-
36
-
'19 • PAC-SM-312
'09•SRK-DB-087D
(b)
(i)
(ii)
(iii)
(c)
(d)
27.5
25.5
18.0
18
30
(13)
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
12-120rps
12-120rps
12-100rps
12-
76rps
SRK71ZR-W
Model
Fan speed
AUTO
MED
HI
LO
12-50rps
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
(13)
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
12-120rps
12-120rps
12-100rps
12-
76rps
SRK71ZR-W
Model
Fan speed
AUTO
MED
HI
LO
12-50rps
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.
(16) Protection control function
(a) Dew prevention control [Cooling]: Prevents dewing on the indoor unit.
(i) Operating conditions
When the following conditions have been satisfied for more than 30 minutes after starting operation.
1) Compressor’s command speed is 28 rps or higher.
2) Detected value of humidity is 68% or higher.
Cooling
SP
Indoor air
temperature (˚C)
SP: Setting temperarure
Heating
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
