Samsung AQB24J2WC Manual de Instalação descarregar pdf (Página 12)

E-12

Completing the Installation

Purging the Connected Pipes

The outdoor unit is loaded with sufficient R410A refrigerant for a 24.6ft(7.5m) pipe.

You should purge 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 and heating capacity and malfunction. Refrigerant for air purging is not charged in

the outdoor unit. Use Vacuum Pump as seen in the picture.

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.

3 Connect the charging hose of 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 Purge the air in the connected pipes 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

10 minutes.

This procedure is very important to avoid a gas leak.

- Turn off the vacuum pump.

- 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.

8 Check for a gas leak.

- At this time, especially check for a gas leak from the 3-way valve’s stem

nuts and from the service port cap.

7 Mount the valve stem nuts and the service port cap to the valve, and

tighten them at the torque of 183kgf•cm with a torque wrench.

Outdoor unit Indoor unit

Gas pipe side

Liquid pipe side

(liquid)

Stem cap

Valve stem

(gas)

Vacuum Pump

Adding Refrigerant

If you have used more than 24.6ft(7.5m), add “Q” of refrigerant for extra feet.

Refer to the Service Manual for further details.

Model

✴✴18✴✴

✴✴24✴✴

“Q” (R410A)/ft

0.21oz(6.1g)/ft

0.16oz(4.6g)/ft

Outer Diameter Torque

inch(6.35 mm) 10.1~12.3ft•lb(140~170kgf•cm)

inch(12.70 mm) 27.5~30.4ft•lb(380~420kgf•cm)

inch(15.88 mm) 31.8~34.7ft•lb(440~480kgf•cm)

AQB18J6WC_IM_E_25864 2006.4.14 3:29 PM Page 12

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Samsung AQB24J2WC Manual de Instalação Página 12

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