2. Features and benets
TCGB0075 rev.0 - 11/2012
22
2.2.2  Water outlet temperature up to 80 ºC
Water outlet temperature up to 80 ºC even in very low ambient temperature conditions of -20 (ºC WB). 
Ambient temperature 
(ºC WB)
Water outlet 
temperature 
(ºC)
YUTAKI S80 is the best solution to replace existing boilers which work on systems with old radiators and weak isolation, 
or for new installations with very high capacity requirements. For new installations with low capacity requirements the best 
solution could be YUTAKI S unit.
By this way, HITACHI covers the main heating requirements of the market.
Ambient temperature 
(ºC WB)
Water outlet 
temperature 
(ºC)
Selectable 
water rules
Old house  
(old radiators and 
weak isolation)
New 
house