User manual

Maintenance
141 Liebert
®
DS
™
The steam cylinder is disposable and must be replaced at the end of the cylinder’s life. Cylinder life
will vary according to water supply conditions and humidifier usage.
Removing the Old Canister
To replace a used-up humidifier cylinder, refer to Figure 104 and perform these steps:
1. Turn off the water supply to unit.
2. The old cylinder must be drained completely before removing. This is done by pushing the auto
on/off/drain switch to the Drain position.
3. When completely drained, push the auto on/off/drain switch to the Off position.
4. Open the main electrical disconnect during the entire cylinder change operation.
5. The power wires to the cylinder are attached by cylinder plugs to the electrode pins on top of the
cylinder. Pull up to remove the plugs from the pins.
6. Use slotted screwdriver to loosen the steam hose clamp(s)
7. Disconnect the steam hose by pulling it straight up.
8. Loosen reversible cylinder zip tie.
9. The cylinder is now ready to be lifted out of the unit.
Figure 104 Removing the old canister
!
WARNING
Risk of humidifier canister meltdown, smoke and fire. Can cause fire suppression system
activation, fire and smoke alarm activation, serious equipment and building damage, injury
and death.
Using a humidifier canister that has reached the end of it’s service life can be extremely
hazardous. If the canister cannot be replaced immediately at the end of life condition, turn Off
the power and water supply to the humidifier and remove the canister until a replacement
canister can be installed.
Table 59 Humidifier canister part numbers
Unit Model
200V, 208V, 230V 380/415V, 460V, 575V Humidifier Model
DS 028-042 163814P1 163814P4 MES 10
DS 053-105 163814P1 163814P2 MES 20