Mitsubishi Heavy Industries SRC25ZMP-S Technical Manual page 39

(n) Serial signal transmission error protection
(i) Purpose:
(ii) Detail of operation:
(o) Rotor lock
(o) Rotor lock
(p) Outdoor fan motor protection
(p) Outdoor fan motor protection
(q) Outdoor fan control at low outdoor temperature
(i)
Cooling
(q) Outdoor fan control at low outdoor temperature
1) Operating conditions:
(i)
Cooling
1) Operating conditions:
2) Detail of operation:
2) Detail of operation:
a)
a)
b)
b)
c)
c)
3) Reset conditions:
a)
3) Reset conditions:
b)
a)
(ii)
Heating
b)
1) Operating conditions:
(ii) Heating
1) Operating conditions:
2) Detail of operation:
3) Reset conditions:
2) Detail of operation:
a)
3) Reset conditions:
b)
a)
(r) Refrigeration cycle system protection
b)
(i) Starting conditions
(r) Refrigeration cycle system protection
1)
When 5 minutes have elapsed after the compressor ON or the completion of the defrost control
(i) Starting conditions
2)
Other than the defrost control
1)
When 5 minutes have elapsed after the compressor ON or the completion of the defrost control
3)
When, after meeting the conditions of 1) and 2) above, the compressor speed, indoor air temperature (Th1) and indoor
2)
Other than the defrost control
heat exchanger temperature (Th2) have met the conditions in the following table for 10 (SRK45:5) minutes:
3)
When, after meeting the conditions of 1) and 2) above, the compressor speed, indoor air temperature (Th1) and indoor
Operation mode
heat exchanger temperature (Th2) have met the conditions in the following table for 5 minutes:
Cooling
Operation mode
Heating(1)
Cooling
Outdoor temperature > 10˚C
Outdoor temperature < = 10˚C
Outdoor temperature > 10˚C
Outdoor temperature < = 10˚C
Compressor speed (N)
< =
50 N
Compressor speed (N)
50 N < =
Except that the fan speed is HI in heating operation.
50 N < =
Outdoor fan
Outdoor fan
(model SRK45:0
(model SRK45:2 )
Indoor air temperature (Th1)/
Indoor air temperature (Th1)
38
- - Indoor heat exchanger temperature (Th2)
< = < =
10 Th1 40
Indoor air temperature (Th1)/
Indoor air temperature (Th1)
0 Th1 40 < = < =
Indoor heat exchanger temperature (Th2)
10 Th1 40 < = < =
'13 • SRK-T-140
)
Th1−4<Th2
Th2<Th1+6
Th1−4<Th2