36
ENG
“UEX-PLUS” +0300040EN - rel. 1.4 - 25.09.2015
installeruserservice
• The lifetime has expired as indicated in the manual (2,500 hrs for
disposable cylinders, 10,000 hrs for openable cylinders)
• Anomaly. Dark color appearing through the plastic (black, dark
grey/brown) because this would likely indicate that corrosion of
the electrodes is going on; in such a case, additionally, check that
the supply water be within the ranges given in the manual, always
remembering that softened water must be avoided
• Anomaly. Frequent drains along with EA/AF warnings: they indicate
the likely presence of foam or mineral deposits in the inner high-level
probe that generates false high-level/foam drains. Try to clean the
cylinder by activating the pre-fl ushing sequence. If the frequent drains
persist, then double-check that the supply water’s quality be within
the range specifi ed in the manual and replace the cylinder. Comment:
foam may happen, but if it happens too frequently, then it becomes
an anomaly
• Anomaly. Cracks on the plastic
• Anomaly. Water leakage from the connection between the lower and
upper (lid) parts of the cylinder. If the cylinder is a disposable, replace
it asap; if it is an openable cylinder, try to properly relocate the gasket
into its seat, eventually replace the cylinder if the leakage persists
• Anomaly. Evident signs of steam leakage on to the cylinder’s lid around
the electrodes power connections
• Anomaly. Any other evident or suspicious phenomenon that can be
linked to problems related to the cylinder
CAREL is available for further support in case of doubts or in case more
information is required
Replacement procedure:
1. empty all the water (cylinder replacement procedure, see maintenance
menu);
2. turn off the humidifi er (switch “0”), and open the mains disconnect switch
on the power supply (safety procedure);
3. wait for the humidifi er and the cylinder to cool down;
4. remove the front cover;
5. disconnect the electrical cables from the cylinder and steam hose;
6. release the cylinder from the locking device and lift it to remove it;
7. insert the new cylinder (make sure that the model and the power
supply of the new cylinder correspond to the rated data);
8. fasten the cylinder;
9. reconnect the electrical cables to the cylinder;
10. replace the front cover;
11. switch on the humidifi er;
12. reset cylinder operating hour counter (see maintenance menu);
13. Activate the wash new cylinder procedure (see maintenance menu).
11.5 Mechanically draining the water in the
cylinder
Drain due to gravity without activating the humidifi er, recommended if:
• humidifi er decommissioned;
• to empty the cylinder without switching the humidifi er on.
Mechanical drain:
• make sure that the humidifi er is not powered;
• remove the cover (see page XX);
• activate the mechanical device under the cylinder (see the fi gure
below).
Models UE001 to UE018 Models UE025 to UE130
A
A
Fig. 11.g
Periodical checks
• After one hour of operation: check for any signifi cant water leaks.
• Every 15 days or no more than 300 operating hours: check operation,
the absence of signifi cant water leaks, the general conditions of
the casing. Check that during operation there are no arcs or sparks
between the electrodes.
• Every 3 months or no more than 1000 operating hours:
- disposable cylinders: check operation, the absence of signifi cant
water leaks and if necessary replace the cylinder;
- openable cylinders: if there are signifi cantly blackened areas, check
the deposits on the electrodes and clean them, using the specifi c
electrode and gasket kit.
• Every year or no more than 2500 operating hours:
- disposable cylinders: replace;
- openable cylinders: if there are signifi cantly blackened areas, check
the deposits on the electrodes and clean them, using the specifi c
electrode and gasket kit.
• After 5 years or no more than 10,000 operating hours: replace the
openable cylinder.
After extended operation, or when using water rich in salts, the solid
deposits that naturally form on the electrodes may grow until attaching
to the inside wall of the cylinder. If these deposits are conductive the heat
generated may overheat the plastic until it melts, with the risk of very hot
water being released.
Important: In the event of water leaks, disconnect the power
supply from the humidifi er as the water may conduct electricity.
11.6 Cylinder connection, three-phase models
UE001 to UE130
production
(kg/h)
conductivity (μS/cm) power supply (V)
230 400
25 75/350 μS/cm A B
350/1250 μS/cm B B
35 75/350 μS/cm A B
350/1250 μS/cm A B
45 75/350 μS/cm A A
350/1250 μS/cm A B
65 75/350 μS/cm / A
350/1250 μS/cm / B
90 75/350 μS/cm / A
350/1250 μS/cm / B
130 75/350 μS/cm / A
350/1250 μS/cm / B
Tab. 11.h
The cable ends must be tightened with the top nut to 3 Newton • m.
(units with BL*T5* cylinder only)
1
2
3
1
2
3
A
B
C
F
E
D
A
2
3
3
1
1
2
B
A
B
C
F
E
D
Fig. 11.h
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