Cooling Mode Operation - LG LS-J0761NL Service Manual

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
Model
7K Btu Series
9K Btu Series
12K Btu Series
18K Btu Series
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
[The operating freq. step of comp.]
[The targeting operating freq. of comp. each model]
Step 1
40
45
35
35
- 15 -
Comp. Operating frequency
Step 12
Step 10
Step 8
Step 4
Step 2
Step 1
Comp. Operating frequency
Step 2 Step 4 Step 8(Fc)
47 54 64
53 72 86
47 51 58
47 57 66
Step 10 Step 12
74 85
95 110
62 67
71 96
LGE Internal Use Only