LG LS-J0760NL / LS-J0820NL / LS-J0961NL_NT / LS-L1220NL / LS-L1260NL_NT Service Manual ▷ View online
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How to operate the power display
• It must be displayed the power level that will be operating frequency of compressor.
• It indicates power levels that compressor operating frequency is controlled to depend on indoor and outdoor
• It indicates power levels that compressor operating frequency is controlled to depend on indoor and outdoor
conditions.
• It is displayed as below.
❐
Heat mode operation
- Power level 1: below
¤Ø
of COMP. operating frequency
- Power level 2: below
¤
of COMP. operating frequency
- Power level 3: below
¤
of COMP. operating frequency
- Power level 4: below
¤
of COMP. operating frequency
- Power level 5: over
¤
of COMP. operating frequency
❐
Operation mode except heat mode operation
- Power level 1: below
¤Ł
of COMP. operating frequency
- Power level 2: below
¤
of COMP. operating frequency
- Power level 3: below
¤
of COMP. operating frequency
- Power level 4: below
¤
of COMP. operating frequency
- Power level 5: over
¤
of COMP. operating frequency
-12-
Power Level 1
Power Level 2
Power Level 3
Power Level 4
Power Level 5
-13-
2. Protection of the evaporator pipe from frosting
• If the indoor pipe temperaure is below 0°C in 7 min. after the compressor operates without pause while in
cooling cycle operation mode,
➔
compressor, outdoor fan are turned off.
• When indoor pipe temp. is 7°C or higher after 2 min pause of compressor
➔
compressor, outdoor fan is turned on according to the condition of the room temperature.
3. Protection of the indoor fan from droplet formation (Enclosure
sweat and condensed disposal test)
• Control condition : The system operates standard operation without this condition as follows.
- Setting temperature <25°C
- Indoor fan speed
- Indoor fan speed
≤
low speed
- Outdoor temperature < 31°C
• Control method
- Operation frequency of compressor must be below
➃
(refer to the comp. Freq. table)
- The indoor fan operates at medium speed.
Comp. free
Comp. off
0˚C
7˚C
Indoor pipe
temp.
temp.
Comp. frequency
4
Comp. free
5˚C
3˚C
4˚C
2˚C
Indoor pipe
temp.
temp.
4
-14-
4. Cooling mode operation
• Operating frequency of compressor depend on the difference of the temperature.
(= intake air Temp.- Compressor off Temp.
• Compressor off temp.= setting temp. -0.5°C
on temp. = setting temp. +0.5°C
• If compressor operates at some operating frequency, the operating frequency of compressor cannot be
changed within 30 seconds.
• Condition of compressor turned off
- When intake air temperature stay at the temperature between setting temp. -0.5°C and setting temp.
-1.0°C for 3 minutes continuously.
- When intake air temperature reaches below the temperature of setting temp. -1.0°C.
• Compressor 2 minutes delay
- The compressor can restart minimum 2 minutes later after compressor off.
Temp. differences
over 2.5°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
¤
¤
¤
¤Œ
¤Ł
¤
[The operating freq. step of comp.]
[The targeting operating freq. of comp. each model]
Model
LS-J0760NL
LS-J0961NL/NT
LS-L1260NL/NT
LS-J0820NL
LS-L1220NL
Comp. Operating frequency
37
43
48
57
64
70
41
53
64
73
80
86
35
38
47
58
66
73
35
47
52
58
62
68
35
43
48
58
66
70
¤
¤Ł
¤Œ
¤
(Fc)
¤
¤
-15-
5. Healthy Dehumidification mode operation
• When the dehumidification operation is set by the remote controller the intake air temperature is detected and
the setting temp. is automatically set according to the intake air temperature.
• Operating frequency of compressor and indoor fan speed.
Temp. differences
32°C
≤
intake air temp.
26°C
≤
intake air temp. < 32°C
24°C
≤
intake air temp.< 26°C
18°C < intake air temp. < 24°C
intake air temp.
≤
18°C
Comp. Operating frequency
25°C
25°C
intake air temp. -1°C
intake air temp. -0.5°C
18°C
Cooling operation area
Dehumidification
operation area
After 3 min off
OFF instantly
Low
speed
speed
Low
speed
speed
After 5 min OFF
low speed
low speed
Setting
speed
speed
+1.0˚C
+0.5˚C
Setting temp. +0˚C
-1.0˚C
-2.0˚C
Operating frequency of compressor
Indoor fan speed
43Hz
38Hz
35Hz
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