Display Brightness Adjustment; Auto Off Operation; Outline Of Heating Operation - Mitsubishi SRK20ZSX-W Technical Manual

(15) Display brightness adjustment

This function can be used when it is necessary to adjust the brightness of unit display.
Brightness level
LV2
LV1
LV0
Note(1) When the unit displays self diagnosis or service mode, brightness level is always LV2.

(16) AUTO OFF operation

In order to prevent the air-conditioner from continuing to operate although the person(s) has already left the room,
the air-conditioner automatically stops approximalely 1 hour (or 2 hours) after the sensor judges that there is no one in the room.
(a) Emits a warning sound, "Peep, Peep, Peep", and stops the operation automatically when there is no one in the room for setting
time (Standby). When the motion sensor detects a person 12 hours after the operation was stopped, the operation resumes with
the same settings. The operation does not resume even if a person is detected after 12 hours has elapsed. (The RUN light blinks
slowly during standby.)
(b) When the SLEEP TIMER, OFF TIMER and ON TIMER + OFF TIMER operation are set, the AUTO OFF functions is disabled.
(c) The AUTO OFF function does not activate if the operation is started by the ON TIMER when there is no one at home.

(17) Outline of heating operation

(a) Operation of major functional components in heating mode
Compressor
Indoor fan
Outdoor fan
4-way valve
*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.
(b) Details of control at each operation mode (pattern)
(i) Fuzzy operation
Fan speed
Auto
HI
MED
LO
ULO
(ii) Hot keep 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)
1)
2) After finish of defrost operation
3)
4)
Run light Timer light
100% 100%
50% 50%
0% 0%
Thermostat ON
ON
ON
ON
ON
Model
SRK20 SRK25
12-78rps 12-86rps
12-78rps 12-86rps
12-78rps 12-86rps
12-42rps 12-50rps
12-30rps
12-30rps
35
(Total compressor operation time)
35 (Total compressor operation time)
(models SRK20, 25, 35 : TH2 ; models SRK50, 60 : TH1)
−
C or less for 3 minutes continuously.
Heating
Thermostat OFF
OFF
ON(HOT KEEP)*
OFF
(few minutes ON)
ON
SRK35
12-98rps
12-98rps
12-98rps
12-66rps
12-30rps
70
- -
'18 • SRK-T-234
'09•SRK-DB-087D
'09•SRK-DB-087D
Failure
OFF
OFF
OFF
OFF
(3 minutes ON)
SRK50 SRK60
12-106rps 12-120rps
12-106rps 12-120rps
12-106rps 12-120rps
12-78rps 12-90rps
12-38rps 12-38rps
are satisfied.)