Hitachi FSG1 Series Technical Catalogue page 196

AVAILABLE OPTIONAL FUNCTIONS
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b. Press the "TIME ~" switch or the "TIME }" switch,
the optional function item is changed as shown below.
When pressing the
"TIME }" switch
>
When pressing the
"TIME ~" switch
c. Press the "CHECK" switch, and the setting condition
of the optional function is changed as shown below.
When pressing the
"CHECK" switch
...
> >! >" -" -# .
00 01 ...
§
Selection of other Indoor Unit
At the optional setting mode, press the "TEMP ~" switch
or the "TEMP }", the condition of the remote control
switch is changed so that the Indoor Unit can be selected
to set the optionsl function described in the item (3)
§
Return from Optional Function Setting Mode
Press the "RESET" switch, the optional function setting is
memorized and the mode is returned to the normal
condition