FUJITSU AIRSTAGE J-7S Mini-VRF | 24000 BTU - 3 Zones R32
SEER2 (Seasonal Air Conditioning Efficiency)
HSPF2 (Seasonal heating efficiency)
EER2 (Instantaneous efficiency in air conditioning)
COP at -8 °C (Heating energy efficiency)
Maximum Pipe Length (feet)
Maximum Height Difference (feet)
A Mini-VRF solution designed for the concrete realities of the Quebec climate
At AirGreen , we never present an HVAC system in a theoretical way. Every product we install is evaluated through real-world projects: renovated older homes in Montreal, multi-unit residential buildings in Laval, mixed-use buildings in Longueuil, high-end residences on the North Shore , and new construction on the South Shore . The FUJITSU AIRSTAGE J-7S Mini-VRF 24,000 BTU – 3-zone R32 is one of those systems that we've come to appreciate in the field, season after season.
This Mini-VRF model was designed to meet very specific requirements: reliable primary heating in winter, independent zone control, long piping runs, and the possibility of integration into buildings where mechanical space is limited. In a Quebec context, these criteria are not secondary: they determine the actual durability of an HVAC system.
Unlike traditional multi-zone systems, often pushed to their limits in complex projects, the J-7S offers a more stable, flexible and consistent architecture for small and medium-sized residential and commercial buildings.
A Mini-VRF approach that goes beyond conventional multi-zone systems
In many projects we take over as fixes, the problem isn't the installed brand, but the type of system chosen. A standard multi-zone system might work correctly in a simple context, but quickly shows its limitations when:
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The areas are far apart from each other.
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Heating requirements are high.
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Several types of indoor units are needed,
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or that the building has significant changes in elevation.
The FUJITSU AIRSTAGE J-7S Mini-VRF corrects these issues by providing a management logic closer to commercial VRF systems, while remaining accessible for residential or semi-commercial projects.
In practical terms, this means:
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improved pressure stability in the refrigeration network,
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a more balanced distribution of energy between zones ,
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a reduction in capacity losses when multiple units operate simultaneously,
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and a design flexibility that greatly simplifies the HVAC installation work.
In several multi-unit residential buildings that we have equipped in Montreal, this approach has made it possible to avoid the proliferation of outdoor units, while offering occupants precise control over their comfort.
Thermal performance adapted to harsh winters
The FUJITSU AIRSTAGE J-7S 24,000 BTU is distinguished above all by its ability to function as a primary heating system , and not as a simple supplementary solution.
Among the characteristics that make a real difference on the field:
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Heating capacity down to -26°C , without interruption of operation
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High heating power even at low temperatures , which reduces the need for electric baseboard heaters.
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Excellent modulation , allowing the system to adjust its production according to the actual demand of the areas
In residences on the North Shore , where temperatures remain below freezing for long periods, this stable behavior translates into constant comfort and better-controlled energy consumption.
Energy efficiency and everyday comfort
Beyond the numbers, what our customers are looking for is a system that doesn't overheat, doesn't blow unnecessarily, and maintains a consistent temperature. Thanks to its high efficiency in both heating and cooling, the J-7S allows you to:
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longer and gentler cycles,
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a reduction in temperature differences between rooms,
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a controlled noise level, even during sustained operation.
These are elements that we systematically check after commissioning, during our HVAC installation follow-ups in Laval and Montérégie.
R-32 refrigerant: a relevant technical choice
R-32 offers several tangible advantages in modern projects. Its superior heat transfer capacity allows the system to react more quickly to load variations, which is particularly useful in buildings with fluctuating occupancy.
Furthermore, the refrigerant charge is reduced :
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facilitates integration into confined spaces,
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improves overall system security
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and contributes to more responsible long-term exploitation.
In some renovation projects in Montreal, this feature has made it possible to install a Mini-VRF where an older system would have been difficult to comply with current standards.
Installation flexibility that simplifies complex projects
The AIRSTAGE J-7S outdoor unit stands out for its more compact size compared to many systems of similar capacity. This feature is far from insignificant in dense neighborhoods, where every centimeter counts.
We have installed this model:
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under windows,
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on balconies,
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in a narrow backyard,
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or on discreet wall bases, without compromising performance.
Wide compatibility of indoor units
Depending on the specific needs of each area, AirGreen can combine several types of compatible indoor units:
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wall units for living spaces,
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Slim ducted units for invisible diffusion
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compact cassettes for standard ceilings,
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air handling units for larger areas.
This versatility is particularly appreciated in mixed-use buildings in Longueuil and on the South Shore , where each space imposes its own aesthetic and functional constraints.
Pipe lengths and elevation changes: true design freedom
With significant pipe lengths and a high tolerance for height differences , the J-7S allows for the design of consistent HVAC systems, even in multi-story buildings.
In a recent project in Laval, this feature made it possible to efficiently supply units spread over three levels from a single outdoor unit, while maintaining excellent capacity distribution.
Winter reliability and integrated safety
Quebec's winter conditions put HVAC equipment to the test. The FUJITSU AIRSTAGE J-7S incorporates several features designed to maintain stable operation:
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integrated basic heating,
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electronic components protected against extreme cold,
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refrigerant leak detection options depending on the configuration of the indoor units.
These features significantly reduce the risk of breakdowns during critical periods, resulting in fewer emergency service calls and increased peace of mind for owners.
Subsidies and the logic of return on investment
The FUJITSU AIRSTAGE J-7S 24,000 BTU is eligible for the LogisVert provincial grant , with an amount of up to $2,088 , depending on the configuration and type of building.
Beyond the initial financial assistance, the true return on investment is manifested by:
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better controlled energy consumption
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a reduction in heating costs in winter,
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increased system durability through less aggressive operation.
For many AirGreen customers in Montreal and on the North Shore , these cumulative savings make the Mini-VRF choice particularly relevant in the medium and long term.
Why AirGreen Makes a Difference
Installing a Mini-VRF requires a thorough understanding of building thermodynamics, air distribution, and zone-based load management. At AirGreen , every project begins with a comprehensive analysis:
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calculation of actual loads,
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rigorous selection of indoor units,
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optimization of the piping layout,
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electrical and mechanical coordination.
Our certified refrigeration technicians use proven methods that ensure system reliability from the very first heating season. This rigorous approach explains why our HVAC installations in Laval, Longueuil, and the Montérégie region maintain their performance year after year.
A coherent solution for demanding projects
The FUJITSU AIRSTAGE J-7S Mini-VRF 24,000 BTU – 3 zones R32 is aimed at owners and managers who are looking for a serious solution, capable of meeting the climatic realities of Quebec without compromising on comfort, flexibility and durability.
In many AirGreen projects in Montreal, Laval, Longueuil, on the North Shore and the South Shore , this system has established itself as a balanced and reliable option, for both residential and semi-commercial use.
Contact AirGreen
For a personalized assessment , a detailed quote , or specific advice on the HVAC system best suited to your building, contact AirGreen . Our team will guide you from design to commissioning, with a clear, structured approach focused on lasting results.