Mitsubishi SRC92ZL-S Technical Manual & Parts List page 41

(f) Heating high pressure control
(i) Purpose:
(ii) Detector:
Detail of operation:
(iii)
(Example) Fuzzy
Model 50
Temperature list
RPSmin < 40
40 < = RPSmin < 80
RPSmin < 90
80 < = RPSmin < 90
90 < RPSmin < 108
90 < = RPSmin < 102
108 < = RPSmin
102 < = RPSmin
(g) Heating overload protective control
Indoor unit side
(i)
1) Operating conditions :
2) Detail of operation :
3) Reset conditions :
(ii) Outdoor unit side
1) Operating conditions :
2) Detail of operation
Taking the upper limit of compressor command speed range at 65 rps or 35 rps, if the output speed obtained with
a)
the fuzzy calculation exceeds the upper limit, the upper limit value is maintained.
b) The lower limit of compressor command speed is set to 20 rps or 25 rps and even if the calculated result becomes
lower than that after fuzzy calculation, the speed is kept to 20 rps or 25 rps. However, when the thermo becomes
OFF, the speed is reduced to 0 prs.
c)
20 rps or 25 rps.
3) Reset conditions:
a) Operating conditions :
b) Detail of operation
Taking the upper limit of compressor command speed range at 78 rps, if the output speed obtained with the fuzzy
i)
calculation exceeds the upper limit, the upper limit value is maintained.
ii) The lower limit of compressor command speed is set to 30 rps and even if the calculated result becomes lower than
that after fuzzy calculation, the speed is kept to 30 rps. However, when the thermo becomes OFF, the speed is
reduced to 0 prs.
iii)
After lapse of 20 sec. or over
After lapse of 20 sec. or over
After lapse of 20 sec. or over
A
Indoor heat exchanger temperature(°C)
A B
49 53
A
53 57
45 52
53 ~ 47 57 ~ 51
45 ~ 43 52 ~ 45
47 ~ 41 51 ~ 45
45 ~ 43 52 ~ 45
41 45
When the outdoor air temperature (TH3) is 13ºC or 17ºC or higher continues for 30 seconds
while the compressor command speed other than 0 rps.
Upper 65 rps
Lower 20 rps
OFF
11 13
Outdoor air temperature (°C)
When the outdoor air temperature (TH2) is 11ºC or higher continues for 30 seconds while
the compressor command speed other than 0 rps.
4rps 8rps
(1)
(3)
4rps
(3) (1)
lower limit
(3)
speed 20 rps
C
B
C
55
B C
59
57
59 ~ 53
57 ~ 48
53 ~ 47
57 ~ 48
47
3
3
3
Upper 35 rps
Lower 25 rps
16 17

- -
'12 • SRK-T-130
(2)
8rps
(2)
0rps
D
'09•SRK-DB-087D
D
58
D
62
58
56.5
51
51.5
51
10
.