(n) Serial signal transmission error protection
(i)
(i)
(ii)
Purpose
(ii) Detail of operation
(o) Rotor lock
(p) Outdoor fan motor protection
(q) Outdoor fan control at low outdoor temperature
Cooling
1) Operating conditions
(r) Refrigeration cycle system protection
(i) Starting conditions
2)
Detail of operation
3) Reset conditions
Heating
1) Operating conditions
2) Detail of operation
3) Reset conditions
Outdoor air temperature > 10˚C
Outdoor air temperature
<
=
10˚C
Outdoor fan
a)
-
b)
a)
b)
a)
b)
1)
2)
c)
When 5 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 satisfied , the compressor stops.
Error stop occurs when the compressor has stopped 3 times within 60 minutes.
3)
When, after satisfying the conditions of 1) and 2) above, the compressor speed, indoor temperature (Th1) and indoor
heat exchanger temperature (Th2) have satisfied the conditions in the following table for 5 minutes.
Compressor speed (N)Operation mode
Cooling
Heating
(1)
Indoor temperature (Th1)
Th1−4<Th2
Indoor temperature (Th1)/
Indoor heat exchanger temperature (Th2)
Th2<Th1+6
50 N
<
=
10 Th1 40
<
=
<
=
0 Th1 40
<
=
<
=
50 N
<
=
Note (1) Except that the fan speed is HI in heating operation.
(models SRK50, 60 : 4°C)
min
-1
21°C-38°C
0°C
(models SRK50, 60 : 6°C)
(models SRK20, 25, 35 : TH3 ; models SRK50, 60 : TH2)
(models SRK20, 25, 35 : TH2 ; models SRK50, 60 : TH1)
(models SRK20, 25, 35 : TH2 ; models SRK50, 60 : TH1)
(models SRK20, 25, 35 : TH2 ; models SRK50, 60 : TH1)
(models SRK20, 25, 35 : TH3 ; models SRK50, 60 : TH2)
(models SRK20, 25, 35 : TH3 ; models SRK50, 60 : TH2)
(models SRK20, 25, 35 : TH3 ; models SRK50, 60 : TH2)
-2°C
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