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The interventions described here focus exclusively on new systems, chosen according to building characteristics, usage profiles, thermal loads, and energy efficiency and operational objectives. We integrate wall-mounted heat pumps and wall-mounted air conditioners for targeted zones, central heat pumps and central air conditioners for full distribution, as well as multizone systems when multiple sectors need to be controlled independently; some architectures also utilize air-to-water systems when a hydronic approach proves relevant. In commercial spaces or independently controlled premises, PTACs / VTACs respond to a unit-by-unit management logic, and ventilation (air exchangers, humidity management, fresh air intake) is integrated to stabilize air quality and hygrometric balance. This adaptation concerns both houses and multi-unit buildings, commercial spaces, and mixed-use buildings, relying on:

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  Building configuration (envelope, volumes, zoning, possible distribution)
  
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  Occupancy profile (schedules, density, critical zones, comfort expectations)
  
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  Energy objectives (modulation, seasonal efficiency, operating costs)

The durability of a new installation depends on compliant execution, rigorous coordination, and documented technical transfer. Commissioning includes functional checks, safety validation, parameter adjustment, and recording of settings, followed by a structured handover with documentation and operational benchmarks. AirGreen also supports clients in understanding applicable subsidy programs from Hydro-Québec and federal programs, without presenting them as guaranteed and without positioning itself as an outsourced administration. In Richelieu, this disciplined approach is particularly relevant to ensure operational stability and consistent energy efficiency despite the diversity of buildings and uses:

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  Compliance and coordination (connections, clearances, evacuations, protections)
  
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  Handover file (diagrams, parameters, references, commissioning proofs)
  
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  Long-term performance (regulation, humidity, modulation, seasonal efficiency)
  
  A new installation conducted according to these requirements provides a reliable, stable, and durable technical foundation for projects in Richelieu.