A well-designed condenser on the balcony/terrace for four-season comfort
At AirGreen , we have just installed a Sharp Eco Inverter wall-mounted heat pump for a co-owner in Verdun . The goal: stable, quiet, and energy-efficient heating and air conditioning , without encroaching on the outdoor living space. The chosen layout places the condenser on a raised aluminum support near a patio door, with a dedicated disconnect , compact refrigeration path, and secure gravity drain . The result: a clean, durable, and easy-to-maintain integration, perfectly suited to the realities of Verdun buildings.
Choosing the Sharp Eco Inverter range: efficiency and reliability
The Sharp Eco Inverter with R-32 refrigerant is distinguished by:
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a finely modulated inverter compressor that maintains the temperature smoothly,
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high seasonal yields promoting energy savings ,
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discreet operation both inside and outside,
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proven electronics and advanced air filtration on the indoor unit side (proprietary air treatment technology),
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a design thought for cold climates and winter defrost cycles.
This solution is ideal for open-plan condo areas; depending on the envelope and sunlight, we generally recommend 12,000 to 18,000 BTUs after thermal sizing .
Architectural context and implementation strategy
The outdoor space consists of a tiled terrace adjoining a patio door . The main constraints:
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maintain a safe passage in front of the door;
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protect equipment from water accumulation and blown snow ;
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limit vibration transmission to the structure and the neighboring unit.
Our technical response:
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Raised support made of aluminium profiles (H-stand) placed on distribution pads; blue anti-vibration pads under the fixings to break structural noise;
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Clearances respected for air intake and discharge; fan orientation away from outdoor living areas;
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Wall-mounted disconnect , UV-resistant wiring and validated grounding ;
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Short path refrigerant lines , harmonized UV capping and continuous insulation;
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Gravity- oriented drain with controlled slope and outlet outside the passage area.
This configuration guarantees easy maintenance (defrosting in winter, cleaning of exchangers in spring) and increased durability of the equipment.
Key steps in AirGreen installation
1) Study and preparation
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Sizing based on the volume to be treated, solar gains and occupancy.
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Checking the circuit breaker size and cable section ; choosing the disconnect location in accordance with RBQ/CSA standards.
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Identification of crossings to avoid conduits and load-bearing elements.
2) Mechanical installation of the condenser
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Installation of the raised support and level control;
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Sharp condenser mount with galvanized/stainless steel hardware ;
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Added silent blocks and torque tightening to prevent loosening.
3) Refrigeration connections and sealing
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Bending of copper tubes with respected radii;
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Flares tightened with a dynamometer ;
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Nitrogen test (pressurization + bubble test) to detect the slightest micro-leak;
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Deep vacuum to micron stability to remove moisture and non-condensables;
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Opening of service valves , control of electrical and thermodynamic values (intensities, reference superheating/subcooling).
4) Condensate management
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Test the drain with clear water before closing the covers;
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Continuous slope check and discharge point;
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Heating cable option available if using air conditioning on cool mid-season nights.
5) Finishes and conformity
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UV-resistant capping , butyl + polyurethane seals on penetrations;
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Disconnect labeling and maintenance instructions given to the customer;
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Area cleaning and compliance photos included in the file.
Indoor installation: even diffusion and silence
The wall-mounted head is placed high up , free of obstacles, to exploit the Coanda effect : the jet runs along the ceiling, mixes with the ambient air and descends gently, which eliminates stratification . The orientation of the flaps avoids direct flows towards the TV/dining area and limits the air movements felt . When switched on, the temperature quickly reaches the setpoint and then the device modulates at low speed , almost imperceptible.
Results: comfort, savings and discreet integration
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Thermal stability in all seasons with flexible cycles.
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Lower bill vs. direct electric heating and non-inverter air conditioning.
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Noise level contained thanks to silent blocks and compressor/fan modulation.
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Neat aesthetics : the whole thing fits in with the plaster and the blue frame of the patio door without hindering traffic flow.
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Easy maintenance : free access to the condenser, removable cover, preserved clearances.
HVAC Use and Maintenance Tips
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Winter : Maintain a stable temperature (20–21°C). Avoid repeated variations of ±3°C which degrade performance.
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Summer : aim for 23–24°C and activate Dry mode on humid days to gain comfort with controlled consumption.
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Filters : clean every 4 to 8 weeks during intensive use.
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Exterior : Keep 30–60 cm free around the condenser; clear snow without accumulating salt at the base of the support.
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Annual AirGreen visit : electrical check, pressure meter , cleaning of exchangers, drain test, verification of seals.
Grants, Guarantees and Compliance
High-efficiency wall-mounted heat pumps like the Sharp Eco Inverter are generally eligible for assistance programs in Quebec, depending on performance and configuration. We support:
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eligibility verification ,
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the constitution of the file (serial numbers, photos, detailed invoices),
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submission and follow-up.
All our work complies with RBQ and CSA requirements. AirGreen's workmanship is backed by a clear warranty ; maintenance plans are available to ensure long-term performance.
AirGreen: your HVAC partner in Montreal, Laval, Longueuil, South Shore and North Shore
From Verdun to the Plateau , from Laval to the South Shore , we design and install wall-mounted heat pumps , central systems and interior solutions (cassette, ducted, console) adapted to condos, plexes and houses. Each project is sized , planned and controlled to deliver performance , discretion and sustainable savings .