Huawei NetCol8000-A - Scenarios with a low-temperature component (NetCol8000-A045;A055;A090 Downflow); Scenarios with a low-temperature component (NetCol8000-A060;A120 Downflow)

30
Nut
Reducing valve
Nitrogen cylinder
Electronic
scale
Refrigerant
cylinder
Vacuum
pump
Low-pressure needle valve
Exhaust pipe needle valve
Liquid pipe needle valve
1. Leak checking
2. Vacuuming
3. Precharging refrigerant
Scenarios with a low-temperature component (NetCol8000-A045/A055/A090
Downflow)
Scenarios with a low-temperature component (NetCol8000-A060/A120 Downflow)
Nut
Reducing valve
Nitrogen cylinder
Electronic
scale
Refrigerant
cylinder
Vacuum pump
Low-pressure needle valve
1. Leak checking
2. Vacuuming
3. Precharging refrigerant
Exhaust pipe
needle valve
Liquid pipe needle valve