ascon IM-5MSY-1009-ACSON Manual De Instalación página 9

Piping Works
• Do not use contaminated or damaged copper tubing. Do not
remove plastic, rubber plugs and brass nuts from the valves,
fi ttings, tubings and coils until you are ready to connect
suction or liquid line into valves or fi ttings.
• If any brazing work is required, ensure that the nitrogen gas
is passed through coil and joints while the brazing work is
being done. This will eliminate soot formation on the inside
walls of the copper tubings.
• Cut the connection pipe with a pipe cutter.
1/4t
• Remove burrs from cut edges of the pipes with remover.
Hold the end of the pipe downwards to prevent metal chips
from entering the pipe.
Remove burr indoor
• Insert the fl are nuts, mounted on the connection parts of both
the indoor unit and outdoor unit onto the copper pipes.
• Flare the pipe with extra length above the fl aring tool as
shown in the table.
Copper tube
Swaging block
Ø Tube, D
Inch
1/4"
3/8"
1/2"
5/8"
3/4"
• The flared edge must be even and not cracked or
scratched.
1 IM 5MSY-1009(1)_EN.indd 07 1 IM 5MSY-1009(1)_EN.indd 07
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Cutting copper tube
A (mm)
mm Imperial Rigid
6.35 1.3
9.52 1.6
12.70 1.9
15.88 2.2
19.05 2.5
Piping Connection To The Units
• The outdoor unit is equipped with two to four sets of fl are
joints depending on O/D unit model. Refer to the table below
for fl are joint size and location.
PIPE CONNECTION
Gas Pipe A
Liquid Pipe A
Gas Pipe B
Liquid Pipe B
5MSY20B/BR
PART NO.: 08024 106821
Model
5MSY20B/BR
5MSY25B/BR
5MSY30B/BR
• In the case where the gas pipe from the indoor unit does not
match the outdoor fl are joints, fl are joint connectors shall be
used. The piping connection size shall follow the size of the
indoor unitʼs fl are joint. The connector should be connected
as shown in fi gure.
FLARE JOINT
INDOOR
PIPING
SPANNER
• Align the center of the piping and tighten the fl are nut
0.7 suffi ciently with fi ngers.
• Finally, tighten the fl are nut with the torque wrench until
1.0
the wrench clicks.
1.3
• Do not exceed the recommended tightening torque as this
may cause damage on the fl are surface and refrigerant
1.7
leakage.
2.0
Pipe Size mm/(in)
6.35 (1/4)
9.52 (3/8)
12.70 (1/2)
15.88 (5/8)
19.05 (3/4)
1-7
PIPE CONNECTION PIPE CONNECTION
Gas Pipe A
Liquid Pipe A
Gas Pipe B
Liquid Pipe B
Gas Pipe C
Liquid Pipe C
5MSY25B/BR 5MSY30B/BR
PART NO.: 08024 106822 PART NO.: 08024 106823
Pipe A B C
Liquid 1/4" 1/4" -
Gas 1/2" 1/2" -
Liquid 1/4" 1/4" 1/4"
Gas 3/8" 1/2" 1/2"
Liquid 1/4" 1/4" 1/4"
Gas 3/8" 3/8" 1/2"
CONNECTOR
FLARE NUT
TORQUE WRENCH
Torque Nm/(ft-lb)
18 (13.3)
42 (31.0)
55 (40.6)
65 (48.0)
78 (57.6)
Gas Pipe A
Liquid Pipe A
Gas Pipe B
Liquid Pipe B
Gas Pipe C
Liquid Pipe C
Gas Pipe D
Liquid Pipe D
D
-
-
-
-
1/4"
1/2"
FLARE
TUBE
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