Loading ...
Loading ...
Loading ...
Due to our policy of continuous product innovation, some specications may change without notication.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
REFRIGERANT DESIGN | 65
Refrigerant Piping Design & Layout Best Practices
Refrigerant Piping System Layout
INSTALLATION & LAYOUT BEST PRACTICES
Single Zone Art Cool Premier Outdoor Unit Connections
1. Remove the tubing cover from the unit by loosening the fastening 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. 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.
Tubing cover
Figure 28: Pipe Attachment.
Outside Diameter (Inches) Torque (Lbs.-ft)
1/4 13-18
3/8 24.6-30.4
1/2 39.8-47.7
5/8 45.6-59.3
3/4 71.6-87.5
Table 38: Torque Wrench Tightening.
Outdoor unit
Gas side piping
(Bigger diameter)
Liquid side piping
(Smaller diameter )
Torque wrench
When tightening the are nut with a torque wrench, ensure the direction
for tightening follows the arrow on the wrench.
Figure 29: LAU090HYV3/LAU120HYV3 Outdoor Unit Connection Cover
Removal.
Figure 30: LAU150HYV3, LAU180HYV3, LAU240HYV3 Outdoor Unit
Connection Cover Removal.
Figure 31: LAU090HYV3/LAU120HYV3 Outdoor Unit Piping Connection.
Figure 32: LAU150HYV3, LAU180HYV3, LAU240HYV3 Outdoor Unit
Piping Connection.
Liquid side piping
(Smaller diameter)
Gas side piping
(Bigger diameter)
Piping
Connections
Cover
Loading ...
Loading ...
Loading ...