Installation guide

14 Multi Type Air Conditioner
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.
1. When piping installation work you
must be used the connector.
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.
Connecting Pipes to the Outdoor Unit
Connecting Pipes to the Outdoor Unit
Checking the Drainage
Indoor Units Gas side Liquid side
7K Ø9.52(3/8") Ø6.35(1/4")
9K Ø9.52(3/8") Ø6.35(1/4")
12K Ø9.52(3/8") Ø6.35(1/4")
18K Ø12.7(1/2") Ø6.35(1/4")
24K Ø12.7(1/2") Ø6.35(1/4")
Indoor Units
Gas
AB
Ø9.52 Ø12.7
A
B
Connector
Gas side piping
Torque
wrench
Outdoor unit Outdoor unit
Liquid side piping
Connector
C-UNIT
B-UNIT
A-UNIT
Gas side piping
Liquid side piping
Torque wrench
B-UNIT
A-UNIT
*Connecting pipe size