LG LC098HV4 Engineering Manual page 73

Single Zone Cassette Outdoor Unit Connections
1. Remove the connection cover from the unit by loosening the screws.
2. Align the center of the refrigerant pipe and corresponding connection.
3. Place a couple of drops of refrigerant oil on the opening rim of the flare before assembling. Ensure you do not add any contaminants.
Tighten the flare nut initially by hand.
4. Finish tightening the flare nut with a torque wrench until the wrench clicks. See page 70 for torque information.
When tightening the flare nut with a torque wrench, ensure the direction
for tightening follows the arrow on the wrench.
Figure 58: Removing the Refrigerant Piping Connection Cover
(LUU097HV, LUU127HV).
Figure 60: LUU097HV, LUU127HV, LUU187HV, LUU189HV, LUU247HV
Refrigerant Piping Connections.
INSTALLATION & LAYOUT BEST PRACTICES
Tubing cover
Outdoor unit
Liquid side piping
(Smaller diameter)
Torque wrench
Gas side piping
(Bigger diameter)
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.
Refrigerant Piping System Layout
Figure 59: Removing the Refrigerant Piping Connection Cover
(LUU187HV, LUU189HV, LUU247HV).
Figure 61: LUU367HV, LUU427HV Refrigerant Piping Connections.
Connection cover
Piping can be installed
in one of four different
layouts.
INTRODUCTION | 73