-
18
-
27.5
25.5
19.5
18
30
4.10 Outline of cooling operation
(1) Operation of major functional components in Cooling mode
(2)
Detail of control in each mode (Pattern)
(a)
Fuzzy operation
During the fuzzy operation, the air flow and the inverter speed are controlled by calculating the difference between the room
temperature setting correction temperature and the suction air temperature.
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
(few minutes ON)
OFF
(few minutes ON)
ON
ON
ON
Thermostat ON
Thermostat OFF
Failure
Cooling
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
20~64rps
20~68rps
15~100rps
20~64rps
20~68rps
20~98rps
20~98rps
15~100rps
20~48rps
20~52rps
20~74rps
15~62rps
20~32rps
20~38rps
20~46rps
15~30rps
SRK20ZG-S
Model
Fan speed
SRK25ZG-S
SRK35ZG-S
SRK50ZG-S
Auto
MED
HI
LO
4.11 Outline of automatic operation
(1)
Determination of operation mode
The unit checks the room temperature and the outdoor air temperature, determines the operation mode, and then begins in the
automatic operation.
Heating
Dehumidifying
Cooling
Room temperature (˚C)
Outdoor temperature (˚C)
(2)
The unit checks the temperature every hour after the start of operation and, if the result of check is not same as the previous
operation mode, changes the operation mode.
(3)
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 dehumidifying operation, the unit is operated in the previous operation mode.
(4)
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.
Signals of wireless remote control (Display)
–6
–5
–4
–3
–2
–1
±
0
+1
+2
+3
+4
+5
+6
Setting
Cooling
18
19
20
21
22
23
24
25
26
27
28
29
30
temperature
Dehumidifying
18
19
20
21
22
23
24
25
26
27
28
29
30
Heating
20
21
22
23
24
25
26
27
28
29
30
31
32
