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
4. on the blower wheel housings for proper rotation. If the
motor is rotating incorrectly, switch two of the 3 phase
power or motor leads and the motor will rotate the
5. opposite direction. Make sure all motors are
turning in the same and proper direction. (FIG. 2)
6. Replace the air intake grille(s) or filter(s) once the
product has been properly tested.
FIG. 2
FIG. 3
START-UP
This product has been assembled and tested at the
factory prior to shipping. The following procedures should
be performed to assure its performance. Before
continuing with the start-up, it is important to recognize
the safety controls furnished with the unit.
SCREWS PROVIDED TO
SECURE BLOWERS TO
HOUSING
WALL MOUNTING
HOLES
TOP MOUNTING
HOLES
SCREWS FOR INTAKE
SCREEN (RIGHT) AND
BOTTOM PANEL (LEFT)
STRAP PROVIDED TO
SECURE MOTOR TO
HOUSING
DOOR
OPENING
Typical Door Limit
Switch Installation for
Split Sliding Doors
Typical Door Limit
Switch Installation for
Commercial Swing Doors
Typical Door Limit
Switch Installation for
Industrial Roll Up or Lift Doors
CONTROL
PANEL
Field Conduit Wiring
TO
POWER
PANEL
MARS
Wheel Rotation
WARNING
The following items must all be completed by a qualified
installer and checked off when completed
A. Re-check that the product has been installed properly
and is level and secure.
B. Check all terminal screws are tight and field wiring is
connected in accordance to National Electrical Code
and wired per the enclosed wiring diagram. For
electric heated models, ensure that the coils are
secured and not touching each other on any metal
surface.
C. Verify proper voltage prior to powering the product.
(See product label for reference).
D. Check all field wired components “if supplied” are
wired correctly.
E. Check that the inlet air supply and the discharge air
supply are free of obstructions.
F. Check that all air filter(s) and/or air intake grille(s) are
in place and installed properly, as originally shipped.
G. Verify voltage to the product once more and turn
power on.
H. Regardless of whether the product is mounted on the
inside or outside of the door opening, set the air
directional vanes in the discharge nozzle slightly
outward to approximately 10-15° towards the outside,
or the wind load. (FIG. 4)
I. For products with control panels, turn the HOA (Hand-
On-Auto) selector switch to “On” position and open
the door to energize the product. For products without
a control panel or an On/Off switch, open the door to
energize the product.
J. If heated products are installed, reference
Heated
Products Supplement
.
K. For three phase units, verify direction of rotation of
blower wheels (note direction arrows on the blower
wheel housing). Correct if needed by changing
polarity of three phase power.
WARNING
Prevent hazard of electrical shock. More than one
disconnect switch may be required to de-energize
this product.
FIG. 4
