Mars N2 Unheated Series Submittal

2
RECEIVING AND INSPECTION
Upon receiving the product, check to make sure 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 noted
on all copies of the Bill of Lading which is countersigned
by 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 immediately 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. Remove the air intake grille(s) and/or filter(s) from the
product and set aside. Only products 48” or less, except
HV2 and EP2 models, are shipped with the motor fan
assembly (MFA) mounted inside.
2. Measure the housing and center it over the opening.
The air curtain shall be equal to or greater than the width
of the opening.
3. Total of two (2) key-hole slots and six (6) pre-punched
mounting holes are provided for your convenience. The
7/16” pre-punched holes (4) provided, (2) on each end
for top/celling mounts. The 1/2” key-hole slot and 7/16”
pre-punched hole (2) provided, (2) on each end for wall
mounts. These holes must be utilized to secure the
product to the wall or ceiling. If necessary, holes may
be drilled inside the product
to align with the stud
spacing. 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.
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, optional Adjustable Mounting Brackets,
Side Extension Plates and Extended Wall Mounted
Brackets are also available for installations over a
Vertical Lift or Drum Roll-up type door. (Reference
Accessory Installation Supplement)
7. If applicable, for tandem installation 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)
8. All wires must be connected internal of the unit and
some knockouts are provided. However, it may be
necessary to create your own knockout, as required.
9. The unit must be wired per NEC and local codes.
FIG. 1
Motor Fan Assembly Installation and Electrical Field
Wiring
1. Once the housing is installed over the opening, the
Motor Fan Assembly (MFA) must be re-placed and
securely fastened. For products with the MFA shipped
loose, wing nuts or hex nuts are provided inside the unit
(FIG. 2). For heated MFA installation, reference Heated
Products Supplement Sheet.
2. The unit and any optional accessories must be wired
with the proper voltage to the junction box per the wiring
diagram. (FIG. 3, unheated products only)
3. All 3 phase motors are bi-directional, which means they
can rotate in either direction. Follow directional arrows
on the blower wheel housings for proper rotation. If the
motor is rotating incorrectly, switch two of the 3 phase
WARNING
Precaution should be taken in explosive atmospheres.