Samsung AS07A6MA - Setting the Off Timer; To Cancel the Off Timer

E-
17
ENGLISH
COMPLETING THE
I
NSTALLATION
Connecting Up and Purging the Circuit
The outdoor unit is loaded with sufficient R22 refrigerant for 16.5ft (5m) 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
capacity and could lead to a malfunction.
Refrigerant for air purging is not charged in the outdoor unit. Use Vacuum Pump as
shown at the figure.
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
torque wrench, applying the following torque.
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 counterclockwise.
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 183kgf
•c 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 16.5ft (5m) in length.
This operation can only be performed by a qualified refrigeration specialist.
☛ If you have used... Then...
✴✴07✴✴
‘A’ of refrigerant (R22) must be added for
each
extra 3ft(1m)
More than ft(5m)
of piping
Less than ft(5m) The purge time is normal.
of piping
Refer to the Service Manual for more details on this operation.
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 designs and shape are subject to
change according to the model.
Model
✴✴07/09✴✴
✴✴12✴✴
A
0.7oz(20g)
1.0oz(30g)
Pipe Outer Diameter Torque
Liquid refrigerant inch(6.35 mm) 10.1~12.3ft•lb(140~170kgf•cm)
Gas refrigerant inch(9.52 mm) 18.1~20.3ft•lb(250~280kgf•cm)
Gas refrigerant inch(12.70 mm) 27.5~30.4ft•lb(380~420kgf•cm)
1
4
3
8
1
2
16
1
2
16
1
2
☛ If you have used... Then...
✴✴09/12✴✴
‘A’ of refrigerant (R22) must be added for
each
extra 3ft(1m)
More than ft(7.5m)
of piping
Less than ft(7.5m) The purge time is normal.
of piping
24
3
4
24
3
4