FUJITSU AIRSTAGE J-7S Mini-VRF | 24000 BTU - 2 Zones R32

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A Mini-VRF solution designed for the climatic and architectural realities of Quebec

At AirGreen , we have been installing HVAC systems for many years in very real-world contexts: older buildings in Montreal , recent constructions in Laval , multi-unit dwellings in Longueuil , single-family homes on the North Shore , and mixed-use buildings and commercial properties on the South Shore and in the Montérégie region . The FUJITSU AIRSTAGE J-7S Mini-VRF | 24000 BTU – 2 Zones R32 is a perfect fit for this real-world situation.

This system is not intended for theoretical or standardized use. It was designed to address real-world constraints: limited outdoor space, intensive heating needs in winter, varying comfort requirements in different zones, and a desire to reduce long-term energy costs. It represents a smart, intermediate solution between a conventional multi-zone heat pump and a high-capacity commercial VRF system.

The Mini-VRF: a different design logic from the traditional multi-zone.

A more stable, more predictable and better controlled technology

In several projects where AirGreen intervened after the installation of a classic multi-zone system, the observation is often the same: variable heating performance, prioritization of one zone at the expense of another, less fluid cycles and efficiency that drops during periods of extreme cold.

The AIRSTAGE J-7S Mini-VRF is based on a different logic:

• Independent and precise management of each area , without compromise

• Advanced compressor modulation , adjusting the actual power according to the instantaneous demand

• More balanced energy distribution , even when both zones are used simultaneously

• Increased thermal stability , particularly during continuous heating

In a renovated duplex in Longueuil , we replaced two independent systems with a single J-7S Mini-VRF. The result: less visible equipment on the exterior, a noticeable reduction in ambient noise, and a more consistent temperature in each unit, even during prolonged periods of cold.

Heating performance truly adapted to Quebec winters

Guaranteed heating down to -26°C without excessive reliance on backup heating

The FUJITSU AIRSTAGE J-7S is designed to maintain reliable operation down to -26°C , a critical threshold for regions like Montreal , Laval and the North Shore , where episodes of intense cold are not only possible, but recurrent.

Representative performance data:

• Rated capacity : 24,000 BTU

• Available power at -8°C : approximately 17,400 BTU

• Available power at -15°C : up to 26,200 BTU

• High efficiency at low temperatures , allowing for stable heating without excessive cycling.

In a small commercial building on the South Shore , this system made it possible to maintain comfortable temperatures in two areas with distinct uses (office and service area), while almost completely eliminating the need for supplemental electric heating.

Energy efficiency and concrete reductions in operating costs

A measurable return, not just a theoretical one

Beyond the figures, what we observe in the field with the Mini-VRF J-7S is more stable electricity consumption throughout the heating season. The precise modulation avoids sudden starts and limits consumption peaks.

The system is:

• ENERGY STAR® certified , including cold climate recognition

• Designed to operate efficiently over long periods at partial load

• Using R-32 refrigerant , known for its better balance between performance and environmental impact

This efficiency makes the system eligible for the provincial LogisVert subsidy , currently valued at $2,088 , which significantly improves the net cost of the project for many owners in Montreal , Laval and Montérégie .

At AirGreen , we systematically integrate subsidy analysis from the submission phase so that the client has a clear, realistic and complete view of their investment.

Remarkable flexibility in the choice of indoor units

Adapt each area to its actual use

One of the major advantages of the FUJITSU AIRSTAGE J-7S Mini-VRF is its compatibility with several types of indoor units. This flexibility is essential in buildings where needs differ from room to room.

Among the configurations that we regularly install:

• Ducted Slim Unit

  • Ideal for low ceilings

  • Discreet and uniform air distribution

  • Perfect for open-plan spaces or high-end renovations

• Compact cassette

  • Highly valued in shops and offices

  • Homogeneous diffusion in four directions

  • Seamless integration into standard ceilings

• Wall unit

  • A simple, effective and quiet solution

  • Excellent individual control of the area

  • Quick installation and simplified maintenance

• Multi-position air handling unit

  • Suitable for existing conduit networks

  • High static pressure for wide distribution

In Laval , we recently combined a ducted unit for common areas and a wall-mounted unit for a closed office. The result: precise comfort in each zone, without excessive energy consumption or noise.

Easy installation even in constrained urban environments

Compact, discreet and well-designed outdoor unit

In several neighborhoods of Montreal and Longueuil , outdoor space is a major constraint. The Mini-VRF J-7S stands out with a more compact outdoor unit than systems of comparable capacity.

This allows:

• An installation under a window

• Integration on a balcony

• A discreet positioning behind a railing

• A narrow backyard location

With a noise level of approximately 54 dB(A) , the system complies with municipal requirements and reduces disturbances for occupants and the neighborhood.

The extended maximum piping length and large tolerance for height differences also offer valuable installation freedom in multi-story buildings.

Refrigerant safety and responsible design

The choice of R-32 is not insignificant. In addition to offering better thermal performance, it is used here with an enhanced safety approach:

• Reduced refrigerant charge , compared to previous generations

• Leak detection sensors are integrated into certain configurations.

• Option for automatic shut-off systems in case of malfunction

In multi-unit residential buildings on the North Shore , these elements are particularly reassuring for owners and managers, both from a regulatory standpoint and in terms of peace of mind.

Common mistakes avoided thanks to the AirGreen approach

Over the years, we have identified several causes of dissatisfaction related to poorly designed multi-zone and Mini-VRF systems:

• Undersizing or oversizing of areas

• Incorrect selection of the type of indoor unit

• Piping unsuitable for Mini-VRF requirements

• Lack of a clear de-icing and regulation strategy

At AirGreen , every project begins with a rigorous thermal analysis , followed by a precise configuration selection. This methodology allows the FUJITSU AIRSTAGE J-7S to deliver consistent, long-lasting performance that meets the client's expectations.

Why entrust your Mini-VRF project to AirGreen

• Qualified and experienced refrigeration technicians

• Final clear submission before work begins

• No surprises at the end of the project

• $5,000,000 liability insurance

• Recognized expertise in residential , commercial , and multi-unit housing.

• Active presence in Montreal , Laval , Longueuil , North Shore , South Shore and Montérégie

We do not offer a standard system: we design a coherent HVAC solution , tailored to your building, your lifestyle and your energy objectives.

Upgrade to a high-performance, durable, and scalable Mini-VRF solution

If you are looking for an HVAC system capable of providing reliable heating down to -26°C , precise two-zone management and proven energy efficiency , the FUJITSU AIRSTAGE J-7S Mini-VRF | 24000 BTU – 2 Zones R32 deserves a thorough analysis.

Contact AirGreen for a technical assessment , a detailed quote or personalized advice for your project in Montreal , Laval , Longueuil , on the North Shore or the South Shore .