Outline Of Automatic Operation; Outline Of Fan Operation - Mitsubishi Heavy Industries SRK20ZD-S1 Technical Manual

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(10) Outline of automatic operation

(a) Determination of operation mode
The unit checks the room temperature and the outdoor air temperature after operating the indoor and outdoor blowers for 20
seconds, determines the operation mode and the room temperature setting correction value, and then begins in the automatic
operation.
¡ Heat pump type
27.5
25.5
19.5
Heating
(b) Within 30 minutes after either auto or manual operation stops, if auto operation is started, or if you switch to auto operation during
manual operation, the system runs in the previous operation mode.
(c) The temperature is checked 1 time in 30 minutes after the start of operation, and if the judgment differs from the previous operation
mode, the operation mode changes.
(d) Setting temperature can be adjusted within the following range. There is the relationship as shown below between the signals of
the wireless remote controller and the setting temperature.
Cooling
Setting
Dehumidifying
temperature
Heating
(11) Outline of fan operation (Cooling only type only)
(a) Operation of major functional components
Fan speed switching
Functional
components
52C
Indoor fan motor
Outdoor fan motor
Flaps
(b) HIGH POWER operation ("HI POWER" button on the remote controller : ON)
The following operation is performed for 15 minutes without relation to the set temperature or fan speed setting.
Indoor unit fan
Outdoor unit fan
Compressor
Cooling
Dehumidifying
18
Outdoor temperature (˚C)
–6
–5
–4
19
20
21
19
20
21
20
21
22
High power
AUTO
Speed 8
Speed 7
Speed 8 fixed
OFF
Note (1) Protective functions will actuate with priority even during the HIGH POWER operation.
OFF
¡ Cooling only type
27.5
25.5
Dehumidifying
19.5
30
Signals of wireless remote controller (Display)
±0
–3
–2
–1
22
23
24
25
22
23
24
25
23
24
25
26
HIGH
OFF
Speed 6
Speed 5
OFF
Depend on the flap control
192
-
-
18
Outdoor temperature (˚C)
+1
+2
+3
+4
26
27
28
29
26
27
28
29
27
28
29
30
MED
LOW
Speed 4
Cooling
30
+5
+6
30
31
30
31
31
32
ECONO
Speed 3

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