Checking The Drainage - LG Multi Type Installation Manual

Connecting Pipes to the Outdoor Unit
Connecting Pipes to the Outdoor Unit
1. When piping installation work you
must be used the connector.
Indoor Units
*Connecting pipe size
Indoor Units
7K
9K
12K
18K
24K
2. Align the center of the pipings and
sufficiently tighten the flare nut by
hand
3. 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.
Outdoor unit
Connector
Torque
wrench

Checking the Drainage

1) Checking the Drainage
1. Check the drainage.
• Spray one or two glasses of water upon
the evaporator.
• Ensure that water flows drain hose of
indoor unit without any leakage.
14 Multi Type Air Conditioner
Gas
A B
Ø9.52 Ø12.7
Gas side Liquid side
Ø9.52(3/8") Ø6.35(1/4")
Ø9.52(3/8") Ø6.35(1/4")
Ø9.52(3/8") Ø6.35(1/4")
Ø12.7(1/2") Ø6.35(1/4")
Ø12.7(1/2") Ø6.35(1/4")
Liquid side piping
A-UNIT
B-UNIT
C-UNIT
Gas side piping
A
Outdoor unit
B
Connector
A-UNIT
Gas side piping
B-UNIT
Liquid side piping
Torque wrench