Mitsubishi SRC92ZL-S, Technical Manual & Parts List

Page: 42 / 92

-
0
-
'12 • SRK-T-130
'09•SRK-DB-087D
(g) Heating overload protective control
Indoor unit side
1) Operating conditions :
2) Detail of operation :
3) Reset conditions :
Outdoor unit side
1) Operating conditions :
2) Detail of operation
3) Reset conditions:
Operating conditions:
Detail of operation:
(h)
(i)
Heating low outdoor temperature protective control
Reset conditions:
-8 -6 4 6
Lower limit 28 rps
Lower limit 24 rps
Normal operation
Outdoor air temperature (°C)
10 11 19 20
Normal operation
Protective control ON1
Protective control ON2
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
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.
a)
b)
c)
Taking the upper limit of compressor command speed range at 65 rps or 35 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 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.
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:
.
1)
2)
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
11
10
20 rps or 25 rps.
6
4
3
3
3
3
3
(ii)
3
(ii)
(iii)
(i)
'09•SRK-DB-087D
(i) Compressor overheat protection
Purpose:
Detail of operation
1)
Discharge pipe temperature (˚C)
180
180
180
(Example) Fuzzy
95 105 115
180
180
2)
(j) Current safe
Purpose:
Detail of operation:
(k) Current cut
Purpose:
Detail of operation:
(l) Outdoor unit failure
(m) Indoor fan motor protection
Cooling Heating
Lower limit speed
Item
Model
3)
ޓ
Reset conditions:
When either of the following condition is satisfied.
a)
ޓ
The outdoor air temperature (TH2) becomes 6ºC.
b)
ޓ
The compressor command speed is 0 rps.
20 rps 25 rps
item (i), (ii) is satisfied. Once the unit is stopped by this function, ti is not
105 115
95 105
95 105
115
4
(i)
(ii)
(i)
(ii)
(i)
(ii)
(i)
(ii)