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| Hotels ,Motels ,Design Concepts |
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Wide load swings and diversity within and between rooms
require the design of a flexible system for 24-hour
comfort. Besides
opening windows, the only method of providing flexible
temperature
control is having individual room components under individual
room control that can cool, heat, and ventilate independently
of the
equipment in other rooms.
In some climates, summer humidity becomes objectionable
because of the low internal sensible loads that result
when cooling
is on-off controlled. Modulated cooling and/or reheat
may be
required to achieve comfort. Reheat should be avoided
unless some
sort of heat recovery is involved.
Dehumidification can be achieved by lowering cooling
coil temperatures
and reducing airflow. Another means of dehumidification
is desiccant dehumidifiers.
Some people have a noise threshold low enough that certain
types of equipment disturb their sleep. Higher noise
levels may be
acceptable in areas where there is little need for air
conditioning.
Medium and better quality equipment is available with
noise criteria
(NC) 35 levels at 3 to 4 m in medium to soft rooms and
little sound
change when the compressor cycles.
Perimeter fan coils are usually quieter than unitary
systems, but
unitary systems provide more redundancy in case of failure |
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