Vertiv Liebert CR045 - General Maintenance for the Electrode Humidifier; Operating Guidelines for the Electrode Humidifier

Vertiv | Liebert® CRV4 | User Manual 92
System Operation and Maintenance
8.7. General Maintenance for the Electrode Humidier
If the unit is equipped with electrodes for humidication, it should be regularly maintained.
8.7.1. Operating Guidelines for the Electrode Humidier
The electrode humidier kit consists of a bracket (including water pressure components such as inlet, outlet
solenoid valves), humidier canister, humidication control board CPY (located in a metal box close to the
humidier), power frequency transformer, high frequency current transformer, contactor, relay, water-in pipe,
drain pipe, relay socket and steam pipe as shown in Figure 8-3.
No. Description No. Description
1 Drain Pipe 5 Humidier canister
2 Water in pipe 6 Steam pipe
3 Outlet solenoid valve 7 Bracket
4 Inlet solenoid valve
Figure 8-3 Electrode Humidier
The micro-controller calculates if humidication is required based on the humidity and temperature values
from the temperature/humidity sensor. If a call for humidication is registered, the micro-controller will send
a humidication signal to the humidication control board and provide 24 V power supply to it. Then the
humidication control board will start the humidication process. The Humidication control board adopts
On/ O operation mode, and controls the humidication operation based on the programmed procedure. The
humidication control board is located in a metal box close to the humidier and its interfaces are shown in
Figure 8-4.