Project

Installation of a Tosot wall-mounted air conditioner in Côte-des-Neiges–Notre-Dame-de-Grâce

AirGreen installed a Tosot wall-mounted air conditioner in a condo in Côte-des-Neiges–Notre-Dame-de-Grâce, offering comfort, energy efficiency and impeccable finishing.

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Tosot wall-mounted air conditioner in Côte-des-Neiges–Notre-Dame-de-Grâce
Installation of a Tosot wall-mounted air conditioner in Côte-des-Neiges–Notre-Dame-de-Grâce
Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

A residential project transforming the comfort of a Montreal condo

At AirGreen , we understand that every HVAC installation has its own unique characteristics. Recently, our team completed the installation of a Tosot wall-mounted air conditioner in a condo located in the Côte-des-Neiges–Notre-Dame-de-Grâce area of ​​Montreal . The main objective was to provide optimal comfort in a bright living space while respecting the technical constraints of a modern residential building.

This type of installation perfectly reflects the growing demand from residents of Montreal for compact, efficient systems adapted to the surfaces of condos and apartments.

Why choose a Tosot wall-mounted air conditioner for this project?

The choice of the Tosot wall-mounted air conditioner is based on several key factors:

  • Energy efficiency : Tosot models are generally Energy Star certified, guaranteeing reduced consumption and electricity savings.

  • Discreet design : the installed indoor unit blends harmoniously into the aesthetics of the apartment.

  • Reliable performance : designed to provide consistent cooling, even on the hottest Montreal summer days.

  • Simplified maintenance : Washable filters and easy access to components ensure long-term durability.

Details of the installation carried out by AirGreen

Our team had to overcome several technical challenges to ensure optimal results. Here are the highlights of this installation:

  • Strategic positioning : the wall unit was installed in a central space of the condo, allowing even diffusion of fresh air to the living room and hallway.

  • Wiring and refrigerant pipes : the pipes were carefully concealed using white capping to match the wall finish.

  • Drainage management : the installation was carried out with secure gravity drainage, avoiding the use of a condensate pump.

  • Compliance with electrical standards : a careful connection has been made near the electrical panel to ensure a stable and safe power supply.

Specific context of the project

This project stands out for its location: a modern condo in the Côte-des-Neiges–Notre-Dame-de-Grâce sector, a neighborhood where wall space and interior layout require precise planning. Using a Featherlite compact ladder made it easier to work in a narrow corridor without damaging the surrounding surfaces.

Additionally, the owners wanted a quick installation so they could immediately enjoy the comfort of an air conditioning system during the summer. Our team completed the project in a single day, including commissioning and performance testing.

Concrete benefits for the customer

Following this installation, owners benefit from several advantages:

  • Immediate thermal comfort throughout the living space.

  • Reduce energy costs with an efficient and modern appliance.

  • Increased value of the condo , since the addition of a wall-mounted air conditioning system increases the appeal for a possible resale.

  • Peace of mind thanks to the AirGreen guarantee and maintenance advice provided by our technicians.

AirGreen expertise in Greater Montreal

Every HVAC installation project in Montreal, Laval, Longueuil, the North Shore, and the South Shore is unique. At AirGreen, we put our know-how and experience at the service of our clients to offer customized solutions. Whether it's Tosot wall-mounted air conditioners , Fujitsu wall-mounted heat pumps , or central systems, we ensure impeccable installation, compliant with standards, and adapted to the specific needs of each space.

The steps

How it goes, from the first call to the end

The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Through the seasons

    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.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

    Useful pages for what comes next

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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).

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