Client context: optimizing comfort in a plex apartment with a narrow balcony
In Villeray–Saint-Michel–Parc-Extension , brick buildings with rear balconies present a particular challenge for any HVAC installation . In this case, our client wanted to replace an energy-intensive portable air conditioner with a Midea28 wall-mounted heat pump , capable of providing efficient heating down to -30°C and quiet cooling in the summer.
The limited space of the balcony required a secure and stable installation, while preserving access to the windows and circulation. We chose a support on a metal platform with anti-vibration pads, allowing the condenser to be placed on the balcony floor without drilling the slab and without encroaching on the guardrail.
Technical advantages of the Midea28 model
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R-454B technology : new generation refrigerant with low environmental impact.
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Operating range : efficient heating down to −30°C , suitable for Montreal's harsh winters.
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Available powers : 9,000 to 33,000 BTU, we select the capacity according to the actual thermal load of the home.
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Compact and quiet : a relevant choice for adjoining balconies in plexes where noise can quickly become a source of conflict.
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Grant eligibility : this model meets the criteria of energy assistance programs (Hydro-Québec, LogisVert) for customers in Montreal, Laval, Longueuil, North Shore and South Shore.
Key steps for balcony installation
Analysis and preparation
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Checking the strength of the balcony and clearances from the railings.
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Study of the refrigeration path to the indoor unit, with discreet wall outlet.
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Electrical validation for a dedicated 240 V circuit with compliant circuit breaker.
Condenser installation
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Installation of the Midea28 on a stable metal platform , with level adjustment to optimize condensate drainage.
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Addition of anti-vibration pads to limit noise transmission to the balcony floor.
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Remote positioning of windows to avoid noise and thermal pollution.
Refrigeration and electrical connections
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Optimized line length : short route through the brick, insulated ducts with painted capping to match the facade.
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Gravity drainage of condensates to the outside, without a mechanical pump, limiting future maintenance.
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Electrical connection in an exterior service box , respecting clearances and grounding.
Commissioning and checks
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Deep vacuum, leak testing, refrigerant adjustment according to line length.
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Pressure, temperature and defrost tests.
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Noise check in normal operation and in intensive mode.
Why this facility meets the customer's needs
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Stable interior comfort : efficient heating even in very cold weather, gentle air conditioning in summer.
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Space optimization : installation designed for a narrow balcony without hindering circulation.
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Sustainability : choosing a new generation heat pump, less polluting and compatible with subsidies.
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Silence : thoughtful positioning and anti-vibration to minimize noise impact in a high-density residential environment.
AirGreen Tips for HVAC Installations in Urban Plexiglas
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Respect your neighbors : choose a quiet heat pump and orient the condenser to limit transmitted noise.
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Access safety : avoid obstructing the passage to windows or emergency stairs.
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Simplified maintenance : provide sufficient clearance for annual cleaning and filter inspection.
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Grant eligibility : always check that performance and refrigerant criteria are met before purchasing.
In summary : this installation of a wall-mounted Midea28 on a balcony in Villeray–Saint-Michel–Parc-Extension illustrates AirGreen's expertise in HVAC solutions adapted to Montreal plexes . Between energy efficiency, four-season comfort and discreet integration, the customer benefits from a sustainable and subsidized system.