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© STULZ GmbH, Hamburg
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3 - OPERATING
The humidifier starts operation and the controller indicates
(see chap. 11) one of the following options:
• the steam production (in %) with slave control;
• the measurement of the main transducer with autono
mous control;
• in the event where the humidifier is disabled, the segments
- - to the right light up, alternating.
alarm
dehum.
x1000
alarm
SEL
reset
PRG
dehum.
x1000
alarm
dehum.
x1000
alarm
SEL
reset
PRG
dehum.
x1000
Fig. 7.3.2.3
7.3.3 Display
On start-up all the LEDs and the segments of the digits come on for 1 second, then, once the initial waiting phase has
ended, indicated by --- the value of parameter C0 is displayed (in the event where the remote control is OFF, the symbol
-- is also displayed, alternating). The following functions are active:
• Pressing the SEL button displays the unit of measure of the currently displayed value for 1 second.
• Holding the
s
button displays the measurement of probe 1, preceded, for 1 second, by the unit of measure. This is valid
even if the probe is not connected.
• Holding the
t
button displays the measurement of probe 2, preceded, for 1 second, by the unit of measure. This is valid
even if the probe is not connected. In the event of an alarm, the PRG button resets the alarm signal (if the cause of the
alarm has been removed).
Furthermore, the frequently-used functional para meters can also be displayed, that is those more commonly used by the
appliance: To do this, follow the instructions in par. 8.2.
Fig. 7.3.3.1
7.3.4 Changing the set point
To change the set point (main control setting), follow the instructions in par. 8.1.
7.3.5 Alarm indication
In the event of an alarm state, LED 9 (see Fig. 7.3.1.1) starts flashing, while the display shows the alphanumeric alarm
code, alternating every 2 seconds with the programmed value of the operating parameter.
If more than one alarm is indicated, the display shows all the corresponding codes in sequence, at 2 second intervals.
At the same time, the controller activates the alarm relay (see par. 6.5.1). To interpret the type of alarm, refer to chap. 11.
The controller will con tinue to indicate the alarm state (even if it is no longer active) until the reset button is pressed; still
active alarm states can not be reset.
7.3.6 Manual drain function
As well as the drain button (see Fig. 7.2.3.2), the type H controller also features a manual drain function that is activated
during the operating phase (following the start-up sequence), with the following procedure:
1. press the
s
and
t
and buttons together for at least 2 s;
2. after 2 seconds, the drain electrovalve is activated, and the display shows the message “dr ”.
3. the cylinder is completely emptied, after which the controller returns to normal operation.
The procedure can be stopped at any time by pressing the
s
and
t
buttons together again for 2 seconds.
press for around 2 seconds
In the event where an alarm is in progress, the LED next to the ALARM marking lights up and the display shows the
corresponding code.
