Installation Manual 23
ENGLISH
Connecting Pipes to the Indoor Unit
Piping Connection
Connection of the pipes-Outdoor
1. When piping installation work you must be
used the connector.
Connecting pipe size
Indoor Units Gas side Liquid side
12, 18 kBtu/h Ø12.7(1/2") Ø6.35(1/4")
24, 30, 36 kBtu/h Ø15.88(5/8") Ø6.35(1/4")
48 kBtu/h Ø19.05(3/4") Ø9.52(3/8")
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.
CAUTION:
Use two wrenches and
tighten with regular torque.
• In case of 100 kBtu/h Outdoor Unit: Use Short
Tube for connecting 48 kBtu/h indoor unit to
the outdoor unit, not the Branch Distributor.
• In case of 150 kBtu/h Outdoor Unit: Use Y
Connector for connecting 48 kBtu/h indoor
unit to the Branch Distributor.
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