AquaFREE system - Airconwarehouse.com

Benefits of AquaFREE.
Main features
of the H(V)RNE units:
1.6. Main features of the H(V)RNE outdoor units
The RAS-H(V)RNE outdoor units are characterized by their silence and their efficiency; they
were designed with very high technology.
1.6.1. High efficiency cooling circuit
For the refrigerant cycle, HITACHI has developed a new and more efficient heat
exchanger.
New aluminum fins for the heat exchanger
The new smaller flow resistance heat exchanger using new aluminium fins reduces
resistance airflow and pressure loss in pipes.
Air flow resistance decreased by
20%.
The optimised slit shape minimises
noise by reducing air intake
resistance.
Pressure drop in heat exchanger
pipe has been decreased.
Bigger heat exchanger
The new bigger heat exchanger increases efficiency. A lower flow resistance provides
more silent operation.
1.6.2. Highly efficient scroll compressor
Hitachi’s exclusive Scroll Compressor
The strong points of the new Hitachi high pressure scroll compressor
− Improvement of the compressor shaft’s rotation system, which has two bearings
located on the ends of the shaft which allow for greater system reliability.
− New scroll coil which permits to optimize the overlap between the two scrolls, thus
greatly reducing intake loss by leakage.
− Oil return circuit design largely reduces heat loss.
− Improved lubrication system to provide accurate oiling for the compressor.
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TCGB0042 rev.0 - 01/2007