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_TROUBLE SHOOTING GUIDE BOOK __
3.3 Refrigerant Auto Charging (Cooling / Heating)
This function charge suitable refrigerant amount in system through cycle operation automatically. If the
refrigerant amount is inaccurate by service, pipe leakage, etc, can use this function.
■ Setting the function
Function
Refrigerant Auto Charging Fd 1 (Cooling) / Fd 2 (Heating)
■ Flow Chart
- 35 -
Copyright ©2017 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Function
4.3 Refrigerant Auto Charging
This function charge suitable refrigerant amount in system through cycle operation automatically.
If the refrigerant amount is inaccurate by service, pipe leakage, etc, can use this function.
Use refrigerant charging, if service only.
Put the refrigerant by calculating the refrigerant amount surely, if install.
Refrigerant charging time can be different following the charging refrigerant amount.
( Charging time : about 3 minute/kg )
Yes
Yes Yes
Yes
Yes
Yes
Cooling
Heating
No
No
No
No
No
No
No
Start
Expression
Blowing mode for 1 minute
Start refrigerant charging
Cycle instability
Reverse switching, indoor unit OFF
Start system full room operation
Operate refrigerant amount judgment mode
(25minute operation)
Temperature/load
condition suitability
Cycle stability
Operation time
40minute over
Refrigerant lack
12 minutes over after
E10 expression
SW02C,SW03C
(�, �) Push Button
over 3 second
Refrigerant amount
End
■ Detailed information
• Install refrigerant charging device like this page.
• If it is out of the guarantee temperature range, can end by not operating refrigerant charging.
-
Outdoor guarantee temperature range
cooling : 0~43℃ [32~109.4 ℉] / heating : -10~24℃ [14~75.2℉]
-
Indoor guarantee temperature range
cooling : 0~32℃ [32~64.4℉] / heating : 10~27℃ [50~80.6℉]
• If the system are turned off continuously by low pressure decrease excessively due to refrigerant
lack before E10 expression, try again after add about 15% refrigerant of regular refrigerant amount.
• Press SW04C(X: Cancel) button and down dip switch after function end.
■ Refrigerant Charging Method
• Procedure
1. Prepare Manifold, refrigerant and scale. (sold separately)
2. Connect Manifold to refrigerant charging port As shown in the figure above.
3. Connect Manifold and refrigerant.
4. Perform the air purge between Manifold hose.
5. When is appeared, push '▶' or '◀' button.
6. When is appeared, open the valve and fill the system with the refrigerant.
7. When is appeared, close the valve and remove connected charging port.
- 36 -
Copyright ©2017 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
< ORDER >
1. Prepare Manifold, refrigerant and scale. (sold separately)
2. Connect Manifold to refrigerant charging port As shown in the figure above.
3. Connect Manifold and refrigerant.
4. Perform the air purge between Manifold hose.
5. When / is appeared, push ‘►’ or ‘◀’ button.
6. When or is appeared, open the valve and fill the system with the refrigerant.
7. When or is appeared, close the valve and remove connected charging port.
4.4 Refrigerant charging method and error contents
• Install refrigerant charging device like this page.
• If it is out of the guarantee temperature range, can end by not operating refrigerant charging.
- Outdoor guarantee temperature range (cooling : 0~43℃ [32~109.4 ℉], heating : -10~24℃ [14~75.2℉])
- Indoor guarantee temperature range (cooling : 0~32℃ [32~64.4℉], heating : 10~27℃ [50~80.6℉])
• If the system are turned off continuously by low pressure decrease excessively due to refrigerant lack before E10 expres-
sion, try again after add about 15% refrigerant of regular refrigerant amount.
• Press SW04C(X: Cancel) button and down dip switch after function end.
Heat recovery system Heat pump system
Refrigerant Charging kit
(PRAC1)
Refrigerant Charging kit
(PRAC1)
CAUTION
1. When you put refrigerant, using the specified equipment.
2. Please the wired remote control to set the main unit.
3. During Indoor unit operating, be careful not to be Thermo off.
4. If The Outdoor unit occurred frost when Heating automatic refrigerant filling,
Please restart corresponding function after forced defrost.
WARNING
• When perform the leakage test and air purge, please use a vacuum pump or an inert gas. (nitrogen)
If you use Oxygen, compressed air and flammable gas, there are fire and danger of explosion.
There are risk of death, personal injury, fire, explosion.
Function
Basic PartBasic PartBasic PartBasic Part
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