Hitachi YUTAKI Series - User Interface; Display; Controls

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User interface
SMGB0066 rev.0 - 12/2009
Controller pack
Service Manual
4

 
ThedisplayoftheSystemControllerissimpletounderstandandhasextrasegmentstoindicatetheoperatingmode,failures
and status.
Frost Protection Symbol
Displayed when the frost protection feature is active.
Heat Pump Symbol
Indicates that the Heat Pump is switched on by the controller.
Boiler Symbol
Displayed when the boiler (bi-valent system) is switched on to provide additional heating.
Electric Heater Symbol
Displayed when the electric heater (mono-energetic system) is switched on to provide additional heating.
Tariff/Timer Symbol
Displayed when external tariff/timer blocking function is activated.
DHW Symbol
Displayed when the system is heating the DHW storage tank.
Pump I Symbol
Displayed when the primary boiler pump (bi-valent systems) is running.
Pump II Symbol
Displayed when the secondary pump (if connected) is running.
Fault Symbol
Displayed in case of a fault. The display will show the text “FAUL” and the fault number.
 
TheSystemControllerhasasimplevebuttonsinterfacewithanuserfriendlydisplay.
Select button
• Usedtoleavesettingmode.
• Usedtocancelanewsettingandretainoldvalue.
Increase button
• Usedtoselectthenextparameter.
• Usedtoincreasethevalueoftheselectedparameter.
Decrease button
• Usedtoselectthepreviousparameter.
• Usetodecreasethevalueoftheselectedparameter.