15
When multiple indoor units are served by a single
outdoor unit, the refrigerant piping must be connect-
ed using either individual branch pipes or four-port
header kits. Optional branch pipes V8IDBP01 and
V8IDBP02, and header kits V8HDRK04 are ordered
separately.
Refer to the instruction manual for detailed installa-
tion instructions for each.
The header kits can be used to connect a maximum
of four indoor units to the outdoor unit. When the sys-
tem includes ve, six, seven, or eight indoor units,
two four-port header kits must be used. When the
system includes nine indoor units, two header kits
and a branch joint is used.
When using branch pipes to connect multiple indoor
units with a single outdoor unit, each indoor unit re-
quires a separate branch pipe to connect both the
liquid and gas (vapor) line to the system. Install these
optional devices per the installation instructions pro-
vided with them. See the piping schematics on the
following pages.
Provide 24 to 36 inches (610 to 914 mm) of straight
pipe before and after each header pipe kit to avoid
creating refrigerant turbulence and ash points. Fail-
ure to follow 24 inch (610 mm) minimum guideline
can lead to reduced capacity and equipment dam-
age.
Support piping on both sides of the header kit.
V8HDRK04
Outdoor
Unit
Figure 17. Connection to Header Pipe Kit
Figure 18. 24 to 36 inches (610 to 914 mm) of Straight Pipe Before and After Header Pipe Kit
To
Indoor
Unit
>24 in. (610 mm) required
>36 in. (914 mm) preferred
before the first elbow or
branch pipe conection
From Outdoor Unit
>24 in. (610 mm) required
>36 in. (914 mm) preferred
before the first elbow
To
Indoor
Unit
To
Indoor
Unit
To
Indoor
Unit
To Next Page
Loading...
