Devatec ELECTROVAP RTH Technical Manual page 58

E
System management - Messages
Alerts and alarms
ALARM
A2
1. Water pressure - It must be between 1 & 6 bar and
kept as constant as possible. If not, a water regulator
v alve must be installed on the supply line and
adjusted at 2 bar.
2. Water softener - In case a softener is used, make sure that
humidif ier is still supplied in water during the regeneration cycles.
3. Blue hose in f illing cup - The blue hose in the filling
cup is missing or mislocated. The blue hose must
hav e one end in the water f eed hole and the other
in the middle hole.
4. Steam hose - Make sure that the pitch of the steam
hose is constant and prev ent unecessary ups and
downs. The latter create pockets of condensate that
hamper the natural f low of steam. This generates an
undue pressure inside the tank that prev ents the water
to f lush in.
5. Water lev el detector - Lime deposits clog the water access to the detector. The latter should be cleaned up
together with the water supply union.
R26
Main board Ref 500102
7. Water lev el detection - Control water lev el electrode sensors, X1 connector on the water lev el management
board and X6 connector on the main board.
8. Electronics - Change the water lev el management board first. If the fault persists, change the main board.
V
LECTRO AP
This means that there is no water supply.
The water level does not reach the low water detection lev el (the
unit cannot produce steam). The f ault is trigged on 20 mn (for the
single tank humidifier) and 40 mn (f or the twin tank humidif ier) after
the water inlet is initiated.
When the f ault is displayed, the tank/s is/are drained out, the
general f ault alert is trigged on and the unit is stopped.
Causes and corrections
6. The draining v alve does not close - Either a
piece of chalk keeps the valv e open (this is
the most f requent occurrence) or the valv e
has become faulty. In one case, the complete
cleaning of the v alve solv es the issue and in
the other, the valv e must be changed.
In case the valv e must be changed (the D137
black v alve replaced by the AK Muller white
v alve), the RC3 resistance must be cut off on
the main board Ref. 500101 or the resistance
R26 on board Ref. 500102 (CMS v ersion).
RTH-V2
the
RC3
Pictures for illustrati ng pur poses o nly
Main board Ref 500101
58