Installation of Unit

Connectingpipingstotheoutdoorunit.

1.Align the center of the pipings and sufficiently tighten the flare nut with fingers.

2.Finally tighten the flare nut with torque wrench until the wrench clicks.

When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench.

PIPE SIZE

TORQUE

1/4"

1.8~2.5 kgf·m

3/8"

3.4~4.2 kgf·m

1/2"

5.5~6.6 kgf·m

5/8"

6.3~8.2 kgf·m

3/4"

9.9~12.1 kgf·m

Gas side piping

Outdoor unit

Liquid side piping

Torque wrench

ENGLISH

Connectingthecablestotheoutdoorunit

1.Open the control board cover from the outdoor unit by removing the screws.

2.Connect wires to the terminals on the control

board individually and secure the cables onto the control board with clamp.

3. Secure the control board cover to the original position with the screws.

CAUTION: Perform grounding

This product should be grounded.

Defective grounding could cause an electric shock.

Terminals on the indoor unit

3(L1)

4(L2)

5

6

7

 

Terminals on the outdoor unit

1(L1)

2(L2)

 

3(L1)

4(L2)

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminal block

Over 5mm (2")

Cover control

Conduit panel

Connecting cable

Power supply cord

POWER INPUT

(America, Canada Only)

 

(America, Canada Only)

Installation Manual 15

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Image 16
LG Electronics 3828A20025U manual Connecting pipings to the outdoor unit, Connecting the cables to the outdoor unit