Stulz Ultra Series User Manual

STULZ Ultra-Series Humidifier Controller
(August, 2013) 3
2.0 DESCRIPTION
2.1 General
The microprocessor based, Ultra-Series controller is a
highly versatile and flexible humidification controller. It is
designed primarily for STULZ Ultrasonic Humidifiers with
variable humidity output. The controller is equipped with
factory configured software designed to precisely control
the operation of this Ultrasonic Humidifier.
The Ultra-Series controller is factory programmed therefore
most applications will require no additional field setup
except for the addressing of the humidifiers. However, the
set points and their ranges are easily adjusted from the
user interface display panel. The program and operating
parameters are permanently stored in FLASH-MEMORY in
case of power failure. The Ultra-Series controller may be
configured to monitor and control a complete humidification
system consisting of multiple ultrasonic humidification units.
Depending on the Humidifier capacity, a full size Ultra-
Series controller may hold output power supplies for up to 8
STULZ Ultrasonic Humidifiers. When controlling groups of
Humidifiers, auxiliary control boxes, containing additional
Humidifier output power supplies, may be utilized to
achieve up to 16 humidifiers on a system. Auxiliary control
boxes contain no controller or interface display panel. They
are powered independently of the controller allowing them
to be installed near the Humidifiers they operate, resulting
in reduced wire lengths and wire size.
Figure 1 - Ultra-Series Control Box
A smaller space saving "Trim" control box is also available
for powering smaller groups of humidifiers consisting of four
units or less. The Ultra-Series control box and auxiliary
control box are provided with a door interlocked, main
power disconnect switch with a lockable handle. The switch
must be turned "Off" to open the door of the box. The
disconnect switch isolates power only from the Humidifiers
connected to that box.
The Ultra-Series controller is designed to manage humidity
or dew point levels to a user defined set point via
proportionally controlled output signals to the Humidifier(s).
Control set points are established to maintain the necessary
level of humidification needed to achieve the room's design
conditions. The controller has the ability to monitor the
conditions (such as humidity, temperature, supply air
velocity) via sensors or BMS control inputs. The internal
logic determines if the room conditions require
humidification. The controller communicates with the
Humidifiers the percentage output they need to be
delivering in response to the demand for humidification. The
controller responds accordingly to changes in conditions
and proportionally varies the output(s) controlling humidity
production to maintain humidity levels to the control set
point.
2.2 Features
BMS Interface 2.2.1
The controller may incorporate a communication port that
can be field connected through a serial interface to a
Building Management System via Modbus, BACnet, SNMP
or HTTP protocol.
Field Configurable 2.2.2
Ultra-Series controllers are field configurable, allowing the
operator the capability of selecting control set points
specific to the application. Operator interface for the
controller is provided via an attractive, user interface display
panel. The display panel has a backlit LCD display and
function keys allowing the user to scroll through and enter
various menu loops. The menu driven loop structure is user
friendly with operator prompts making it easy to navigate
through the various screens.
Monitoring of room conditions and system operation is
allowed without entering a password. Modifications to the
control set points may be made with the use of a password.
Password Protection 2.2.3
Access to the Information menu and Alarms log is allowed
without the use of a password. The controller is
programmed to recognize predetermined security levels
before allowing access to display screens containing critical
variables. Only authorized personnel who possess a
thorough understanding of the system should make

Stulz Ultra Series Specifications

General

Brand	Stulz
Model	Ultra Series
Category	Controller
Language	English