H57752-v00 Manuale Istruzioni VTNC - Rhoss

SECTION II: INST ALL ATION AND MAINTEN ANCE1Any suppl ement ary fan f or the suc tion of ext ernal air (to be fitt ed by t heinstaller) must be c onnect ed t o t he ter minal board in keeping wit h t hediagram below. T he fan operates in parallel to the el ectrot hermalregulation val ve, s o t hat it st ops when the val ve clos es.230V567L N 1 2541701553373641 Access connection5 External air inlet6 Air distribution in adjac ent room7 Pol yst yrene membraneII.2.4.2 External renewal airUse material s uitabl e f or operation at a constant t emperature of 60 °C.The ducts may be made from fl exible pol yester ( with a spiral st eel c ore)or corrugated alumini um, clad ext ernall y with anti-condens ation mat erial(fibreglass of 12 ÷ 25 mm thick).Once i nstallati on is c omplet ed, the unins ulat ed s urfaces of the ductsmust be covered wit h anti-condensati on ins ulati on (for exampl e,expanded neoprene of 6 mm thic k).T