7
4.2 Installation Position
1. Horizontal Installation
Locate the “Y” union pipe section on the same horizontal plane. (Inclination within 30
o
)
Make the straight section a minimum of 1.6ft (0.5m) after the vertical bend.
2. Vertical Installation
Straight section of the pipe connection on the outdoor unit side is made as follows:
a) The collective pipe connection part is installed upward; the straight section must be a minimum of 1.6ft (0.5m).
b) The collective pipe connection part is installed downward; the straight section must be a minimum of 1.6ft
(0.5m).
3. Piping from Multi-Kit to Indoor Unit
Upward
Downward
Horizontally
Total Straight Section
Min. 1.6ft (0.5m)
Inclination
within 30
o
30
o
A
Inclination
(View from A)
INCORRECT
Total Straight Section
Min. 1.6ft (0.5m)
Total Straight Section
Min. 1.6ft (0.5m)
Upward
Downward
Outdoor Unit
Outdoor Unit
Multi-Kit
Example: Recommended From each Indoor Unit to Multi-Kit, use hard copper pipes that bend to prevent kinking.
Bending Pipe
Connection Pipe
Example: Not Recommended
Indoor Unit
Straight piping does not allow for movement of the piping when it expands
or contracts.
Hard Copper Piping will expand and contract due
to temperature changes in piping.
Hard Copper Piping will expand and contract due to
temperature changes in piping.
NOTICE:
[ Fixing for Liquid Piping and Gas Piping ]
Multi-Kit
Install Horizontally
NOTICE:
Gas Piping
Installing Part for Piping
Liquid Piping
When on-site piping is installed using
soft or hard copper, make sure that the
piping is installed to allow for movement
of the piping. Temperature changes cause
contraction
and expansion of the piping.
Due to the properties of hard copper piping,
expansion and contraction take place during
seasons of heat and cold. Do not strap gas
refrigerant and piping containing liquids together
as kinks.
