FUJITSU AIRSTAGE J-7S Mini-VRF R32 | 36000 BTU - 5 Heads

A Mini-VRF architecture designed for complex buildings in Greater Montreal At AirGreen , we design, install, and maintain HVAC systems in contexts where a conventional heat pump quickly reaches its limits. The FUJITSU AIRSTAGE J-7S Mini-VRF R32 36,000 BTU , configured here with 5 indoor units , is specifically designed for residential and commercial buildings that demand advanced multi-zone management , true winter thermal stability , and maximum installation flexibility . This Mini-VRF system is not simply an evolution of a wall-mounted multi-zone system. It is a thermal distribution platform designed for the architectural realities of Montreal , Laval , Longueuil , the North Shore and the South Shore : narrow buildings, stacked dwellings, partial renovations, floor additions, hybrid commercial spaces, or buildings where each zone has a different use and occupancy. From the first installations carried out by our teams, one observation became clear: the J-7S stands out for its ability to maintain consistent comfort , even when all areas are used simultaneously, in heating as well as air conditioning. Mini-VRF vs. classic multi-zone: concrete differences in the field In day-to-day practice, many customers hesitate between a traditional multi-zone system and a Mini-VRF. This hesitation is understandable, as the two solutions may seem similar on paper. However, in practice, the differences are clear. With a Mini-VRF like the FUJITSU AIRSTAGE J-7S , we observe: More stable regulation when several indoor units are operating simultaneously. Better management of available power , without significant weakening of one area in favor of another. Significantly longer pipe lengths , allowing for the supply of water to remote areas or areas spread over multiple levels. A natural adaptation to buildings under renovation , where refrigeration pathways do not follow a linear logic. In a recent project in Longueuil , a duplex converted into a triplex featured three units with very different sizes and orientations. A traditional multi-zone system would have required compromises. The Mini-VRF system allowed for a balanced distribution, without overheated areas or colder rooms at the ends of the building. Energy performance and actual heating in the Quebec climate One of the most crucial criteria for our customers remains heating capacity in severe winter conditions . The FUJITSU AIRSTAGE J-7S R32 is designed to operate efficiently down to -26°C , without interruption, thanks to a combination of proven technologies: optimized compressor, intelligent defrost management, and integrated base heating. In terms of quantifiable performance, the system displays particularly high values: Rated cooling capacity : 36,000 BTU Heating capacity maintained down to -26 °C COP at -8 °C : 12.143 SEER2 : 121,730 HSPF2 : 110.815 EER2 : 113,620 These improvements translate directly into better-controlled electricity consumption , even during prolonged periods of cold weather. In several multi-unit buildings in Laval , we observed a significant reduction in complaints related to winter comfort from the very first full season of use. A system eligible for provincial subsidies Thanks to its ENERGY STAR® and ENERGY STAR® Cold Climate certifications, this model qualifies for the LogisVert grant , currently set at $3,144 for this type of configuration. At AirGreen , we systematically assist our clients in preparing their applications to avoid rejections due to administrative or technical errors. R-32 refrigerant: a consistent long-term choice The choice of R-32 is not solely based on environmental considerations. In our projects, it also represents a tangible technical advantage: Reduced refrigerant charge , which improves the overall safety of the system. Improved thermal efficiency , particularly in heating. Compliance with current and future standards , avoiding premature replacements. For property managers on the South Shore and in the Montérégie region , this aspect is often decisive: investing today in technology that is already aligned with upcoming regulatory guidelines. Multi-zone configuration: 5 heads, customized logic The AOUK036SSAN7 model offers great design flexibility. While capable of handling more indoor units, the 5-zone configuration represents an optimal balance between performance, control, and energy efficiency in many residential and commercial projects. This type of configuration is particularly suitable for: A large single-family home with multiple floors and a finished basement. A multi-unit building where each unit requires independent monitoring. A commercial space combining public areas, closed offices and technical areas. Choosing indoor units: no universal approach At AirGreen , we never offer a standardized configuration. Each zone is analyzed according to its actual use, occupancy, and architectural constraints. Compatible indoor units include: ARUL slim sheathable *KSA1**: preferred when aesthetics and discretion are paramount. AUUA compact cassette *KSA1**: widely used in offices and shops with modular ceilings. ASUA *KSA1** wall mount : efficient solution for bedrooms, private offices and residential spaces. ARUX *KSA1** air handling unit : ideal for integrating the Mini-VRF into an existing duct network. This diversity allows each area to be optimized without sacrificing either the comfort or the appearance of the spaces. HVAC installation: a crucial phase for actual performance A poorly installed Mini-VRF quickly loses its advantages. That's why our teams pay particular attention to often underestimated elements: Precise calculation of pipe lengths (up to 120 m). Managing height differences of up to nearly 200 feet. Electrical sizing compliant ( 220 V, MCA 29 A, MOP 30 A ). Consistent allocation of capacities between internal units. During a construction project on the North Shore , a commercial building presented severe access constraints for the outdoor unit. The compact size of the J-7S allowed for installation under a window, without any modification to the facade or major visual impact. Errors that we regularly correct In our recovery or optimization interventions, certain errors frequently recur: The outdoor unit is undersized relative to the actual number of zones. Poor planning of condensate drainage. Lack of leak detection devices in ducted sections. Inadequate control settings. These situations generate avoidable losses in productivity and discomfort. Our methodology aims precisely to prevent them from the design stage. Security, reliability and peace of mind The FUJITSU AIRSTAGE J-7S incorporates several features designed for intensive and durable use: Refrigerant-cooled electronic components. Leak detection sensors are integrated on some units. Alarm options and automatic refrigerant shut-off. The standard warranty covers 12 years on the compressor and parts . At AirGreen , we complement this protection with a responsive, local after-sales service provided by our own teams. Why AirGreen Makes a Difference on Mini-VRF Projects Choosing a Mini-VRF also means choosing the installer who can use it to its full potential. Our added value lies in: A rigorous thermal analysis is performed before each submission. Complete control over provincial grants and programs . Experienced refrigeration technicians , familiar with VRF and Mini-VRF systems. A physical presence in Montreal and on the South Shore , with a showroom. Each project is documented, explained and validated with the client, from the first survey to the final commissioning. Conclusion and call to action The FUJITSU AIRSTAGE J-7S Mini-VRF R32 | 36,000 BTU – 5 heads is a high-performance HVAC solution for demanding buildings in Greater Montreal. Its heating capacity in cold climates, multi-zone flexibility, and long-term reliability make it a strategic investment for both residential and commercial applications. For a personalized analysis , a detailed estimate , or to confirm your eligibility for subsidies , contact AirGreen directly. Our team will support you rigorously and transparently at every stage of your HVAC project.