Huawei NetCol8000-A - Scenarios without a low-temperature component (NetCol8000-A045 Upflow); Scenarios without a low-temperature component (NetCol8000-A060 Upflow)

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Scenarios without a low-temperature component (NetCol8000-A045 Upflow)
Nut
Reducing valve
Nitrogen cylinder
Electronic
scale
Refrigerant cylinder
Vacuum
pump
Low-pressure needle valve
Exhaust pipe
needle valve
1.Leak checking
2.Vacuuming
3.Precharging refrigerant
Scenarios without a low-temperature component (NetCol8000-A060 Upflow)
1. Leak checking
2. Vacuuming
3. Precharging refrigerant
Low-pressure
needle valve
Exhaust pipe
needle valve
Nut
Reducing valve
Nitrogen
cylinder
Electronic
scale
Refrigerant
cylinder
Vacuum
pump