CyberOne EC CW IOM Manual
7
2.3.1 Conditioned Space
Certain steps should be taken to minimize the effects of
the environment surrounding the conditioned space. This is
especially important for critical/precision room preparation
(computer rooms/labs) requiring close tolerance control of
temperature and humidity. The conditioned space should be
well insulated and include a vapor barrier. The installer
should ensure that the proper insulation rating is used
based on the design of the space, which was the basis for
the system selected. The following table is a recommended
minimum R-value (thermal resistance) to ensure optimum
equipment operation.
Structure
R-Value
Ceiling
R-38
Wall
R-21
Floor
R-19
Door
R-5
The vapor barrier is the single most important requirement
for maintaining environmental control in the conditioned
space. The vapor barrier in the ceiling and walls can be
a polyethylene film. Concrete walls and floors should be
painted with a rubber- or plastic-based paint. Doors and
windows should be properly sealed and a door sweep used
to minimize leakage. Outside or fresh air should be kept to a
minimum (as it adds to the cooling, heating, dehumidification
and humidifying loads), while maintaining the requirement of
the Indoor Air Quality (IAQ) standard. Ignoring the above can
cause erratic operation, unstable room control and excessive
maintenance costs.
2.4
Mounting/Placement
CyberOne EC CW systems that are not ducted are designed
to be located in the conditioned space. Ducted units may be
located either inside or outside the space to be conditioned
but are designed to supply air to only one room. They have
a compact footprint which allows the units to be placed in a
corner or between cabinetry. It is recommended to position
the unit to obtain optimum air circulation.
NOTE
T
hese units use welded frame construction for unit rigidity.
The system is designed to be installed on a roof curb,
which is provided by others and ducted into a singular
space to be conditioned. Ensure the curb is sealed to
prevent air leakage. See the detail drawing provided with
the unit for interface dimensions. These units are designed
to be ducted to a space to be conditioned and are intended
to condition only one room.
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.
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.
2.4.1 Floor Mounting
The CyberOne EC CW unit 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 (see Figure 6), 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.
