4AMX80E7V3B
R410A Split series
4PW38479-1A
Installation manual
4
O
UTDOOR
UNIT
INSTALLATION
GUIDELINES
■
Where a wall or other obstacle is in the path of the outdoor unit
air intake or exhaust airflow, follow the installation guidelines
below.
■
For any of the installation patterns below, the wall height on the
exhaust side should be
≤
1200 mm.
Wall facing one side
Side view (unit: mm)
Walls facing two sides
Top view (unit: mm)
Walls facing three sides
Top view (unit: mm)
S
ELECTING
A
LOCATION
FOR
INSTALLATION
OF
THE
INDOOR
UNITS
The maximum allowable length of refrigerant piping, and the
maximum allowable height difference between the outdoor and
indoor units, are listed below.
The shorter the refrigerant piping, the better the performance.
Connect so that the piping is as short as possible. Shortest
allowable length per room is 3 m.
If the outdoor unit is positioned higher than the indoor units
If the outdoor unit is positioned otherwise (i.e. lower than one or
more indoor units)
R
EFRIGERANT
PIPING
WORK
Installing the outdoor unit
■
When installing the outdoor unit, refer to
selecting the location" on page 2
installation drawings" on page 3
.
■
If drain work is necessary, follow the procedures below.
Method for installing drain piping
■
Use drain plug for drainage.
■
In cold areas, do not use a drain hose with the outdoor unit.
Otherwise, drain water may freeze, impairing the heating
performance.
1
See figure below for installation of the drain plug.
2
Connect a field supplied vinyl hose (internal diameter of 25 mm)
to the drain socket (A).
If the hose is too long and hangs down, fix it carefully to prevent
kinks.
Outdoor unit capacity class
4AMX80
Piping to each indoor unit
≤
25 m
Total length of piping between all units
≤
70 m
1
Level difference:
≤
7.5 m
2
Level difference:
≤
15 m
>100
>350
≤
1200
>50
>50
>350
>100
>100
>350
>50
All field piping must be installed by a licensed refrigeration
technician and must comply with relevant local and
national regulations.
NOTE
If drain holes of the outdoor unit are covered by a
mounting base or by floor surface, raise the unit in
order to provide a free space of more than 100 mm
under the outdoor unit.
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