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Installation of a Fujitsu Halcyon HFI MultiZone Heat Pump in Chomedey

AirGreen installs a Fujitsu Halcyon HFI MultiZone heat pump in Chomedey: exterior installation on an anti-vibration support, well-maintained paths, four-season comfort and professional HVAC maintenance.

By AirGreen Climatisation & Chauffage Admin8 min read
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Installation of a Fujitsu Halcyon HFI MultiZone Heat Pump in Chomedey
Installation of a Fujitsu Halcyon HFI MultiZone Heat Pump in Chomedey
The full story

The article, chapter by chapter

Four-season comfort in a Laval condo: a MultiZone installation designed for silence, efficiency and co-ownership

Located in the heart of Chomedey (Laval) , this project has a clear objective: to offer stable and economical comfort in a condo with a balcony, without compromising aesthetics or co-ownership rules. At AirGreen , we recommend HVAC solutions adapted to urban buildings. Here, the Fujitsu Halcyon HFI MultiZone heat pump stands out as a coherent choice: proven efficiency, discreet operation, zone flexibility and perfect integration into a brick environment with a tiled balcony.


Context: one condo, several comfort zones

The owner wants to air condition and heat the main living areas— the living room open to the kitchen and the master bedroom —with the option of adding a third zone later. In a condominium building, the priorities are:

  • Silence on the balcony and inside, so as not to disturb the neighbors and respect the regulations.

  • Energy efficiency in summer and winter to reduce operating costs.

  • Clean integration of refrigeration and electrical paths, with an HVAC installation that blends in with the building's brick facade .

  • Respect for mechanical clearances and air circulation, essential for the longevity of the equipment.


The equipment selected: Fujitsu Halcyon HFI MultiZone

We are installing a MultiZone heat pump from Fujitsu 's Halcyon HFI range. Key points:

  • Typical capacities of 18,000 to 24,000 BTU for the selected MultiZone outdoor unit (sizing adjusted after load calculations).

  • High seasonal efficiencies : a competitive SEER for summer air conditioning, and an HSPF2 allowing significant heating savings during the Laval winter.

  • Cold weather performance down to -25°C , highly sought after for Greater Montreal .

  • Compatibility with several types of indoor units: wall heads , cassettes or floor consoles , which allows each zone to be adapted to its use.

  • Reduced noise level on the condenser and evaporator sides, ideal for co-ownership.

Expected result: consistent comfort, fine modulation of flow rates, and stable cycles that protect the energy bill.


Outdoor installation: stability, silence and easy maintenance

The outdoor unit is placed on a raised galvanized steel support , cushioned by anti-vibration pads . This configuration provides several benefits:

  • Clearance under the equipment to drain defrost water in winter and facilitate cleaning;

  • Reduction of vibrations transmitted to the balcony slab;

  • Easy access for periodic maintenance (cleaning coils, inspecting connections).

We respect the lateral and frontal clearances provided by the manufacturer for good airflow and avoid nearby obstacles (railings, perpendicular walls, sliding doors). The passage of the refrigeration lines is done through the brick wall with a waterproof drilling , caulked and capped on the outside for a clean and durable finish.


Refrigeration path and condensate management: cleanliness and reliability

The route of insulated copper pipes and communication cables is short and direct from the balcony to the rooms served. In a condo, this minimizes:

  • Pressure losses (better efficiency).

  • The risks of fluid noise (whistling) in lightweight partitions.

  • Visual impact inside and out.

Condensate management : the wall-mounted head on the living room side benefits from a discreet gravity drain , while the bedroom – far from the load-bearing wall – incorporates a small soundproofed lifting pump , installed in a formwork accessible for annual maintenance. This configuration guarantees safe drainage without impact on common areas or infiltration.


Electricity and compliance

The outdoor unit is powered via a dedicated circuit with a circuit breaker sized according to the nameplate and a nearby service switch . We install a matching electrical trunking for neat integration into the brick wall. The communication and power connections for the indoor heads follow the same route to reduce drilling and simplify maintenance .


