Liebert CR012 Precision Air Conditioning User Manual
30 Chapter 2 Installation
The users have to obtain the power supply of external common alarm system. For an in-depth definition of the other
terminals, refer to the Appendix 1 Circuit Diagram.
Connecting the Solenoid valve of the Pipe Extension kit - (Optional for Site Installation)
The solenoid valve of the pipe extension kit consists of 2 control cables which are connected to their respective
terminals of the control board. For more specific connecting points on the interface board, refer to the connecting
terminal number of the liquid route solenoid valve depicted in the Appendix 1 Circuit Diagram.
Teamwork Control
To use the teamwork control function, connection the communication cable to terminals 61# & 62# on the TB2
terminal block. For more information on Teamwork Control refer to Section 3.7.
Checklist for the Completed Installation
Confirm the items listed in the table 2-17 on completion of the electrical installation:
Table 2-17
The power voltage is the same as the rated voltage on the unit nameplate
No open-circuit or short-circuit exists in the electrical connection
Confirm if the power cables and earth cables connected to the disconnect switch, indoor unit, and outdoor unit are
correct as per the norms.
The circuit breakers or fuses have correct ratings for the installed equipment (Take the current listed in the table under
Table 2-14 into consideration before selecting the respective circuit breakers or fuses)
The control connections are configured and subsequently, fixed properly
All the wiring and connector connections, including the fixing blocks, are fixed firmly and appropriately.
Do not power on or operate the installed unit as Vertiv's authorized professional technicians have to perform a check
and confirm whether it is good to go. Starting up and Operating the unit should only commence if the commissioning
process is successful, following which Vertiv’s engineers give the go-ahead.
2.5 Commissioning Overview
In Commissioning, there are 4 different sections starting with a Self Check, Preparation, Inspection of Auxiliary parts
and Cables, Start-up Inspection, Operating instructions, and Refrigerant Oil re-filling and Troubleshooting.
Remember that the Commissioning process can be performed only by Vertiv’s authorized personnel and engineers.
This section is for informational purposes only.
2.5.1 Self Check
In self check, verify whether the construction and installation meet the standard requirements to ensure normal
operation and enhanced service life of the unit.
Vertiv's engineers and personnel need to perform the check-up as per the table 2-18.
Table 2-18
Thermal isolation, moisture proof and sealing performances of protective structure
Whether the fixing is reliable and whether the vibration proof pad between the base and the unit is
well installed
Not damaged, good insulation and clean surface
The fixing metal plate at the bottom has been removed and the compressor has been fixed as well.
All the filter nets have been installed in the right positions. Not damaged and clean surface.
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.
The air inlet and outlet areas are not blocked; When rotating the blades, the blades shall not be stuck
or have abnormal noises.
The heating component has been firmly fixed and the heating cables are reliably connected.
Check whether the voltage, phase rotation and frequencies of the front-end power supplies for the
To Next Page
Loading...
