Source google image: https://une-lingerie.com/wp-content/uploads/2018/11/branchement-electrique-vmc-elegant-branchement-electrique-vmc-double-flux-elegant-cc2a2blage-et-of-branchement-electrique-vmc.jpg
Schema branchement electrique vmc double flux
Source google image: https://une-lingerie.com/wp-content/uploads/2018/11/branchement-electrique-vmc-elegant-branchement-electrique-vmc-double-flux-elegant-cc2a2blage-et-of-branchement-electrique-vmc.jpg