HygroMatik DBV-U126P, Operation And Maintenance Instructions

Page: 12 / 68

1.10 DBV-(U)P
Dry Level
If the water level in the steam cylinder matches the
dry level, the controls reports
Dry Level .
Stand-by Blow-down
If the unit is on stand-by for an extended time
period it can drain itself automatically. This feature
is activated and set by parameter A4. These
prevents standing cylinder water.
1.9 Fault Messages
Note:
Refer also to the "Faults" chapter
1.20.
The control type DBV-(U)P constantly monitors all
important functions of the humidifier. In the case of
a fault the humidifier switches off.
A flashing red LED shows a fault message. The
following messages can be displayed:
Fault Messages Monitored Function/
Monitored Part
Blow-down Fault Blow-down pump,
Water Drain
Max. Level Water Inlet Solenoid
Valve,
Varying Pressure in the
Airduct
Fault Filling Water Inlet Solenoid
Valve,
Water Supply
Fault Humidity Sensor Humidity Sensor
Fault Sensor Level Water Level Control
Steam-down time
exceeded Temperature Cut-outs,
Heaters,
Power Supply,
Main Contactor(s)
Blow-down Fault
The control type DBV-(U)P periodically activates
the pump to drain the cylinder water and smaller
pieces of granular materials.
If during the set blow-down time the cylinder water
level does not reach the “Dry Level”, the control
report
Blow-down Fault .
Max. Level
If the water level touches the sensor "Max. Level"
for the fifth time within a defined short time, the
display shows
Fault Max. Level . The control
resets the counter if there is no demand or if the
unit has been switched off.
Fault Filling
In the standard setting the control type DBV-(U)P
activates the solenoid valve for 30 minutes. If
during this time the water level in the cylinder has
not reached the level "Operational", the control
reports a
Fault Filling .
Fault Humidity Sensor
If the signal of the humidity sensor equals 0% RH
(cable break) for one hour, the control reports
Fault RH Sensor .
Fault Humidity Sensor
The level control device consists of two float
switches and three reed-contacts. The control
reports
Fault Sensor Level , if the float switches
activate the reed-contacts in a wrong order.
Steam-down time exceeded
If the hygrostat or the controller calls for humidity,
the control activates the water inlet solenoid valve
within a short time. If the control does not activate
the solenoid valve within several hours,
Steam-
down time exceeded is displayed.
$ $ $ $