Hitachi YUTAKI S COMBI Series User Manual

8.6.2.6 DHW
Available if Controller type (LCDM)= “Unit” or “Unit + Room”.
• Status
• Mode
• Control
• Setting Temperature
• Maximum Setting T
• Differential T
• HP OFF Differential T
• HP ON Differential T
• Maximum Time
• Cycle Time
• El.Heater Wait.Time
• Space Priority Status
• Space Priority T
• Anti Legionella
• Performance Test
REF Access Description
Default
Value
Range Steps Units Application
Notes
DHW S SC S80 M
DHWs Status Disabled Disabled / Enabled 1 - ○ ○ ○ ○ (*1)
DHWm Mode Standard Standard / High D. 1 - ○ ○ ○ ○ (*2)
DHWr Control H.Eff H.eff / H.Speed - - ○ ○ ○ ○ (*3)
TDHWS Setting Temperature 45 30 ~ (TDHWmax) 1 ºC ○ ○ ○ ○ (*2)(*)
TDHWmax Maximum Setting T 55 40~A 1 ºC ○ ○ ○ ○ (*2)
TDHWON Differential Temp 6 2~15 1 ºC ○ ○ ○ ○ (*4)
THPOFF HP OFF Differential T 5 3~10 1 ºC ○ ○ ○ ○ (*5)
THPON HP ON Differential T 10 5~30 1 ºC ○ ○ ○ ○ (*2)
TDHWMAXtime Maximum Time 45 OFF 5~250 5 min ○ ○ ○ ○ (*6)
DHWCDHW Cycle Time 1 0~24 1 hour ○ ○ ○ ○ (*7)
DHWEH El.Heater Wait Time 45 OFF- 1~60 1 min ○ ○ ○ ○ (*5)
SHPTs Space Priority Status Disabled Disabled / Enabled 1 - ○ ○ ○ ○ (*7)
SHPT Space Priority T -5 -20~0 1 ºC ○ ○ ○ ○ (*8)
DHWLEG Anti Legionella - - - - ○ ○ ○ ○ (*2)
? NOTE
• (*1): “Enabled” if default in case of YUTAKI S COMBI or S80.
• (*2): If Status (DHWs)= “Enabled”.
• (*3): If Status (DHWs)= “Enabled” and Mode (DHWm)= “Standard”, it is forced to “H.Speed” when Mode (DHWm)= “High.D”.
• (*4): If Status (DHWs)= “Enabled” and Mode (DHWm)= “High.D”.
• (*5): If Status (DHWs)= “Enabled” and DSW4-3: ON.
• (*6): If Status (DHWs)= “Enabled” and Mode (DHWm)= “High D.” and Control (DHWr)= “H.Speed”.
• (*7): If Status (DHWs)= “Enabled” and Mode (DHWm)= “Standard”.
• (*8): If Status (DHWs)= “Enabled” and Mode (DHWm)= “Standard” and Space priority status (SHPTs)= “Enabled”.
• (*) Refer to the table:
Model
YUTAKI S & COMBI YUTAKI S80 YUTAKI M
(2.0-3.0)HP REST (4.0-6.0)HP 3HP REST
A 50 ºC (1) 55 ºC (1) 75 ºC (2) 50 ºC (1) 55 ºC (2)
- (1): 75ºC when DHW tank’s heater is enabled (DSW4-3: ON) or Combination mode (BOCM)= “Parallel” and DHW by boiler (BODHW)
“Enabled” in “Boiler combination” option of the “Complementary heating” menu.
- (2): If the conditions of (1) are not satised and the R-134a compressor is disabled (DSW4-1: ON) the setting must be 55 ºC.
UNIT CONTROLLER
PMML0335A rev.1 - 04/2016
150

Hitachi YUTAKI S COMBI Series Specifications

General

Type	Air-to-Water Heat Pump
Energy Efficiency Class (Cooling)	A++
Refrigerant	R32
Operating Temperature Range (Heating)	-20°C to 35°C
Energy Efficiency Class (Heating)	A+++
Integrated DHW Tank	190 liters
Dimensions (Indoor Unit)	Varies by model
Dimensions (Outdoor Unit)	Varies by model
Weight (Indoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model
Operating Temperature Range (Cooling)	+10°C to +46°C