Step 8 Installing Oil Traps - Samsung AC BXAP G Series Installation Manual

5 Check that the flaring is correct, referring to the
illustrations below for examples of incorrect flaring.
1
2
Damaged
Inclined
Correct
Surface
CAUTION
• Keep the piping length at a minimum to minimize the
additional refrigerant charge due to piping extension.
• When connecting the pipes, make sure that surrounding
objects do not interfere with or contact them to prevent
refrigerant leakage due to physical damage.
• Make sure that the spaces where the refrigerant pipes
are installed comply with national gas regulations.
• Be sure to perform works such as additional refrigerant
charging and pipe welding under the conditions of
good ventilation.
• Be sure to perform welding and piping works for
mechanical connections under the conditions that the
refrigerant does not circulate.
• When reconnecting the pipes, make sure to perform
flared-jointing newly to prevent refrigerant leakage.
• When working on the refrigerant pipes and the flexible
refrigerant connectors, be careful that they are not
damaged physically by surrounding objects.
• For installation with handling the R-32 refrigerant,
use the special tools for the R32 refrigerant (manifold
gauge, vacuum pump, charging hose, etc.).
• During tests never pressurize the appliances with
a pressure higher than the maximum allowable
pressure(as indicated on the nameplate of the unit).
• Never directly touch any accidental leaking refrigerant.
This could result in severe wounds caused by frostbite.
• Never install a dryer to this unit in order to guarantee
its lifetime.
• If the pipes require brazing ensure that OFN(Oxygen
Free Nitrogen) is flowing through the system.
•
•
•
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Step 8 Installing oil traps

Check the following list and install an oil trap.
•
•
Cracked Uneven
Thickness
•
diameter
(D, mm)
Radius of
curvature
(R, mm)
•
•
Outdoor Unit
Nitrogen blowing pressure range is 0.02 to 0.05 MPa.
If you need a pipe longer than specified in piping codes
and standards, you must add refrigerant to the pipe.
Otherwise, the indoor unit may freeze.
While removing burrs, put the pipe face down to make
sure that the burrs do not get in to the pipe.
Based on cooling operation, install it on the gas side
pipe only.
Install the oil trap only in between the outdoor unit
and the first branch joint and it should be installed at
every 10 m.
Radius of curvature (R) on the oil trap are as follows;
Pipe
12.70 15.88 19.05
25 and 32 and 38 and
over over over
When the indoor unit is installed at a higher place than
the outdoor unit
R
22.23 25.40 28.60 31.75
41 and 51 and 57 and 60 and
over over over over
Indoor Unit
Oil trap (Install it at
H
every 10 m)
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