Table Of Alarms - Carel humiSteam x-plus User Manual

When an alarm is activated, the alarm button starts fl ashing
intermittently.
In these conditions, pressing the alarm button once displays the type of
alarm (and the code, in line with the CAREL humidifi er standard).
In the case of potentially dangerous alarms, the controller automatically
stops the production of steam. For some alarm events, the alarm relay is
also activated at the same time as the signa (see the table below).
alarms displayed (2)= meaning
alarm relating to cylinder 2
Alarm: EP
Low production
Low Production alarm
(Cylinder 1(2) Off)
Alarm: EF
No water
Lack of water
Cylinder 1(2)
Alarm: Ed Drain alarm
Drain alarm
(Cylinder 1(2) Off)
Alarm: EL
Low current
Low current
alarm
(Cylinder 1(2) Off)
Alarm: EH
High current
High current(
alarm
Cylinder 1(2) Off)
Alarm: EC
High
High conductivity
conductivity
(Cylinders Off) alarm
Warning: Ec
High supply
High conductivity
water
conductivity pre-
alarm

10. TABLE OF ALARMS

cause
solution
excessive reduction cylinder completely depleted or
in production water with excessive foam. Perform
maintenance on the cylinder
no supply water 1. check that the supply hose from
the mains to the humidifi er and the
internal hoses are not blocked or
choked and that there is suffi cient
pressure (0.1 to 0.8 MPa, 1 to 8 bar);
2. check the operation of the fi ll
solenoid valve;
3. check that the steam outlet is
not operating with excessive
backpressure, preventing the fl ow of
water into the cylinder by gravity;
4. check that the steam outlet hose is
not choked and that there are no
pockets of condensate
drain malfunction check the water drain circuits and the
correct operation of the electric drain
pump, and check the condition of the
fi lter inside the cylinder
power not available; with the unit off and disconnected
when the unit is from the mains, check the electrical
activated no steam is connections inside
produced
excess current in 1. check the operation of the electric
the electrodes; drain pump;
probable fault with 2. check the seal of the supply
the electrodes or solenoid valve when not energised;
water temporarily 3. drain some of the water and
too conductive restart.
(especially when 4. check for bridges between the
restarting after a electrodes.
short stop) 5. cylinder replacement and/or
maintenance
high conductivity of 1. check the limit threshold set;
the supply water 2. switch the unit off and clean the
electrodes that measure of the
conductivity of the water; if the
problem persists, change the
origin of the supply water or use a
suitable treatment system (partial
demineralisation).
N.B.: the problem is not resolved by
softening the supply water..
high water 1. check the conductivity of the supply
conductivity alarm water, if necessary use a suitable
warning treatment system.
N.B.: the problem is not resolved by
softening the supply water
29
Once the causes of the alarm are no longer present, the humidifi er and
the alarm relay output can be reset automatically or manually, according
to the type of fault, while the message displayed is reset manually (see
the table below). Even if no longer active, the alarm status continues to
be displayed until the "reset display" button is pressed.
Active alarm states cannot be reset.
If more than one alarm is active, the display shows all the codes in
sequence, after having pressed the alarm button once and then pressing
the "UP" or "DOWN button.
reset
Manual
Automatic
(automatic water
return procedure)
(see par. 4.4.10)
Manual
Manual
Manual
Manual
Manual
Automatic
"UEX-PLUS" +030220621 - rel. 1.4 - 04.08.2009
EN
alarm relay consequence
active
Stop
production
active
Stop
production
active Stop production
active
Stop production
active
Stop production
active
Stop production
not
signal only
active