STULZ CyberRow DX Series Installation, Operation & Maintenance Manual
4-6
4.2.6.1 Password Protected Screens
Upon fi rst attempting to select a secure menu in a
given session, the "
Enter Password
" screen will be
displayed. This screen displays the current security level
authorized.
Enter Password:
0
JD 0
Level:0
(Current
Security
Level)
(Access
ID Code)
Enter Password Screen
A session is defi ned as from the time access is gained
to a secure menu until 60 seconds elapses with no key
activity. Security access will be terminated at this point
and the password will have to be re-entered to gain
access. The menus that may be password protected
by the user are the Control and Service menus. The
Factory level menu screens are also password protected,
however the password is set at the factory to limit access.
It is intended that access to the Factory menu screens
only be granted while the user is working with the
guidance of STULZ Product Support (see Section 6.0)
because incorrect settings made at that level could
unintentionally damage the equipment. The Access ID
Code in the bottom left of the "Enter Password" screen is
needed when contacting Product Support to determine
the correct Factory menu password for your specifi c
controller.
The level of authority is established by entering the
proper password for a given security level. The controller
is shipped from the factory with preset passwords for all
of the security levels.
Operators who are allowed access to the Service menu
(level 2) for example, must know the password to enter
that level. If the entered password equals or exceeds
the level requested during a given session, the operator
is allowed to access the requested loop. For example,
if the entered password allows access to level 2 and
the Control menu (level 1) is requested, access will be
allowed. If the entered password authority level is lower
than the level requested, the words "
WRONG PASSWORD
"
will appear for several seconds at the bottom of the
screen.
4.2.6.2 Wrong Password
Reset?
No
Enter Password:
0
JD 0
Level:0
** WRONG PASSWORD **
The “
WRONG PASSWORD
” message is displayed any time
an incorrect password has been entered and the Enter
(
) key has been pressed. If the “Wrong Password”
message appears, pressing the Enter (
) key will return
the operator to the “
Enter Password
” fi eld.
A requested menu screen is displayed any time a valid
password has been entered and the Enter (
) key
is
pressed.
NOTE
If you request the
Control
menu and enter the
Service
menu password, you are granted access to both.
4.2.6.3 Setting the Passwords
The initial passwords are set by the factory to 0001 for
the Control menu (Level 1) and to 0002 for the Service
menu (Level 2). Upon entering the Service>Save Cfg
menu, the operator is allowed to change the passwords
for the menus. If changed, from that point on access may
only be gained to that menu by personnel who know the
password.
4.3 System
Operation
CAUTION
Ensure all system hookups to the air conditioner(s) are
completed and that power is available.
1.
Turn the main power disconnect switch for the A/C
unit to "On". Upon applying control power, the controller
display function keys illuminate and the controller begins
conducting internal diagnostics to confi rm functionality.
The controller monitors the alarm inputs and alarm
logic to determine if it's safe to start the unit. After an
initialization period of about 30 seconds the Main screen
is displayed.
The Main Screen is a status screen displaying the current
date and time. It displays the current control temperature
and relative humidity and the current temperature and
dew point as calculated from the T/H sensor. It also
displays the current system operating mode(s).
2.
If the controller is confi gured for Automatic On
operation (standard), a status message "
Unit On
" then
appears in the display.
Summary of Contents for CyberRow DX CRS-042-G
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