Vertiv Liebert PDX - Lamp Replacement and Periodical Checks

Enclosure F - Infrared Humidier
F - 3Liebert
®
PDX, EconoPhase Version - UM - 265133 - 29.08.2019
F. 4.2 - Changing Humidier Lamps
CAUTION: Touching quartz lamps with bare hands will severely shorten bulb life. Skin oils create hot spots on lamp surface.
Wear clean cotton gloves when handling lamps.
1. Remove the humidier pan (see F.4.1 - Cleaning Humidier Pan and Float Switch, Steps 1 to 11).
2. Disconnect power from the unit.
3. At the humidier, remove the screws and cover from the high- voltage compartment.
4. Disconnect one end of the purple jumper wires.
5. Using a continuity meter, locate the burned- out lamp.
6. Remove the lamp brackets under the lamps.
7. Loosen the two screws securing the lamp lead wires to the junction block.
8. Pull the bulb straight down and discard it.
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 to 9.
F. 4.3 - 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)
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 contactor 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.