-
34
-
'19 • SCM-SM-276
'09•SRK-DB-087D
(b) Frost prevention control
(i) Operating conditions
(ii) Detail of anti-frost operation
(iii) Reset conditions
Indoor heat exchanger
temperature (ºC)
2.5
5
8
0 rps
(c) Cooling overload protective control
(i) Operating conditions:
(ii) Detail of operation
(iii) Reset conditions
(d) Cooling high pressure control
(i) Purpose:
(ii) Detector:
(iii) Detail of operation:
53
58
60
Outdoor heat exchanger temperature (°C)
8rps
(1)
8rps
(1)
0rps
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
lower limit
speed 30 rps
(Example) Fuzzy
Indoor heat exchanger
temperature
Item
5°C or lower
2.5°C or lower
Compressor command speed
Indoor fan
Outdoor fan
4-way valve
Item
SRK63, 71, 80ZM-S
Outdoor air temperature
Lower limit speed
Model
1)
2)
1)
1)
2)
more, with the compressor running, the lower limit
The lower limit of compressor command speed is set to 30 or 40 rps and even if the calculated result becomes lower than
that after fuzzy calculation, the speed is kept to 30 or 40 rps. However, when the thermo OFF, the speed is reduced
to 0 rps.
60
60
20
8
40
41
46
47
ON1
OFF
ON2
Outdoor air temperature (°C)
2)
Reduce
speed
(Command speed)
Compressor
speed
Reduced by 4 rps at each 20 seconds
'09•SRK-DB-087D
(b) Frost prevention control
(i) Operating conditions
(ii) Detail of anti-frost operation
(iii) Reset conditions
Indoor heat exchanger
temperature (ºC)
2.5
5
8
0 rps
(c) Cooling overload protective control
(i) Operating conditions:
(ii) Detail of operation
(iii) Reset conditions
(d) Cooling high pressure control
(i) Purpose:
(ii) Detector:
(iii) Detail of operation:
53
58
60
Outdoor heat exchanger temperature (°C)
8rps
(1)
8rps
(1)
0rps
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
After lapse of 30 sec. or over
(3)
lower limit
speed 30 rps
(Example) Fuzzy
Indoor heat exchanger
temperature
Item
5°C or lower
2.5°C or lower
Compressor command speed
Indoor fan
Outdoor fan
4-way valve
Item
SRK63, 71, 80ZM-S
Outdoor air temperature
Lower limit speed
Model
1)
2)
1)
1)
2)
more, with the compressor running, the lower limit
The lower limit of compressor command speed is set to 30 or 40 rps and even if the calculated result becomes lower than
that after fuzzy calculation, the speed is kept to 30 or 40 rps. However, when the thermo OFF, the speed is reduced
to 0 rps.
60
60
20
8
40
41
46
47
ON1
OFF
ON2
Outdoor air temperature (°C)
2)
Reduce
speed
(Command speed)
Compressor
speed
Reduced by 4 rps at each 20 seconds
(n) Serial signal transmission error protection
(i) Purpose
(ii) Detail of operation
(o) Rotor lock
(p) Outdoor fan motor protection
(q) Outdoor fan control at low outdoor temperature
Cooling
1)
(i)
Operating conditions
2) Detail of operation
Outdoor temperature > 10(0)˚C
Outdoor temperature <= 10(0)˚C
Outdoor fan
Outdoor temperature > 16(0)˚C
Outdoor temperature <= 16(0)˚C
Outdoor fan
a)
b)
c)
40
40
40
-
40
min
-1
Lower limit fan speed
Note (1) Values in ( ) are for the model SRK63.
(c) Indoor fan motor protection
-
min
-1
(ii)
(s) Refrigeration cycle system protection
(i) Starting conditions
3) Reset conditions
Heating
1) Operating conditions
2) Detail of operation
3) Reset conditions
a)
b)
a)
b)
1)
2)
When A minutes have elapsed after the compressor ON or the completion of the defrost operation
Other than the defrost operation
(ii) Contents of control
1)
(iii) Reset condition
When the compressor has been turned OFF
2)
When the conditions of (i) above are met, the compressor stops.
Error stop occurs when the compressor has stopped C times within 60 minutes.
3)
When, after satisfying the conditions of 1) and 2) above, the compressor speed, indoor air temperature (Th1) and
indoor heat exchanger temperature (Th2) have satisfied the conditions in the following table for B minutes:
5 (model 63 : 3
䉝
）
(model 63 : 3
䉝
）
2
at each 20 seconds
5
24
.
(t)
Service valve (gas side) closing operation
(i) Starting conditions
1) Operation mode : Heating
2) Compressor conditions : OFF
Ѝ
ON
(ii) Contents control
If the output current of inverter exceeds the specifications, it makes the compressor stopping.
(iii) Anomalous stop control
If the inverter output current value excceds the setting value within 80 seconds the compressor stops.
8th (model71 : 7th)
Note (1) Except that the fan speed is HI in heating operation and silent mode control.
A
C
B
(A)
3
3
3
1
1
4
5
2
8
5
Cooling
Model 63
Model 63
Model 71, 80
Model 71, 80
Heating
(1)
Th1−4<Th2
Th2<Th1+6
40
䍺
N
40
䍺
N (TH2
䍻䠌䉝㻕
40
䍺
N (TH2
䍻䠌䉝㻕
60
䍺
N (TH2
䠘䠌䉝㻕
40
䍺
N (TH2
䠘䠌䉝㻕
10
䍺
Th1
䍺
40
0
䍺
Th1
䍺
40
40
䍺
N
Compressor speed (N)
(Compressor speed (N))
Indoor heat exchanger temperature (Th2)
Room temperature (Th1)/
Room temperature (Th1)
Operation mode
(16) Protective 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) The compressor is ON.
2) Detected value of humidity is 68% or higher.
(ii) Contents of operation
1) Air capacity control
Model
Item
SRK71ZR-W
Indoor fan
AUTO, HI, MED, LO, ULO
Adaptable to compressor speed
2) When this control has continued for more than 30 minutes continuously, the following wind direction control
is performed.
a)
When the vertical wind direction is set at other than the vertical swing, the flaps change to the horizontal position.
b)
When the horizontal wind direction is set at other than the horizontal swing, the louver changes to the ver-
tical position.
(iii) Reset conditions
When any of followings is satisfied.
1) Detected value of humidity is less than 63%.
2) The compressor is OFF.
Summary of Contents for SRK60ZSX-W
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