Hitachi RAC-8CH9 Service Manual page 55

Wireless remote controller
1) When the "Automatic"
Q20
operation mode
selected, "Automatic"
does not change by
pressing the fan speed
select button.
2) The room temperature
setting is not displayed.
3) Pressing the
temperature control 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 the
room temperature control
button " V " causes no
transmission.
pressing " " causes no
transmission either.
The timer cannot be set.
Q22
The current time disap-
Q23
pears soon.
is
room
At "32",
1) When the operation mode
A20
is "Automatic", the fan
speed is automatically
fixed to "Automatic".
2) At an "Automatic"
operation, the
temperature setting is not
displayed.
The room temperature is
automatically
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) At an "Automatic"
operation, the
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.
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
soon and the timer settting
indication takes
precedence.
– 58 –
The room
sensing thermistor in the
indoor unit detects the room
temperature and, according
to the particular temperature,
automatically
"Cooling" or "Dehumidifying"
room
operation.
The value indicated not at an
"Automatic" but manual
set as operation is not the actual
room temperature but the
room temperature setting.
room
When setting the current time,
its indication blinks for
a approximately 3 minutes.
temperature
performs