STULZ CyberRow
variables. Three secured menu levels (Control, Service and
Factory) will support unique passwords that must be entered
to access the menu screens so only authorized personnel may
perform modifications to the settings.
RESTORABLE PARAMETERS/FACTORY
DEFAULTS
Upon initial start-up the CyberRow system shall operate using
the setpoints programmed by the factory. The customer may
enter new operating parameters in the Control menu and
the system will then operate accordingly. The new setpoints
may be stored as, "Customer Default Setpoints". The primary
setpoints entered by the factory still remain stored in the
controller's memory as, "Factory Setpoints". The setpoints for
the system may be readjusted in the Control menu at any time.
If it becomes necessary, the customer may restore the setpoints
back to the Customer Default setpoint values or to the original
factory (primary) setpoint values.
A/C GROUPING pLAN OPERATION
(OPTIONAL)
Multiple CyberRow system controllers shall be able to connect
(grouped) to a pLAN local network, allowing the communication
of data and information from each controller to a central control
terminal or lead controller. The lead controller display screens
can be used to monitor and adjust group control variables for
the individual system controllers. Each
E²
controller connected
to the pLAN network shall be identified with its own unique
address.
Multiple CyberRow units consisting of up to eight STULZ
precision air conditioners equipped with like controllers may
be controlled and monitored via the
E²
series controller. With
multiple CyberRow units each unit can selectively be configured
as “Active” to operate as a primary A/C, “Capacity Assist” for
staged operation, or as “Standby” to come online in case of
a failed air conditioning unit to ensure continuous availability.
The controller may also be configured to rotate units with
timed duty cycling to promote equal run-time and ensure that
each CyberRow unit within the rotating group is operationally
exercised on a periodic timed basis.
BMS INTERFACE (OPTIONAL)
The
E²
series controller may incorporate a 10 Mbps
communication interface port that can be field connected
through a serial interface to a Building Management System via
Modbus, BACnet, SNMP, or HTTP as configured by the factory.
A controller interfaced to a network must be configured for
BMS communication.
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MAIN POWER SERVICE SWITCH
The CyberRow unit shall be provided with a unit mounted
main power service switch.
E²
SERIES CONTROLLER
GENERAL
The advanced microprocessor based
E²
Series controller
shall be equipped with flexible software capable of meeting
the specific needs of the application. The setpoints shall
be default and their ranges shall be easily viewed and
adjusted from the user interface display. The program and
operating parameters shall be permanently stored on a
non-volatile system in the event of power failure. The
controller shall be designed to manage temperature and
relative humidity (RH) levels to a user defined setpoint
via control output signals to the CyberRow unit. Control
parameters have variable outputs from 0 to 100% of the
full rated capacity.
The controller shall receive inputs for measurable control
conditions (temperature, relative humidity, and dew point)
via return air or remote mounted supply air sensors. The
internal logic will then determine if the conditions require
cooling. Control setpoints shall be established to maintain
design conditions of the installation. The controller will
respond accordingly to changes in these conditions and
control the output/demand for the appropriate mode of
operation until user defined conditions are achieved.
FIELD CONFIGURABLE
The program for the
E²
Series controller shall be field
configurable, allowing the operator the capability of
selecting control setpoints specific to the application.
Operator interface for the
E²
controller is provided
via a door mounted user interface display panel. The
display panel shall have a backlit LCD graphical display
and function keys giving the user complete control and
monitoring capability of the precision cooling system. The
menu driven interface shall provide users the ability to
scroll through and enter various menu screens.
PASSWORD PROTECTION
Access to the Info Menu, Alarms Log, and the ability to
monitor room conditions shall be allowed without the
use of a password. Modifications to the control setpoints
shall require the use of a password. The controller shall be
programmed to recognize predetermined security levels
before allowing access to display screens containing critical
PRODUCT GUIDE SPECIFICA
TIONS
