Figure 7.2 Location of Electric Three-way Valve and Manual Shut-off Valve
Item
Description
Item
Description
a
CRC30
2
Button
b
CRC60
3
Manual shut-off valve
1
Electric three-way valve (in the open position)
3.
Check if the supply voltage is normal, if so switch on all the MCBs.
4. Press and hold the ON button on the HMI for three seconds. On the HMI, set the target value of temperature
and humidity. Check if the components are working properly via measuring the input voltage and current of
single device.
5.
Once the system is operating under load, check that fans are operating correctly and temperature, humidity,
and water flow are as required. And check if the sensor value needs to be calibrated.
7.2.2 Automatic Restart
The unit will automatically restart on the return of power after a power interruption.
7 Start-up
49
Vertiv™ Liebert® CRV CRC30 and CRC60 Chilled Water Cooling System User Manual
