Installation, Operating & Maintenance Manual
25
10/25/2004
Controller
Causes
Solution
Action Reset
display
Alarm
relay
Reset
relay
H
H
EA
Excessive foam in the
cylinder during boiling
The formation of foam is
generally due to the presence
of surfactants in the water
(lubricants, solvents,
detergents, water treatment
agents, softeners) or an
excessive concentration of
dissolved salts:
1. Drain the water supply lines
2. Clean the cylinder
3. Check for the presence of
softeners (in this case, use
another type of water or
reduce the softening)
Signal
only
Manual Active Manual
Ed
Drain malfunction
Check the drain circuits and
the correct operation of the
drain valve
Shut-
down
Manual Active Manual
Ec
High water
conductivity pre-alarm
Check the conductivity of the
supply water if necessary,
install a suitable treatment
system
Note: the problem will not be
resolved by softening the
supply water.
Signal
only
Auto
Not
active
-
E
-
High humidity in the
room (high temp.for T
control)
Check the operation of the
probe and the limit set for
parameter P2
Signal
only
Manual Active
Auto
E
-
Low humidity in the
room (low temp.for T
control)
Check the operation of the
probe and the limit set for
parameter P3
Signal
only
Manual Active
Auto
E
=
High hi-limit humidity
Check the operation of the
outlet probe
Signal
only
Manual Active
Auto
