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  1. Hitachi
  2. Ranges
  3. Air Conditioning
  4. airHome 400

– airHome 400

Home AC that’s easy to use, makes daily life more convenient, and comes with integrated self-maintenance technology that help to improves the long-term performance of the unit. airHome is the AC for people who don’t want to think about AC.
airHome 400_header
airHome 400_header
airHome 400_header
airHome 400_header
airHome 400_header
airHome 400_header
Home AC that’s easy to use, makes daily life more convenient, and comes with integrated self-maintenance technology that help to improves the long-term performance of the unit. airHome is the AC for people who don’t want to think about AC.
airHome 400_0

– Adjusts temperature as you arrive home or leave the house

Use the airCloud Home smartphone app to set up location awareness and temperature profiles, for example, detecting when you are on your way home and automatically adjusting the temperature ready for your arrival.

With the airCloud Home app you can also connect to your smart speaker (compatible with Amazon Echo and Google Home), use weekly schedule and timer functions and see how much power has been consumed with the integrated Energy Cost Estimator.
airHome 400_1

– 3X better at maintaining the performance of your AC

Over time dust and dirt can build up in your AC reducing the amount of air that can flow through it and making it less powerful over time.

Hitachi FrostWash technology helps to maintain the performance of your AC for years to come by freezing dust and dirt, melting it and washing it away. Our tests show that systems with FrostWash are 3X better at maintaining air flow performance than those without this technology[1].

airHome 400_2

– Stop the causes of AC odors

Whenever the unit is switched off, the mold guard function automatically blows air through internal components to prevent the build-up of mold – the primary cause of those nasty odors.
airHome 400_3

– Japanese quality, built to last

Heat and freezing shock, extreme humidity, torrential rain, voltage surges, lightning strikes, impacts and more… every air conditioner we sell has been tested to the extreme. In addition, our unique SafeGuard System combines electrical and mechanical systems to protect the outdoor unit from extreme weather and voltage fluctuation. These protections include a 3-minute delay circuit to prevent damaged caused by multiple fast re-starts in the event of power cuts, an ODU valve cover to channel water and condensation safely away from the outdoor unit, anti-rust paint and heat fins, and a metal fireproof electrical enclosure to protect electronics inside the outdoor unit.
airHome 400_4

– Helps to purify your indoor air

Combining 3 different air purification technologies for enhanced effectiveness against pollutants including viruses and bacteria and even odors. The pre-filter, air purification filter and heat exchange cleaner work together with up to 99.9% effectiveness on viruses including SARS-CoV-2[2], up to 99.0% effectiveness on bacteria[3]
airHome 400_5

– Vector DC Inverter technology

Our Cascade Vector DC Inverter System is equipped with a microchip to control the speed of the compressor. A split rotor with displaced electrical poles enables electromagnetic noise suppression and optimizes low-speed energy-efficiency.

With inverter technology, an air conditioner cools with maximum capacity at start-up, then automatically slows down and operates at a minimal capacity to maintain room temperature at a comfortable level. Non-inverter models can only operate with simple on-off controls. Trying to maintain the desired temperature by repeatedly switching power on and off consumes much more electricity and results in bigger temperature fluctuations.
airHome 400_6_0
airHome 400_6_1
airHome 400_6_2
airHome 400_6_3
airHome 400_6_4
airHome 400_6_5
airHome 400_6_6
1/7
Notes

[1] Two identical units were tested for comparison; with and without FrostWash. Test chamber simulated approx. 2 years of dust and oil build up which may be experienced in a typical home environment. Airflow performance was tested before and after being in the chamber. Unit without FrostWash experienced an 18% drop in airflow performance. Unit with FrostWash experienced only 6% performance drop. Tested at Johnson Controls-Hitachi Tochigi factory, Japan Nov/Dec 2021.
[2] ViroSense Z1 filter shows 99.9% of effectiveness against SARS-CoV-2 NIID isolated variant: JPN/TY/WK-521 and 99.0% effectiveness against Influenza A Virus (H3N2) tested at Japan Textile Product Quality and Technology Center using ISO18184:2019 method. FrostWash technology also showed 99.0% reduction of virus particles on the heat exchanger tested at Kitasato Research Center of Environmental Science
[3] Claim refers to the effect of ViroSense Z1-filter (optional on some models) which showed 99.0% reduction of Staphylococcus aureus NBRC12732 and Escherichia coli NBRC3301 bacteria particles under lab conditions tested at Nissenken Quality Evaluation Center Japan, and also FrostWash technology which showed 99.0% reduction of bacteria on the heat exchanger tested at Kitasato Research Center of Environmental Science Japan

