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Vertiv I Liebert LPC I User Manual
5.6
Infrared Humidifier
Sedimentary material (such as mineral particles) accumulates on the water pan during the
operational flow. These sediments must be cleaned on a regular basis to ensure efficient
operation. However, the cleaning cycle varies because the quality of water differs from
region to region. Therefore, it is recommended to check and cleanse the water pan once a
month for optimal operation of the infrared humidifier. The auto-flush function of the
infrared humidifier can prolong the cleansing cycle. However, regular checks and
maintenance are mandatory from an operational point of view.
The following steps need to be implemented in the same hierarchy for maintenance and
inspection of the infrared humidifier:
1. Remove the water level standpipe to drain the water pan.
2. Disconnect the drainage pipe.
3. Remove the safety switch of the water pan.
4. Remove the fixing screws at both ends of the pan.
5. Pull out the water pan and clean it with water and a hard brush.
Once the water pan is cleaned, restore the water pan in the opposite sequence of steps
mentioned in the list, i.e. restore the water pan in its place and fix the fixing screws. Connect
the safety switch of the pan and connect the drainage pipe. Fix the water level standpipe to
complete the restoration process.
Prior to performing all the mentioned steps explained in the preceding list,
ensure that the power is cut off as it may lead to injury and fatality. The water in
the pan should be close to the room temperature before draining it from the
infrared humidifier to avoid personal injury.
5.7
Electric Heater
The Electrical heater contains three temperature switches that are serially connected to the
control loop. While two of the switches are automatic reset ones, the remaining one is a
manual reset switch.
Figure 5-1 shows a schematic representation of the three switches inside an electric heater:
Figure 5-1 Fin-tube type electric heater
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