The installations described here concern new systems , chosen and configured according to the building's specific characteristics (building envelope, volumes, zoning), occupancy profile , thermal loads , and operational objectives. Depending on the situation, we integrate wall-mounted heat pumps and air conditioners for targeted zones, central heat pumps and air conditioners for complete distribution, and multi-zone systems when several spaces need to be controlled independently. Some configurations also favor air-to-water systems to meet specific humidity requirements. For standalone units in light hospitality establishments, offices, or small premises, the PTAC/VTAC allows for direct management per space, and ventilation (air exchangers, humidity control, fresh air supply) is integrated when air quality and humidity balance are critical. This approach applies equally to houses , multi-unit residential buildings , commercial spaces , and mixed-use buildings , with selection guided by:
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Zoning and uses (critical rooms, schedules, occupancy density)
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Loads and constraints (heat losses, solar gains, internal heat gains)
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Energy objectives (efficiency, modulation, operating costs)