Per piegare un tubo, conferire la massima rotondità possibile in modo da non danneggiare il tubo, il raggio di curvatura dovrebbe essere di 
Collegare prima il tubo del lato del gas rende il lavoro più semplice.
Il tubo di connessione è particolarmente adatto per il refrigerante R410A.
Altezza max.: A max= 10m
Se l'altezza A è maggiore di 5m, il sifone per l'olio deve essere installato ogni 5 - 7m
Lunghezza max.: B max=15m
Se la lunghezza del tubo B è maggiore di 10 m, il refrigerante deve essere caricato a 20g/m.
Usare lo stesso metodo utilizzato per l'elemento interno. Allentare le viti sulla morsettiera e inserire completamente le spine nella morsettiera, poi serrare le viti.
Inserire il cavo in base al numero di morsetto, nello stesso modo adottato per l'elemento interno.
Se il cablaggio non è corretto non si potrà avere un funzionamento corretto e ciò provocherà dei guasti al circuito di controllo.
Fissare il cavo con un gancio.
Se si utilizza un raccordo di scarico, si prega di collegarlo come nella figura. (Nota: solo per la pompa termica.)
HSU-09RD03/R2(SDB), HSU-12RD03/R2(SDB) specifications
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