-
33
-
'19 • SCM-SM-276
(14) Outline of dehumidifying (DRY) operation
The purpose is "Dehumidification", and not to control the humidity to the target condition.
Indoor/outdoor unit control the operation condition to reduce the humidity, and also prevent over cooling.
(i)
Indoor unit fan speed and compressor are controlled by the area which is selected by the temperature difference.
Indoor unit fan speed
Area
D
C
B
A
Me speed
Indoor unit
fan speed
ULo(Lo) speed
STOP
Limited
（
Lower than
normal cooling operation
）
Compressor
Limited
speed
Minimum
（
Lower than the speed in”Area A”
）
STOP
Set temperature
Difference between set temperature and return temperature
When the outside temperature and room temperature is low for cooling operation, indoor unit can not operate in cooling, and
dehumidifying. In this case, the units operate in heating to rise the room temperature and after that start dehumidifying operation.
(a) Purpose of DRY mode
(b) Outline of control
(ii)
The indoor unit check the current area by every 5 minutes, and operate by the next checking.
(c) Other
'09•SRK-DB-087D
(b)
(i)
(ii)
(iii)
(c)
(d)
27.
5
25.5
18.0
18
30
(15)
ࠉ
Outline of cooling operation
(a)
ࠉ
Operation of major functional components in cooling mode
(b) Detail of control in each mode (Pattern)
1) Fuzzy operation
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
(few minutes ON)
OFF
(few minutes ON)
ON
ON
OFF
Thermostat ON
Thermostat OFF
Failure
Cooling
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
20-98rps
20-98rps
20-64rps
20-
46rps
SRK80ZR-W
20-76rps
20-76rps
20-56rps
20-40rps
SRK71ZR-W
12-106rps
12-106rps
12-68rps
12-50rps
SRK63ZR-W
Model
Fan speed
AUTO
MED
HI
LO
20-26rps
20-26rps
12-32rps
ULO
(15)
ࠉ
Outline of automatic operation
(a) Determination of operation mode
Heating
Dehumidifying
Cooling
Indoor air temperature (˚C)
Outdoor air temperature (˚C)
Signals of wireless remote control (Display)
-6
-5
+6
+5
+4
+3
+2
+1
±
0
-1
-2
-3
-4
18
18
19
19
30
30
29
29
28
28
27
27
26
26
25
25
24
24
23
23
22
22
21
21
20
20
Setting
temperature
Cooling
Heating
A
When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending on
the difference between the setting temperature and the indoor air temperature.
When the operation mode has been judged following the change of setting temperature with the remote control, the hourly
judgment of operation mode is cancelled.
'09•SRK-DB-087D
(b)
(i)
(ii)
(iii)
(c)
(d)
27.
5
25.5
18.0
18
30
(15)
ࠉ
Outline of cooling operation
(a)
ࠉ
Operation of major functional components in cooling mode
(b) Detail of control in each mode (Pattern)
1) Fuzzy operation
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
(few minutes ON)
OFF
(few minutes ON)
ON
ON
OFF
Thermostat ON
Thermostat OFF
Failure
Cooling
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
20-98rps
20-98rps
20-64rps
20-
46rps
SRK80ZR-W
20-76rps
20-76rps
20-56rps
20-40rps
SRK71ZR-W
12-106rps
12-106rps
12-68rps
12-50rps
SRK63ZR-W
Model
Fan speed
AUTO
MED
HI
LO
20-26rps
20-26rps
12-32rps
ULO
(15)
ࠉ
Outline of automatic operation
(a) Determination of operation mode
Heating
Dehumidifying
Cooling
Indoor air temperature (˚C)
Outdoor air temperature (˚C)
Signals of wireless remote control (Display)
-6
-5
+6
+5
+4
+3
+2
+1
±
0
-1
-2
-3
-4
18
18
19
19
30
30
29
29
28
28
27
27
26
26
25
25
24
24
23
23
22
22
21
21
20
20
Setting
temperature
Cooling
Heating
A
When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending on
the difference between the setting temperature and the indoor air temperature.
When the operation mode has been judged following the change of setting temperature with the remote control, the hourly
judgment of operation mode is cancelled.
Heating
Cooling
SP: Setting temperature
SP
Indoor air
temperature (˚C)
28
Outdoor air temperature (˚C)
(b) Operation mode is changes when keep cooling and heating thermostat off 20 minutes and be satisfied with following
conditions.
If the setting temperature is changed with the remote control, the operation mode is judged immediately.
(c) When the unit is started again within one hour after the stop of automatic operation or when the automatic operation is
selected during heating, cooling or DRY mode, the unit is operated in the previous operation mode.
(d) Setting temperature can be adjusted within the following range. There is the relationship as shown below between the signals
of the wireless remote control and the setting temperature.
Heating
SP: Setting temperature
Indoor air temperature
−
Setting temperature (˚C)
Keep operation
mode
Cooling
SP
＋
1
SP
−
1
※
It can not be changed to heating mode if outdoor air temperature is 28
℃
or higher.
Operation mode is determined by indoor air temperature and outdoor air temperature as following.
(a) Determination of operation mode
Содержание SRK60ZSX-W
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