Basic Mode - Hitachi RAS-30CH6 Service Manual

BASIC MODE

MODEL RAS-30CH6/RAC-30CH6
Operation mode
No. Fan
Control function
Start/stop button,
1
basic mode
OFF timer
Timer
2 ON timer
operation
→
OFF ON
timer
• "HI", "MED", or "LO" operation is
• Operation in the previous
Automatic executed according to the thermostat
circulation mode
signal. (Refer to "Thermostat operation".)
HI • Operation in "HI" mode • Same as on the left.
Circulation
3
mode
MED • Operation in "MED" mode • Same as on the left.
LO • Operation in "LO" mode • Same as on the left.
• Only circulation
with cut velocity is
executed, independent
(1) In case of "Automatic" mode
of the thermostat
signal.
+3
+2
(1) Strong
+1
Set temperature
-1
-2
Start/stop button
-3
Fan relay H
Start/stop button
Stick relay Fan relay H
Fan relay L
Thermostat operation
Fan relay S
→
H HI
Power relay 2 sec
→
Stick relay
L MED
External fan relay
→
S LO
4
Operation lamp
• The power relay is
delayed by 2 seconds
from the start of
thermostat operation.
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).
Cooling Sensor dehumidification
Start/stop button
Operation lamp
Start/stop button
Reservation
Cancel
Operation lamp
Timer lamp
Timer memory
(OFF timer during stop) (Cancel)
Start/stop button
Reservation
Cancel
Operation lamp
Timer lamp
Timer memory
(ON timer during operation) (Cancel)
(OFF (ON OFF timer)
Start/stop button
Reservation
Cancel
Operation lamp
Timer lamp
Timer memory
PM1:00 PM3:00 PM5:00
PM1:00 PM3:00 PM5:00
• "LO" and "Stop" are repeated according to the thermostat
signal, independent of the setting.
(1) When the set temperature is lower than the room
temperature.
+3
+2
(Set temperature) +
+1
(Temperature shift amount)
-1
-2
-3
30 sec 30 sec
Start/stop button
Fan relay S 5 sec 5 sec
Power relay 2 sec
2 sec 2 sec
Stick relay
External fan relay
Operation lamp
2 sec 2 sec
S S S
• The min. ON time of the power relay is 3 minutes, and the
H S L S L H S
min. OFF time also is 3 minutes.
• The indoor fan is not delayed with operation start by start/
S L L
stop button ON.
• The indoor fan is delayed by 5 sec with operation start
by thermostat operation.
(2) Set temperature is higher than room temperature.
Notes:
Set temperature
• Forced operation by start/stop
0.66 deg -1
button ON is executed even
0.33 deg -2
-3
with thermostat OFF.
-4
• The room temperature 30 sec
30 sec 30 sec
Start/stop button
after operation start, minus
Fan Speed S
5 sec
0.66 deg, becomes the set
2 sec 2 sec
Power relay temperature.
2 sec 2 sec
• When the room temperature
Stick relay
External fan relay is 16°C or lower, 16°C
becomes the set temperature.
Operation lamp • The other operations are the
same as for (1).
Heating
(Change of the reservation time)
(Change of the reservation time)
(ON OFF timer during operation) ON timer)
(OFF ON timer during stop)
PM1:00 PM3:00 PM5:00 PM1:00 PM3:00 PM5:00
• "HI", "MED", "LO", and "Stop" are repeated according to the thermostat
signal and time.
• The "Automatic" speed mode
• "HI", "MED", "LO", and "Stop" are repeated according to the thermostat
for each operation mode is used
signal and time.
independent of the setting.
• "MED", "LO", and "Stop" are repeated according to the thermostat signal ("Week" at the time of "Sensor
and time. dehumidification".)
• "LO" and "Stop" are repeated according to the thermostat signal and time.
• The operation mode at the
Example for "HI" circulation mode
start of operation differs as
shown below according to
the room temperature.
+3
+2
+1
Set temperature
-1
-2
-3
-4
15 sec
30 sec 15 sec 30 sec 30 sec
15 sec 30 sec
30 sec
30 sec 30 sec 30 sec
Start/stop switch
Fan relay H
Fan relay L
Fan relay S 2 sec
Power relay 2 sec 2 sec 2 sec
Stick relay
• A shift is not accepted at the
External fan relay
time of operation start.
Reversing valve relay
• There is no switching between
modes after start of operation.
Pilot lamp
• When the operation is started
Hot keep lamp
again within 20 min. after
stop with the start/stop button,
L H H
S S L
S
H S
operation will be executed in
S L H
S L
the previous mode.
B
• The operation details are the
same as for each operation mode.
Air-blow mode (A) (B)
• The set temperature is set with
H L H
the room temperature
L L L
adjustment button. Correction
by V, ±3°C is possible with.
S S L
At this time, the operation mode
Automatic L XL
judgement temperature also is
Notes:
shifted at the same time.
• The min. ON time of the power relay is 3 minutes, and the min. OFF time
However, correction is possible
also is 3 minutes.
only in cooling operation mode,
• In automatic circulation mode, "HI" in section (B) occurs only the first time. but not in "Sensor dehumidifica-
tion" mode.
Automatic
5
PD CUT 1
PD CUT 2
PD CUT 3
FAN RELAY H
FAN RELAY L
POWER RELAY
STICK RELAY
EXTERNAL FAN RELAY
REVERSING VALVE RELAY
T 1
Low-temperature input
6
Fan relay H
Power relay
Stick relay
Cooling The set temperature
External fan relay
shall be 27°C.
Reversing fan relay
Sensor The set temperature
dehumidi- shall be 2 degrees
Timer relay
fication below the room
temperature at the
start of operation.
Heating The set temperature
shall be 23°C +
temperature shift
amount.
TEMPERATURE OF INDOOR HEAT
EXCHANGER THERMISTOR
T
8
T
9
T
6
T 7
T 5
T
3
T
4
AIR BLOW CHANGE TO "H" FORCILY WHEN ENTERING "PD CUT 2"
AIR BLOW CAN BE CHANGED BY REMOTE CONTROL AFTER TEMP. T .
7
AIR BLOW RETURNS TO THE SET SPEED AT T .
5
Indoor heat exchanger
• All relays are stopped by low-
thermistor temperature
temperature input.
• Not accepted during hot keep,
during compressor stop, during
defrosting and during forced
3 minutes.
• Accepted only during heating
operation.
• Recovery at the time of stop by
low-temperature input is reset
recovery.
• The timer lamp flashes at the
time of stop.
(0.5) (0.5) (0.5) (0.5) (0.5)(0.5)(0.5)(0.5) 1 sec 1 sec
(1 sec)
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