Mitsubishi SRK25ZSP-W Service Manual page 12

Notes (1) When the outdoor heat exchanger temperature is in the range of B-C ºC, the speed is reduced by 8 rps at each 20 seconds.
(2) When the temperature is C ºC or higher, the compressor is stopped.
(3) When the outdoor heat exchanger temperature is in the range of A-B ºC, if the compressor speed is been maintained and the operation has
continued for more than 20 seconds at the same speed, it returns to the normal cooling operation.
●
Temperature list
Outdoor air temperature > = 32 ºC
Outdoor air temperature < 32 ºC
(f) Cooling low outdoor air temperature protective control
(i) Operating conditions
(e) Cooling low outdoor air temperature protective control
(i) Operating conditions
When the outdoor air temperature (TH2) is 22°C or lower continues for 20 seconds while the compressor speed is other than 0 rps.
(ii) Detail of operation
(ii) Detail of operation:
1) It controls the upper and lower limit values for the compressor speed according to the following table.
1)
2) It checks the outdoor temperature (TH2) once every hour to judge the operation range. than 50 〔
speed is
2)
Range B
SRK25, 35
SRK45
(3) Values in 〔 〕 are for the model DXK15.
ON Upper 3
Lower 3
Upper limit 50 rps
ON Upper limit 50 rps
ON
Lower limit 50 44 rps
Lower limit 50 44 rps
E F
Outdoor air temperature (°C)
E F
E F
Outdoor air temperature (°C )
Outdoor air temperature.(°C )
First time
First time
First time
After the
second times
After the
After the
second times
second times
(iii) Reset conditions
(iii) Reset conditions
(iii) Reset conditions:
When either of the following condition is satisfied.
1)
1) The outdoor air temperature (TH2) is D°C or higher.
1)
2)
2) The compressor speed is 0 rps.
2)
(f ) Heating high pressure control
(f)
Heating high pressure control
(i) Purpose
(g) Heating high pressure control
(i) Purpose:
(i) Purpose
(ii) Detector:
(ii) Detector
(iii) Detail of operation:
(ii) Detector
(Example) Fuzzy
(iii) Detail of operation
(iii) Detail of operation
(Example)
Compressor
(Example) Fuzzy
speed
When the indoor heat exchanger temperature is in the range of A-B °C, if the compressor speed is been maintained and the operation has continued for more
Temperature list
than 20 seconds at the same speed, it returns to the normal heating operation.
fan
Models DXK09.12
Temperature list
Models SRK20, 25, 35
RPSmin < 50
Temperature list
50 < = RPSmin < 91
Models DXK09.12
<
SRK25, 35
A
53
40
44 〕 <44> (30) rps, the speed is kept to 50
Compressor speed: Upper/lower limit (rps)
Lower 1
Upper 1 Lower 2
Range A
30 Release 60
A
27 Release 60
C
Upper 2
ON
Lower 2
Upper limit 50 rps
ON Upper limit 50 rps
ON
Lower limit 44 rps
Lower limit 44 rps ON Upper 1
Lower 1
ON Upper limit 60 rps
Upper limit 60 rps
ON
Lower limit 30 27 rps
Lower limit 30 rps
A B C D
A B C D
A B C D
(Models SRK20-35)
(Models SRK25, 35)
(Models DXK09, 12)
Outdoor air temperature (˚C)
Outdoor air temperature (˚C)
Outdoor air temperature (˚C)
E F A B
E F A B
E F A B
After lapse of 10 sec. or over
After lapse of 10 sec. or over
After lapse of 10 sec. or over
After lapse of 20 sec. or over
After lapse of 20 sec. or over
After lapse of 10 sec. or over
After lapse of 20 sec. or over
After lapse of 10 sec. or over
A
After lapse of 10 sec. or over
Indoor heat exchanger temperature(°C)
A
Indoor heat exchanger temperature(°C)
A
Indoor heat exchanger temperature(°C)
10
speed
10
A
fan speed
A
B C
58 63
43 46
〔 44 〕
〔 44 〕 <44> (30) rps. However, when the thermo OFF, the
Upper 2 Lower 3 Upper 3
44 50 50 50
B
44 50 44 50
D
OFF
OFF
OFF
Indoor air temperature (
C D
C D
C D
First time
First time
First time
After the
second times
After the
After the
second times
second times
4rps 8rps
(3) (1)
4rps
(3) (1)
lower limit
(3) 4rps
(3) (1)
speed 30 rps
4rps
(1)
(3)
4rps
(3) (1)
lower limit
(3)
speed 30(23) rps
4rps
(3) (1)
B C
lower limit
(3)
speed 30(35) rps
B C
B C
B - C
C - D
-
-
fan
-
10
- -
B C
52 54
54.5
B C
'18 • SRK-SM-259
SRK45
A B
'09•SRK-DB-087D
48 53
53 58
Range A
Range A
Range B
Range B
24 26
24 26
)
Indoor air temperature ( )
(Model SRK50)
, E, F (Model SRK45)
, E, F (Model DXK15)
Outdoor air temperature (˚C)
Outdoor air temperature (˚C)
Outdoor air temperature (˚C)
A B C
E F A
E F A
9 11
0 2 9
0
2 9
16 19
5 7 16
5 7 16
(2)
8rps
(2)
8rps
(2)
0rps
8rps
(2)
8rps
(2)
Note (1) Value in ( ) are for the model SRK50.
8rps
(2)
D 0rps
0rps
D
D
D
fan
55
D
C
55
63
'09•SRK-DB-087D
D
B C D
B C D
11 22 25
11 22 25
19 25 28
19 25 28