Carrier 38NYV009E, Руководство по обслуживанию, Страница: 46 / 86

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FILE NO. SVM-07018
9-3-2. Refrigerant piping connection
<Flaring>
1. Cut the pipe with a pipe cutter.
Fig. 9-3-2
2. Insert a flare nut into the pipe, and flare the pipe.
Projection margin in flaring : A (Unit : mm)
Fig. 9-3-3
ial (wing nut type)
<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.
Fig. 9-3-4
9-3. Outdoor Unit
9-3-1. 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 for 09k and 15 m for 12k.
•
An allowable height level is up to 8 m for 09k,
10 m for 12k.
•
A place shere the drain water does not raise any
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. 9-3-1
Strong
wind
CAUTION
Do not apply excess torque.
Otherwise, the nut may crack depending on the
conditions.
•
•
6.35 0 to 0.5 1.0 to 1.5
90
°
Roughness
Obliquity
A
Die
Pipe
Warp
Outer dia.
R410A
of copper pipe
Flare nut Half union
Use a wrench to secure. Use a torque wrench to tighten.
Externally
threaded side
Internally
threaded side
Rigid (Clutch type)
Imper
Outer dia. R410A Conventional
of copper pipe tool used tool used
9.52 0 to 0.5 1.0 to 1.5
9.52 1.5 to 2.0
6.35 1.5 to 2.0
problem.