Commissioning steps

  1. Deep vacuum on the refrigeration lines to the threshold recommended by the manufacturer, then leak test .

  2. Checking loads (adjustment as needed according to actual lengths, in accordance with Fujitsu tables).

  3. Configuration of remote controls and testing of modes (cooling, heating, dehumidification, ventilation).

  4. Functional measurements : blown temperatures, intensities, communication statuses, parasitic noises.

  5. Provision of a user guide and HVAC maintenance advice adapted to living in a condominium.


Constraints addressed and solutions applied

Tiled balcony and limited space

  • Choice of a raised support with a reduced footprint, without intrusive anchoring, to preserve the waterproofing of the balcony.

  • Orientation of the blower vent and distances respected to prevent recycling of hot/cold air and limit fogging on the sliding door.

Brick facade

  • Limited drilling and clean sealing; UV and frost resistant caps and capping .

  • Careful path to avoid altering the aesthetics of the facade visible from the street.

Co-ownership regulations

  • Technical file submitted to the union: product sheet , noise levels , clearances , illustration of the implementation plan .

  • Annual preventive maintenance commitment to maintain performance and control noise.


Observed results

  • Rapid cooling of the living room-kitchen during hot weather, with modulated airflow to avoid direct drafts.

  • Stable heating during the off-season and in winter, particularly appreciated in the bedroom where the night-time setting is maintained without over-oscillations.

  • Low exterior noise : the condenser, mounted on shock absorbers, remains discreet on the balcony.

  • Controlled consumption thanks to the inverter and the good power/needs match.


HVAC Maintenance and Longevity

To maintain performance:

  • Clean the filters of the interior heads every 2 to 3 months during periods of intensive use.

  • Gentle washing of the outdoor coil in spring and fall, checking the condensate drains .

  • Annual inspection by AirGreen: pressures, currents, connections, condition of insulation and capping, updating of parameters if necessary.

Regular maintenance prevents overconsumption, extends the life of the compressor and reduces the risk of abnormal noise.


Grants and Eligibility

Heat pumps in this range, with their certified performance and cold resistance, are generally eligible for programs in effect in Quebec. We assist our clients in preparing proof of installation , AHRI numbers , and required supporting documents . Our team also explains how priority heating use can maximize energy savings and strengthen the case.


Practical advice for condominiums in Laval, Montreal and the South/North Shore

  • Anticipate routes : the shorter and more direct the lines, the better the yields and discretion.

  • Consider defrosting : provide a winter water drain (not harmful to neighbors under the balcony). If necessary, add a retention tray with a directed outlet.

  • Choose units with low noise levels and anti-vibration mounts .

  • Validate the union regulations : color of the capping, position of the condenser, intervention times.

  • Schedule maintenance upon installation to protect the warranty and performance season after season.


Why AirGreen

We carry out HVAC installations throughout Greater Montreal , with particular attention to technical details and the real constraints of co-ownerships: access, noise, aesthetics, internal rules. Our value: certified technicians , clear planning , reachable after-sales service , and honest advice on the equipment that suits your home, not the other way around.


Conclusion

This Fujitsu Halcyon HFI MultiZone heat pump installation in Chomedey illustrates the AirGreen approach: precise sizing, clean installation on a balcony , controlled refrigeration paths, adapted condensate management and compliance with co-ownership rules. The result combines comfort , silence and energy savings . For a similar project in Laval , Montreal , Longueuil , on the North Shore or South Shore , our team guides you from the study to commissioning, then ensures HVAC maintenance for the sustainability of your investment.

Your numbers

The job tools

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.

    The steps

    How the job unfolds

    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.
    The tour

    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.

    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.

    At your place

    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.

    0 / 6 checked
    Maintenance

    Good habits, once the unit is in place

    Six simple habits that keep the unit going. Your list stays on this device.

    0 / 6 checked
    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.
    For your project

    The right pages, at the right time

    True or false

    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.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    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.

    Could this job help a neighbour?

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    An on-site estimate, the right capacity, the right equipment.

    The on-site estimate is free and the quote follows within 24 hours.

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
    • EstimateOn site, free
    • QuoteWithin 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).

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