Outline Of Automatic Operation; Determination Of Operation Mode - Mitsubishi SCM40ZJ-S Service Manual

1.5 Outline of automatic operation

(1) Determination of operation mode

(a) SRK20, 25, 35, 50, 60ZJX, SRF and SRR series
The unit checks the indoor air temperature and the outdoor air temperature after operating the indoor and outdoor blowers
for 0 seconds, determines the operation mode and the indoor air temperature setting correction value, and then enters in
the automatic operation.
Indoor air temperature (°C)
) The unit checks the temperature every hour after the start of operation and, if the result of check is not same as the previous
operation mode, changes the operation mode.
) When the unit is started again within one hour after the stop of automatic operation or when the automatic operation is se-
lected during heating, cooling or dehumidifying operation, the unit is operated in the previous operation mode.
) Setting temperature can be adjusted within the following range. There is the relationship as shown below between the sig-
nals of the wireless remote controller and the setting temperature.
◆ SRF series
Setting Cooling
temperature Dehumidifying
Heating
◆ SRK, SRR series
Setting Cooling
temperature Dehumidifying
Heating
) When the unit is operated automatically with the wired remote controller connected, the cooling operation is controlled accord-
ing to the display temperatures while the setting temperature is compensated by +°C during dehumidifying or by +°C during
heating.
(b) SRK25, 35ZJR-S, 20, 25, 35, 50ZJ-S, 71ZK-S series
Indoor air temperature (˚C)
27.5
25.5
19.5
Heating
Outdoor air temperature (°C)
Signals of wireless remote control (Display)
–6 –5 –4 –3
  0 
  0 
0   
Signals of wireless remote control (Display)
–6 –5 –4 –3
  0 
 0  
0   
27.5
25.5
A
18.0
Heating
Outdoor air temperature (˚C)

- -
Cooling
Dehumidifying
18
–2 –1 ±0 +1
   
   
   
±0
–2 –1 +1
   
   
   
Cooling
Dehumidifying
18
'11 • SCM-SM-110
30
Unit : °C
+2 +3 +4 +5
   
   
  0 
Unit : °C
+2 +3 +4 +5
   
   0
  0 
30
+6
0
0

+6
0