Note. This operation is performed to charge the discharged system with liquid refrigerant through the high pressure circuit. When the container is upside down, the refrigerant is supplied to the system in the form of a liquid.
1. After vacuuming the system, completely close the high and low pressure valves.
2. Set the valve of the refrigerant tank to the position indicated in the section above «Actions with the system charging valve».
3. Fully open the high pressure valve by placing the refrigerant container upside down.
4. Charge the system with the required amount of refrigerant, determining its mass using a balance. Overcharging will result in excessive discharge pressure (in the high pressure circuit). At the end of 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. Using a leak detector, make sure there are no leaks from the system (see section «System leak test»).
Note. Before removing the control pressure gauges, it is recommended to check the operation of the system.