5.
Remove the M4 x 12 pan head screws from the electric heater. Each electric heater is fixed by four screws (two
on top the two on bottom). Take out two electric heaters.
6. Inspect and clean heating elements.
7.
Inspect and tighten support hardware.
Figure 9.4 Removing Electric Heater (Only for CRC30)
Item
Description
1
Electric heater
9.9 Humidifier (Only for CRC30)
To replace the humidifier:
1.
Open the rear door and remove filters. For details on removing filters, see
2.
Drain all the water from the cylinder by turning the power switch to 1 on the electrical box near the humidifier.
3.
Disconnect the main circuit breaker.
4. Loosen the hose clamp and disconnect stream pipe from the top of the humidifier.
5.
Disconnect the electrode wires from the top of the humidifier.
6. Disconnect the level sensor cables from the top of the humidifier.
7.
Unscrew the soft pipe from the bottom of the humidifier.
9 Maintenance
63
Vertiv™ Liebert® CRV CRC30 and CRC60 Chilled Water Cooling System User Manual
