Hitachi RAC-18GH5, Service Manual

Page: 52 / 61

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Q20
Wireless remote controller
T h e r o o m t e m p e r a t u r e
sensing thermistor in the
indoor unit detects the room
temperature and, according
to the particular temperature,
a u t o m a t i c a l l y p e r f o r m s
“Cooling” or “Dehumidifying”
operation.
The value indicated not at
an “Automatic” but manual
operation is not the actual
room temperature but the
room temperature setting.
When the room temperature
setting is “16”, pressing the
room temperature control
button “ V ” causes no
transmission. At “32”, pressing
“ ” causes no transmission
either.
Q21
The room temperature is
settable within the range of
16 - 32 and not beyond.
A21
The timer cannot be set.
Q22
Is the current time set?
The timer cannot be set
unless the clock is adjusted
correctly.
A22
V
The current time disappears
soon.
Q23
The current time disappears
s o o n a n d t h e t i m e r
settting indication takes a
precedence.
A23
When setting the current
time, its indication blinks for
approximately 3 minutes.
1) When the operation mode
is “Automatic”, the fan
speed is automatically
fi xed to “Automatic”.
2) A t a n “ A u t o m a t i c ”
o p e r a t i o n , t h e r o o m
temperature setting is
not displayed.
The room temperature
is automatically set as
follows.
At cooling
Set at 27°C.
At dehumidifying
Set to a temperature
slightly lower than the
room temperature.
At heating
Set at 23°C.
3) A t a n “ A u t o m a t i c ”
o p e r a t i o n , t h e r o o m
temperature setting is
not displayed.
However, every pressing
“ ” or “ V ” button changes
1°C within the range of:
27±3°C when cooling,
23±3°C when heating.
A20
V
1) When the “Automatic”
o p e r a t i o n m o d e i s
selected, “Automatic”
does not change by
pressing the fan speed
select button.
2) The room temperature
setting is not displayed.
3) P r e s s i n g t h e r o o m
t e m p e r a t u r e c o n t r o l
button develops transmit
mark “ ” and sounds
a receive sound but
does not display the room
temperature setting.