Mitsubishi Heavy Industries SRC25ZMP-S Technical Manual page 32

Fan speed
(9) Outline of heating operation
Auto
HI
(a) Operation of major functional components in heating mode
MED
LO
Compressor
(ii) Hot keep operation
Indoor fan motor
2) Hot keep operation
If the hot keep operation is selected during the heating operation, the indoor blower is controlled based on the temperature of
Outdoor fan motor
the indoor heat exchanger (Th2) to prevent blowing of cool wind.
4-way valve
However, if the fan speed setting is HI and room temperature is 19 ℃ or higher, this control is not executed.
(c) Defrosting operation
(b) Details of control at each operation mode (pattern)
(i)
1) Fuzzy operation
1)
2)
Fan speed
Auto
3)
HI
MED
4)
LO
− ≦
2) Hot keep operation
(model SRK45 : ＋10
5)
Models SRK25, 35ZMP-S
(c) Defrosting operation
0
(i)
1)
-5
−
2)
(ii)
-10
1)
3)
2)
-15
4)
-20
− ≦
-25
-20
(model SRK45 : ＋10
5)
−
(ii)
1)
2)
Heating operation
SRK20ZJ-S
30~115rps
30~115rps
30~66rps
30~40rps
Thermostat ON
ON
ON
ON
ON
35 (model SRK35 : 45)
Model
SRK20ZJ-S
35 (model SRK35 : 45)
30~115rps
30~115rps
−
30~66rps
30~40rps
(model SRK45 : ≧ −2
≧
) higher
＜ −
(model SRK35 : 45)
35
35 (model SRK35 : 45)
−
Defrost operation
start
(model SRK45 : ≧ −2
≧
-15 -10 -5 0
)
higher
Outdoor air temperature (℃)
＜ −
¡Defrost operation
Max. 16 minutes and 50 seconds
(Mode SRK45: Max.17 minutes)
Depends on an operation condition, the time can be longer than 7 minutes.
SRK25ZJ-S SRK35ZJ-S
30~115rps 30~115rps
30~115rps 30~115rps
30~72rps 30~76rps
Heating
30~42rps 30~46rps
Thermostat OFF
OFF
ON(HOT KEEP)
OFF
(few minutes ON)
ON
SRK25ZJ-S SRK35ZJ-S
30~115rps 30~115rps
30~115rps 30~115rps
30~72rps 30~76rps
30~42rps 30~46rps
)
(model SRK45 : ≧ −2
＜
−
Model SRK45ZMP-S
0
1) 2) 3) 5)
-5
-10
16 minutes and 50 seconds (model SRK45 : 17 minutes).
-15
-20
)
＜ (model SRK45 : ≧ −2
-25
5 10 -20
−
1) 2) 3) 5)
16 minutes and 50 seconds (model SRK45 : 17 minutes).
31
- -
SRK50ZJ-S
23~106rps
23~106rps
'13 • SRK-T-140
23~78rps
23~50rps
Failure
OFF
OFF
OFF
OFF
(3 minutes ON)
SRK50ZJ-S
23~106rps
23~106rps
23~78rps
23~50rps
(model SRK45 : 10 )
)
−
Defrost operation
start
(model SRK45 : 10 )
)
-15 -10 -5 0
Outdoor air temperature (℃)
−
2~7 minutes
Hot keep operation
5 10