Samsung AR09KSWSJWKNCV, Руководство пользователя и инструкция по установке, Страница: 51 / 63

1. Connect each assembly pipe to correct valve on the outdoor unit and tighten
the flare nut.
2. Tighten the flare nut first with your hands, and then with a torque wrench,
applying the following torque.
Outdoor unit Indoor unit
Gas pipe side
Liquid pipe side
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“stand by mode”. Do not turn on the system!
This is necessary for better vacuum (full OPEN position of
Electronic Expansion Valve - EEV -).
3. Connect the hose of the low-pressure side of manifold gauge to a gas
service port as seen in the picture.
4. Open the valve of the low pressure side of manifold gauge
counterclockwise.
5. Evacuate the air in the connected pipes using the vacuum pump for
about15 minutes.
X Make sure that pressure gauge shows 400 microns after about
10 minutes.
This procedure is very important to avoid a leak.
X Close the valve of the low pressure side of manifold gauge clockwise.
X
Turn off the vacuum pump.
X Check for 2 minutes if there is any pressure change.
X
Remove the hose of the low pressure side of manifold gauge.
6. Set a valve cork of liquid and gas service port to the open position.
Vacuum
Pump
Manifold gauge
Valve
Gas service port
<Low pressure>
Liquid service port
<High pressure>
(Backward flowing
prevention)
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Add refrigerant charge according to table below:
If you use a pipe longer than 24.6ft(7.5m),
‘A’ g of refrigerant R-410A must be added for each extra meter.
If you use a pipe shorter than 24.6ft(7.5m),
The evacuate time is normal.
Refer to the Service Manual for further details.
Adding Refrigerant
Outer
Diameter
Torque
/tN
f UtMC
LHGtDN
ø1/4 inch
(ø6.35mm)
14~18
10.1~13.0
(140~180)
ø3/8 inch
(ø9.52mm)
34~42
25.3~31.1
(350~430)
ø1/2 inch
(ø12.70 mm)
49~61
36.2~44.8
(500~620)
ø5/8 inch
(ø15.88mm)
68~82
49.9~60.0
(690~830)
Model A
77
09/12/18
77
15
77
24
77
40
Evacuating the connected pipes
English-50