-
0
-
'15 • SRK-T-175
(r) Outdoor fan control at overload conditions.
(i) Cooling
1) Operating conditions:
When the outdoor air temperature (TH2) is 41
℃
(model 63:38
℃
) or higher continues
for 30 seconds while the compressor ON.
2) Detail of operation:
The outdoor fan is stepped up by 3 speed step. (Upper limit 8th speed).
3) Reset conditions:
When either of the fllowing conditions is satisfied.
a) The outdoor air temperature (TH2) is 40
℃
(model 63:37
℃
) or lower.
b) The compressor command speed 0 rps.
(ii) Heating
1) Operating conditions:
When the outdoor heat exchaner temperature (TH1) is 13
℃
or higher continues for 30
seconds while the compressor ON.
2) Detail of operation:
The outdoor fan is lowered by 3 speed step. (Lower limit 2nd speed).
3) Reset conditions:
When either of the fllowing conditions is satisfied.
a) The outdoor heat exchaner temperature (TH1) is 10
℃
or lower.
b) The compressor command speed 0 rps.
'09•SRK-DB-087D
(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˚C
Outdoor temperature <= 10˚C
Outdoor fan
Outdoor temperature > 16˚C
Outdoor temperature <= 16˚C
Outdoor fan
a)
(ii)
(s) Refrigeration cycle system protection
(i) Starting conditions
3) Reset conditions:
Heating
1) Operating conditions:
2) Detail of operation:
3) Reset conditions:
b)
a)
b)
a)
b)
1)
2)
c)
When A minutes have elapsed after the compressor ON or the completion of the defrost control
Other than the defrost control
(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 3 times within 60 minutes.
3)
When, after meeting 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 5 minutes:
3
2
at each 20 seconds
5
40
40
40
-
40
24
.
min
-1
Lower limit fan speed
(t) Service valve (gas side) closing operation
(i) Starting conditions
1) Operation mode : Heating
2) Compressor conditions : OFF
ψ
ON
(ii) Contents control
If the output current of inverter exceeds the specifications, it makes the compressor stopping.
(iii) Anomalous stop control
1) If the inverter output current value excceds the setting value within 80 seconds the compressor stops.
2) After 3 minutes delay. the compressor restarts, but if this anomaly occurs 2 times within 20 minutes after
this initial detection.
8th (model71 : 7th)
Note (1) Except that the fan speed is HI in heating operation and silent mode control.
Compressor speed (N)
Operation mode
A
5
8
5
Cooling
Model 63
Model 71, 80
Heating
(1)
Room temperature (Th1)
Th1−4<Th2
Room temperature (Th1)/
Indoor heat exchanger temperature (Th2)
Th2<Th1+6
40
㻡
N
40
㻡
N (TH2
㻢䋰㷄㪀
60
㻡
N (TH2
䋼䋰㷄㪀
10
㻡
Th1
㻡
40
0
㻡
Th1
㻡
40
40
㻡
N
