FUJITSU AIRSTAGE J-7S VRF R32 | 48000 BTU - 10 Indoor Units

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A multi-zone HVAC platform designed for demanding buildings in Quebec

At AirGreen, we work daily on complex HVAC projects in Montreal , Laval , Longueuil , on the North Shore , the South Shore and in Montérégie . In these contexts, the constraints are never theoretical: limited mechanical spaces, strict acoustic requirements, variable thermal needs from one zone to another, and above all, a winter climate that puts the equipment to the test.

The FUJITSU AIRSTAGE J-7S VRF R32, with a capacity of 48,000 BTU and capable of powering up to 10 indoor units (and up to 12 zones depending on the configuration), was specifically developed to meet these needs. This next-generation mini-VRF combines stable heating in extreme cold , advanced multi-zone management , high energy efficiency , and installation flexibility —all essential elements for residential, commercial, and multi-unit buildings in Quebec.

A VRF design conceived for real-world climates, not ideal conditions.

Reliable heating down to -26°C, without forced shutdown

One of the critical aspects of any HVAC installation project in Quebec is the system's ability to maintain stable performance during periods of intense cold. The AIRSTAGE J-7S stands out with its ability to operate in heating mode down to -26°C , without an automatic shut-off device. In practice, this means:

• Continuous heating even during prolonged cold spells

• Lack of switching to energy-intensive backup systems

• Constant comfort for occupants, even in the peripheral areas of the building

During projects carried out by AirGreen in multi-unit residential buildings in Montreal East and on the North Shore , this stable behavior during the winter period resulted in a notable reduction in complaints related to temperature variations, particularly in units located at the ends or on upper floors.

A truly usable heating power

Beyond the minimum temperature specified, the essential question remains the power available under real-world conditions . This system offers:

• 48,000 BTU rated power

• 41,500 BTU at −15 °C

• 35,800 BTU at −8 °C

These values ​​allow for precise HVAC sizing , avoiding the frequent errors of undersizing that lead to excessive electricity consumption and premature system wear. In commercial buildings in Laval , this power stability also helps maintain consistent comfort in spaces with fluctuating occupancy, such as offices or meeting rooms.

A multi-zone architecture adapted to the actual uses of buildings

Up to 10 indoor units, independent management per zone

The FUJITSU AIRSTAGE J-7S 48,000 BTU unit can power up to 10 indoor units , with a maximum capacity of 12 zones depending on the configuration. This VRF architecture allows for:

• Simultaneous heating and air conditioning of different areas

• Independent regulation based on occupancy and sun exposure

• A reduction in temperature conflicts between adjacent spaces

In a recent project in Longueuil , AirGreen configured this system to serve both enclosed offices, glazed common areas, and a computer room. Each zone has its own parameters, which optimizes both comfort and energy consumption.

Extensive compatibility with different types of indoor units

The system accepts several indoor unit configurations, which facilitates its integration into existing or renovated buildings:

• Slim ducted unit : ideal when ceiling space is limited, particularly in older buildings.

• Compact cassette : discreet integration into standard ceilings, highly valued in commercial spaces

• Wall mounting : quiet operation, suitable for enclosed offices or homes

• Multi-position air handling unit : a robust solution for large volumes or buildings requiring more complex air distribution.

This diversity allows AirGreen to design truly bespoke HVAC systems, without imposing an architectural or aesthetic compromise.

Energy efficiency and the choice of R-32: measurable effectiveness and environmental compliance

Certified performance in heating and air conditioning

The AIRSTAGE J-7S boasts recognized certifications, confirming its efficiency in both air conditioning and heating in cold climates . Its high performance indicators translate concretely into:

• Controlled electricity consumption throughout the season

• Improved efficiency during long periods of continuous heating

• A reduction in operating costs for property owners and managers

In several multi-unit residential buildings on the South Shore , we have observed a significant decrease in annual energy costs compared to older centralized systems.

R-32 refrigerant: less charge, more control

The use of R-32 gas offers concrete technical advantages:

• Reduced refrigerant charge compared to previous generations

• Improved thermodynamic efficiency

• Integration of leak detection sensors on certain configurations

• Advanced security options for high-density occupancy buildings

These elements are particularly important in residential projects in Montreal , where safety and compliance requirements are high.

Installation flexibility: a major advantage on urban construction sites

Extensive pipe lengths and significant elevation changes

In dense urban environments, the location of the outdoor unit is never ideal. This system allows:

• A total piping length of up to 120 m (393 ft)

• Significant height differences , suitable for multi-story buildings

• Installation is possible under a window, on a balcony, or in a confined space.

In Montreal , AirGreen regularly uses this flexibility to avoid costly structural work and limit the visual impact on facades.

Reduced size and noise management

With controlled external sound pressure levels, the AIRSTAGE J-7S meets the requirements of dense residential neighborhoods. Its compact size facilitates integration into noise-sensitive areas, a criterion often decisive in permit applications and condominium approvals.

Subsidies and smart financial planning

This model is eligible for the LogisVert provincial subsidy , with an amount of up to $4,296 depending on the applicable conditions. At AirGreen, we systematically integrate these programs from the submission phase to provide a clear financial overview , taking into account the actual cost after the subsidy.

Why entrust your VRF project to AirGreen

Proven field expertise in VRF and multi-zone systems

Installing a VRF system is not simply a matter of connecting units. It involves:

• A detailed thermal analysis of the building

• Precise sizing of piping zones and lengths

• Rigorous planning of commissioning and adjustments

Our refrigeration technicians regularly work on VRF projects in Montreal , Laval , Longueuil , on the North Shore and the South Shore , with in-depth knowledge of local constraints and applicable standards.

Transparency, monitoring and after-sales service

Before work begins, we always provide a detailed final quote. After installation, we offer comprehensive support: HVAC maintenance , seasonal adjustments, diagnostics, and prompt after-sales service. This approach minimizes unexpected downtime and extends the system's lifespan.

Conclusion

The FUJITSU AIRSTAGE J-7S VRF R32 48,000 BTU stands out as a high-performance HVAC solution for multi-zone projects in Quebec: real power in cold climates, installation flexibility, high energy efficiency and precise space control.

For a detailed technical analysis , a transparent quote , or professional HVAC installation in Montreal , Laval , Longueuil , on the North Shore , the South Shore , or in the Montérégie region , contact AirGreen directly. Our team will guide you from design to commissioning, with a rigorous approach focused on real-world performance.