Unit Control 
 
★
At the function setting page with the unit turned off, by touching ―
Fast hot water
‖, the display panel 
will go to the corresponding setting page, where desired option can be selected. Then by pressing ―
OK
‖ 
this setting will be saved and the display panel will back to the function setting page. 
[Notes]
:
 
●This  function  can  be  set  to  ―
On
‖  only  when  the  water  tank  is  available.  When  the  water  tank  is 
unavailable, this function will be reserved. 
●It will be memorized upon power failure. 
3.2.2.3 Cool + hot water 
[Operation Instructions] 
★
At the function  setting page with the unit  turned off, by touching ―
Cool + hot water
‖, the display 
panel  will  go  to  the  corresponding  setting  page,  where  desired  option  can  be  selected.  Then  by 
pressing ―
OK
‖ this setting will be saved and the display panel will back to the function setting page. 
[Notes] 
●When the water tank is unavailable, it will be reserved; when it is unavailable, the default priority will 
be given to ―
How water
‖. 
●It will be memorized upon power failure. 
3.2.2.4 Heat + hot water 
[Operation Instructions] 
★
  At the function setting page with the unit turned off, by touching ―
Heat + hot water
‖, the display panel 
will go to the corresponding setting page, where desired option can be selected. Then by pressing 
―
OK
‖ this setting will be saved and the display panel will back to the function setting page. 
[Notes] 
●When the water tank is unavailable, it will be reserved; when it is unavailable, the default priority will 
be given to ―
How water
‖. 
●It will be memorized upon power failure. 
3.2.2.5 Quiet Mode 
[Operation Instructions] 
★
  At the function setting page with the unit turned off, by touching ―
Quiet mode
‖, there will be a choice 
box, where ―Quiet mode‖ can be set to ―On‖, ―Off‖, or ―Timer‖. 
★
  When it is set to ―
Timer
‖, it is also required to set the ―
Start timer
‖ and ―
End timer
‖. Unless otherwise 
stated, otherwise time setting is all the same.   
 
Timer for Quite Mode 
★
  3. This setting will be saved by touching the corner at the upper right corner. 
[Notes] 
●It can be set under both ON and OFF statuses, but will work only when the main unit is turned on.