FUJITSU AIRSTAGE J-7S VRF R32 | 48000 BTU - 3 Indoor Units

• BROCHURE: FRENCH
• BROCHURE: ENGLISH

A Mini-VRF architecture designed for demanding buildings in Quebec

When a property owner or manager lands on this page, it's rarely out of curiosity. In the vast majority of cases, they are looking for an HVAC solution capable of meeting several simultaneous constraints : a harsh winter climate, spaces with different uses, high expectations for comfort, and a clear desire to control long-term energy costs.
It is precisely in this context that the FUJITSU AIRSTAGE J-7S VRF R32 of 48,000 BTU , configured with 3 indoor units , makes perfect sense.

At AirGreen , we've witnessed the evolution of needs over the years in Montreal , Laval , Longueuil , and on both the North and South Shores . Buildings are more complex, expectations are higher, and the margin for error is much smaller. The J-7S Mini-VRF is designed to meet this new reality: a compact system, yet conceived as a professional-grade solution.

Mini-VRF J-7S: understanding what changes in practice on the ground

A VRF system is more than just a technical specification sheet. The difference is felt most in everyday use, both in winter and summer.

Unlike a traditional multi-zone heat pump, the J-7S continuously adjusts the refrigerant flow sent to each indoor unit. This allows:

• Very precise temperature control by zone

• A marked reduction in temperature variations

• Improved comfort stability, even during rapid load changes

In mixed-use buildings — for example, a commercial ground floor with apartments above — this adaptability makes a real difference.

A heater designed to work when it's really cold

In Quebec, heating performance isn't a marketing ploy: it's a requirement. The FUJITSU AIRSTAGE J-7S is designed to provide stable heating capacity down to -26°C , without relying on energy-intensive backup systems.

What this means in real-world conditions

In several projects carried out by AirGreen :

• Apartment buildings in Longueuil

• Intergenerational homes in Laval

• Professional offices on the South Shore

We observed consistent thermal stability , even during prolonged periods of intense cold. The integrated base heating and intelligent compressor management allow the system to maintain its capacity without unnecessary strain.

48,000 BTU configuration – 3 indoor units: a strategic balance

Although the 48,000 BTU J-7S can power up to 12 zones , the 3 indoor unit configuration is often chosen for very practical reasons:

• Best reserve capacity per area

• Quieter operation

• Optimized performance over the entire annual cycle

Types of indoor units suitable for this configuration

Depending on the building's architecture and the client's priorities, we often combine:

• Slim ducted units for uniform and invisible diffusion

• Wall-mounted units in targeted spaces where flexibility is desired.

• Compact cassettes for standard ceilings in commercial spaces

• Air handling units when the existing distribution system must be retained

This versatility helps avoid costly compromises during renovations or changes of use.

Energy efficiency and long-term cost reduction

A system in this category is rarely chosen solely for its initial price. Decisions are made based on the system's entire lifespan .

Seasonal effectiveness and real-world performance

The FUJITSU AIRSTAGE J-7S R32 is distinguished by:

• Excellent efficiency in seasonal air conditioning

• Stable heating efficiency even at low temperatures

• A fine modulation that limits unnecessary cycles

In buildings where charges vary greatly depending on occupancy, this modulation results in more predictable consumption and better-controlled energy bills.

LogisVert subsidy and energy recognition

This model is eligible for the $4,296 LogisVert provincial grant , a factor that is often decisive in the final decision, particularly for owner-occupiers and long-term residential projects.

The choice of R-32 refrigerant: a technical decision, not a symbolic one

The switch to R-32 is not insignificant. It is a refrigerant:

• More thermally efficient

• Requiring a reduced total load

• Better aligned with current environmental requirements

In multi-residential and commercial projects, this choice also facilitates discussions with insurers and inspectors, while preparing the building for future standards.

Installation: what AirGreen experience allows us to anticipate

Pipe lengths and site constraints

The J-7S offers great installation flexibility thanks to:

• A very high total pipe length

• A high tolerance for height differences

This allows the outdoor unit to be installed in discreet locations: balconies, narrow backyards, existing technical areas, without compromising performance.

Security and peace of mind

For ducted units, leak detection devices are integrated or available as an option. In apartment buildings, these components play a key role in:

• Protect the occupants

• Reducing risks associated with refrigerant

• Simplify regulatory compliance

Common mistakes avoided through rigorous design

With Mini-VRF systems, problems almost never originate from the equipment itself, but rather from:

• Incorrect calculation of thermal loads

• Inadequate selection of indoor units

• Uneven distribution of areas

• Lack of an overall vision of the building

At AirGreen , each project is designed as a coherent whole. This approach allows the FUJITSU AIRSTAGE J-7S to express its full potential, without additional cost or compromise on reliability.

Why AirGreen is a natural partner for this type of system

Installing a 48,000 BTU Mini-VRF requires more than a standard installation. It requires:

• Refrigeration technicians specializing in VRF

• A thorough knowledge of local climate realities

• An ability to anticipate the future needs of the building

We support our clients at every stage, with clear quotes , $5 million liability insurance , and structured after-sales service , recognized throughout the Greater Montreal area.

In summary: a sustainable and well-thought-out HVAC solution

The FUJITSU AIRSTAGE J-7S VRF R32 | 48,000 BTU – 3 indoor units is designed for projects where performance, flexibility, and durability are non-negotiable. When properly designed and installed, it offers:

• Consistent comfort all year round

• High energy efficiency

• A remarkable adaptation to complex buildings

Take the next step with AirGreen

Whether your project is located in Montreal , Laval , Longueuil , on the North Shore or the South Shore , our team can assist you in the analysis, design and installation of this Mini-VRF system.
Contact AirGreen now for a detailed quote or to discuss the best configuration for your building.