Daikin ATXS35BVMB [11/14] Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand then tighten them fully with the torque wrenches use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas
Макгруп McGrp.ru
Задайте вопрос
Зарегистрироваться

Daikin ATXS35BVMB [11/14] Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand then tighten them fully with the torque wrenches use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas

Daikin FTX25BVMB [11/14] Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand then tighten them fully with the torque wrenches use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas
■English 10
Refrigerant piping work
,
install as described in the installation manual supplied with the Multi outdoor unit.
1.
Flaring the pipe end.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface facing downward so that the chips do not enter the
pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
■
■■
■
Warning
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R-410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
2.
Refrigerant piping.
1) Align the centres of both flares and tighten the flare nuts 3 or 4 turns by
hand. Then tighten them fully with the torque wrenches.
• Use torque wrenches when tightening the flare nuts to prevent damage
to the flare nuts and escaping gas.
2) To prevent gas leakage, apply refrigeration machine oil on both inner and outer surfaces of the flare. (Use refrigeration oil
for R-410A)
2-1.
Caution on Piping Handling
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender
for bending.
(Bending radius should be 30 to 40 mm or larger.)
With a Multi indoor unit
(Cut exactly at
right angles.) Remove burrs
Set exactly at the position shown below.
A
IMPERIAL
RIGID
1.0 mm
0.5 mm
Flaring
A
Die
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
Flare nut tightening torque
Gas side Liquid side
3/8 inch 1/4 inch
32.7-39.9N
l
m 14.2-17.2N
l
m
(333-407kgf
l
cm) (144-175kgf
l
cm)
Valve cap tightening torque
Gas side Liquid side
3/8 inch 1/4 inch
21.6-27.4N
l
m 21.6-27.4N
l
m
(220-280kgf
l
cm) (220-280kgf
l
cm)
Coat here with refrigeration machine oil
Torque wrench
Piping union
Flare nut
Spanner
Wall
If no flare cap is
available, cover
the flare mouth
with tape to keep
dirt or water out.
Be sure to
place a cap.
Rain
01_EN_2P098777-1.fm Page 10 Friday, October 18, 2002 1:26 PM

Содержание

Похожие устройства

Скачать