LG LS090HEV1 Installation Manual

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Due to our policy of continuous product innovation, some specifications may change without notification.
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REFRIGERANT PIPING CONNECTIONS
Single Zone Wall Mount Outdoor Unit Connections (090HEV, 090HEV1,
120HEV, 120HEV1, 240HEV, 240HEV1, 090HXV, 120HXV)
1. Remove the tubing cover by loosening the fastening screws (Figures 57 to 59).
2. Align the center of the refrigerant pipe and corresponding connection as shown in Figure 60.
3. Refer to Figures 61 to 63 for correct liquid and gas pipe attachment onto outdoor unit.
4. 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.
5. Finish tightening the flare nut with a torque wrench until the wrench clicks. Follow the guidelines as outlined in Table 31 for the amount of
torque to use.
Outdoor Unit Connections
Table 31: Torque Wrench Tightening
Figure 57: LSU90-120HEV/HEV1, LSU90-
120HXV Outdoor Unit Connection Cover Removal
Figure 58: LSU180HEV/HEV1 Outdoor Unit
Connection Cover Removal
Conduit cover
Piping connection
Tubing cover
Terminal Block
1(L1) 2(L2)1(L1) 2(L2) 3
Power
connecting
cable
Power
cord
Cord clamp
90-120HEV1
1(L) 2(N)LN 3
90-120HXV
• Do not thread liquid or gas
piping through bracket used to
hold main power cables.
• When tightening the flare nut
with torque wrench, ensure the
direction for tightening follows
the arrow on the wrench.
Figure 59: LSU240HEV/HEV1 Outdoor Unit
Connection Cover Removal
Tubing
Cover
Terminal
Block Cover
Terminal Block
Figure 60: Pipe Attachment.
Figure 61: LSU90-120HEV/HEV1, LSU90-
120HXV Outdoor Unit Piping Connection.
Figure 62: LSU180HEV/HEV1 Outdoor Unit
Piping Connection.
Torque wrench
Liquid side piping
(Smaller diameter)
Gas side piping
(Bigger diameter)
Outdoor unit
Liquid side piping
(Smaller diameter)
Torque wrench
Gas side piping
(Bigger diameter)
Outdoor unit
Figure 63: LSU240HEV/HEV1 Outdoor Unit
Piping Connection.
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
Terminal Block
Bracket for
Main Power Cables
Tubing
Cover
Screw
Outdoor Unit
Torque wrench
Gas Piping
Liquid Piping
Bracket for Main
Power Cables
(Larger diameter)
(Smaller diameter)

LG LS090HEV1 Specifications

General

Brand	LG
Model	LS090HEV1
Category	Air Conditioner
Language	English