Four-season comfort, discreet integration and careful finishing for a Montreal plex living room.
A project designed for real use: silence, aesthetics and reliability
In Rosemont–La Petite-Patrie , we were commissioned to install a recent Sharp – Eco Inverter R-32 wall-mounted heat pump (ZU1 series) . The client's goal: a quiet , economical and minimally intrusive system in a living room with a standard ceiling, with a short path to the rear balcony. Our approach emphasizes architectural integration , cold performance and simplified HVAC maintenance .
Why the Sharp ZU1 range in this urban context
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Cooling performance adapted to Montreal winters thanks to inverter modulation and R-32 refrigerant (low GWP).
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Air quality enhanced by Sharp's own Plasmacluster technology.
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Reduced noise level : essential in co-ownerships and in plexes with adjoining partitions.
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Fine regulation : stable temperature, fewer short cycles, energy savings .
Site analysis: a corner wall head, very short connections
The main room has a load-bearing wall opening onto the exterior, ideal for direct passage . The interior head is positioned in a high corner , at the prescribed distance from the ceiling for optimal airflow. We ensure:
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Sufficient top and side clearances to facilitate service.
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Diffusion that avoids direct blowing onto the sofa and the passageway.
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Aesthetics : interior chute cover painted white, aligned with the moldings.
The drilling is unique, slightly inclined outwards for the evacuation of condensate by gravity . This choice avoids the use of a pump, limits possible noise and makes the whole thing reliable in winter.
Visible installation details and key technical points
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Discreet interior cladding (white) following the corner of the room: the refrigeration connections (liquid and gas), the communication cable and the drain run to the right to join the exterior wall.
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Bending radii respected and separate tube insulation to eliminate thermal bridges and condensation .
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Raised exterior aluminum support (balcony side) fitted with anti-vibration pads : vibrations and sound transmission significantly reduced for the neighborhood.
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Gravity drain flow , controlled slope, frost-protected outlet.
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Short total length of connections, which maximizes efficiency in heating and air conditioning mode.
AirGreen Process: From Clean Drilling to Expert Commissioning
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Protection of the work area and laser tracing of the axes.
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Drilling at the correct angle; inserting a sleeve to protect the insulation and facilitate possible replacement.
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Flaring and collars beaten to standard torques, brazing if necessary depending on the configuration.
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Nitrogen pressurization ; pressurization and leak detection using a micromanometer.
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Deep vacuum (≤ 500 microns), stabilization and opening of the valves.
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Power up with dedicated circuit; polarity/ground check; external disconnect compliant when required.
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Blowing/return temperature measurements , pressure and current control.
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Customer training : filter cleaning, operating instructions, advice for extreme cold.
Comfort achieved: smooth responsiveness and controlled silence
The Sharp wall-mounted fan delivers laminar airflow without harsh drafts. In heating mode, the inverter quickly stabilizes the room while reducing consumption. Night mode reduces fan speeds and compressor frequencies for virtually inaudible operation , appreciated in a dense urban environment.
Safety, Compliance and Power Supply
The device is connected to a dedicated circuit protected by a circuit breaker sized according to the nameplate. Connections are torqued, wiring identified and grounding verified. Our practices comply with RBQ/CCQ rules, and service clearances are maintained around the external disconnect.
HVAC Maintenance: Maintaining Real-World Performance
We recommend an annual visit including:
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Cleaning the filters and inspecting the internal exchanger.
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Gentle rinsing of the outdoor unit in spring to remove dust and salt.
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Checking operating pressures, amperage and terminal tightening.
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Drain check (slope, defrosting, absence of obstruction).
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Review of Inverter parameters and reminder of good usage practices.
Regular maintenance ensures SEER/HSPF are maintained and extends service life.
Tips for using this type of interior installation
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Maintain a stable setpoint : the Inverter excels in moderate continuous operation.
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Use automatic scanning to homogenize the temperature.
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Do not place anything under the head (tall furniture, bookcases) which could disrupt the air intake .
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In very cold weather, leave the device running to avoid frequent restarts.
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Schedule a maintenance reminder in the spring.
Grants and administrative support
Depending on the power and cold performance, a recent R-32 wall-mounted heat pump may be eligible for certain financial assistance . We support our customers in Montreal, Laval, Longueuil, North Shore and South Shore : recording of serial numbers , installation photos , detailed invoicing and submission of files.
Why entrust your HVAC installation to AirGreen?
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Mastery of urban configurations : corner rooms, short passages, narrow balconies.
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Clean finishes : matching trunking, clean holes, aesthetic integration.
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Careful selection of recognized brands (Sharp, Fujitsu, Gree, Midea, etc.) with structured after-sales service .
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Local team available for HVAC maintenance and seasonal optimization.
Installation sheet — Sharp (ZU1 range), plex salon in Rosemont
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Type : single-zone wall-mounted heat pump , R-32 .
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Interior layout : in high corner , ceiling clearance respected.
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Route : wall-to-wall drilling; short insulated connections ; white interior capping .
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Condensate : gravity towards the outside; slope validated.
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Outdoor unit : raised aluminum support + anti-vibration pads ; compliant blowing clearances.
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Electrical : dedicated circuit, external disconnect according to configuration, grounding verified.
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Commissioning : nitrogen, deep vacuum, performance measurements, customer training.
In summary
This HVAC installation in Rosemont–La Petite-Patrie illustrates our signature: discreet integration of the Sharp wall head, optimized refrigeration path , reliable gravity drain and anti-vibration external support . The result: quiet comfort and real savings , with an AirGreen service present in Montreal , Laval , Longueuil , on the North Shore and the South Shore .