installing the unit _25
ENGLISH
Piping works among outdoor units
• The additional branch joints are needed for module installation of the outdoor units.
• When outdoor units are installed in module, there is no designation of outdoor unit’s location
according to capacity.
• The connected piping should be positioned at the same level with pipe cover hole or lower.
Cautions Correct piping work Wrong piping work
The refrigerant piping
should be the
same level or lower
than connecting
position of piping to
outdoor units.
Piping work should
be run with side
direction for better
uniform distribution
of refrigerant and oil
like next diagram.
Outdoor joint kits
should be installed in
a horizontal direction,
even it is a low
pressure pipe.
When the piping
length between
outdoor and branch
joints is 2m(6´ 7˝) or
more, a vertical trap
has to be installed like
right diagram.
2m(6´ 7˝) or over
2m(6´ 7˝) or over
Less than 1m(3´ 3˝)
200~300mm
(7-3/4~11-3/4˝)
Minimum
100mm(3-7/8˝)
Horizontal length
= over 100mm(3-7/8˝)
DVM PLUS3_IM_E_31180-1.indd 25 2009-10-16 ｿﾀﾈﾄ 2:10:27
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