'20 • SR-SM-285
-
6
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(b) Sleep timer operation
Pressing the SLEEP button causes the temperature to be controlled with respect to the set temperature.
(8) Timer operation
(a) Comfortable timer setting (ON timer)
(c) OFF timer operation
The Off timer can be set at a specific time (in 10-minute units) within a 24-hour period.
If the timer is set at ON when the operation select switch is set at the cooling or heating, or the cooling or heating in auto
mode operation is selected, the comfortable timer starts and determines the starting time of next operation based on the initial
value of 15 minutes and the relationship between the indoor temperature at the setting time (temperature of room tempera-
ture sensor) and the setting temperature.
(9) Silent mode
As “Silent mode start” signal is received from the wireless remote control, it operates by dropping the outdoor fan tap and the
compressor command speed.
(10) Night setback
As “Night setback” signal is received from the wireless remote control, the heating operation starts with the setting temperature
at 10
℃
.
Outdoor fan tap
(Upper limit)
Compressor command
speed (Upper limit)
Cooling Heating Cooling Heating
SRR25ZS-W
SRR35ZS-W
4th speed
37 rps
4th speed
46 rps
5th speed
46 rps
4th speed
56 rps
(11) Outline of heating operation
(d) Weekly timer operation
Timer operation (ON timer, OFF timer) can be set up to 4 times a day for each weekday.
ON
OFF
ON
ON
ON
OFF
(few minutes ON)
ON
ON(HOT KEEP)
OFF
OFF
(3 minutes ON)
OFF
OFF
Thermostat ON
Thermostat OFF
Failure
Heating
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
(b) Details of control at each operation mode (pattern)
(i) Fuzzy operation
Deviation between the indoor temperature setting correction temperature and the return air temperature is calcu-
lated in accordance with the fuzzy rule, and used for control of the air capacity and the compressor speed.
When the defrosting, protection device, etc. is actuated, operation is performed in the corresponding mode.
(ii) Hot keep operation
If the hot keep operation is selected during the heating operation, the indoor blower is controlled based on the
temperature of the indoor heat exchanger (Th2) to prevent blowing of cool wind.
However, if the fan speed setting is HI and room temperature is 19ºC or higher, this control is not executed.
30-115rps
30-115rps
30-62rps
30-46rps
SRR35ZS-W
30-102rps
30-102rps
30-58rps
30-76rps
30-72rps
30-42rps
SRR25ZS-W
Model
Fan speed
Auto
MED
HI
ULO
LO
(a) Operation of major functional components in heating mode
Summary of Contents for SRR25ZS-W
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