Hitachi RAC-18G5, Service Manual

Page: 36 / 53

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Operation mode
Control function
Cooling Sensor dehumidi  cation Circulation
1
ON / OFF switch,
basic mode
2
Timer
operation
ON timer
OFF timer
Automatic
MED
LO
HI
O
Operation in ““HI”” mode
●
Operation in ““MED”” mode
●
Operation in ““LO”” mode
●
Same as on the left.
●
Same as on the left.
●
Same as on the left.
●
Only circulation with cut velocity
is executed, independent of the
thermostat signal.
(1) Strong
3
Fan speed
mode
Thermostat operation
H A HI
M
A
MED
L
A
LO
●
The power relay is
delayed by 2 seconds
from the start of
thermostat.
(1) In case of ““Automatic”” mode
Note:
●
The min. ON time of the power relay is 3
minutes, and the min. OFF time also is
3 minutes.
(2) In other modes than ““Automatic””
Same as above (but operation is made
with the velocity set at the time of operation
start).
●
““HI””, ““MED””, or ““LO”” operation is executed
according to the thermostat signal. (Refer to
““Thermostat operation””.)
●
““LO”” and ““Stop”” are repeated according to the thermostat signal, independent
of the setting.
Notes:
●
Forced operation by ON / OFF
button ON is executed even
with thermostat OFF.
●
The room temperature 30 sec
after operation start, minus
0.66 deg, becomes the set
temperature.
●
When the room temperature
is 16°C or lower, 16°C
becomes the set temperature.
●
The other operations are the
same as for (1).
●
Repetition of ““HI”” and ““Stop”” by means of thermo signal and time.
●
Repetition of ““MED”” ““Stop”” by means of thermo signal and time.
●
Repetition of ““LO”” ““Stop”” by means of thermo signal and time.
(2) Set temperature is higher than room temperature.
(1) When the set temperature is lower than the room temperature.
4
BASIC MODE
MODEL RAS-18G5/RAC-18G5
Notes:
●
The min. ON time of the power relay is 3 minutes, and the min. OFF time
also is 3 minutes.
●
The indoor fan is not delayed with operation start by ON / OFF button.
No.
K
Both operation lamp during Sensor dehumidi  cation at
operation mode.