Mechanical Technology — May 2013
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Innovative engineering
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door units on several different floors. “DVM S
level difference between indoor units has been
increased to 50 m, which is three times longer
than our competitors,” says Larkan.
Other improvements include:
• Dynamic current control for energy manage-
ment allows the maximum current draw to
be programmed to match the peak demand
allowances and save energy. This feature pre-
vents the excessive use of power and prevents
the system from entering punitive tariff bands
should demand be unusually high.
• Silent mode, which reduces night noise by
15 dB. “The maximum temperature load
peaks at between 2:00 pm and 8:00 pm,
but between 8:00 pm and 8:00 am, while
it is cooler, silent mode kicks in to give both
valuable cost savings and reduced energy
use,” Larkan explains.
• When using the heat recovery option, hot wa-
ter can be generated from the energy rejected
while cooling the compressed refrigerant. This
can be used for sanitary hot water at 50°C
or at 80°C for commercial applications. Both
options save money on heating.
• To assist installers, the new Samsung DVM
S system is compatible with an S-Checker,
which automatically provides operational
test results, in pdf format, to ensure that the
system is left fully operational and optimised
on installation. Automatic inspection of the
indoor units can be performed at any time
and reports sent via wi-fi to a PC, tablet or
smart phone, enabling them to be emailed
to a plant or building manager.
• Also accommodated are remote system soft-
ware updates. “There is no longer a need to
plug in to the individual unit to upgrade them.
All indoor and outdoor software updates can
be sent to the relevant units via the Internet
from the comfort of any office,” he reveals.
“The Samsung DVM S offers the largest capac-
ity on the smallest footprint and is the global
top performer with respect to energy efficiency,
saving more money on operational costs than
any comparative system on the market,” Larkan
concludes.
The ZenManager app
To accompany the launch of the DVM S, Sibusiso
Guzana, systems sales engineer, introduced the
company’s new building management system,
Samsung ZenManager. “ZenManager is an en-
ergy reducing, easy access monitoring and con-
trol system. It’s a complete estate management
package with fantastic access via smartphones,
tablets, laptops or PCs,” begins Guzana.
It is a software package that embeds, at
its core, energy saving algorithms and options
that allow better management of energy use
in commercial buildings and its
air conditioning, lighting, water
heating, and other electrical sys-
tems with energy saving potential.
“ZenManager is the first ever build-
ing and utilities management app.
It allows managers to access and
review data, to pinpoint exactly
where energy is being used exces-
sively and to react quickly to pre-
vent unnecessary use,” he explains.
Also included is a remote fault
manager. Automatic error notifica-
tions are sent to managers as soon
as faults are detected, enabling
relevant people to be dispatched
quickly to correct problems, reduc-
ing system downtime.
Real time access to facts about a
building’s power consumption and
the temperatures make for better
tracking and operational analysis
and better matching of energy
consumption to real demand.
“Temperature limits can be set
to cap the upper or lower limits
of the air conditioning system to
ensures that the air conditioners
are only producing what is actually
needed,” Guzana explains. “And the
ability to manage the DVM S via a
smartphone “revolutionises control
systems as we know them,” he
concludes.
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