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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Control logic
8.1 Control of EEV opening
1. EEV openings have a controllable ranges 70 (option) to 460 (option) pulse in both condition of cooling and heating.
2. Products do not be operated before initializing of EEV when starting.
3. Time constant control period of EEV is every 2 minutes except below conditions.
- Control EEV every 1 minutes for 10 minutes after starting.
- Control EEV every 1 minutes for 10 minutes after starting in case of the special situation such as defrost completion,
oil supplying, current transformer limitation, limitation of discharge temperature, low ambient operation control.
8. EEV Control
Time constant
control
0
460
Close
Power input
(Reset)
Initializin
90sec
Comp
On
Starting
control
Off
Comp
Off
Comp
On
-200
Open
Cooling:
160
Heating:
240
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