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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 3 Control logic
8.4 Flow Chart
• Cooling
Power ON
Power Reset
Fully Open
Standard Initial set
pulse open
Step control (every
1 min response time)
Catch up the stagnation
Step control (every
2 min response time)
Fully close
(set 0,-200 pulse, can
hear knocking sound)
LEV
Initialization
(Duration 90 sec)
Compressor ON
Outdoor Fan ON
Starting control
(Duration 240 sec)
On-time control
(Duration continues)
Dis superheating
control
(T
dsh
)
Tdsh<20˚C(Option)
T
dsh
<20˚C
T
sh
<2˚C
T
sh
≥
2˚C(Option)
T
dsh
≥
0˚C(Option)
Tdsh>20˚C(Option)
Check T
in
Close LEV
Open LEV
Close LEV
Back to
Main Control
Check T
in
Super heat control
(T
sh
= T
out
–T
in
)
Check Dis superheating
temp.(Tdsh)
Summary of Contents for APNH2433LAD
Page 92: ...P NO MFL47149005 MARCH 2009 ...
