Handleiding
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English-42
Evacuating the connected pipes
The outdoor unit is loaded with sufficient R-410A refrigerant. Do not vent R-410A into atmosphere:
it is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975.
You should evacuate the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor.
It may cause reduction of cooling capacity and malfunction. Use Vacuum Pump as seen in the picture.
• When installing, make sure there is no leakage. When recovering the refrigerant, ground the
compressor first before removing the connection pipe. If the refrigerant pipe is not properly
connected and the compressor works with the service valve open, the pipe inhales the air and it
makes the pressure inside of the refrigerant cycle abnormally high. It may cause explosion and injury.
CAUTION
1. Connect each assembly pipe to the appropriate 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.
• Excessive torque can be cause of gas leakage.
NOTE
Outdoor unit Indoor unit
Gas pipe side
Liquid pipe side
Outer Diameter
Torque
N•m kgf•cm
Ø 6.35 mm 14 ~ 18 140 ~ 180
Ø 9.52 mm 34 ~ 42 350 ~ 430
Ø 12.70 mm 49 ~ 61 500 ~ 620
Ø 15.88 mm 68 ~ 82 690 ~ 830
3. Connect the charging 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 about 15 minutes.
Make sure that pressure gauge shows -0.1 MPa(-76 cmHg) after
about 10 minutes.
This procedure is very important to avoid a gas leak.
Close the valve of the low pressure side of manifold gauge
clockwise.
Turn off the vacuum pump.
Check for 2 minutes if there is any pressure change.
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)
RAC TCL ODM 아프리카향 IBIM_EN_Ver.1.0.indd 42 2019-04-08 오후 1:24:12
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Productinformatie
| Merk | Samsung |
| Model | AR12RRFLFWK |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 5411 MB |
