–
63
–
90
°
Roughness Warp
Obliquity
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)
10-4-
3
. Refrigerant piping connection
<Flaring>
CAUTION
<Tightening connection>
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers. Then
tighten the nut with a spanner and torque wrench as
shown in the figure.
Outer dia. of copper pipe
R410A
∅
6.35
1.5 to 2.0
∅
9.52
∅
12.70
1.5 to 2.0
2.0 to 2.5
Outer dia.
A
of copper pipe
Rigid
Imperial
Æ
6.35
0
to
0.5
1.0 to 1.5
Æ
9.52
0
to
0.5
1.0 to 1.5
Æ
12.70
0
to
0.5
1.
0
to
1.5
A
Die
Pipe
Fig. 10-4-
4
Rigid (cluch type)
Imperial (wing nut type)
Half union
Flare nut
Externally
threaded side
Internally
threaded side
Use a wrench
to secure.
Use a torque wrench
to secure.
Fig. 10-4-
5
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 your 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.
CAUTION
1. Install the outdoor unit without anything blocking
the air discharging.
2. When the outdoor unit is installed in a place
exposed always to a strong wind like a coast or
on a high story of a building, secure
the normal fan operation using a duct or a wind
shield.
3. Specially in windy area, install the unit to prevent
the 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
•
An allowable length and height, please refer
form 1. SPECIFICATIONS.
•
A place where the drain water does not raise an
y
problem.
FILE NO. SVM-1
500
6
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.
•
To protect the outdoor unit from snow accumulation,
•
Do not use a double-stacked desing.
install a holding frame, and attach a snow protection
hood and plate.
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
