Hitachi airHome Multi Triple Zone Wall-Mounted Heat Pump | 24,000 BTU Compressor

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• WiFi: Optional
• Warranty (Compressor - Parts - Labor): 10-10-0 years
• Additional Warranty (10-10-10): Possible
• Voltage: 220 V
• Sound Pressure Level (Outdoor): 54.0 dB(A)

4-season comfort, total flexibility and exemplary performance for Montreal and the surrounding area

At AirGreen , we install the HITACHI airHome Multi TripleZone wall-mounted heat pump ( 24,000 BTU compressor – RAM-G24N3HAA ) for homeowners who want an HVAC solution capable of precisely cooling and heating 3 zones , while keeping their energy bill under control. This system stands out for its modularity (choice of heads from 7,000 to 24,000 BTU), its energy efficiency , and innovations that protect indoor air quality. For homes and condos in Montreal , Laval , Longueuil , on the North Shore and the South Shore , it is a reliable ally – summer and winter.

Why choose the airHome Multi 24,000 BTU for a TripleZone project

1) A custom configuration, piece by piece

The RAM-G24N3HAA outdoor unit allows 3 indoor connections and accepts several types of units: airHome 400 or 650 wall-mounted , mini-cassette , Floor console , or ducted . You can thus create a trio perfectly adapted to the reality of your home (open area, bedrooms, office). Common combinations on the wall side include: 7 + 7 + 7 , 7 + 7 + 9 , 7 + 7 + 12 , 7 + 9 + 9 , 7 + 9 + 12 , 7 + 12 + 12 , 9 + 9 + 9 , 9 + 9 + 12 , 9 + 12 + 12 .

Key takeaway : Each zone has its own setpoint , fan speed , and dedicated modes (cooling, heating, fan, or dry in summer). Some heads can remain off while others operate, reducing consumption where it's not needed.

2) Performance calibrated for our climate

The system heats down to –20°C and boasts, for this 24k chassis, benchmark efficiency values: SEER2 up to 22.0 and HSPF2 up to 9.5 (Region 4) / 7.8 (Region 5) , using R-32 refrigerant . Outdoors, the sound pressure level is approximately 54 dB(A) . In cooling, the total range goes up to 28,000 BTU depending on the combination, and the range's data sheet indicates very high performance ceilings for multi (up to SEER2 23.0 and HSPF2 7.85 depending on the model).

3) Indoor air quality that is truly taken seriously

airHome indoor units integrate a comprehensive approach:

• FrostWash : A frost/thaw cycle that sanitizes the exchanger and removes contaminants, helping to maintain airflow and limit odors.

• Mold Guard : Automatic drying of internal components after cool/dry mode to limit mold .

• PM2.5 & ViroSense S filters : target fine particles , VOCs , bacteria and mold for healthier air.

4) Smart and scalable functions

• Presence sensor (depending on model, e.g. airHome 650): switches to Smart-Eco or Auto-Off when the room is unoccupied.

• R-32 leak detection : LED alert and audible signal (depending on unit, or via optional receiver).

• airCloud Go remote control ( SPX-WFA01 adapter, optional): programming, consumption monitoring, remote control.

• Wall control compatibility and interface possibilities with third-party thermostat (5-wire wired).

What we check at AirGreen before recommending your top trio

1. Thermal profile of each zone
   In Montreal (brick houses, triplexes, condos), the charges vary according to the insulation , the orientation , the glass surface and the airtightness . For a large open living room-kitchen area facing west, we often recommend 12,000 BTU or 18,000 BTU (e.g. wall-mounted RAK-DJ12RHAA or RAK-DJ18RHAA ). For a closed bedroom, 7,000 to 9,000 BTU are generally sufficient.

2. Noise and comfort
   Depending on the size and range, airHome wall units offer noise levels down to 27–29 dB(A) at their lowest – ideal for bedrooms/offices. The mini-cassettes (22 × 22 in) are excellent for uniform 4-way airflow ; the Floor consoles are ideal as a replacement for convectors or for low-front integration.

3. Piping route
   The RAM-G24N3HAA allows up to 200 ft of total length, 66 ft of elevation, 82 ft maximum between units, and 16 ft minimum. These margins are essential for discreetly placing the compressor (yard, roof, side driveway) and optimizing installation in buildings on the South Shore and the North Shore .