 

– Other Benefits

airHome 400_benefits
Silent Mode
Specially curved fan blades reduce the buffeting noise of them cutting through the air at slower speeds.
airHome 400_benefits
0.5°C temperature control
Set temperature in increments of 0.5°C
airHome 400_benefits
Multiple Timers
6x On/Off time and temperature settings for each day of the week (using airCloud Home). Set a specific time interval for power off, up to 12 hours
airHome 400_benefits
Save your favourite settings
Quickly activate your most-used combination of mode, temperature and fan speed with a dedicated button on the remote control

– Indoor / Outdoor Unit

Indoor / Outdoor Unit

RAK-DJ18PHAE / RAC-DJ18PHAE RAK-DJ25PHAE / RAC-DJ25PHAE RAK-DJ35PHAE / RAC-DJ35PHAE RAK-DJ50PHAE / RAC-DJ50PHAE
Nominal Capacity (Min. - Max.) Cooling kW
Heating kW
Energy efficiency SEER
SCOP
Energy Rating (Energy class) Cooling
Heating
Heating function For winter heating
airCloud Home App for remote control & scheduling
FrostWash Maintains airflow performance
Mold Guard Function Prevents build-up of mold
SleepSense Improves sleep quality
Smart Eco Automated power saving
Nano Titanium Pre-Filter Filters large particles
Air Purification Filter ViroSense Z1 filter
FrostWash automatic self-cleaning
Ionizer AQtiv-Ion
Power Supply V / Phase / Hz
Nominal Cooling Power Input (Min. - Max.) Watts
Nominal Heating Power Input (Min. - Max.) Watts
Starting Current (cooling/heating) Amps
Running Current (cooling/heating) Amps
Operation Range Cooling ºC
Heating ºC
Refrigerant Type
Current Amount kg
Compressor Type
Diameter of Pipes Liquid Inch
mm
Gas Inch
mm
Maximum Pipe Length m
Maximum Piping Elevation m
Dehumidification l / h
Indoor Unit Height mm
Width mm
Depth mm
Weight kg
Air Flow (Max.) m3 / h
Sound Power dB(A)
Sound Pressure dB(A)
Outdoor Unit Height mm
Width mm
Depth mm
Weight kg
Sound Power dB(A)
Sound Pressure dB(A)
2.00 (0.90 - 2.50)
2.50 (0.90 - 3.20)
7.5
4.6
A++
A++
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
0.58(0.25-1.01)
0.595(0.25-0.97)
3.22/3.51
1.09-4.39/1.09-4.22
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
6.35
3/8"
9.52
20
10
1.2
280
780
222
7.7
545
51
20/24/30/34/38
530
660
278
23
59
46
2.50 (0.90 - 3.10)
3.40 (0.90- 4.40)
7.5
4.6
A++
A++
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
0.70 (0.25 - 1.29)
0.85 (0.25 - 1.25)
3.89/4.53
1.09-5.61/1.09-5.43
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
6.35
3/8"
9.52
20
10
1.4
280
780
222
7.7
620
54
20/25/31/36/41
530
660
278
23
61
48
3.50 (0.90- 4.00)
4.20 (0.90- 5.00)
7.5
4.6
A++
A++
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
1.084 (0.25 - 1.46)
1.050(0.25 - 1.70)
5.38/5.30
1.09-6.35/1.09-7.39
-10 ~ 46
-15 ~ 21
R32
0.72
Rotary
1/4"
6.35
3/8"
9.52
20
10
1.6
280
780
222
7.7
653
57
20/28/36/40/44
530
660
278
24.4
62
49
5.00 (1.90- 5.20)
6.00 (2.20- 7.30)
7
4.5
A++
A+
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
1.548(0.50 - 2.10)
1.617(0.50 - 2.75)
7.11/7.42
2.17-9.13/2.17-11.96
-10 ~ 46
-15 ~ 21
R32
0.93
2 Cylinder Rotary
1/4"
6.35
3/8"
9.52
20
10
2
280
780
222
8.4
663
60
25/31/37/42/47
600
792
299
39.1
64
51
Open Table
Download PDF
Download PDF

