FUJITSU AIRSTAGE J-7S Mini-VRF R32 | 36000 BTU - 4 Heads

A Mini-VRF architecture designed for the Quebec climate and complex buildings At AirGreen , we install HVAC systems in very specific contexts: renovated single-family homes in Montreal , income properties in Laval , new condominiums in Longueuil , upscale residences on the South Shore , and older buildings on the North Shore . In these types of projects, the FUJITSU AIRSTAGE J-7S Mini-VRF R32 with 36,000 BTU and 4 heads addresses a clear need: to offer a centralized, high-performance, multi-zone solution for extreme heating, while remaining flexible to install and stable in the long term. This system is not intended for standard projects. It is designed for buildings where air distribution, independent zone management, and winter reliability are paramount. The J-7S Mini-VRF sits between residential multi-zone systems and heavy-duty commercial VRFs, making it a strategic option for many hybrid projects. Understanding the real difference between a Mini-VRF and a classic multi-zone VRF In our field experience, many customers still confuse multi-zone and Mini-VRF systems. The difference becomes particularly noticeable after a few seasons of use. The J-7S Mini-VRF offers: More precise management of thermal loads by zone. Increased compressor stability , even when not all areas are in demand simultaneously. Improved tolerance to long piping distances and height differences. In projects in Montreal where indoor units are spread over several floors, this architecture helps to avoid the performance losses that are often seen with classic multi-zone systems pushed to their limit. Heating down to -26°C: what this really changes in winter On paper, several systems advertise cold climate capabilities. In practice, few maintain these capabilities consistently during prolonged periods below -20°C. The FUJITSU AIRSTAGE J-7S is designed to operate in heating mode down to -26°C , without forced shutdown, thanks to: A compressor optimized for low temperatures. A basic heating system integrated into the outdoor unit. Fine electronic regulation that limits drops in performance. In installations on the North Shore , we observed continuous heating where less robust systems required frequent top-ups. This translates into more stable comfort and better predictability of energy costs. 36,000 BTU capacity: adjustable power, not raw With its 36,000 BTU output , this model is not designed to overheat unnecessarily. Its strength lies in its ability to precisely modulate power according to the actual needs of each zone. In a 4-zone configuration, we often use this capacity for: Separate living and sleeping areas. Thermally insulating a basement or a home office. To offer independent comfort to separate dwellings. The system accepts different types of indoor units: Wall-mounted units for a quick and direct response. Compact cassettes for even diffusion in open rooms. Slim ducted units when aesthetics and discretion are priorities. Multi-position air handling units for more technical needs. This freedom of configuration is one of the main advantages of the Mini-VRF in complex projects in Laval and Longueuil . R-32: a technical choice that has a real impact The switch to R-32 is not only environmental. It directly influences the performance, safety, and durability of the system. In practical terms, R-32 allows: Better energy efficiency at equivalent power. A reduced refrigerant charge , which decreases the risks in case of a leak. Increased compliance with current and future standards. In several eligible projects, this choice also facilitates access to programs like the LogisVert grant , with amounts of up to $3,144 , depending on the configuration and the current update date. Energy efficiency: beyond the numbers The high values ​​of SEER2 , HSPF2 , EER2 and the COP of 12.143 at −8 °C translate into tangible benefits: More regular consumption without unnecessary spikes. Consistent comfort, even on very cold days. A reduction in temperature differences between zones. In residences in Montreal , we have found that this stability also improves the overall perception of comfort: less noise, fewer abrupt cycles, and a more homogeneous thermal environment. Installation flexibility: a major advantage in renovation A large part of our installations involve existing buildings with constraints: low ceilings, stairwells, load-bearing walls, narrow balconies. The AIRSTAGE J-7S allows: Extended pipe lengths , ideal for complex layouts. A significant difference in height between the units. A compact outdoor unit, easy to integrate visually. In Longueuil , we recently installed this system in a multi-unit residential building where the outdoor unit had to be positioned under a window, without extending beyond the railing. This flexibility avoided costly structural work. Security, reliability and peace of mind The Mini-VRF J-7S incorporates safety features that are particularly relevant for ducted systems: Leak detection sensors are integrated on some units. Visual and audible alarm options. Automatic refrigerant shut-off options. These elements are essential in multi-unit residential buildings and commercial spaces, where incident prevention is paramount. Common mistakes that we correct from the design stage With Mini-VRF systems, certain decisions made at the outset have a direct impact on long-term performance: Undersize to reduce the initial cost. Neglecting the balancing of zones. Choosing an installer without real experience in Mini-VRF. At AirGreen , every project begins with a precise analysis of the building's loads, uses, and actual constraints. This approach avoids costly compromises after installation. Why entrust your project to AirGreen Installing a FUJITSU AIRSTAGE J-7S Mini-VRF R32 requires specific expertise. At AirGreen , we offer: Qualified and experienced refrigeration technicians . Transparent prices , confirmed before work begins. A $5,000,000 liability insurance policy . An active presence in Montreal , Laval , Longueuil , on the North Shore , the South Shore and in Montérégie . Our goal is simple: to deliver a stable, efficient and durable system, without improvisation. Conclusion The FUJITSU AIRSTAGE J-7S Mini-VRF R32 | 36,000 BTU – 4 Heads is an advanced HVAC solution designed for demanding buildings and Quebec winters. Its flexibility, cold-climate performance, and multi-zone capability make it a strategic choice for high-quality residential and commercial projects. For a personalized analysis , a detailed quote , or to confirm eligibility for available subsidies , contact AirGreen directly. Our team will support you every step of the way, from design to commissioning.