-
0
-
'15 • SR-T-185
(e) Heating high pressure control
(i) Purpose:
Prevents anomalous high pressure operation during heating.
(ii) Detector:
Indoor heat exchanger sensor (Th)
(iii) Detail of operation:
Notes () When the indoor heat exchanger temperature is in the range of B-C ºC, the speed is reduced by rps at each 0 seconds.
() When the indoor heat exchanger temperature is in the range of C-D ºC, the speed is reduced by rps at each 0 seconds. When the temperature is D ºC
or higher continues for minute, the compressor is stopped.
() When the indoor heat exchanger temperature is in the range of A-B ºC, if the compressor command speed is been maintained and the operation has
continued for more than 0 seconds at the same speed, it returns to the normal heating operation.
() Indoor blower retains the fan tap when it enters in the high pressure control. Outdoor blower is operated in accordance with the speed.
A
B
C
D
Indoor unit heat exchanger temperature(°C)
4rps
(1)
8rps
(2)
8rps
(2)
4rps
(1)
0rps
After lapse of 20 sec. or over
(3)
After lapse of 20 sec. or over
(3)
After lapse of 20 sec. or over
(3)
lower limit
speed 30 rps
(Example) Fuzzy
¡
Temperature list
Note () RPSmin: The lower one between the outdoor speed and the compressor command speed
Unit : ºC
(iii) Reset conditions:
When either of the following condition is satisfied
)
The outdoor air temperature (TH3) is D ˚C or higher.
)
The compressor command speed is 0 rps.
A
B
C
D
RPSmin < 50
50 <= RPSmin < 91
.
91 <= RPSmin < 97
.
-
97 <= RPSmin < 100
.
-
-
100 <= RPSmin < 115
. - 0.
-
- .
115 <= RPSmin < 120
0.
.
120 <= RPSmin
0.
.
'09•SRK-DB-087D
(g) Heating overload protective control
(i) Indoor unit side
1) Operating conditions :
2) Detail of operation :
3) Reset conditions :
(ii) Outdoor unit side
b) Detail of operation
c) Reset conditions:
1)
Operating conditions:
2)
Detail of operation:
(h) Heating low outdoor temperature protective control
3) Reset conditions:
-10
-8
-2
2
Lower limit 45 rps
Lower limit 40 rps
Normal operation
Outdoor air temperature(°C )
10
11
19
20
Normal operation
Protective control ON1
Protective control ON2
Outdoor air temperature(°C)
21
22
Normal operation
Protective
control
Outdoor air temperature(°C)
• Model 50
• Model 50
1)
ޓ
Operating conditions:
When the outdoor air temperature (TH2) is lower than 4ºC or higher continues for 30 seconds
while the compressor command speed is other than 0 rps.
2)
ޓ
Detail of operation:
The lower limit compressor command speed is change as shown in the figure belo.
Lower limit 29 rps
Normal operation
4
6
Outdoor air temperature(°C)
Model 50
A
B
C
D
RPSmin < 40
40 <= RPSmin < 80
80 <= RPSmin < 90
90 <= RPSmin < 102
102 <= RPSmin
49
53
41
53 ~ 47
47 ~ 41
53
57
45
57 ~ 51
51 ~ 45
55
59
47
59 ~ 53
53 ~ 47
58
62
51
58
51
1) Operating conditions :
When the outdoor air temperature (TH3) is 22ºC or higher continues for 30
seconds while the compressor command speed other than 0 rps.
i)
ii)
iii)
iv)
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
that after fuzzy calculation, the speed is kept to 40 rps. However, when the
thermo becomes OFF, the speed is
reduced to 0 prs.
rps.
a) Operating conditions :
b) Detail of operation
When the outdoor air temperature (TH2) is 11ºC or higher continues for 30 seconds while
the compressor command speed other than 0 rps.
i)
ii)
iii)
iv)
Taking the upper limit of compressor command speed range at 78 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 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.
rps.
.
c) Reset conditions:
.
a)
b)
30
Protective
control
NO1
NO2
Item
Compressor command speed
Low limit
30 rps
30 rps
Upper limit
78 rps
51 rps
It depends on compressor command speed
Outdoor fan speed
2nd
10
(i) Protective control
I
2
changed as shown in the figure below.
9
3
3
3
-2
3
2) Detail of operation:
Upper and lower limits of compressor speed and the outdoor unit fan speed are restricted.
3) Reset condition:
When the outdoor air temperature drops below ºC.
