not allow fan to come in 
contact with other grounded objects such as pipes, radiators, etc.
Risk of fire, electric shock, or personal injury when performing ser-
vice or maintenance. Unplug or disconnect the fan from the power 
supply before servicing.
CAUTION: Automatically operated device - to reduce the risk of 
injury disconnect from power source before servicing.
To reduce the risk of fire or electric shock, do not use this fan with 
any solid- state speed control device.
Safety Information
To Reduce The Risk Of Electric Shock And Injury To Persons, Do 
Not Use In a Window.
Do not operate any fan with a damaged cord or plug. Discard fan or 
return to an authorized service facility for examination and/or repair.
Do not run cord under carpeting. Do not cover cord with throw rugs, 
runner, or similar coverings. Do not route cord under furniture or appliances. Arrange cord 
away from traffic areas and where it will not be tripped over.
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Sauk Rapids, MN 56379 USA • Toll Free (800) 641-6996
Fax: 320-251-2922 • Web: www.masterindustrialproducts.com • Email: info@pinnacleclimate.com
© 2019 Pinnacle Climate Technologies, Inc. MAVD-416
User’s Manual & 
Operating Instructions
HIGH VELOCITY 
FAN
WARNING: This product can expose you to chemicals including lead, 
which is known to the State of California to cause cancer and birth 
defects or other reproductive harm. For more information go to  
www.P65Warnings.ca.gov.