Mitsubishi SRK 25ZS-W, Technical Manual

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69
-
'18 • SRK-T-250
35
35
(model SRK50 : 10 )
'09•SRK-DB-087D
(16)
ࠉ
Outline of heating operation
(a) Operation of major functional components in heating mode
(b) Details of control at each operation mode (pattern)
(i) Fuzzy operation
(ii) Hot keep operation
ON OFF
ON ON
ON
OFF
(few minutes ON)
ON ON(HOT KEEP)*
OFF
OFF
(3 minutes ON)
OFF
OFF
Thermostat ON Thermostat OFF Failure
Heating
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
(c) Defrost operation
(i)
1)
2)
3)
4)
5)
1)
2)
−
(ii)
Model
Fan speed
Auto
MED
HI
LO
ULO
*It can be set the indoor fan motor off or the heating thermostat OFF with connecting a wired remote control.
In the case, indoor air temperature is detected by sensor on the wired remote control.
During the heating operation, the indoor fan speed can be controlled based on the temperature of the indoor heat
exchanger (Th2) to prevent blowing out of cold air.
are satisfied.)
is satisfied.)
(Total compressor operation time)
After finish of defrost operation
C or less for 3 minutes continuously.
(Total compressor operation time)
20-115rps
20-115rps
20-86rps
20-70rps
20-44rps
SRK20
20-115rps
20-115rps
20-104rps
20-84rps
20-54rps
SRK25
20-115rps
20-115rps
20-108rps
20-96rps
20-60rps
SRK35
20-110rps
20-110rps
20-106rps
20-94rps
20-63rps
SRK50
Continued operation time of defrost operation
→
For more than 17 minutes (models SRK35, 50 : 17 minutes and 30seconds).
In case satisfied all of following conditions.
• Connect compressor speed 0 rps 10 times or more.
• Satisfy 1), 2) and 3) conditions above.
• Outdoor air temperature is 3°C or less.
is as following.
-20
-20 -15 -10 -5 0 5 10
-15
-10
-5
0
Outdoor air temperature (
℃
)
Outdoor heat exchanger temperature (
℃
)
-20
-20 -15 -10 -5 0 5 10
-15
-10
-5
0
Outdoor air temperature (
℃
)
Outdoor heat exchanger temperature (
℃
)
Defrost operation
start Defrost operation
start
Defrost operation start temperature
Defrost operation start temperature
Models SRK20, 25 Models SRK35, 50