CyberAiR DX Floor Mounted IOM Manual
TOP DUCTED RETURN WITH
FLOOR DISCHARGE
TOP FREE RETURN WITH
FLOOR
SUPPLY
AIR OUTLET
SUPPLY
AIR OUTLET
RETURN
AIR INLET
DUCT
AIR INLET
2.5.2
Downflow Configuration Air Patterns
In a downflow configured unit, the conditioned supply air discharges through the bottom of the cabinet into a
raised floor. There are two basic return air distribution methods: top free return and top ducted return (see
Figure 11).
The return air inlet is provided with a turned in flange on top of the cabinet for connection of ductwork (refer to
the installation drawing provided with the unit). The connection of ductwork to the unit may be made with
either pop rivets or self-tapping screws.
If ductwork is to be installed, always consult your state and local codes when determining ducting
requirements. The duct system should be designed to allow the air to move with as little resistance as
possible.
Figure 11- Downflow Configuration Air Patterns
2.6 Optional Equipment (Field Installed)
NOTE
:
Do not mount any optional equipment on the unit access doors.
2.6.1
Floor Stands
Install the optional floor stand directly on the sub-floor, ensuring the side with the “FRONT” label is facing the
same direction as the front of the precision A/C unit. Refer to the floor stand assembly drawing for the
dimensions required to cut the raised floor. The floor stand is designed with adjustable legs, allowing for
leveling and overall height adjustment. Refer to the floor stand assembly drawing for minimum and maximum
height adjustments.
Adjust the height of the floor stand as described in the sections that follow. Once it is level and even with the
raised floor, lock all the feet in place. Place the A/C unit on top of the stand.
2-5
