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Manifold pipe
Pipe installation
Manifold pipe selection:
Total indoor capacity(100W)
More than 335, less than 506
More than 506, less than 730
More than 730
Less than 335
Model(optional)
TAU335HR
TAU506HR
TAU730HR
TAU1350HR
Outdoor unit type
The closest outdoor unit to the 1st manifold pipe will be the master unit.
Note:
1. When connecting the outdoor branch pipe and the outdoor, please pay attention to the
outdoor pipe dimension.
2. When adjusting the diameter among outdoor branch pipes and among the units, please do
execute at the branch pipe side.
3. Please install the outdoor branch pipe (gas/liquid side) in horizontal or vertical direction.
4. When welding with hard solder, please do blow nitrogen. If not, a number of oxides will be
produced and cause heavy damage. Besides, to prevent water and dust going into the pipe,
please make the brim as outer roll.
When doing the piping connection, please do the following:
• Please don't let the pipe and the parts in the unit collide each other.
• When connecting the pipes, close the valves fully.
• Bend the pipe as large semi-diameter as possible (over 4 times of the pipe diameter).
• Since the unit is charged with R-410A, the expanding oil must be ester oil, not the mineral oil.
• Protect the pipe end against water and impurity going into the pipes (Weld after being flatted
or sealed with adhesive tape).
• The connection between outdoor liquid pipe and the distributing pipe is flared type. Please
expand the pipe with the special tool for R-410A after installing the flared nut. But if the
projecting pipe length has been adjusted with the copper pipe gauge, you can use the original
tool to expand the pipe.
Installation procedure
Adhesive side
Prepare on site
Seal the connection and wrap the
heat insulator with adhesive tape
Cut off pipe with the cutter
Floor
Floor
Right
Horizontal
Cut off at the middle
Wrong