– Brochures and catalogues: airHome 400

Catalogues, brochures and other documentation. If you need any more information, please get in touch.
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– How can we help you?
Contact us
– Technical Documentation
Find product Operation and Installation manuals and other documentation.
Visit the website

– Indoor / Outdoor Unit

Indoor / Outdoor Unit

RAK-DJ18PHAE / RAC-DJ18PHAE RAK-DJ25PHAE / RAC-DJ25PHAE RAK-DJ35PHAE / RAC-DJ35PHAE RAK-DJ50PHAE / RAC-DJ50PHAE
Nominal Capacity (Min. - Max.) Cooling kW
Heating kW
Energy efficiency SEER
SCOP
Energy Rating (Energy class) Cooling
Heating
Heating function For winter heating
airCloud Home App for remote control & scheduling
FrostWash Maintains airflow performance
Mold Guard Function Prevents build-up of mold
SleepSense Improves sleep quality
Smart Eco Automated power saving
Nano Titanium Pre-Filter Filters large particles
Air Purification Filter ViroSense Z1 filter
FrostWash automatic self-cleaning
Ionizer AQtiv-Ion
Power Supply V / Phase / Hz
Nominal Cooling Power Input (Min. - Max.) Watts
Nominal Heating Power Input (Min. - Max.) Watts
Starting Current (cooling/heating) Amps
Running Current (cooling/heating) Amps
Operation Range Cooling ºC
Heating ºC
Refrigerant Type
Current Amount kg
Compressor Type
Diameter of Pipes Liquid Inch
mm
Gas Inch
mm
Maximum Pipe Length m
Maximum Piping Elevation m
Dehumidification l / h
Indoor Unit Height mm
Width mm
Depth mm
Weight kg
Air Flow (Max.) m3 / h
Sound Power dB(A)
Sound Pressure dB(A)
Outdoor Unit Height mm
Width mm
Depth mm
Weight kg
Sound Power dB(A)
Sound Pressure dB(A)
2.00 (0.90 - 2.50)
2.50 (0.90 - 3.20)
7.5
4.6
A++
A++
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
0.58(0.25-1.01)
0.595(0.25-0.97)
3.22/3.51
1.09-4.39/1.09-4.22
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
6.35
3/8"
9.52
20
10
1.2
280
780
222
7.7
545
51
20/24/30/34/38
530
660
278
23
59
46
2.50 (0.90 - 3.10)
3.40 (0.90- 4.40)
7.5
4.6
A++
A++
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
0.70 (0.25 - 1.29)
0.85 (0.25 - 1.25)
3.89/4.53
1.09-5.61/1.09-5.43
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
6.35
3/8"
9.52
20
10
1.4
280
780
222
7.7
620
54
20/25/31/36/41
530
660
278
23
61
48
3.50 (0.90- 4.00)
4.20 (0.90- 5.00)
7.5
4.6
A++
A++
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
1.084 (0.25 - 1.46)
1.050(0.25 - 1.70)
5.38/5.30
1.09-6.35/1.09-7.39
-10 ~ 46
-15 ~ 21
R32
0.72
Rotary
1/4"
6.35
3/8"
9.52
20
10
1.6
280
780
222
7.7
653
57
20/28/36/40/44
530
660
278
24.4
62
49
5.00 (1.90- 5.20)
6.00 (2.20- 7.30)
7
4.5
A++
A+
Yes
Yes
Yes
Yes
Yes
Yes
220-240V / 1Ph / 50Hz
1.548(0.50 - 2.10)
1.617(0.50 - 2.75)
7.11/7.42
2.17-9.13/2.17-11.96
-10 ~ 46
-15 ~ 21
R32
0.93
2 Cylinder Rotary
1/4"
6.35
3/8"
9.52
20
10
2
280
780
222
8.4
663
60
25/31/37/42/47
600
792
299
39.1
64
51
Open Table
Download PDF
Download PDF
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