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Repair Section

(4) Checking gas leak

1) Remove the charging hose (green) from the

vacuum pump, and connect the hose to the

refrigerant cylinder (R-410A).

2) Loosen the nut on the gauge manifold side of the

charging hose (green).

3) Open the valve of refrigerant cylinder perform air

purging in the charging hose (green). Then

tighten the nut.

4) Open the high pressure valve of the gauge

manifold. Charge the system with refrigerant until

the low pressure gauge indicates 57 psi

(390 kPa). After charging is complete, close the

high pressure valve.

5) Open the valve of refrigerant cylinder perform air

purging in the charging hose (green). Then

tighten the nut.

6) Check carefully for gas leaks inside the

refrigerant system using the gas leak tester.

7) Repair any leak.

WARNING

Do not attempt any repair on a charged

system.

WARNING

Before checking for gas leaks, fully confirm

that there is nothing flammable in the area

to cause an explosion or fire. Contact of

refrigerant with an open fire generates

toxic gas.

I001901

Open The Valve

of Refrigerant

Cylinder

To Process Tube Fitting

Charging Hose

(Green)

Refrigerant

Cylinder R-410A

Red

Closed

Valve Setting

Air Purging

I002228

Closed

Open

Closed

Refrigerant

Cylinder R-410A

Valve Setting

Gauge Reading

57 psi

(390 kPa)

Open High Pressure

Valve

High Pressure

Side Tube

Low Pressure

Valve (Closed)

Process Tube Fitting

Refrigerant

Cylinder

Valve

(Open)

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Movincool Office Pro 12 / Office Pro 18 / Office Pro 24 Manuale di Servizio Pagina 62

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