DOWNLOAD LG LS-J0762Y / S07LHN Service Manual ↓ Size: 6.28 MB | Pages: 101 in PDF or view online for FREE

Model
LS-J0762Y S07LHN
Pages
101
Size
6.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
ls-j0762y-s07lhn.zip
Date

LG LS-J0762Y / S07LHN Service Manual ▷ View online

-16-
6. Heating mode operation
• Operating frequency of compressor depend on the difference of the temperature
(= compressor off temp. - intake air temp.)
• Compressor off temp. = setting temp.+3.0°C
on temp. = setting temp.
• If compressor operates at some operation frequency, the operating frequency of  compressor cannot be
changed within 30 seconds.
• Condition of compressor turned off
- When intake air temperature reaches +3°C above the setting temperature.
• Condition of indoor fan turned off
- While in compressor on:indoor pipe temp. < 30°C
• While in defrost control, between the indoor and outdoor fans are turned off.
• Compressor 2minutes delay
- After compressor off, the compressor can restart minimum 2 minutes later.
Temp. differences
over 3.0°C
2.5~3.0°C
2.0~2.49°C
1.5~1.99°C
1.0~1.49°C
0.5~0.99°C
0.0~0.49°C
Comp. Operating frequency
Step 7
Step 6
Step 5
Step 4
Step 3
Step 2
Step 1
[ The operating freq. step of comp]
[The targeting operating freq. of comp. each model]
Model
7K Series(AC)
35
48
56
68
80
85
90
12K Series(AC)
35
43
55
65
74
80
86
9K Series(DC)
15
25
40
52
63
66
70
12K Series(DC)
15
28
40
53
66
71
76
Comp. Operating frequency
Step 1
Step 2
Step 3
Step 4
Step 5(Fr)
Step 6
Step 7
-17-
7. Fuzzy mode operation
• When any of operation mode is not selected like the moment of the power on or when the unit turned off, the
operation mode is selected.
• When determining the operation mode, the compressor, outdoor fan are off and only the indoor fan is operat-
ed for 15~20 seconds, then an operation mode is selected according to.
Basis of determining operating mode
Outdoor temp.
over 24°C
21~24°C
18~21°C
below 18°C
Operating Mode
Cooling
Healthy Dehumidification
intake air temp. 
25°C …Dehumidification
intake air temp. < 25°C … Heating
Heating
7.1 Fuzzy operation for cooling
• According to the setting temperature selected by Fuzzy rule, the operating frequency of compressor is deter-
mined like cooling mode operation.
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temperature at that time.
• When the Fuzzy key(=setting temp. key) is input after the initial setting temperature is selected, the  Fuzzy
key value and intake air temperature at that time are compared to select the setting temperature automatically
according to the fuzzy rule.
• While in Fuzzy operation, the air flow speed of the indoor fan is automatically operated by Fuzzy logic.
at beginning
during opertion
Intake air temp.
over 26°C
18~26°C
below 18°C
18~30°C
below 18°C
over 30°C
Setting temp.
25°C
intake air temp. -0.5°C 
18°C
Fuzzy rule
18°C Fuzzy rule
30°C Fuzzy rule
Fan speed
Fuzzy airflow
-18-
7.2 Fuzzy operation for Heating
• According to the setting temperature selected by Fuzzy rule, the operating frequency of compressor is deter-
mined like heating mode operation.
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temperature at that time.
• When the Fuzzy key(=setting temp. key) is input after the initial setting temperature is selected, the Fuzzy key
value and intake air temperature at that time are compared to select the setting temperature automatically
according to the Fuzzy rule.
• While in Fuzzy operation, the airflow speed of the indoor fan is automatically operated by Fuzzy logic.
at beginning
during opertion
Intake Air temp.
over 20°C
below -20°C
16~30°C
below 16°C
over 30°C
Setting temp.
intake air temp. +0.5°C
20°C
Fuzzy rule
16°C Fuzzy rule
30°C Fuzzy rule
Fan speed
Fuzzy airflow
7.3 Fuzzy operation for dehumidification
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temperature at that time.
• According to the setting temperature selected by Fuzzy rule, the operating frequency of compressor is deter-
mined like dehumidefication mode operation.
at beginning
during operation
Intake Air temp.
over 26°C
18~26°C
below 18°C
18~30°C
below 18°C
over 30°C
Setting temp.
25°C
intake air temp. -0.5°C
18°C
Fuzzy rule
18°C Fuzzy rule
30°C Fuzzy rule
Fan speed
Fuzzy airflow
-19-
8. Jet cool mode operation
• While  in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the
other mode operation(cooling, dehumidification, ventilation), the Jet Cool mode is operated.
• In the Jet Cool mode, the indoor fan is operated super-high speed for 30 min. at cooling mode operation.
• In the Jet Cool mode, the room temperature is controlled to the setting temperature, 18°C.
• When the sleep timer mode input while the Jet Cool mode operation, the Jet Cool mode has the priority.
• When the Jet Cool key is input, the upper/lower vane is reset to those of the initial cooling mode and then
operated in order that the air outflow could reach further.
9. Jet heat mode operation
• While  in cooling mode or Fuzzy operation, the Jet Heat key cannot be input. When it is input while in the
Heating mode operation (dehumidification), the Jet Heat mode is operated.
• In the Jet Heat mode, the indoor fan is operated super-high speed for 60 min. at Heating mode operation.
• In the Jet Heat mode, the room temperature is controlled to the setting temperature, 30°C.
• When the sleep timer mode input while the Jet Heat mode operation, the Jet Heat mode has the priority.
• When the Jet Heat key is input, the upper/lower vane is reset to those of the initial Jet heating mode and
then operated in order that the air outflow could reach under flow.
10. Swing mode
10.1 Chaos swing mode
• By the Chaos swing key input, the upper/lower vane automatically operates with the Chaos swing or it is fixed
to the desired direction.
CLOSED
Chaos Swing On
Chaos Swing
The first path
Mode 9
Mode 8
Mode 7
Mode 6
Mode 5
Mode 4
Mode 3
Mode 2
Mode 1
OPEN
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