Vertical Airfl Ow Units; Air Cooled Packaged Units - Data Aire DAMA-01 Installation, Operation And Maintenance Manual

NOTE: There are many available unit confi gurations for Mini Ceiling systems. Be sure to
identify the unit type and style before installing. There may be split condenser and con-
densing units that require separate or shared power.
NOTE: Condensation formation and frequent humidifi er fl ushing (units with humidifi -
er) are normal functions of this equipment. Drain connections must be made to ensure
proper water removal. Unit will require drain connections for condensate removal and
water connections for humidifi er make-up water, chilled water and/or hot water. Instal-
lation above equipment that could sustain water damage should be avoided.
1.3.1 Vertical Airfl ow Units
The evaporator section is typically mounted over a standard 2' x 4' T-bar ceiling grid supported by
four threaded rods. The four threaded rods must be securely attached to the building structure.
Raise the evaporator section with an appropriate lifting device. Attach washers, nuts and nut jams
to each threaded rod. Tighten the nuts so the weight is supported evenly. Be sure the unit is level.
Allow for the depth (5") of the supply/return air plenum when fi guring the height of the unit above
the ceiling.
The 5" tall vertical supply/return plenum assembly is attached to the bottom of the evaporator sec-
tion once the evaporator section is installed. Six screws fasten the plenum to the evaporator sec-
tion. The supply/return air grilles should be temporarily removed for access during installation. The
plenum typically mounts fl ush to the ceiling grid (depending on available space above unit).

1.3.2 Air Cooled Packaged Units

Air cooled package units require an additional condenser fan section to be mounted to the end of
evaporator section at the condenser coil. Place a gasket around the perimeter of the condenser
coil opening. Connect the female motor plug from the condenser blower section to the male plug
inside the evaporator section. Attach the condenser blower section using four (4) self-drilling # 10
sheet metal screws.
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