LG MULTI V 5 Manual Book page 102

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.
4.3 Refrigerant Auto Charging
■ Setting the function
This function charge suitable refrigerant amount in system through cycle operation automatically.
Function
If the refrigerant amount is inaccurate by service, pipe leakage, etc, can use this function.
Use refrigerant charging, if service only.
Refrigerant Auto Charging
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 )
■ Flow Chart
Start
Cooling
Blowing mode for 1 minute
Heating
No
Temperature/load
condition suitability
Yes
Start system full room operation
Operate refrigerant amount judgment mode
(25minute operation)
No
Cycle stability
Yes
No
Refrigerant lack
Yes
Expression
SW02C,SW03C
No
(�, �) Push Button
over 3 second
Yes
Start refrigerant charging
No
Refrigerant amount
Yes
Reverse switching, indoor unit OFF
End
202
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Only for training and service purposes
Function
Fd 1 (Cooling) / Fd 2 (Heating)
No
Operation time
40minute over
Yes
Cycle instability
No
12 minutes over after
E10 expression
- 35 -
LGE Internal Use Only
■ 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
Function
cooling : 0~32℃ [32~64.4℉] / heating : 10~27℃ [50~80.6℉]
• Install refrigerant charging device like this page.
• If the system are turned off continuously by low pressure decrease excessively due to refrigerant
• 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℉])
lack before E10 expression, try again after add about 15% refrigerant of regular refrigerant amount.
- 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-
• Press SW04C(X: Cancel) button and down dip switch after function end.
sion, 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
4.4 Refrigerant charging method and error contents
Heat recovery system
Refrigerant Charging kit
(PRAC1)
< ORDER >
1. Prepare Manifold, refrigerant and scale. (sold separately)
• Procedure
2. Connect Manifold to refrigerant charging port As shown in the figure above.
1. Prepare Manifold, refrigerant and scale. (sold separately)
3. Connect Manifold and refrigerant.
2. Connect Manifold to refrigerant charging port As shown in the figure above.
4. Perform the air purge between Manifold hose.
3. Connect Manifold and refrigerant.
5. When / is appeared, push '►' or '◀' button.
4. Perform the air purge between Manifold hose.
6. When or is appeared, open the valve and fill the system with the refrigerant.
5. When is appeared, push '▶' or '◀' button.
7. When or is appeared, close the valve and remove connected charging port.
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.
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.
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.
Heat pump system
Refrigerant Charging kit
(PRAC1)
203
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