Mitsubishi SRK20ZSX-W User Manual

'18 • SRK-T-234
-
73
-
(21) Protective control function
(a)
Dew pr
evention control [Cooling]
Prevents dewing on the indoor unit.
(i)
Operating conditions
When the following conditions have been satised for more than
30 minutes after starting operation
1)
Compressor
’s speed is 22 rps or higher.
2)
Detected value of humidity is 68% (models SRK50, 60 : 60%) or higher
.
(ii)
Contents of operation
1)
Air capacity control
Model
Item
SRK20, 25 SRK35
ULO
Upper limit of compressor's speed RangeA: 40rps, RangeB: 24rps RangeA: 45rps, RangeB: 24rps
Indoor fan 4th speed
LO
Upper limit of compressor's speed RangeA: 40rps, RangeB: 24rps RangeA: 45rps, RangeB: 24rps
Indoor fan Adaptable to compressor speed
AUTO,HI,MED
Upper limit of compressor’s speed RangeA: 40rps, RangeB: 30rps RangeA: 45rps, RangeB: 30rps
Indoor fan
Adaptable to compressor speed
Note (1) Ranges A and B are as shown below.
Humidity(%)
68
73
Range A
Range B
'09•SRK-DB-087D
(18)Outline of cooling operation
(a)
ࠉOperation of major functional components in cooling mode
(d) Countermeasure for excessive temperature rise
If it feels excessive temperature rise in heating operation, setting temperature can be lower.
ON OFF OFF
OFF OFF OFF
ON
OFF
(few minutes ON)
OFF
(few minutes ON)
ON ON OFF
Thermostat ON Thermostat OFF Failure
Cooling
Compressor
Indoor fan
Outdoor fan
4-way valve
(b) Detail of control in each mode (Pattern)
(i) Fuzzy operation
12-74rps
12-74rps
12-54rps
12-42rps
SRK35
12-58rps
12-58rps
12-38rps
12-34rps
SRK25
12-50rps
12-50rps
12-34rps
12-30rps
SRK20
Model
Fan speed
Auto
MED
HI
LO
12-30rps
12-110rps
12-110rps
12-90rps
12-66rps
SRK60
12-30rps
12-86rps
12-86rps
12-70rps
12-50rps
SRK50
12-30rps12-30rps12-30rps
ULO
(b)
(i)
(ii)
(iii)
(c)
(d)
27.5
25.5
18.0
18
30
(20)ࠉOutline of automatic operation
(a) Determination of operation mode
Heating
Dehumidifying
Cooling
Indoor air temperature (˚C)
Outdoor air temperature (˚C)
Signals of wireless remote control (Display)
–6 –5 –4 –3 –2 –1
±
0+1+2+3+4+5+6
Setting
temperature
Cooling
Dehumidifying
Heating
A
When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending on
the difference between the setting temperature and the indoor air temperature.
When the operation mode has been judged following the change of setting temperature with the remote control, the hourly j-
udgment of operation mode is cancelled.
Heating
Cooling
SP: Setting temperature
SP
Indoor air
temperature (˚C)
28
Outdoor air temperature (˚C)
(b) Operation mode is changes when keep cooling and heating thermostat off 20 minutes and be satisfied following conditions.
If the setting temperature is changed with the remote control, the operation mode is judged immediately.
(c) When the unit is started again within one hour after the stop of automatic operation or when the automatic operation is
selected during heating, cooling or dehumidifying operation, the unit is operated in the previous operation mode.
(d) Setting temperature can be adjusted within the following range. There is the relationship as shown below between the signals
of the wireless remote control and the setting temperature.
※It can not be changed to heating mode if outdoor air temperature is 28℃ or higher.
Heating
SP: Setting temperature
Indoor air temperature－Setting temperature (˚C)
Keep operation
mode
Cooling
Signals of wireless remote control (Display)
18 19 20 21 22 23
24
25 26 27 28 29 30
18 19 20 21 22 23
24
25 26 27 28 29 30
18 19 20 21 22 23
24
25 26 27 28 29 30
Setting
temperature
Cooling
Heating
SP
＋
1
SP
－
1
Unit : ℃
Operation mode is determined by indoor air temperature and outdoor air temperature as following.
(a) Determination of operation mode

Mitsubishi SRK20ZSX-W Specifications

General

Brand	Mitsubishi
Model	SRK20ZSX-W
Category	Air Conditioner
Language	English