Daikin RXQ40PAHY1 [4/36] Vrviii created to respond to the needs of large sized buildings

Cutting-Edge Technologies

65

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

This 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.

A higher external static pressure has been achieved–from 58. 8 Pa to 78.4 Pa–thanks to

reduced internal pressure loss, use of self developed fans and grilles.

The area of the 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

4

By performing super cooling before the expansion

process, the volume of refrigerant that needs to be

circulated to the indoor units can be reduced without

lowering the evaporation temperature. This permits the

use of narrower piping.

5

Realises a compact casing by stacking the Inverter and

By adoption of the Sine

Wave, which smoothes

the rotation of the motor,

operation efficiency is

improved sharply.

(

)

Approx.

increase

Approx.

increase