Lev Control - LG Single A Svc Manual

Part 3 Control logic

8. LEV Control

8.1 Control of LEV opening
1. LEV 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 LEV when starting.
3. Time constant control period of LEV is every 2 minutes except below conditions.
- Control LEV every 1 minutes for 10 minutes after starting.
- When indoor capacity changed, Control LEV every 1 minutes for 10 minutes after starting
- Control LEV every 1 minutes for 10 minutes after starting in case of the special situation such as defrost completion,
oil recovery, oil equalizing control, oil supplying, current transformer limitation, limitation of discharge temperature, low
ambient operation control.
LEV
opening
Power input
(Pulse)
(Reset)
460
Close
0
-200
Initializin
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Comp
On
Open
Starting
control
- 44 -
Comp
Off
Time constant
control
Comp
On
time
Starting
control
Off
Heating and cooling
Heating
Cooling
LGE Internal Use Only