Stulz Ultra Series User Manual

STULZ Ultra-Series Humidifier Controller
24 (August, 2013)
Alarms 5.3.1
The red LED backlight within the alarm key will illuminate
any time an active alarm condition is present or previous
alarms existed without having been reset or cleared. An
audible alarm in the display will also activate when an alarm
condition occurs. The audible alarm may be enabled or
disabled in the Service>Options menu loop. The first active
alarm screen may be displayed by pressing the Alarm ( )
key. The Alarm display provides a text message describing
the abnormal operating condition.
Use of the Up (↑) and Down (↓) arrow keys allows scrolling
for any additional alarm messages. Only active alarm
screens will be displayed when the Alarm ( ) key is
pressed. The alarm screen display will remain unchanged
until the alarm condition is corrected and the alarm key is
pressed again to clear the alarm.
The application software supports two (2) types of alarms,
“Non-Critical” and “Critical”. Any alarm may be programmed
to activate the “User Configured” alarm relay contacts.
Non-Critical Alarms 5.3.2
A Non-Critical alarm will activate the alarm screen with
which it is associated. These alarms may be programmed
to activate the “Summary Fault” alarm and close the
“Summary Fault" relay contacts or the Custom alarm
contacts without stopping unit operation. The factory
programmed, Non-Critical alarms are:
• Low Humidity
• High Conductivity Pre-alarm
• Customer Alarm Input
• Low Air Velocity
• High Air Velocity
Critical Alarms 5.3.3
Critical Alarms will coincide with automatic shutdown of the
Humidifier(s) as needed to prevent possible system
damage. Any Critical alarm may be programmed to activate
the Custom alarm relay contacts.
The Humidifier(s) will remain shut down until the alarm
condition(s) are no longer sensed and the controller has
been reset. Critical alarms are “Hard” coded and cannot be
changed to Non-Critical. The Critical alarms are:
 Smoke Alarm
 Airspeed Sensor Failure
 Water Detector Alarm
 Condensate Pan Alarm
 High Humidity Limit Alarm
 Airflow Alarm
 Control Humidity Sensor Failure Alarm
 Cabinet Temperature Alarm
 NTC2 Alarm
 NTC3 Alarm
 NTC4 Alarm
In addition, the custom alarm outputs can be configured to
shut down the system.

Stulz Ultra Series Specifications

General

Brand	Stulz
Model	Ultra Series
Category	Controller
Language	English