Maintenance; Periodic Checks; Cylinder Maintenance; Replacing The Cylinder - Carel UE001 Installation Operation User Manual

4 Maintenance

4.1 Periodic checks

After one hour of operation: For both disposable and cleanable cylinders, check that there are no
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significant water leaks.
Ev ery fifteen days or no more than 300 operating hours: For both disposable and openable
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cylinders check operation, that there are no significant water leaks and the general condition of the
cylinder. Check that during operation there is no arcing between the electrodes.
Ev ery three months or no more than 1000 operating hours: For disposable cylinders, check
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operation, that there are no significant water leaks and, if necessary, replace the cylinder; for cleanable
cylinders, check that there are no blackened parts of the cylinder. If there are blackened parts of the
cylinder, check the condition of the electrodes, and if necessary replace them together with the o-rings
and the cover gasket.
Annually or no more than 2500 operating hours: For disposable cylinders, replace the cylinder; for
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cleanable cylinders check operation, that there are no significant water leaks, the general conditions of
the cylinder, check that there are no blackened parts of the cylinder: if this is the case, check the
condition of the electrodes, and if necessary replace them together with the o-rings and the cover
gasket.
After five years or no more than 10,000 operating hours: For both disposable and openable
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cylinders, replace the cylinder. After extended use or alternatively when using water with a high salt
content, the solid deposits that naturally form on the electrodes may reach the stage where they also
stick to the inside wall of the cylinder; in the event of especially conductive deposits, the consequent
heat produced may overheat the plastic and melt it, and, in more severe cases, puncture the cylinder,
allowing water to leak out. As a precaution, check the deposits and the blackening of the wall of the
cylinder, and replace the cylinder if necessary.
CAUTION: always disconnect the main power before touching the cylinder in the event of leaks, as current may
flow through the water.

4.2 Cylinder maintenance

The life of the cylinder depends on a number of factors, including: the amount and type of mineral in the water,
the correct use and sizing of the humidifier, and the output, as well as careful and regular maintenance. Due to
the aging of the plastic and the consumption of the electrodes, even an openable steam cylinder has a limited
life, and it is therefore recommended to replace it after 5 years or 10,000 operating hours.
Important warnings
The humidifier and its cylinder contain live electrical components and hot surfaces, and therefore all service
and/or maintenance operations must be performed by expert and qualified personnel, who are aware of the
necessary precautions. Before performing any operations on the cylinder, check that the humidifier is
disconnected from the power supply. Remove the cylinder from the humidifier only after having drained it
completely using the manual drain button or procedure. Check that the model and the power supply voltage of
the new cylinder correspond to the data on the rating label.

4.2.1 Replacing the cylinder

IMPORTANT WARNING: the cylinder may be hot. Allow it to cool before touching it or use protective gloves.
To replace the cylinder:
completely drain the cylinder by pressing and holding the manual drain switch or by pressing the
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buttons simultaneously for 2 seconds to force a manual drain. This procedure can be stopped at
any time by again pressing the
turn the humidifier off and disconnect the main power;
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open and remove the cover;
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remove the steam hose from the cylinder;
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disconnect the electrical connections from the top of the cylinder;
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release the cylinder from its holding bracket and lift it up to remove it;
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install the new cylinder in the humidifier by performing the previous operations in reverse.
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WARNING: Electrical connections to the cylinder must be tight or possible fire hazard may result.
Threaded nuts on power wires must be connected w ith 22 to 29 inch-pounds of torque.
Installation, Operating & Maintenance Manual
and buttons for 2 seconds;
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and