FILE NO. SVM-13027
– 54 –
10-4-3. Refrigerant piping connection
<Flaring>
1. Cut the pipe with a pipe cutter.
Fig. 10-4-3
2. Insert a flare nut into the pipe, and flare the pipe.
·
Projection margin in flaring : A (Unit : mm)
Fig. 10-4-4
ial (wing nut type)
10-4. Outdoor Unit
10-4-1. Installation place
•
A place which provides the spaces around the
outdoor unit as shown in the left diagram.
•
A place which can bear the weight of the outdoor
unit and does not allow an increase in noise level
and vibration.
•
A place where the operation noise and discharged
air do not disturb users neighbors.
•
A place which is not exposed to a strong wind.
•
A place free of a leakage of combustible gases.
•
A place which does not block a passage.
•
When the outdoor unit is to be installed in an
elevated position, be sure to secure its feet.
•
An allowable length of the connecting pipe is up
10 m.
•
An allowable height level is up to 8 m.
•
A place where the drain water does not raise any
problem.
6.35
0 to 0.5
1.0 to 1.5
12.7 0 to 0.5 1.0 to 1.5
90
°
Roughness
Obliquity
A
Die
Pipe
Warp
Outer dia.
R410A
of copper pipe
6.35
1.5 to 2.0
12.7 2.0 to 2.5
Rigid (Clutch type)
Imper
Outer dia. R410A Conventional
of copper pipe tool used tool used
10-4-2. Precautions about Installation in
Regions with Snowfall and Cold Temperatures
Do not use the supplied drain nipple for draining water.
Drain the water from all the drain holes directly.
hood and plate.
Do not use a double-stacked design.
To protect the outdoor unit from snow accumulation,
install a holding frame, and attach a snow protection
Snow protection plate
Snow protection hood
At least
50 cm
Snow accumulation line
Holding frame
Front
Anchor
bolts
Install at least 50 cm
above the snow
accumulation line.
Fig. 10-4-1
CAUTION
1. Install the outdoor unit without anything blocking
the air discharging.
2. When the outdoor unit is installed in a place
exposed always exposed to strong wind like a
coast or on a high storey of a building, secure
the normal fan operation using a duct or a wind
shield.
3. In particularly windy areas, install the unit such
as to avoid admission of wind.
4. Installation in the following places may result in
trouble.
Do not install the unit in such places.
•
A place full of machine oil.
•
A saline-place such as the coast.
•
A place full of sulfide gas.
•
A place where high-frequency waves are likely
to be generated as from audio equipment,
welders, and medical equipment.
Fig. 10-4-2
Strong
wind
