LG MULTI F Installation Manual page 24

INSTALLATION
Flaring Procedure
Tightening the Flare Nuts
Tightening Torque for Flare Nuts.
Pipe Size (in. O.D.) Outside Diameter (mm)
1/4
3/8
1/2
5/8
3/4
1. When connecting the flare nuts, coat the flare (outside only) with polyvinyl ether (PVE) refrigeration oil only.
Do not use polyolyester (POE) or any other type of mineral oil as a thread lubricant. These lubricants are not compatible with the PVE oil
used in this system and create oil sludge leading to equipment damage and system malfunction.
Do not add any contaminants inside the refrigerant piping.
2. Initially hand tighten the flare nuts using three (3) or four (4) turns.
3. To finish tightening the flare nuts, use both a torque wrench and a backup wrench.
4. After all the piping has been connected and the caps have been tightened, check for refrigerant gas leaks.
Loosening the Flare Nuts
Always use two (2) wrenches to loosen the flare nuts.
24
Tightening Torque (ft-lbs.)
13.0 - 18.0
6.35
9.52 24.6 - 30.4
39.8 - 47.7
12.7
45.4 - 59.3
15.88
19.05 71.5 - 87.5
Due to our policy of continuous product innovation, some specifications may change without notification.
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F
MULTI
F
MULTI MAX