Note: This operation is performed to charge the discharged system with refrigerant in liquid state through the high-pressure circuit. With the container upside down, the refrigerant is supplied to the system in liquid form.
1. After vacuum purging the system, completely close the high and low pressure valves.
2. Set the valve of the refrigerant container to the position specified above in the section "Actions with the charging system valve".
3. Open the high pressure valve completely by placing the refrigerant container upside down.
4. Charge the system with the required amount of refrigerant, determining its mass using scales. Excessive charging will lead to excess discharge pressure (in the high-pressure circuit). After charging, close the high-pressure valve. Amount of refrigerant to be charged: 500±25 g.
5. After charging the system with the required amount of refrigerant, close the control pressure gauge valve.
6. Use a leak detector to ensure that there are no leaks from the system (see section "Checking the tightness of the system").
Note: It is recommended to check the operation of the system before removing the test pressure gauges.