Refrigerant Auto Judge (Fd3 [Cooling], Fd4 [Heating]) - LG Multi V5 Service Manual
Hide thumbs
Also See for Multi V5:
- Data manual (162 pages) ,
- Manual book (133 pages) ,
- Engineering manual (105 pages)
Table of Contents
Advertisement
OTHER CONTROLS
Setting Optional Modes
Refrigerant Auto Judge (Fd3 [Cooling], Fd4 [Heating])
This function allows the system to automatically judge refrigerant levels through system operation. Refrigerant Auto Judge can be used to see if
the system has been overcharged or undercharged, and can be used with the Refrigerant Auto Charge function.
Cooling
Heating
Refrigerant Amount Auto Measure function will not work or stop if the indoor unit combination ratio and the operating temperature range are
not within manufacturer's allowable parameters.
• Indoor unit combination ratio: 80~130%
• Outdoor unit operating temperature range: Cooling = 32~109.4°F; Heating = 14~75.2°F.
Refrigerant Auto Judge runs for fifteen (15) minutes at full load operation; refrigerant levels can be measured directly under
special cases.
• Press SW04C (X: Cancel) button, and turn No. 5 on the master outdoor unit PCB DIP switch bank SW01 to OFF after the function ends.
60
Start
Operate system in fan mode for
one (1) minute.
Is the temperature OK?
Yes
Start system full load operation
(operates for 15 minutes).
Yes
Is the condition stable?
Yes
Run Refrigerant Amount
Judge function.
Function completes and the results
are displatyed.
End
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
No
End
No
After 40 minutes?
Yes
Cycle unstable?
• The number on the SSD is the percentage of refrigerant that
is overcharged or undercharged, per the total refrigerant amount.
ex1)
20% Refrigerant Overcharge
ex2)
20% Refrigerant Undercharge
ex3)
No Adjustment Necessary
No
Need to Remove
Need to Add
Advertisement
Table of Contents
Troubleshooting
