Hitachi
RAM-G55N3HAE airHome Multi Pro
The Hitachi RAM-G55N3HAE airHome Multi Pro is a 5.5 kW R32 tri-split outdoor unit with class-leading A+++ cooling efficiency. One condenser drives up to three indoor heads, making it a tidy solution for a three-room flat or a home office plus two bedrooms.
€1,500
List priceOutdoor unit only; indoor heads (up to 3) selected and priced separately
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Units like this are usually quoted and fitted by a specialist installer. Compare it against models you can buy today.
Sizing this system
This is a whole-home system: its rated cooling is shared across several indoor units or distributed through ductwork, so there is no single room it does or does not fit. An installer sizes each zone against that room (a Manual J calculation), which is why we do not print a room verdict here.
Installation cost
$5,000-15,000 fully installed depending on the number of zones (roughly $3,000-8,000+ for the multi-zone install on top of the equipment). A 2-room (2x1) setup sits near the lower end, a 4-5 room whole-home system near the top. The unit price you see here is hardware only; installation is the larger, separate cost.
A typical range for this system type, for comparison only, not a quote for this unit. The actual price depends on the line-set run, electrical work and access.
At a glance
Best for energy-conscious buyers cooling two or three rooms who want a single high-efficiency outdoor unit.
Performance
- Cooling capacity
- 5.5 kW · 18,000 BTU
- Heating capacity
- 6.8 kW
- Total coverage
- 40–90 m²
- SEER (cooling)
- 8.5
- SCOP (heating)
- 4.6
- Energy class (cooling)
- A+++
- Energy class (heating)
- A++
- Annual energy (cooling)
- Not published
Noise, size & features
- Model number
- RAM-G55N3HAE
- Indoor noise
- Not published
- Outdoor noise
- 61 dB(A)
- Indoor unit
- Not published
- Outdoor unit
- 850 x 750 x 298 mm
- Refrigerant
- R32
- Wi-Fi / app
- Yes
- Outdoor unit needed
- Yes
What is good
- Top-tier A+++ cooling efficiency with a high SEER of 8.5
- Connects up to three indoor units of mixed types from one condenser
- Built-in Wi-Fi control via the Hitachi airCloud app
- R32 refrigerant and twin-rotary inverter compressor for quiet, steady output
What to watch
- Outdoor unit at 61 dB is on the louder side at full load
- Price excludes indoor units, raising total project cost
- Professional F-Gas install and commissioning required
Installation & the rules that apply
This is a multi-split. Same F-gas certified-installer requirement and sub-750 GWP refrigerant rule as a single split, applied across a bigger system. Because it touches multiple rooms and routes pipes through the structure, it more often triggers planning or prior-declaration steps, freeholder, landlord or condominium and shared-wall consent, and neighbour distance and noise rules. Heritage and historic-centre restrictions apply to the outdoor unit just as for a single split, but the single shared condenser is often easier to get approved than several separate units.
Certified installer
R32
Common questions about the Hitachi RAM-G55N3HAE airHome Multi Pro
- How energy-efficient is the Hitachi RAM-G55N3HAE airHome Multi Pro?
- Its efficiency rating is SEER 8.5.
- Do I need a professional to install the Hitachi RAM-G55N3HAE airHome Multi Pro?
- Yes. As a multi-split it needs a certified installer. Usually needs permission.
- Does the Hitachi RAM-G55N3HAE airHome Multi Pro heat as well as cool?
- Yes. It also heats, rated 6.8 kW of heating output.
More multi-split units around 5.5 kW
Mitsubishi Electric
MXZ-2F53VF5 (2-room multi-split outdoor unit)
The Mitsubishi Electric MXZ-2F53VF5 is a 5.3 kW two-zone multi-split outdoor unit (A+++ cooling) that runs two indoor units quietly from a single compact condenser.
€1,279
Hardware price
