Vertiv I VRC Self-Contained System I User Manual
6 Startup Commissioning
This chapter describes the startup commissioning, including specific operations.
6.1 Preparations Before Commissioning
Mechanical part
• Connect the condensate water drain system piping and inspect for any leakage in the connections.
• Ensure that the unit has at least 30% of the designated head load. If not, use other heating devices
that compensate for the heat load to ensure the necessary amount of heat load for commissioning.
Electronic part
• Ensure that the input voltage of the main power supply is within ± 10% of the rated voltage and that
the power disconnector is closed.
• Ensure that the power cord and the communication cable are segregated from each other.
6.2 Start-up Inspection Checklist
Before powering up the unit, ensure the below mechanical and electrical inspections are properly checked
as per the Table 6-1 below.
Table 6-1 Start-up inspection checklist
Verify that the drainage pipe is tightly connected.
And there are no kinks or blockages in the hose.
Verify that the AC main voltage and frequency are normal. Make sure
that the main connection is correct and does not short circuit.
Make sure that the electrical and control connections are tight.
6.3 System Commissioning
Start up the unit
• Switch on the circuit breaker and connect to utility power.
• Press and hold the ‘ON’ button on the display board for 3 seconds to power up the unit.
• Pay attention to the controller display to ensure that there are no alarms or warnings displayed.
• There will be short vibration when starting or switching off. After running for more than half an hour,
ensure the operating status of the compressor, evaporator fan and condenser fan is smooth and that
there are no vibrations or any kind of noise from any of these components.
• Observe and monitor whether the system parameters are within the normal range, such as return air
temperature and supply air temperature, etc. as per the set operational functionality.
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