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Hitachi Air Conditioning Shirokuma And S-Series Wall Mounted RAK A+++

Hitachi Air Conditioning S-Series Wall Mounted RAK-35PSB Inverter Heat Pump 3.5Kw/12000Btu A+++ 240V~50Hz

Hitachi Air Conditioning S-Series Wall Mounted RAK-35PSB Inverter Heat Pump 3.5Kw/12000Btu A+++ 240V~50Hz

£1,195.95 £996.63 (ex. VAT)
Stock Status: In Stock

A++ Energy Rated Product 

The Hitachi air conditioning RAK S-Series wall mounted range are highly economical and environmentally friendly. Using the latest compressor and inverter technology keeps power consumption to a minimal, but at the same time providing powerful cooling and heating. All Hitachi’s air conditioning units offer high seasonal efficiencies, with models in the S-Series range achieving high seasonal performance SCOP A++ 4.6 and SEER A+++ 7.41. ​​The compact dimensions of the S-Series model (295x798x258) are common across the entire range and allow for easier integration.

Enhanced inverter performance and system performance are achieved by the addition of a ‘Direct Current’ drive compressor, resulting in up to 10% more efficient than standard 'AC' (Alternating Current) Systems. The variable speed compressor (inverter) enables the system to rapidly reach the desired room temperature setting. Once the desired room temperature has been achieved the compressor rotation peed is reduced, saving up to 30% in energy usage (when compared to standard fixed speed systems).
The S-Series indoor unit delivers air quickly to every corner of the room and the powerful, sweeping air flow eliminates dead zones and improves the cooling and heating effect. The trapezoidal fan blades cut the air diagonally to minimise air resistance and the conical blade fan ensures a high airflow. With this diagonal air blow, less friction is caused, which reduces noise and improves efficiency. The fan diameter has been increased from the conventional 90mm to 100mm. Includes deodorising and anti-bacterial Wasabi filters as standard and "Stainless clean", the components in the indoor unit (including filter) are stainless steel  for greater air purity. A energy saving sensor adjusts the unit operation as room occupancy changes to achieve extra energy savings.
Volt Free control of the air conditioning system option, used to turn the unit on/off remotely after receiving a signal such as key-card, door or window switch, specifically useful in hotel rooms to prevent unnecessary use. Accessory SPX WDC3 is required.

Product Key Feature's:

  • SCOP A++ 4.6 and SEER A+++ 7.41 
  • Infra-red controller
  • Slim construction 258mm
  • Pipe runs up to  15 meters
  • Low noise 22dBA on low
  • Cold draft prevention on heat pump start up
  • Fault diagnosis
  • Auto re-start after power interruption
  • PRE-CHARGED WITH REFRIGERANT for up to 20 metres pipe length
  • Light weight noise absorbing outdoor unit
  • Volt Free control
  • 5 Years Warranty
  • 24-hour, 7-day Infra-red remote controller
  • Leave home function - set temperature at 10ºC automatically when no one is at home for up to  99 days

Technical Specifications:


Nominal Cooling Capacity (min-max) kW 3.5 (0.5-4.1)
Sensible Cooling Capacity kW 2.7
UK Cooling Capacity (sensible) kW 4.3 (2.8)
Nominal Heating Capacity  (min-max) kW 4.0 (0.6-6.6)
Nominal Cooling Power Input (min-max) kW 0.805 (0.070-1.350)
Nominal Heating Power Input (min-max) kW 0.79 (0.06-1.49)
Seasonal Efficiency  SEER 8.5
Energy Efficiency Class A+++
Annual Energy Consumption kWh/yr 144
Seasonal Efficiency (Average Climate) SCOP 4.7
Energy Efficiency Class A++
Annual Energy Consumption kWh/yr 896
Nominal Load Efficiency EER/COP 4.35/5.06
Energy Class (cool/heat) A/A
Noise Level Cooling (Sound Pressure) (SL/L/M/H) dB(A) 23/28/34/44
Noise Level Heating (Sound Pressure) (SL/L/M/H) dB(A) 23./30/34/44
Noise Level (Sound Power) dB(A) 58
Air Flow Cooling Mode (SL/L/M/H) m³/h 270/320/420/520
Air Flow Heating Mode (SL/L/M/H) m³/h 270/410/520/610
Dehumidification l/hr 1.6
Dimensions HxWxD mm 295x798x258
Weight kg 12.0
Power Supply 230V / 1Ph / 50Hz
Drain Diameter (ext) Ø16mm
Remote Control Standard Infra Red (RAR-5W1)
Optional Wired (SPX-RCDB)
Outdoor Unit RAC-35WSB
Noise Level Cooling (Sound Pressure) Night Mode dB(A) 49
Noise Level Heating (Sound Pressure) Night Mode dB(A) 49
Noise Level (Sound Power) dB(A) 63
Air Flow (Cooling/Heating) m³/h 1920/1620
Dimensions HxWxD mm 600x792x299
Weight kg 40
Piping Diameter (Liquid/Gas) Inch 1/4 - 1/2
mm 6.35 - 12.70
Minimum Pipe Length m 3.0
Maximum Pipe Length m 20
Maximum Height Difference m 10
Current Quantity of Refrigerant kg 1.35
Chargeless/Additional Refrigerant m / g/m 20 / -
Power Supply 230V / 1Ph / 50Hz
Recommended Fuze Size A 25
Starting Current A 4.67/4.88
Running Current (Cooling/Heating) A 0.30-5.87/0.28-10.65
Interconnecting Cables No. 3+E
Working Range (Cooling/Heating) °C -10-43 / -20-21
Refrigerant / GWP R410A / 1975
Compressor Type Scroll

PDF Data:

These air conditioning units must be installed by an F-Gas qualified engineer.  We can install the unit for you using our F-Gas Certified Engineers. Please note if you do not select our installation service  we will not ship the unit until we have obtained evidence from you that you will have the unit installed by an F-Gas qualified engineer. This is a requirement of the Article 11 (5) EC/517/2014 on fluorinated greenhouse gases and The Fluorinated Greenhouse Gases Regulations 2015.

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