Innovations SNDC is consistently developing new strategies in the HVAC sector in order to anticipate future demands and needs. Innovating, simulating and creating new original solutions is at the very core of our day-to-day work at SNDC. We dedicate almost 10% of our annual salary spend to R&D as part of a commitment to innovation supported by the filing of numerous patents. Roof-mounted air conditioner 01. Low-voltage electric solutions 02. HVAC Calculators 03. Cabin and Battery Thermal Management 04.