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10. Installation
Refrigerant pipe installation
Pipe installation between the outdoor units
You will need branch joints, which is an optional accessory, for connecting in between outdoor units in order to
combine outdoor units in module.
For optimal distribution of the refrigerant, you must use Y-joint as branch joint for connecting outdoor units.
(Do not use T-joint)
When you install the outdoor units in module, there is no restriction of installation order among outdoor units.
Height of the connection pipe should be same or lower than the ones connected to the outdoor units.
Check the changes in comparison with the DVM
II
,
III
and
IV
.
Caution Correct installation Incorrect installation
Refrigerant pipes should
be connected at the
same or lower level than
the ones connected to
the outdoor unit.
Refrigerant pipes must
be connected by the side
of the product.
Straight section
should be 300mm or
more
Branch joint between
outdoor units must be
installed horizontally.
When the piping length
between outdoor unit
and the branch joint
exceeds 2m, install a
vertical trap as show in
the figure.
1 m or less
200 ~
300mm
Over 2 m
Over 2 m
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