Install Instructions
   Document No: IND2-IOM 
   Date: 1015 
1 
 STANDARD 2 (STD2), HIGH VELOCITY 2 (HV2), EXTRA POWER 2 (EP2) 
AND ETL SANITATION CERTIFIED INDUSTRIAL SERIES 
Installation, Operation and Maintenance Manual 
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or 
maintain the product described. Protect yourself and others by observing all safety information. Failure to comply 
with these instructions could result in personal injury and/or property damage.  Retain these instructions for future 
reference. 
OVERVIEW 
Mars Air Curtains are 
designed to cover door 
openings, providing both 
temperature 
control/environmental 
separation and flying insect 
control, when the building’s 
doors are opened. Typical 
installation heights are: 
Standard 2 Series 
(Environmental up to 10’, 
Flying Insect Control up to 8’), 
High Velocity 2 Series 
(Environmental up to 12’, 
Flying Insect Control up to 10’), and Extra Power 2 
Series (Environmental up to 16’, Flying Insect Control 
up to 14’). All ETL Sanitation Certified Series should be 
mounted at the Flying Insect Control heights referenced 
above. The units are typically wall mounted horizontally 
above the door opening. They can also be suspended 
from the ceiling or vertically mounted along side the 
opening. The units are ETL Listed for either an inside 
or outside mount. Heated units must be mounted on 
the inside or the protected side of the opening. The 
motors used in the Standard 2, High Velocity 2 and 
Extra Power 2 Series are 1/2HP, 1HP and 3HP 
respectively. The ETL Sanitation Series utilizes 1/2HP 
and 1HP motors. 
The Standard 2, High Velocity 2 and Extra Power 2 
Series come standard with an air intake grille. They can 
also be configured with an aluminum mesh air intake 
filter instead of the air intake grille or in conjunction with 
it. 
GENERAL SAFETY INFORMATION 
Use this product only in the manner intended by the 
manufacturer. If you 
have any questions, 
contact the 
manufacturer. Only 
qualified personnel 
should install this 
product. Installing 
personnel should have 
a clear understanding 
of these instructions 
and should be aware 
of general safety 
precautions. Improper 
installation can result 
in electric shock, 
possible injury due to 
coming in contact with moving parts, as well as other 
potential hazards. 
  WARNING 
To reduce the risk of fire, electric shock or injury to 
persons, observe the following. 
A. Always disconnect, lock and tag power source before 
installing or servicing product. 
B. Installation work or electrical wiring must be done by 
qualified person(s) in accordance with all applicable 
codes and standards, including fire-rated construction. 
C. The combustion airflow needed for safe operation of 
fuel burning equipment in the area may be affected by 
the product’s operation. Follow the heating equipment 
manufacturer’s guideline and safety standards, such 
as those published by the National Fire Protection 
Agency (NFPA), the American Society of Heating, 
Refrigeration and Air Conditioning Engineers 
(ASHRAE) and local code authorities. 
D. When cutting or drilling into a wall or ceiling, be careful 
not to damage electrical wiring and other hidden 
utilities.






