LG Multi-Position Blower Cabinet | 3.5 Tons - 42000 BTU

A high-performance central HVAC solution adapted to Quebec's climate

At AirGreen, we regularly install central systems capable of meeting the real demands of properties located in Montreal, Laval, Longueuil, on the North Shore and the South Shore. The LG 3.5-ton (42000 BTU) multi-position blower cabinet represents a modern, reliable, and optimized solution for Quebec's climatic conditions.

This model, designed to work with the LG central heat pump KUSXB421A, is distinguished by its installation versatility, high energy performance, and its ability to maintain constant comfort, even when outdoor temperatures drop.

Why choose an LG multi-position blower cabinet for your HVAC installation

Essential installation flexibility in urban areas

In many installations we carry out in Montreal or Longueuil, space constraints are a determining factor. The LG multi-position blower cabinet offers exceptional flexibility:

• Vertical or horizontal installation
• Adaptation to basements, ceilings, or confined spaces
• Compatible with different duct configurations

During a recent project in Laval, we replaced an old central system in a single-family home where mechanical space was very limited. Thanks to the multi-position configuration, we were able to optimize airflow without major modifications to existing ducts.

A perfectly balanced 42,000 BTU capacity

With a nominal capacity of 42,000 BTU (3.5 tons), this system is ideal for:

• Medium to large single-family homes
• Plexes and multi-unit dwellings
• Light commercial spaces

This type of capacity is frequently recommended by our team after a complete thermal analysis, particularly in the South Shore and Montérégie sectors, where temperature variations are significant.

Heating performance adapted to Quebec winters

This model is designed to operate efficiently down to -16 °C, with impressive heating power:

• 42,000 BTU under optimal conditions
• 38,500 BTU at -15 °C
• 31,000 BTU at -8 °C

In a project carried out in Boucherville, a client wanted to replace a costly electric system. After installing this LG system, energy consumption was significantly reduced, while maintaining a stable temperature throughout the house.

High energy efficiency (ENERGY STAR and cold climate)

This system is ENERGY STAR certified, including the cold climate version, which means:

• Better annual energy performance
• Eligibility for subsidies like LogisVert (up to $3720)
• Significant reduction in electricity costs

Our clients in Montreal and Laval often choose this model precisely to maximize savings while enjoying constant comfort.

Essential technical data to know

Energy efficiency and performance

• SEER2: 18.0
• EER2: 11.70
• HSPF2: 9.50
• COP at -8 °C: 11.83

These values indicate excellent efficiency in heating and air conditioning mode, which is particularly important for the long winter seasons in Quebec.

Airflow and indoor comfort

• Maximum airflow: up to 1942 CFM
• Indoor airflow: 1000 to 1225 CFM depending on speed
• Dehumidification: 7.9 pints/hour

During an installation in Longueuil, a client suffered from a persistent humidity problem. After installing the LG system, the indoor humidity level stabilized, improving overall comfort and air quality.

Discreet sound level

• Indoor unit: 36 to 41 dB(A)
• Outdoor unit: 54 to 56 dB(A)

This allows for installation in residential environments without noise pollution, even in densely populated areas like certain sectors of Montreal.

Electrical data and safety

• Voltage: 208-230V
• MCA: 32 A
• MOP: 40 A

Our technicians always ensure that the electrical installation complies with local standards, which is essential for the durability of the system.

Professional HVAC installation: a determining factor

Common mistakes we often correct

At AirGreen, we regularly intervene on poorly executed installations. Here are the most common errors:

• Incorrect system sizing
• Improper duct installation
• Inadequate insulation
• Poorly configured drainage

In one case in Laval, a similar system had been installed without adequate thermal calculation. The result: overconsumption and cold zones. After our intervention and replacement with this LG model, comfort was completely restored.

Importance of proper duct sizing

The LG blower cabinet requires an adapted duct design to:

• Maximize airflow
• Reduce pressure losses
• Ensure uniform distribution

We use professional tools to calculate static pressure (ESP) and optimize each installation.

Advanced features and daily comfort

Inverter technology and smart control

This system uses a variable speed compressor allowing for:

• Precise temperature adjustment
• Reduction of on/off cycles
• Optimized energy consumption

Modern control options

• WiFi (optional)
• Smart thermostats
• Multi-zone control possible

In several projects on the North Shore, our clients opt for WiFi control to manage their system remotely, particularly useful for secondary residences.

Manufacturing quality and durability

• GoldFin™ anti-corrosion coating
• Robust components adapted to the Canadian climate
• Warranty: 10 years compressor / 10 years parts

Why choose AirGreen for your HVAC installation

Concrete field expertise

Our teams carry out installations every week in:

• Montreal
• Laval
• Longueuil
• South Shore and North Shore

We never offer a generic solution. Each project is adapted to the real needs of the building.

A transparent and professional approach

• Detailed quote before work
• No price surprises
• Clear explanations of options

Certified and experienced technicians

Our refrigeration technicians are perfectly proficient in:

• LG systems
• Complex central installations
• RBQ and electrical standards

Optimization of subsidies

We support our clients in maximizing available aid, including:

• LogisVert program
• Other local subsidies

Conclusion: a strategic choice for lasting comfort

The LG 3.5-ton (42000 BTU) multi-position blower cabinet represents a complete solution for homeowners seeking:

• Reliable performance in winter
• Efficient air conditioning in summer
• Flexible installation
• Reduced energy costs

At AirGreen, we recommend this system in many cases, particularly when the goal is to achieve a balance between performance, efficiency, and durability.

Contact AirGreen for your HVAC project

For a precise estimate, a thermal analysis, or personalized advice for your property in Montreal, Laval, Longueuil, North Shore, or South Shore, contact our team directly. We will guide you to the solution best suited to your situation.