ED34-862 Features
General Information 13
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6. Features
6.1 Technologies
Daikin’s constant efforts have been devoted towards using the latest and most revolutionary technologies in the
development of the VRVIII system for large-sized buildings. The system offers larger outdoor capacities, greater energy
savings, easier installation, longer actual and total piping, and more.
VRVIII —Created to respond to the needs
of large-sized buildings
The new heat exchanger contributes to a high COP
because of an increase from 7% to 10% of the effective
length as well as an optimised e-Pass heat exchanger.
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A higher external static pressure has been achieved—from 58. 8 Pa to 78.4 Pa—thanks to
reduced internal pressure loss, use of the new fans and the new grilles.
The area of these new fan blades has been increased and optimised for each casing. This greatly reduces pressure loss, resulting in a
higher external static pressure.
The three-bladed fan on the 10 HP unit, with a diameter of
700 mm, has been redesigned to include four blades and now
has a diameter of 680 mm. Blade area has been increased by
25%.
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Newly improved fans and grilles
Heat exchanger
New aero spiral fan and aero asymmetrical fan
Aero smooth grille
New aero asymmetrical fan
In the 14 and 16 HP unit, a single fan with a diameter of 700 mm
has been split into two fans with diameters of 540 mm each.
Blade area has been increased by 20% to increase airflow.
New aero spiral fan (Powerful Dual DC fan)
VRVII
The three-dimensional, integrated, soft woven steel grilles are
covered with a plastic coating that protects them from rotating
elements and the possibility of fire
damage.
Blade area
increased by
25%!
VRVII
Blade area
increased by
20%!
Diameter of 700 mmDiameter of 680 mmDiameter of 700 mm
Diameter of 540 mm x 2
Perspective view
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