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FXSQ-PAVE EDFMT391737
53
3P432203-4B
8
•
Before brazing refrigerant piping, have nitrogen
through the refrigerant piping and substitute air with nitro-
gen (NOTE 1)
(Refer
to
Fig.
12). Then, carry out brazing
(NOTE 2).
After all the brazing works are
carry out
connection with the indoor unit.
(Refer
to
Fig.
11)
Pressure reducing valve
Nitrogen
Taping
Stop valve
Brazing place
Nitrogen
Refrigerant piping
Fig.
12
NOT
E
1.
The proper pressure for having nitrogen
through the
piping is approximately 0.02 MPa, a pressure that makes
one feel like slight breeze and can be obtained through a
pressure reducing valve.
2.
Do not use
when brazing refrigerant piping.
Use phosphor copper brazing
metal (BCuP-2: JIS Z
3264/B-Cu93P-710/795: ISO 3677) that does not require
(If chlorinated
is used, the piping will be corroded and,
in addition if
is contained, the refrig erant oil will
be deteriorated and the refrigerant circuit will be affected
badly.)
3.
When carrying out leakage test of refrigerant piping and
the indoor unit after the installation of indoor unit is
-
ished,
the connecting outdoor unit installation
manual for test pressure.
Refer to also the outdoor unit installation manual or techni-
cal document for refrigerant piping.
4.
In case of refrigerant shortage due to forgetting additional
refrigerant charge etc., it will result in malfunc tion such as
does not cool or does not heat.
Refer to the outdoor unit installation manual or technical
document for refrigerant piping.
CAUTION
Do
not
use
antioxidant
when
brazing
piping.
It may result in malfunction of components and clogging of
piping due to residue.
7.
DRAIN
PIPING
WORK
(1)
Carry
out
drain
piping.
Carry out drain piping so that drainage is ensured.
•
Select the piping diameter equal to or larger than
(except for riser) that of the connection piping (polyvi-
nyl chloride piping, nominal diameter 25 mm, outside
diameter 32 mm).
•
Install the drain piping as short as possible with down-
ward inclination of 1/100 or more and without such that
air may not stagnate.
(Refer
to
Fig.
13) (It may cause
abnormal sound such as bubbling noise.)
•
After leak test, referring to
Fig.
11, insulate both the gas
and liquid piping connection with the attached joint in-
sulating material (4) and (5) to prevent the pipings from
getting exposed.
Then, tighten both the ends of insulating material with the
clamp (8).
•
Wrap the sealing material (Medium) (7) around the joint
insulating material (4) and (5)
nut section), both the
gas and liquid piping.
•
Make sure to bring the seam of joint insulating material (4)
and (5) to the top.
Joint insulating
material (4)
(accessory)
Gas piping
Liquid piping
Liquid side piping insulating method
Indoor unit
Indoor unit
Clamp (8)
(accessory)
Sealing material
(7) Medium
(accessory)
Clamp (8)
(accessory)
Piping
insulating
material
(field supply)
Gas side piping insulating method
Joint insulating
material (5)
(accessory)
Piping insulating
material (main unit)
Bring the
seam
to the top.
Flare nut
connection
Piping
insulating
material
(field supply)
Do not leave
clearance.
Flare nut
connection
Bring the
seam
to the top.
Do not leave
clearance.
Piping insulating
material (main unit)
Sealing material
(7) Medium
(accessory)
Wind around the
piping until top of the
flare nut connection,
beginning at the base.
Do not expose the
piping in order to
prevent the vapor
condensation.
Tighten the portion
where overlapped by
the piping insulating
material.
Tighten the portion
where overlapped by
the piping insulating
material.
Do not expose the
piping in order to
prevent the vapor
condensation.
Wind around the
piping, beginning
at the base.
Fig.
11
Summary of Contents for FXSQ-PAVE
Page 1: ...FXSQ PAVE EDFMT391737 201709 Engineering Data 50 60 Hz...
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Page 10: ...FXSQ PAVE EDFMT391737 8 3 Dimensions FXSQ20PAVE FXSQ25PAVE FXSQ32PAVE 3D095725B Unit mm...
Page 11: ...FXSQ PAVE EDFMT391737 9 FXSQ40PAVE 3D095726B Unit mm...
Page 12: ...FXSQ PAVE EDFMT391737 10 FXSQ50PAVE 3D096164B Unit mm...
Page 13: ...FXSQ PAVE EDFMT391737 11 FXSQ63PAVE FXSQ80PAVE 3D095426D Unit mm...
Page 14: ...FXSQ PAVE EDFMT391737 12 FXSQ100PAVE FXSQ125PAVE 3D095427D Unit mm...
Page 15: ...FXSQ PAVE EDFMT391737 13 FXSQ140PAVE 3D095727C Unit mm...
Page 22: ...FXSQ PAVE EDFMT391737 20 9 Fan Performances FXSQ20PAVE FXSQ25PAVE 3D095855A...
Page 23: ...FXSQ PAVE EDFMT391737 21 FXSQ32PAVE 3D095856A...
Page 24: ...FXSQ PAVE EDFMT391737 22 FXSQ40PAVE 3D095857A...
Page 25: ...FXSQ PAVE EDFMT391737 23 FXSQ50PAVE 3D095858A...
Page 26: ...FXSQ PAVE EDFMT391737 24 FXSQ63PAVE 3D095859A...
Page 27: ...FXSQ PAVE EDFMT391737 25 FXSQ80PAVE 3D095860A...
Page 28: ...FXSQ PAVE EDFMT391737 26 FXSQ100PAVE 3D095861A...
Page 29: ...FXSQ PAVE EDFMT391737 27 FXSQ125PAVE 3D095862A...
Page 30: ...FXSQ PAVE EDFMT391737 28 FXSQ140PAVE 3D095863A...
Page 32: ...FXSQ PAVE EDFMT391737 30 FXSQ32PAVE 3D095847A...
Page 33: ...FXSQ PAVE EDFMT391737 31 FXSQ40PAVE 3D095848A...
Page 34: ...FXSQ PAVE EDFMT391737 32 FXSQ50PAVE 3D095849A...
Page 35: ...FXSQ PAVE EDFMT391737 33 FXSQ63PAVE 3D095850A...
Page 36: ...FXSQ PAVE EDFMT391737 34 FXSQ80PAVE 3D095851A...
Page 37: ...FXSQ PAVE EDFMT391737 35 FXSQ100PAVE 3D095852A...
Page 38: ...FXSQ PAVE EDFMT391737 36 FXSQ125PAVE 3D095853A...
Page 39: ...FXSQ PAVE EDFMT391737 37 FXSQ140PAVE 3D095854A...
Page 40: ...FXSQ PAVE EDFMT391737 38 11 Sound Levels FXSQ20PAVE FXSQ25PAVE FXSQ32PAVE 4D095804B 4D095805B...
Page 41: ...FXSQ PAVE EDFMT391737 39 FXSQ40PAVE FXSQ50PAVE 4D095806B 4D095807B...
Page 42: ...FXSQ PAVE EDFMT391737 40 FXSQ63PAVE FXSQ80PAVE 4D095808B 4D095809B...
Page 43: ...FXSQ PAVE EDFMT391737 41 FXSQ100PAVE FXSQ125PAVE 4D095810B 4D095811B...
Page 44: ...FXSQ PAVE EDFMT391737 42 FXSQ140PAVE 4D095812B...
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