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9.2.2
Vapour production regulation
The production of vapour by the integrated humidifier constantly depends on the humidification demand according to ambient
humidity adjustment.
The programme adjusts humidity according to the reading of the humidity probe, the humidity setpoint and the humidity
differential. Using the PID control the humidity level is taken to the "Humidity setpoint" value as quickly as possible. The
production of vapour is proportional to the PID outlet demand.
The humidify setting parameter is under the "Set point" menu.
The range of values that may be set for the set point depend on the activation or deactivation of the dehumidify function. In
particular:
•
Dehumidification enabled The maximum humidify setpoint is the dehumidify setpoint – 5%.
•
Dehumidification disabled
This avoids overlapping of the set points and not to have a dead zone on adjustment.
The humidify differential parameter (regulation band) is under the "Regulations" menu, which can be accessed by entering
the "Service" password.
For the default values, see the parameters table.
The humidifier is enabled/disabled when demand (PID outlet) is 10% greater or lower.
The maximum production of vapour (P0 parameter in the CPY controller module) is set by default to 100%.
To change the maximum vapour adjustment set the relative parameters under the "Optional" menu, which can be accessed
by entering the "Service" password.
9.2.3
Initial pre-wash of the lines and the cylinder
Allows to clean the water lines and cylinder, most importantly after the hydraulic connections and/or replacing the cylinder.
The cylinder is filled and emptied 3 times in order to remove any impurities present in the pipes and cylinder.
The lines and the cylinder can be pre-washed at any time, using the screen or using terminal M2.7.
Pre-wash from terminal:
Access the "Manual" menu by entering the "Service" password.
1.
2.
Enable manual operations on the humidifier.
3.
Access
the
The service also finds the manual discharge override command in the same mask.
Pre-wash via terminal M2.7:
1.
Switch off the CPY board.
2.
Short circuit M2.7 on M2.5.
3.
Switch on the CPY board.
4.
Pre-washing starts.
9.2.4
Reset cylinder hour counter
The reset can be performed in the following way:
Access the "Manual" menu by entering the "Service" password.
1.
2.
Enable manual operations on the humidifier.
3.
Access the mask used to reset the cylinder operating hours.
The cylinder hour counter must be reset whenever the cylinder is changed in order to allow it to start rapidly.
9.2.5
Dilution drain
The humidifier drains and replaces automatically a part of water contained in the cylinder, in order to prevent excess
concentration of salts following the evaporation process.
The drain valve is activated for a set time when internal conductivity exceeds the maximum limit. This situation is indirectly
detected by calculating evaporation speed.
The electrodes are not powered during automatic draining to ensure the drained water is not live.
Version 38
The maximum humidify set point is 99%.
pre-wash
start
mask,
without
the
serial
humidification
request.
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