Installation of a Gree Multi GEN2 DoubleZone Heat Pump in Lachine, Montreal
Explore the detailed installation process of a Gree Multi GEN2 DoubleZone Heat Pump by AirGreen in Lachine, Montreal. Discover why this advanced HVAC system is perfect for your home!
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Cutting-Edge HVAC Solutions for Montreal Homes
At AirGreen, we are dedicated to providing and installing top-quality HVAC systems throughout Greater Montreal, including Laval, Longueuil, the North Shore, and the South Shore. Our latest project involved installing a Gree Multi GEN2 DoubleZone Heat Pump in a beautiful home in Lachine, Montreal. This installation showcases our commitment to delivering efficient and reliable heating and cooling solutions tailored to the specific needs of our clients.
Comprehensive Installation for Maximum Comfort
This installation project featured the Gree Multi GEN2 DoubleZone Heat Pump, renowned for its high efficiency and innovative technology. With a 36,000 BTU compressor and two 18,000 BTU indoor units, this system is designed to provide optimal comfort in both heating and cooling modes.
Key Features of the Gree Multi GEN2
- Cooling Capacity: 36,000 BTU
- Heating Capacity: Operates efficiently even at -30°C
- Zones: 2 Zones (Double Zone), expandable up to 5 Zones
- Dimensions (Exterior): 42.81 x 17.31 x 43.44 inches
- Energy Star® Certified
- WiFi Connectivity: Included
- Efficiency: 22.0 SEER
- Sound Pressure Level (Exterior): 63.0 dB(A)
- Refrigerant Type: R-410A
- Warranty: 12 years on the compressor and parts
- Voltage: 220V
Seamless Integration and Professional Installation
Our team meticulously planned the installation to ensure that the Gree Multi GEN2 system would integrate seamlessly into the home's existing infrastructure. The process involved:
- Assessment and Planning: We began with a comprehensive assessment of the home’s heating and cooling requirements. This included evaluating the placement of the indoor and outdoor units to maximize efficiency and minimize noise.
- Installation of the Outdoor Unit: The outdoor unit was strategically placed to ensure optimal airflow and accessibility for maintenance. The unit’s compact dimensions and sleek design allowed it to fit perfectly in the designated area.
- Setup of the Indoor Units: We installed two 18,000 BTU indoor units in key areas of the home. These units are designed to distribute conditioned air evenly, ensuring a comfortable environment throughout the house.
- Connection and Calibration: Our technicians connected the units using high-quality refrigerant lines and electrical wiring. The system was then calibrated to ensure optimal performance and energy efficiency.
Innovative Technology for Superior Performance
The Gree Multi GEN2 heat pump is equipped with G10 Inverter Technology, which offers several advantages:
- Energy Efficiency: The inverter technology reduces power consumption, resulting in lower electricity bills.
- Precise Temperature Control: It ensures consistent indoor temperatures by adjusting the compressor speed according to the cooling or heating demand.
- Quiet Operation: With a sound level of only 63 dB(A), the outdoor unit operates quietly, ensuring minimal disruption to the household.
Smart Features for Enhanced Convenience
The Gree Multi GEN2 comes with a host of smart features designed to enhance user convenience and system efficiency:
- Self-Diagnosis: The system can self-diagnose issues, reducing maintenance costs and ensuring optimal performance.
- Intelligent Defrost: This feature minimizes energy loss by only defrosting when necessary, rather than on a fixed schedule.
- Automatic Voltage Adaptation: Ensures stable operation even with voltage fluctuations, protecting the system from potential damage.
- WiFi Capability: Allows homeowners to control the system remotely via a smartphone app, providing convenience and flexibility.
Eligible for LogisVert Grant from Hydro-Québec
One of the highlights of this installation is that the Gree Multi GEN2 is eligible for the LogisVert Grant from Hydro-Québec, offering a rebate of $3696. This grant makes the installation even more affordable, providing significant savings to the homeowner.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we pride ourselves on our expertise and commitment to customer satisfaction. Here’s why you should choose us for your next HVAC project:
- Experienced Technicians: Our team of certified technicians has extensive experience in installing and maintaining HVAC systems.
- Customized Solutions: We tailor our services to meet the specific needs of each client, ensuring maximum comfort and efficiency.
- Quality Products: We only use top-of-the-line products from reputable brands like Gree, ensuring reliability and longevity.
- Exceptional Service: From initial consultation to post-installation support, we provide exceptional service at every step.
Conclusion
The installation of the Gree Multi GEN2 DoubleZone Heat Pump in Lachine, Montreal, is a testament to our commitment to delivering high-quality HVAC solutions. With its advanced features, energy efficiency, and smart technology, this heat pump provides the perfect balance of comfort and convenience. If you’re looking for a reliable and efficient heating and cooling solution, contact AirGreen today to learn more about our services and how we can help you achieve optimal indoor comfort.
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).