Hitachi
Ranges
Room AC
airHome 400

– airHome 400

Wall Mounted Inverter Heat Pump AC

– airHome 400

Wall Mounted Inverter Heat Pump AC

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.

– Adjusts temperature as you arrive home or leave the house

Use the airCloud Go 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 Go 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.

– 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].

– 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.

– 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.

– 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]

– 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.

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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

Silent Mode

Specially curved fan blades reduce the buffeting noise of them cutting through the air at slower speeds.

0.5°C temperature control

Set temperature in increments of 0.5°C

Multiple Timers

6x On/Off time and temperature settings for each day of the week (using airCloud Go). Set a specific time interval for power off, up to 12 hours

Save your favourite settings

Quickly activate your most-used combination of mode, temperature and fan speed with a dedicated button on the remote control

– Technical specifications

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
Nominal Capacity (Min. - Max.)	Heating	kW

Energy efficiency	SEER
Energy efficiency	SCOP

Energy Rating (Energy class)	Cooling
Energy Rating (Energy class)	Heating

Inverter

For energy efficiency

Heating function

For winter heating

airCloud Go

App for remote control & scheduling

FrostWash

Maintains airflow performance

Mold Guard Function

Prevents build-up of mold

Smart Eco

Automated power saving

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
Operation Range	Heating	ºC

Refrigerant	Type
Refrigerant	Current Amount	kg

Compressor Type

Diameter of Pipes	Liquid	Inch
Diameter of Pipes	Gas	Inch

Maximum Pipe Length

Maximum Piping Elevation

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
Yes
Yes

220-240V / 1Ph / 50Hz
580 (250 - 1010)
595 (250 - 970)
3.22/3.51
1.09-4.39/1.09-4.22
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
3/8"
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
Yes
Yes

220-240V / 1Ph / 50Hz
700 (250 - 1290)
850 (250 - 1250)
3.89/4.53
1.09-5.61/1.09-5.43
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
3/8"
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
Yes
Yes

220-240V / 1Ph / 50Hz
1084 (250 - 1460)
1050 (250 - 1700)
5.38/5.30
1.09-6.35/1.09-7.39
-10 ~ 46
-15 ~ 21
R32
0.72
Rotary
1/4"
3/8"
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
Yes
Yes

220-240V / 1Ph / 50Hz
1548 (500 - 2100)
1617 (500 - 2750)
7.11/7.42
2.17-9.13/2.17-11.96
-10 ~ 46
-15 ~ 21
R32
0.93
2 Cylinder Rotary
1/4"
3/8"
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

– Technical specifications

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
Nominal Capacity (Min. - Max.)	Heating	kW

Energy efficiency	SEER
Energy efficiency	SCOP

Energy Rating (Energy class)	Cooling
Energy Rating (Energy class)	Heating

Inverter

For energy efficiency

Heating function

For winter heating

airCloud Go

App for remote control & scheduling

FrostWash

Maintains airflow performance

Mold Guard Function

Prevents build-up of mold

Smart Eco

Automated power saving

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
Operation Range	Heating	ºC

Refrigerant	Type
Refrigerant	Current Amount	kg

Compressor Type

Diameter of Pipes	Liquid	Inch
Diameter of Pipes	Gas	Inch

Maximum Pipe Length

Maximum Piping Elevation

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
Yes
Yes

220-240V / 1Ph / 50Hz
580 (250 - 1010)
595 (250 - 970)
3.22/3.51
1.09-4.39/1.09-4.22
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
3/8"
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
Yes
Yes

220-240V / 1Ph / 50Hz
700 (250 - 1290)
850 (250 - 1250)
3.89/4.53
1.09-5.61/1.09-5.43
-10 ~ 46
-15 ~ 21
R32
0.58
Rotary
1/4"
3/8"
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
Yes
Yes

220-240V / 1Ph / 50Hz
1084 (250 - 1460)
1050 (250 - 1700)
5.38/5.30
1.09-6.35/1.09-7.39
-10 ~ 46
-15 ~ 21
R32
0.72
Rotary
1/4"
3/8"
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
Yes
Yes

220-240V / 1Ph / 50Hz
1548 (500 - 2100)
1617 (500 - 2750)
7.11/7.42
2.17-9.13/2.17-11.96
-10 ~ 46
-15 ~ 21
R32
0.93
2 Cylinder Rotary
1/4"
3/8"
20
10
2
280
780
222
8.4
663
60
25/31/37/42/47
600
792
299
39.1
64
51