Mars Air BD-26-144 Installation Manual

Document No: BD-IOM
Date: 1015

WINDGUARD BELT DRIVE (BD) 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: BD-14 Series
(14’), BD-18 Series
(18’), BD-22 Series (22’), BD-26 Series (26’) and
BD-30 Series (30’). The units are typically
overhead mounted horizontally above the door
opening. They can also be vertically mounted
alongside the opening. Heated units must be
mounted on the inside or the protected side of the
opening. The motors used in the BD Series range
from 5 HP to 30 HP (see submittal for details).

All the BD Series come standard with an
expanded metal air intake grille(s). The BD Series
can be configured with Flat Bank or V-Bank
Sections, as options.

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

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.

WARNING

Precaution should be taken in explosive atmospheres.

injury due to
coming in
contact with
moving parts,
as well as
other potential
hazards.

WARNING

When servicing the product, motor may be hot
enough to cause pain or injury. Allow motor to cool
before servicing.

RECEIVING AND INSPECTION

Upon receiving the product, check to make s ure all
items are accounted for by referencing the Bill of
Lading to ensure all items were received. Inspect
each carton for shipping damage before accepting
delivery. Notify the freight carrier if any damage is
noticed. The carrier will make notification on the
delivery receipt acknowledging any damage to the
product. All damage should be note d on all copies
of the Bill of Lading which is countersigned b y the
delivering carrier. A Carrier Inspection Report
should be filled out by the carrier upon arrival
and a report given to the Traffic Department. If
damaged upon arrival, file a claim immed iately with
the carrier. Any physical damage to the unit after
acceptance is not the responsibility of Mars Air
Systems.

UNPACKING

Verify that all parts, components and accessories,
and the correct quantities of each have been
received. If any items are missing, report
shortages to Mars Air Systems directly to arrange
for obtaining the missing items. Again, verify
quantities received against those on the Bill of
Lading only, as multiple shipments may be
involved.

INSTALLATION

Typical Mounting – Wall or Ceiling Mounted
Horizontally Above the Door Opening

1. Overhead installation is recommended to
prevent the possibility of the unit falling if the
wall to which the unit is mounted is hit by a
truck or material handling device. If however,
wall or bracket mounting is preferre d, additional
holes may be drilled in the side panels of the
housing.

Note: Bracket/Support mounting is not
generally recommended for Air Curtains
equipped with steam or hot water coils.
Overhead installation using threaded rods with
independent suspension of coils is
recommended.

2. Center the unit over the opening. The air
curtain shall be equal to or greater than the
width of the opening.

3. Four pre-punched 1/2” mounting holes on the
top of the unit are provided for your
convenience. These holes must be utilized to
secure the product overhead. All hardware is
field provided by others.

4. Mount the product such that the discharge is 1”
above the opening and all obstacles . (FIG. 1)

Note: If the product is installed higher than the
recommended 1” above the opening, then it
must be moved 3/8” away from the wall for
every 1” that it is moved up. Any void between
the wall and the product must be sealed, by
others, to optimize performance.

FIG. 1

5. Use four (4) threaded rods for overhead
installation or four (4) threaded bolts for wall
installation. All hardware is field provided by
others. (FIG. 1)

6. If applicable, for tandem instal lation or products
mounted side by side, allow no more than 6”
between the two products. For overhead
installation using threaded rods, the products
may require a beam, by others, to span the full
distance of the mounting length. (Reference
Accessory Installation Supplement)

7. All wires must be connected to the external
junction box(s) of the unit.

8. The unit must be wired per NEC and local
codes.

Electrical Field Wiring

The unit and any optional accessories must be
wired with the proper voltage to the junction box
per the wiring diagram. (FIG. 2, unheated products
only)