Installation of a Gree Sapphire Wall-Mounted Mini Split in Lachine
A Lachine installation that tested our mettle! Journey with AirGreen as we navigate challenges and showcase our HVAC expertise with the Gree Sapphire Mini Split.
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen
The article, chapter by chapter
A Tale of Precision, Professionalism, and Perseverance
The Challenge
Every installation comes with its own set of challenges, but our recent project in Lachine was one for the books. The client's request was clear: a Gree Sapphire Wall-Mounted Mini Split had to be installed in the heart of the house, navigating through a room and a bathroom. This wasn't just any installation; it was a test of our team's expertise, adaptability, and commitment to delivering top-notch service.
The Machine: Gree Sapphire Wall-Mounted Mini Split
Before diving into the intricacies of the installation, let's shed some light on the star of the show: the Gree Sapphire Wall-Mounted Mini Split. This state-of-the-art machine is the epitome of elegance and functionality. With a robust 24,000 BTU capacity, it boasts high energy efficiency, intelligent defrost, and the innovative I-Feel technology. Its features include:
- Energy Star® Certification: Ensuring optimal energy consumption.
- WiFi Connectivity: Offering remote control for maximum convenience.
- AHRI Number: 10157571
- Efficiency: A commendable 21.5 SEER.
- Sound Pressure Levels: Exterior at 59.0 dB(A) and Interior ranging between 27 to 55 dB(A), ensuring a quiet operation.
- Gas (Freon): R-410A, with a cooling capacity of 24,000 BTU and a heating capacity that remains efficient even at -30°C.
Navigating the Maze
The house's layout presented a labyrinthine challenge. The head unit of the heat pump needed a central placement, which meant maneuvering through a room and a bathroom. But that wasn't the end of it. The house's design made it nearly impossible to get the drain pipe out without a drain pump. Enter our solution: a compact drain pump ensuring zero water leakage from the heat pump.
Beyond Installation: A Holistic Approach
What set this project apart wasn't just the installation of an HVAC system. It was our holistic approach to ensuring the client's satisfaction. Recognizing the importance of a clean and professional finish, we brought in a specialized team for gyprock, plaster, and painting work. By the time our technicians wrapped up the installation, the house was restored to its pristine condition, if not better.
Transparency and Trust
At AirGreen, we pride ourselves on our transparency. The client was provided with an accurate estimate during our free in-person consultation, and we honored that estimate when billing. No hidden costs, no surprises. Just honest work at honest prices. And to top it all off, our 10-year warranty on everything, including labor, ensures our clients' peace of mind.
The Outcome
The result? A satisfied client, a seamlessly installed Gree Sapphire Wall-Mounted Mini Split, and a testament to AirGreen's commitment to excellence. This project wasn't just about installing an HVAC system; it was about showcasing our ability to adapt, overcome challenges, and deliver unparalleled service.
Why Choose AirGreen?
Our recent installation in Lachine is a testament to our dedication, professionalism, and expertise. We don't just install HVAC systems; we provide turnkey solutions tailored to our clients' unique needs. With AirGreen, you're not just getting an HVAC system; you're investing in quality, trust, and peace of mind.
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.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
The on-site estimate is free and the quote follows within 24 hours.
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).