Mitsubishi Heavy Industries SRK60ZSX-S Technical Manual page 43

*It can be set the indoor fan motor off or the heating thermostat OFF with connecting a wired remote control.
ECO
In the case, indoor air temperature is detected by sensor on the wired remote control.
(b) Details of control at each operation mode (pattern)
(ii) Hot keep operation
(i) Fuzzy operation
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.
(c) Defrost operation
(i)
Fan speed
1)
Auto
HI
MED
After finish of defrost operation
2)
LO
ULO
3)
ECO
4)
(ii) Hot keep operation
is as following.
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.
Models SRK20, 25, 35
(c) Defrost operation
0
(i)
5)
1)
In case satisfied all of following conditions.
-5 • Connect compressor speed 0 rps 10 times or more.
• Satisfy 1), 2) and 3) conditions above.
2) After finish of defrost operation
• Outdoor air temperature is 3°C or less.
-10
(ii)
3)
1)
-15
Continued operation time of defrost operation → For more than 18 minutes.
2)
4)
is as following.
-20
-20
5)
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.
(ii)
1)
2) Continued operation time of defrost operation → For more than 18 minutes.
Heating operation
(d) Countermeasure for excessive temperature rise
If it feels excessive temperature rise in heating operation, setting temperature can be lower.
(i) Setting
(18) Outline of cooling operation
Push ON/OFF button 30 seconds or more after turn on the power source and operate the air-conditioner
(a) Operation of major functional components in cooling mode
at least once time, At completion of the setting, the indoor unit emits a buzzer sound "Pip Pip".
(ii) Contents of control
Compressor
Indoor fan
Outdoor fan
Before setting
4-way valve
After setting
(b) Detail of control in each mode (Pattern)
(iii) Reset condition
(i) Fuzzy operation
Push ON/OFF button 30 seconds or more during setting this mode. At completion of the reset, the indoor
unit emits a buzzer sound "Pip Pip Pip".
12-42rps
Model
SRK20ZSX-S
12-78rps
35 12-78rps (Total compressor operation time)
12-78rps
12-42rps
35 (Total compressor operation time)
12-30rps
12-42rps
−
C or less for 3 minutes continuously.
35 (Total compressor operation time)
35 (Total compressor operation time)
Defrost operation
−
C or less for 3 minutes continuously.
start
-15 -10 -5 0 5
Outdoor air temperature (℃)
¡Defrost operation
Depends on an operation condition, the time can be longer than 7 minutes.
Thermostat ON
ON
ON
18 19 20
ON
20 21 22
OFF
18 19 20
12-50rps 12-66rps
SRK25ZSX-S SRK35ZSX-S
12-86rps 12-98rps
12-86rps 12-98rps
12-86rps 12-98rps
12-50rps 12-66rps
12-30rps 12-30rps
12-50rps 12-66rps
Models SRK50, 60
0
-5
-10
(models SRK50, 60 : 10 )
-15
-20
10 -20 -15
(models SRK50, 60 : 10 )
Max. 18 minutes.
Cooling
Thermostat OFF
OFF
Signal of wireless remote control (Display)
ON
21 22 23 24
OFF
(few minutes ON)
23 24 25 26
OFF
21 22 23 24
42
- -
12-78rps
'17 • SRK-T-203
are satisfied.)
SRK50ZSX-S
12-106rps
12-106rps
12-106rps
12-78rps
12-38rps
12-78rps
are satisfied.)
is satisfied.)
Defrost operation
start
-10 -5 0 5
Outdoor air temperature (℃)
is satisfied.)
2~7 minutes
Hot keep operation
'09•SRK-DB-087D
Failure
OFF
OFF
25 26 27 28
OFF
(few minutes ON)
27 28 29 30
OFF
25 26 27 28
12-90rps
SRK60ZSX-S
12-120rps
12-120rps
12-120rps
12-90rps
12-38rps
12-90rps
10
Unit : °C
29 30
31 32
29 30