VRV IV sets the standard …again - Daikin

Environmental awareness
The Daikin Response
Daikin, always the leader in air conditioning technology,
has embraced the challenges of the EU 20-20-20 declaration and
Energy Efficiency Directives and has moved positively to take a
market leadership position on many issues.
Many years ago, we developed the inverter technology that
is now installed in all of our air conditioning units. The inverter
system supplies full load power at start up but then monitors the
actual heating or cooling demand and steadily reduces the power
being used until the correct temperature is reached. It then
effectively turns itself off until a change is noted at which point it
applies sufficient power to bring the temperature back to the set
point. This direct link between temperature control and energy
usage means that inverter driven air conditioners are up to 30%
more energy efficient. The eco-design requirements are very
ambitious and will in the end ban non-inverter technology.
Temperature / Power input
Quick start
Set temp.
Temperature
remains stable
The way forward
Heat pump or air
conditioner without
Inverter
Heat pump or
air conditioner with Inverter
Time
Seasonal efficiency
Over the years we have been concerned about letting our
clients know the true seasonal energy efficiency of our products,
as the rating system then in place was misleading. Our vision
on this has been vindicated and the introduction of seasonal
performance will ensure a better understanding of the
energy usage of all air conditioning systems. We have been
designing and engineering our equipment to achieve marketleading
SEERs and SCOPs and thus contributing to a reduction
of energy used.
All in all, the European Union’s climate concerns have added a new urgency to our ongoing innovation and R&D – we are confident of
our response and that it will deliver huge benefits to the customers in terms of more controllable solutions giving perfect comfort, reduced
operating costs and a much lower ecological impact.
7
Heat pump technology
In many ways, it is with our advanced heat pump technology
and heat recovery systems that we can do most to
contribute towards the EU’s climate targets. Our use of heat
pumps to extract heat from the ambient air (a renewable
heat source referred to as aerothermal energy) is very well
established and helps reduce the energy usage of whole
buildings. In addition, however, heat pumps can be used to
extract heat from the ground (geothermal energy) as
well as rivers, lakes and ground water (hydrothermal energy).
This renewable heat energy is then transferred to the refrigerant
system to raise the temperature of the outflow water and thus
effectively pre-heat it. This reduces the energy required to
provide heating and the transferred heat is often enough to
maintain domestic hot water tanks at the correct temperature.
This remarkable technology will now be applied to small
capacity units as we focus on total climate control in all its forms.
AEROTHERMAL HEAT PUMP HYDROTHERMAL HEAT PUMP GEOTHERMAL HEAT PUMP
State-of-the-art control systems
Our systems are all connected to advanced control systems that give
room-by-room settings as well as integrated building control to
ensure that the customer can maximise and optimise the use of
their Daikin system as a total solution for their building: one that
gives perfect climate control, reduced costs and reduced
environmental impact.
New refrigerants
The regulation on ozone depleting substances and the fluorinated
gas directive provide some special challenges. The phasing out of
R-22 refrigerants and the concerns over the environmental impact
of other refrigerants has led to pressure being brought to bear for
the development of non-fluorinated, low GWP (global warming
potential) and natural refrigerant gases. This in turn means that
refrigerant systems will have to be re-designed and re-engineered
– our engineers are already hard at work developing an alternative
product line and trying innovative modifications to our current lines.
As always, we are the innovation leaders!