A complete transformation of residential comfort thanks to perfectly mastered HVAC installation
In Longueuil, in a residential area of modernized 1980s single-family homes, we recently completed a complete HVAC installation of a FUJITSU CENTAURI R32 36,000 BTU (3-ton) central heat pump. This project perfectly illustrates the importance of sizing, air distribution, and quality of execution to achieve real, stable, and lasting comfort.
Behind this installation was a classic problem in the South Shore region: marked temperature differences between the ground floor and the upstairs, inefficient air conditioning during heatwaves, and an aging, underperforming heating system in winter.
Why this choice: a FUJITSU central heat pump adapted to Longueuil's climate
A machine designed for Quebec conditions
The FUJITSU CENTAURI R32 3-ton is a particularly interesting central system for homes with existing ductwork. It offers an excellent balance of performance, stability, and energy efficiency.
Here are the key characteristics of the installed system:
- Capacity: 36,000 BTU (3 tons)
- Refrigerant: R-32 (new generation)
- Certification: ENERGY STAR® (including cold climate)
- AHRI: 217290596
- Effective heating temperature: down to -21°C
- SEER2: 17.6+
- HSPF2: 9.8+
- Voltage: 220V
- Outdoor sound level: approximately 56 dB(A)
- Piping: 3/8 - 5/8
- LogisVert subsidy: up to $3,288
This machine perfectly meets the current requirements of Longueuil homeowners, who are looking for a high-performance heat pump that is eligible for subsidies and reliable in the long term.
A strategic choice based on the actual dwelling
Unlike a generic approach, we took the time to analyze:
- The house's partial insulation
- The existing ductwork network
- Wind exposure
- The room configuration (open-plan vs. closed bedrooms)
This preliminary work allowed us to confirm that the 3-ton size was perfectly suitable, thus avoiding common oversizing errors.
Challenges encountered on the Longueuil site
Confined outdoor space
The outdoor unit, visible in the photo, was installed on a raised base specially designed to:
- Prevent snow accumulation
- Reduce vibrations
- Ensure optimal drainage
Its positioning under an existing structure (such as a balcony or roof overhang) required particular attention to ensure:
- Good air circulation
- Easy access for HVAC maintenance
- Compliance with recommended clearances
Ductwork network optimization
One of the major challenges of this project was air distribution:
- Some rooms received too much airflow
- Others were under-supplied
We proceeded with:
- Complete duct balancing
- Register adjustment
- Validation of air returns
Result: a uniform temperature throughout the house, without excessive energy consumption.
AirGreen installation process: rigor and precision
Key steps performed
Here's how we carried out this central heat pump installation in Longueuil:
-
Complete on-site inspection
- Thermal analysis
- Duct verification
- Electrical validation (MCA/MOP)
-
Site preparation
- Surface protection
- Piping route planning
-
Outdoor unit installation
- Anti-vibration support
- Perfectly adjusted level
- Optimized clearance
-
Indoor unit installation (AMUH36KUAS)
- Integration into the duct system
- Hermetic connection
-
Vacuum pull (micron test)
- Complete moisture removal
- System airtightness validation
-
Commissioning and calibration
- Fan speed adjustment
- System parameterization
A start-up often overlooked... but essential
A poorly adjusted central heat pump can lose a large part of its efficiency. At AirGreen, we place particular importance on this step:
- Precise airflow adjustment
- Thermostat calibration
- Real-world condition tests
Final result: transformed comfort
After installation, the changes were immediate:
- Stable temperature in all rooms
- Significant noise reduction
- Improved nighttime comfort
- Decreased thermal variations
The client particularly noted that the upstairs bedrooms, previously problematic, are now perfectly comfortable, summer and winter alike.
What homeowners absolutely need to know before installing a central heat pump
Frequent mistakes to avoid
Even with an excellent machine like Fujitsu, certain errors can compromise the results:
- Ignoring the condition of existing ducts
- Neglecting air returns
- Installing the outdoor unit too close to the ground
- Omitting the final adjustment
Practical advice
To maximize your investment:
- Always have the sizing validated
- Request a complete duct inspection
- Ensure the installer performs a micron test
- Opt for a contractor specializing in complete HVAC installation
Subsidies and profitability in Longueuil
This installation is eligible for the LogisVert subsidy, which can reach $3,288, significantly reducing the total cost.
In a context of rising energy costs, an efficient central heat pump allows for:
- Reduced consumption
- Improved property value
- Increased daily comfort
Why choose AirGreen for your project in Longueuil
At AirGreen, we don't just sell machines. We deliver complete systems, adapted to each home.
Our commitments:
- Free on-site estimate
- Full price transparency
- Professional installation
- Payment only upon completion of work
- Service throughout Montreal, Laval, Longueuil, North Shore, and South Shore
Every project is treated with the same level of demanding standards, whether it's a small wall-mounted heat pump or a 36,000 BTU central unit.
An ideal solution for Longueuil homes
The FUJITSU CENTAURI R32 central heat pump is particularly suitable for:
- Houses with existing ductwork
- Families seeking uniform comfort
- Homeowners desiring a durable and high-performance solution
In this project in Longueuil, it demonstrated its full potential: stable performance, real comfort, and perfectly successful integration.