Vertiv Liebert PCW - Page 57

Liebert PCW - UM - 273895 - 04.10.2018 F - 3
Enclosure F - Infrared Humidier
9. Wrap the lead wires once around the new lamp’s metal ends. This will support the lamp and allow for thermal expansion.
Insert the lead wires into the junction block and torque the screws
10. Reassemble by reversing Steps 1 through 9.
F.4.3 - Changing Humidier air lters
1. Disconnect power from the unit.
2. Pull out the cover from humidier.
3. Replace humidier air lters with new ones
4. Reassemble humidier cover.
F.4.4 - Periodical checks
1. Check drain lines and trap for clogs
2. Check/clean pan for mineral deposits
3. Clean reector
4. Check water make- up valve for leaks
5. Check humidier lamps (replace if burnt out)
6. Check wire connections (inside humidier box)
7. Check status of humidier air lters
Tab. 2 - Infrared Humidier-troubleshooting
Symptom Possible Cause Check or Remedy
No humidication
Humidier pan not lling
Check water supply.
Check ll valve operation
Check drain stand pipe adjustment
Check for clogged waterline
Control not calling for humidity Check monitor status
Humidity contact not pulling in
Check visually. If contact is made, check line voltage after con- tactor and fuses
or CBs.
Check for open humidier safety stat
Humidier bulb burned out
Replace bulb. Loosen lead on old bulb. Trim excess lead length on new bulb to
avoid shorts.