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AIRSTAGE™ VRF System (Air Conditioners)

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High Efficiency Operation (V Series)

High efficiency operation system

Effective use of the heat exchanger of other outdoor units

This system takes advantage of the features of the multi type outdoor unit

The heat exchanger is operated at maximum efficiency by effectively using the heat exchanger of each outdoor unit reciprocally.

Example

The larger heat exchanger than the capacity of a compressor is used in each outdoor unit. (V series)

Conventional method

High Efficiency Outdoor unit

Large propeller fan

A newly designed fan is adopted for achieving higher performance and reducing the noise level.

Sine-wave DC Inverter Control

By adopting Sine-Wave DC Inverter Control for smoothing the motor running, energy saving and high efficiency operation are realized.

DC inverter + Scroll compressor

By combining the DC inverter controlled scroll compressor with the constant speed scroll compressor, an operating system of energy saving and high efficiency is realized.

Equipped with DC inverter scroll compressor

High efficiency

All key features of the outdoor unit result in a higher level of COP

We have achieved cooling COP is 3.2 and Heating COP is 3.7.

  • The data refers to a 10HP outdoor unit.
  • "COP" is the coefficient of performance
    [= capacity (kW) ・input power (kW)].
*
COP values are base on our own testing method.

High efficiency refrigerant R410A

Improvement of operation efficiency realized by adoption of a new refrigerant

Mark of Refrigerant R410A

Refrigerant characteristics (Comparison of R22 / R407C / R410A)

Refrigerant R22 R407C R410A
Composition element Single
component		 Blended
( Zeotrope )		 Blended
( Near azeotrope )
Working Pressure
(As compared to R22)		 - Similar Higher
( 1.6 times )
Capacity
(As compared to R22)		 - Similar Higher
( 1.5 times )
Pressure Loss
(As compared to R22)		 - Similar Lower
( 0.6 times )
Total Efficiency
(As compared to R22)		 - Similar Higher
( 1.05 times )

 

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