Titus MAB IOM - Manual (Page 6)

MAB Installation Manual
IOM-MAB-00 08-15-04
6 of 9
Motors and Drives
Units are normally shipped with motor and drive installed.
However; when mounting a motor on the adjustable base
in the field, use extreme care to ensure proper alignment
and belt tension.
Electrical Connections
Each unit has a mounted control box, and typically, the
motor is to be wired to this box. Only ODP, single- and
three-phase motors on 800 to 2000 CFM units are factory-
wired to junction box. All other motors require field wiring
to junction box located on side of the unit cabinet.
Note 1: Unit must be permanently grounded in
accordance with NEC and local codes and
ordinances. See the typical wiring diagrams shown in
Figure 7.
Note 2: Not all installations require a starter (some
motors utilize a contactor).
Figure 7. Wiring Diagrams
Installation of Options
In addition to the standard equipment, the following
optional equipment may require consideration during
installation.
•
Discharge grille plenum.
• Mixing box.
• Electric heat.
• Motor and drive selections.
Grille Plenum
The discharge grille plenum is designed for a freestanding
configuration set in an open area with a requirement for a
90° turn of the discharge air. See Figure 8. This option is
available on models MAB16 through 80.
1.
Check plenum alignment with unit. Remove screws
aligning with the smaller plenum cutouts. Retain
screws for later.
Note: Screws aligning with the larger cutouts
remain in place.
2. Remove grille from the plenum.
3. Position plenum so discharge is directed toward
the back or front of unit, as desired.
4. Align the ½-inch holes in the plenum with the unit’s
protruding screw heads.
5. Align the smaller ¼-inch holes in plenum and unit
together.
6. Square up plenum and unit; then reach through
grille opening to insert screws into the smaller ¼-
inch holes.
7. Tighten all screws to secure plenum.
8. Reinsert grille in plenum opening and secure with
screws retained previously. Adjust grille louvers
manually.
Figure 8. Grille Plenum Installation