4. Scalability and maintenance
   The anti-corrosion faceplate, blue fins , and PCBA protection enhance durability. Internal cleaning and drying features facilitate annual HVAC maintenance and help maintain performance season after season.

Recent case studies by AirGreen

Condo in Griffintown (Montreal) – 7 + 7 + 12

Objective: discreet air conditioning and supplemental heating. We installed two 7,000 BTU wall units in the bedrooms and 12,000 BTU units in the open area. The result: stable temperatures , imperceptible noise at night , and reduced summer consumption thanks to Eco mode and the ability to turn off unoccupied rooms.

Single-family house in Fabreville (Laval) – 9 + 9 + 12 with mini-cassette on the ground floor

The 22 x 22-inch mini-cassette on the ground floor distributes air in 4 directions , limiting cold spots near the staircase. Upstairs, two 9,000 BTU wall-mounted heaters ensure nighttime comfort. Last winter, the system maintained the setpoint without electrical overload during cold peaks.

Duplex in Longueuil – 7 + 12 + 12 and Floor console in the office

The Floor Console replaced an old convector under the window: better diffusion and simpler pipe routing . Occupants appreciate the remote control from the app to adjust the heating before returning home.

Good practices and mistakes to avoid

• Oversizing the open air head "just to be sure" is not a good idea: you risk short cycles , poor comfort and increased consumption .

• Undersizing a west-facing glazed area while thinking of compensating with the other heads rarely ends well: in multi-room , the capacity is distributed and each room must have its own power .

• Forget about condensate routes : during renovations, managing slopes and accessing siphons avoids service returns.

• Ignore outside noise : Position the unit away from bedroom windows and respect clearances . The RAM-G24N3HAA remains compact ( 33.5 × 11.7 × 31.5 in ), but the installation must respect ventilation and service.

Key specifications (selection)

• Outdoor Unit : RAM-G24N3HAA ( 24,000 BTU , 208-230 V, 1 Ø, 60 Hz) – 3 Outlets . SEER2 up to 22.0 , HSPF2 up to 9.5 (R4) / 7.8 (R5) . Heating down to –20°C . R-32 . 54 dB(A) . 200 ft total length, 66 ft elevation, 82 ft between units, 16 ft minimum. Dimensions : 33.5 × 11.7 × 31.5 in .

• Compatible indoor units (wall-mounted examples) : RAK-DJ07QHAA , RAK-DJ09RHAA , RAK-DJ12RHAA , RAK-DJ18RHAA , RAK-DJ24RHAA (airHome 400/650). Low noise levels : 27–29 dB(A) depending on model/size. Generous airflow for open rooms.

• Options : airCloud Go ( SPX-WFA01 , Wi-Fi), R-32 leak detection , airPoint Room H700 wall control (wired), 22 × 22 in mini-cassette , Floor console , ducted for invisible integration.

What you gain with AirGreen

• 100% free on-site estimate in Montreal , Laval , Longueuil , North Shore , South Shore .

• Transparent prices : we provide a final offer before work , with no surprises.

• Experienced professional refrigeration engineers : careful installation and fast after-sales service .

• Payment at the end : you only pay when you are 100% satisfied .

Contact details and service points:
Montreal – Laval : (514) 316-2973 • 4951 Ste-Catherine Est, Montreal
South Shore (Showroom) : (514) 316-3007 • 1370 Rue Joliot-Curie, Boucherville (Loc. 712)
Email: sales@airgreen.ca
(Information taken from our website and the manufacturer's technical documentation).

Practical conclusion

The HITACHI airHome Multi – TripleZone 24,000 BTU is a strategic choice for those who want a scalable system , efficient in cold conditions , easy to maintain , and very flexible to adapt each room . By combining precise sizing , careful installation , and filtration and self-cleaning technologies , we obtain more comfortable , healthier , and more energy-efficient homes in Montreal , Laval , Longueuil , on the North Shore and the South Shore .

Next Step
Ready to set up your HITACHI airHome Multi TripleZone ? Contact AirGreen for your free on-site estimate and a clear final proposal . We help you choose the right trio of heads , optimize pipe runs , and plan a hassle-free HVAC installation .