CyberOne EC DX IOM Manual
NOTE
Placement of the floor or ceiling registers is
important. If they are too close to the unit, the
supply air will be recirculated back to the unit
before it has circulated throughout the space.
See Figure 6 on page 9. The unit is designed to be located
directly on top of the floor (typically upflow) or on a raised floor
(typically downflow).
CAUTION
Ensure the mounting surface is capable of
supporting the equipment. Before mounting the
unit, refer to the weight table provided on the
installation drawing. On some raised floor
installations, a floor stand is required, depending
on the load capacity of the existing raised floor.
2.3.1
Precision A/C Unit
The CyberOne EC precision A/C system uses a frame and
panel construction for unit rigidity and full service accessibility
while the unit is mounted in place.
If a floor stand is selected, refer to the installation drawing
provided and cut out the raised floor to match the unit’s
overall base dimension. If a floor stand is not selected, use the
installation drawing and cut out the raised floor to match the
blower discharge opening(s) and cut out the holes required
for piping and wiring through the raised floor.
NOTE
The equipment must be level to operate properly.
2.3.2
Outdoor Equipment
Remote condenser/condensing units must be installed in a
secure location where it cannot be tampered with and the
service disconnect switch cannot be inadvertently turned
off. Locate the remote condenser/condensing unit where the
fan is not likely to draw dirt and debris into the coil fins. There
should be at least 24 in. of clearance around the condenser
to ensure adequate airflow to the coil. Secure the condenser/
condensing unit to prevent the system from moving during
operation. It is recommended that the remote condenser be
installed with vibration mounts to reduce vibration transmitted
to the mounting surface.
2.4
Air Distribution Connection
2.4.1
Downflow Configuration Air Patterns
In a downflow configured unit, the conditioned supply air
discharges through the bottom of the unit into a raised floor.
There are two basic return air patterns: top free return and
top ducted return (see Figure 7).
Figure 7. Downflow Configuration Typical Air Patterns
10
TOP DUCTED RETURN
TOP FREE RETURN
SUPPLY
AIR OUTLET
SUPPLY
AIR OUTLET
RETURN
AIR INLET
RETURN
AIR INLET
