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15
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7-2. Description of Operation Circuit
(1) When turning on the breaker, the operation lamp
blinks. This means that the power supply is on.
(2) When pressing [ ] button on the remote control,
receiving beep sounds from the indoor unit, and
the next operation is performed together with
opening the vertical air flow louver.
(3) Once the operation mode is set, it is memorized in
the microcontroller so that the previous operation
can be effected thereafter simply by pressing
[ ] button.
7-2-
1
. Cooling operation
([MODE] button on the remote control is set
to the cooling operation.)
(1) The compressor, 4-way valve, outdoor fan and
operation display on the remote control are
controlled as shown in Fig. 7-2-1.
Fig. 7-2-
1
(2) When [FAN] button is set to AUTO, the indoor fan
motor operates as shown in Fig. 7-2-2. When
[FAN] button is set to LOW , MED or HIGH,
the motor operates with a constant air flow.
NOTE :
*1: The values marked with *1 are calculated and
controlled by the difference in motor speed
between M+ and L
-
.
Fig.
7-2-
2
Setting of air flo
w [FAN:AUTO]
*1
*1
*1
L
+3
°C
+2.5
+2
+1.5
+1
+0.5
-0.5
0
M+
(Room temp.)
−
(Preset temp.)
Preset
temp.
0.5
°C
0
Preset
temp.
ON
ON
OFF OFF OFF ON
Compressor
4-way valve
Outdoor fan
OPERATION
display
(Room temp.)
(Preset temp.)
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FILE NO. SVM-05003
7-2-
2
. Dry operation
([MODE] button on the remote control is set
to the dry operation.)
(1) The compressor, 4-way valve, outdoor fan and
operation display on the remote control are
controlled as shown in Fig. 7-2-3.
Fig. 7-2-
3
(2) The microcontroller turns the compressor on and
off at the regular intervals (4 to 6 minutes). While
the compressor is turning off, the indoor fan motor
operates in the SUPER LOW position.
The pattern of operation depending on the relation
between room temperature and preset
temperatures is shown in Fig. 7-2-4.
Fig. 7-2-
4
Room temp.
Preset temp.+1
Preset temp.
Compressor
Outdoor fan
Indoor fan
L
*
SL SL
L
L SL L
ON
ON
ON
ON
OFF
OFF
OFF
*
Super Low
Preset
temp.
OFF
ON
+3
°C
+2
+1
0
OFF
4-way valve
Outdoor fan
OPERATION
display
Compressor
ON:6min.
OFF:4min.
ON:5min.
OFF:5min.
OFF
ON:6min.
OFF:4min.
ON:5min.
OFF:5min.
(Room temp.)
(Preset temp.)
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(3) [FAN] button on the remote control is set to AUTO
only.
(4) The ECO operations cannot be set.