Vertiv Liebert CRV Plus - Preparations for Startup

Vertiv | Liebert CRV+ | User Manual 44
Vertiv's engineers and personnel need to perform the check-up as per the table in Listing 2.15.
Listing 2.15
Items
Inspection contents
Results
Room
environment
Thermal isolation, moisture proof and sealing performances of
protective structure
Mounting base
Whether the fixing is reliable and whether the vibration proof pad
between the base and the unit is well installed
Display panel
Not damaged, good insulation and clean surface
Compressor
The fixing metal plate at the bottom has been removed and the
compressor has been fixed as well.
Filter net
All the filter nets have been installed in the right positions. Not
damaged and clean surface.
Outdoor unit
The outdoor unit has been installed in the right position. Pipes are
supported properly with suitable inclination; The oil trap has been
installed in the right position.
Fan
The air inlet and outlet areas are not blocked; When rotating the
blades, the blades shall not be stuck or have abnormal noises.
Heater (if
installed)
The heating component has been firmly fixed and the heating
cables are reliably connected.
Power supply
Check whether the voltage, phase rotation and frequencies of the
front end power supplies for the indoor and outdoor units are
normal, and whether the power supply cables are well connected
and whether each functional circuit breaker and contactor are
reliably connected.
SPD (if installed)
The SPD module should not be loosened, and the alarm terminals
should be correctly connected.
Controller
All the control wirings are reliable.
Pipes
The pipes are connected and supported reliably; The extension
kit (single direction valve and solenoid valve) is installed in the
right positions and directions; There is no exposed copper pipe
and the thermal insulation cotton is well attached.
2.5.2 Preparations for Startup
In this section, the following sections would be explained in brief to help users understand
the basics of the Commissioning process, but do remember that the commissioning will be
done by authorized engineers or trained personnel of Vertiv Co. only.
Inspection of Pipes
1. Checking the nitrogen pressure dwelling of the cooling pipes of the air cooled unit:
Requirements: Use high pressure nitrogen to dwell pressure. Dwell pressure is 40 bar, the dwell time ≥
24h and the pressure values before and after the dwell will be the same.