Samsung 12A1VB, Руководство по установке

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Connecting Up and Purging the Circuit
E-
15
ENGLISH
C
OMPLETING THE
I
NSTALLATION
A
B
C
D
B
(liquid)
Outdoor unit Indoor unit
Gas pipe side
Liquid pipe side
Stem cap
Valve stem
A
(gas)
Vacuum Pump
The outdoor unit is loaded with sufficient R22 refrigerant for 5 metres
of piping. The air in the indoor unit and in the pipe must be purged.
If air remains in the refrigeration pipes, it will affect the compressor,
reduce to cooling/heating capacity and could lead to a malfuction.
Refrigerant for air purging is not charged in the outdoor unit. Use Vacuum
Pump as shown at the figure.
☛
If you have used... Then...
More than 5 metres “A”g of refrigerant R22
of piping must be added for each
extra metre.
Less than 5 metres The purge time is normal.
of piping
1 Connect each assembly pipe to the appropriate valve on the outdoor unit
and tighten the flare nut.
2 Referring to the illustration opposite, tighten the flare nut first manually
and then with a wrench, applying the following torque.
Pipe Outer Diameter Torque (kg.cm)
Liquid refrigerant 1 6.35 mm(1/4”) 160
Gas refrigerant 1 9.52 mm(3/8”) 300
Gas refrigerant 12.70 mm(1/2”) 500
3 Connect the charging hose of low pressure side of manifold gauge to the
packed valve having a service port as shown at the figure.
4 Open the valve of the low pressure side of manifold gauge counter-
clockwise.
5 Purge the air from the system using vacuum pump for about 10 minutes.
- Close the valve of the low pressure side of manifold gauge clockwise.
- Make sure that pressure gauge show -0.1MPa(-76cmHg) after about
- 10minutes.
- This procedure is very important in order to avoid gas leak.
- Turn off the vacuum pump
- Remove the hose of the low pressure side of manifold gauge.
6 Set valve cork of both liquid side and gas side of packed valve to the open
position.
7 Mount the valve stem nuts and the service port cap to the valve, and
tighten them at the torque of 18N•m with a torque wrench.
8 Check for gas leakage.
- At this time, especially check for gas leakage from the 3-way valve’s
stem nuts, and from the service port cap.
Adding Refrigerant
Refrigerant must be added if the piping measures more than 5 metres in length.
This operation can only be performed by a qualified refrigeration specialist.
Refer to the Service Manual for more details on this operation.
Model
SH
✴✴
YAA(B)
The Others
30
20
A