Hitachi RAS-18LH2 Service Manual page 53

Wireless remote controller
1) When the "Automatic"
Q20
o p e r a t i o n m o d e
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.
When the room temperature
Q21
setting is "16", pressing
t h e r o o m t e m p e r a t u r e
control button "V" causes
no transmission. At "32",
pressing " " causes no
transmission either.
The timer cannot be set.
Q22
The current time disappears
Q23
soon.
1) When the operation mode
A20
i s
2) A t
3) A t
The room temperature is
A21
settable within the range of
16 - 32 and not beyond.
Is the current time set?
A22
The timer cannot be set
unless the clock is adjusted
correctly.
The current time disappears
A23
s o o n
settting indication takes a
precedence.
is "Automatic", the fan
speed is automatically
fi xed to "Automatic".
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.
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.
a n d t h e t i m e r
– 58 –
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 setting the current
time, its indication blinks for
approximately 3 minutes.