Daikin GYEQ20AN, Руководство по обслуживанию

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SiAUY361411EA Installation Work Manual
Device Overview 44
0FGHP-EN0801 DGJ002
– 16 –
7 Installing the Outdoor Unit
„
Performing piping work using the refrigerant branch kits (REFNET Joints and Headers)
z
Be sure to use refrigerant branch kits designed specifically for use with R410A.
z Be sure to heat-insulate the branch kits in accordance with the supplied manual.
(1) REFNET Joints
(Gas side/fluid side branching pipes)
022620-00E
Local pipe
Local pipe
Outlet (1)
Outlet (2)
To following branching pipe
or indoor unit
Gas-side/liquid-side
branching pipe
(optional)
To outdoor unit
z REFNET Joints should be installed so that the
b r a n c h e s a r e a r r a n g e d h o r i z o n t a l l y o r
vertically.
022621-00E
A
(Horizontal
axis)
(A-arrow view drawing)
Within a range
of ±30˚ or vertical
(2) REFNET Headers
(Gas side branching pipe) (Fluid side branching
pipe)
022622-00E
Local pipe
Local pipe
Local pipe
Local pipe
To outdoor
unit
To outdoor
unit
To indoor
unit
To indoor
unit
Gas-side branching pipe
(optional)
Liquid-side branching pipe
(optional)
z If the number of actually connected indoor
units is smaller than the maximum number of
indoor units that can be connected to the
branching pipe, connect a closed pipe to each
of the unnecessary branches.
Closed pipe
(included in kit)
Closed pipe
(included in kit)
B
022639-00E
z REFNET Headers should be installed so that
the branches are arranged horizontally.
022624-00E
(Horizontal
axis)
(B-arrow view drawing)
z If you use a locally procured pipe that does not
e x a c t l y m a t c h t h e b r a n c h s i z e , c u t t h e
connecting portion using a pipe cutter as
shown in the figure below.
022625-00X
z
Make sure that the gas side and fluid side kits
are for the R410A.
* "Gas side" refers to both suction gas side and discharge gas side.