Indoor Units - Mitsubishi Heavy Industries SRK25ZJ-S Technical Manual

seconds times
3) Reset conditions:
a)
b)
(e) Heating high pressure control
1) Purpose:
2) Detector:
3) Detail of operation:
(Example) Fuzzy
Temperature list
RPSmin < 50
50 < = RPSmin < 91
91 < = RPSmin < 97
97 < = RPSmin < 100
100 < = RPSmin < 115
115 < = RPSmin
(f) Heating overload protective control
1) Indoor unit side
a) Operating conditions :
b) Detail of operation :
c) Reset conditions :
2) Outdoor unit side
a) Operating conditions :
b) Detail of operation
i) Taking the upper limit of compressor command speed range at 60 rps, if the output speed obtained with the fuzzy
calculation exceeds the upper limit, the upper limit value is maintained.
The lower limit of compressor command speed is set to 40 rps and even if the calculated result becomes lower than
ii)
that after fuzzy calculation, the speed is kept to 40 rps. However, when the thermo becomes OFF, the speed is
reduced to 0 prs.
iii)
iv)
c) Reset conditions:
• Model 50
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.
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
When the outdoor air temperature (TH2) is 22ºC or higher continues for 30 seconds while
the compressor command speed other than 0 rps.
rps.
Normal operation
21
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 30 rps
B C
B C
Protective
control
22
52
- -
'10 • SRK-T-098
(2)
8rps
(2)
0rps
D
'09•SRK-DB-087D
D
.