Hitachi YUTAKI Series Instruction And Operation Manual page 79

WORKING RANGE
4.2.2 DHW

For YUTAKI (S /S COMBI)
DHW water
temperature
(ºC)
DHW water
temperature
(ºC)
?
N O T E
The heat pump can produce domestic hot water at 57ºC as a maximum (53ºC for 2.0/2.5/3.0HP) by itself, but HITACHI recommends to set the
temperature of the tank by heat pump only up to 55ºC (50ºC for 2.0/2.5/3.0HP) and keep Thpoff default value. In case of higher setting, the tank's heater
must be used to reach the setting temperature (enabled by optional function).

For YUTAKI M
DHW water
temperature
(ºC)
67 PMML0335A rev.1 - 04/2016
(2.0-3.0)HP
(4.0-10.0)HP
(*)
Ambient
temperature
(ºC(DB))
Continuous working range.
Outdoor unit operation is possible, but the
capacity is not guaranteed. Indoor unit and back-
up heater are operating.
Only back-up heater. (No outdoor unit operation).
Ambient
temperature
(ºC(DB))
Continuous working range.
Outdoor unit operation is possible, but the capacity
is not guaranteed. Indoor unit and back-up heater
are operating.
Only back-up heater. (No outdoor unit operation).
(*): Limit for 3HP
Ambient
temperature
(ºC(DB))