Huawei NetCol5000-A021HN12D 20020E1 Quick Manual page 23

Low-pressure needle valve
Discharge pipe
needle valve
Coupling nut
12
Power-On
NOTE
1. Users are classified as Admin and Operator users. Admin users have more rights than Operator
users. The preset password is 000001 for both types of users. For system security purposes,
change the preset password upon first login.
2. After login to the system using a user name, the user right is valid when you touch the screen all
the time. If you do not touch the screen, the user right is only valid for 3 minutes. To ensure
security, manually log out by tapping
Power-On
12.1
Switch on the smart cooling product circuit breaker in the upstream PDC, QF3 output power
breaker that controls the outdoor unit and compressor, QF4 circuit switch that controls the heater
and humidifier, MD1, and MD2.
Quick Settings
12.2
For initial power-on, the system enters the quick setting screen. Set the Language, Date format,
Date, Time, Zone, Monitor mode, and verifying the present voltage. For non-initial power-on, the
LCD automatically enters the home screen.
Temperature and Humidity Settings
12.3
NOTE
To set T/H control type, Temp control mode, cold aisle sensors 1, 2, and 3, and hot aisle
sensors 1, 2, and 3, log in as Admin.
1. Leak checking
2. Vacuumization
3. Precharging refrigerant
Valve
Valve
at the right corner of the home screen.
22
Reducing
valve
Nitrogen
cylinder
Vacuum pump
Refrigerant vessel
Electric balance