Compressor command speed (rps) Outdoor fan
speed
Lower limit
Upper limit
ON
0
0
nd speed
)
'09•SRK-DB-087D
(g) Heating overload protective control
(i) Indoor unit side
1) Operating conditions :
2) Detail of operation :
3) Reset conditions :
(ii) Outdoor unit side
1) Operating conditions :
2) Detail of operation
3) Reset conditions:
(i)
Operating conditions:
(ii)
Detail of operation:
(h) Heating low outdoor temperature protective control
(iii) Reset conditions:
-10
-8
-2
2
Lower limit 45 rps
Lower limit 40 rps
Normal operation
Outdoor air temperature(°C
10
11
19
20
Normal operation
Protective control ON1
Protective control ON2
Outdoor air temperature(°C)
21
22
Normal operation
Protective
control
Outdoor air temperature(°C)
• Model SRK50
• Model SRK50
• Models SRK20 ~ 35
• Models SRK20 ~ 35
(i)
ޓ
Operating conditions:
When the outdoor air temperature (TH2) is lower than 4ºC or 13ºC or higher continues for 30
seconds while the compressor command speed is other than 0 rps.
(ii)
ޓ
Detail of operation:
The lower limit compressor command speed is change as shown in the figure belo.
Lower limit 29 rps
Normal operation
4
6
Outdoor air temperature(°C)
Model SRK50
A
B
C
D
RPSmin < 40
40 <= RPSmin < 80
80 <= RPSmin < 90
90 <= RPSmin < 102
102 <= RPSmin
49
53
41
53 ~ 47
47 ~ 41
53
57
45
57 ~ 51
51 ~ 45
55
59
47
59 ~ 53
53 ~ 47
58
62
51
58
51
When the outdoor air temperature (TH2) is 22ºC or higher continues for 30 seconds while
the compressor command speed other than 0 rps.
a)
b)
c)
d)
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
that after fuzzy calculation, the speed is kept to 40 rps. However, when the
thermo OFF, the speed is reduced to
0 prs.
rps.
1) Operating conditions :
2) Detail of operation
When the outdoor air temperature (TH2) is 11ºC or higher continues for 30 seconds while
the compressor command speed other than 0 rps.
a)
b)
c)
d)
Taking the upper limit of compressor command speed range at 78 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 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 OFF, the speed is reduced
to 0 prs.
rps.
.
3) Reset conditions:
.
1)
2)
30
Protective
control
ON1
ON2
Item
Compressor command speed
Low limit
30 rps
30 rps
Upper limit
78 rps
51 rps
It depends on compressor command speed
Outdoor fan speed
2nd
10
'09•SRK-DB-087D
(g) Heating overload protective control
(i) Indoor unit side
1) Operating conditions :
2) Detail of operation :
3) Reset conditions :
(ii) Outdoor unit side
b) Detail of operation
c) Reset conditions:
1)
Operating conditions:
2)
Detail of operation:
(h) Heating low outdoor temperature protective control
3) Reset conditions:
-10
-8
-2
2
Lower limit 45 rps
Lower limit 40 rps
Normal operation
Outdoor air temperature(°C )
10
11
19
20
Normal operation
Protective control ON1
Protective control ON2
Outdoor air temperature(°C)
21
22
Normal operation
Protective
control
Outdoor air temperature(°C)
• Model 50
• Model 50
1)
ޓ
Operating conditions:
When the outdoor air temperature (TH2) is lower than 4ºC or higher continues for 30 seconds
while the compressor command speed is other than 0 rps.
2)
ޓ
Detail of operation:
The lower limit compressor command speed is change as shown in the figure belo.
Lower limit 29 rps
Normal operation
4
6
Outdoor air temperature(°C)
Model 50
A
B
C
D
RPSmin < 40
40 <= RPSmin < 80
80 <= RPSmin < 90
90 <= RPSmin < 102
102 <= RPSmin
49
53
41
53 ~ 47
47 ~ 41
53
57
45
57 ~ 51
51 ~ 45
55
59
47
59 ~ 53
53 ~ 47
58
62
51
58
51
1) Operating conditions :
When the outdoor air temperature (TH3) is 22ºC or higher continues for 30
seconds while the compressor command speed other than 0 rps.
i)
ii)
iii)
iv)
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
that after fuzzy calculation, the speed is kept to 40 rps. However, when the
thermo becomes OFF, the speed is
reduced to 0 prs.
rps.
a) Operating conditions :
b) Detail of operation
When the outdoor air temperature (TH2) is 11ºC or higher continues for 30 seconds while
the compressor command speed other than 0 rps.
i)
ii)
iii)
iv)
Taking the upper limit of compressor command speed range at 78 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 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.
rps.
.
c) Reset conditions:
.
a)
b)
30
Protective
control
NO1
NO2
Item
Compressor command speed
Low limit
30 rps
30 rps
Upper limit
78 rps
51 rps
It depends on compressor command speed
Outdoor fan speed
2nd
10
(i) Protective control
I
2
changed as shown in the figure below.
9
3
3
3
-2
3
