Hitachi RAF-35RPA RAF35RPA User Manual

 SYSTEM DESCRIPTION

1-5 

 

 

 

 

Vector control and high efficient motor achieve  

energy saving and high power operation. 
Hitachi uses vector control as an inverter operation 
system. This enables gradual control of motor rotation 
rate and electric current, so that the compressor 
performs highly stable operation in all rotation area and 
high power in high rotation area.  

In addition, Hitachi compressor applies high 

efficient motor. The compressor values efficiency in low 
rotation area where operation frequency is high.  
By these mechanisms, energy saving and high power 
operation have been achieved. 
 

 

Hitachi scroll compressor achieves both energy 

saving and high power operation at the same time. 

Whirlpool scroll shape has been improved to reduce 

efficiency loss during operation. Since two whirlpool 
wings operate induct, compress and exhaust process 
smoothly, the scroll is both powerful and efficient.  

The scroll shape improvement also contributes to 

decrease refrigerant leakage loss.  

 

 

 

  Heating Capacity 

Our new premium series can keep heating 

capacity up to outside temperature of -15

. 

 

  Improvement of Unit Structure  

Increase the area of outdoor heat exchanger to 

increase volume of air flow. Our new premium 
series’ outdoor heat exchanger area is larger by 
more than 1.5 times compared to our previous 
model. This structure improvement contributes to 
decrease de-frost operation time and increases 
continuous heating operation time. 

 

 

  Detect Your Movement Level 

Two compound lenses watch the movement 

level of people in the room to operate under less 
electricity consumption mode. The degree of 
detection is 140°. 

 

  When heating, if activity level is high, sensor 

detects the condition and automatically shifts 
room temperature lower to operate under less 
energy consumption mode. 

  When cooling, if activity level is low, sensor 

detects the condition and automatically shifts 
room temperature higher to operate under less 
electricity consumption mode. 

 

 

 

  Detect Your Location 

Two compound lenses recognize the space of 

the room dividing into 3 sections to locate position 
of people in the room. Then, either direct airflow or 
in-direct airflow mode can be selected for your 
comfort. 

 

 

 

 

 

 

Two Compound Lenses Watch Movement 

Two Compound Lenses Watch 3 Areas 

Direct Airflow or In-direct Airflow can be selected