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Function
4.5 Refrigerant Checking Function
1. This function charges appropriate amount of refrigerant automatically through cycle operation.
2. This function judges refrigerant leakage and overcharging.
3. It can be used with refrigerant auto charging function.
Main
PCB
SW01S
Main
PCB
SW01B
SW02B
Main
PCB
SW01V
Main
PCB
SW01V
Start
Wait for 3 min. after power reset
Set the Dip S/W.
Refrigerant Checking : 1,2,7,14 ON
Press the black button on main PCB.
( Press until ‘608’ is displayed )
Press the black button on main PCB
IDU runs with cooling mode in order.
Excess of
Refrigerant
Main
PCB
SW01V
Judging
Refrigerant
Amount
Scarcity of
Refrigerant
IDU, ODU are turned off
Press the black button on main PCB
Press the black button for 2 sec. after
turning off all of dip S/W.
Completed
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Impossible
To Judge
Note
1. In case air temperature is out of guaranteed
temperature, refrigerant checking function may end
without performing refrigerant checking. Use
guaranteed temperature range only.
2. During the process of judging refrigerant amount, if
the cycle isn't stable, refrigerant checking function
may end without performing refrigerant checking.
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Note
Note 1)
LGE Internal Use Only