Hussmann ARL, Руководство техника, Страница: 25 / 62

Once the desired set point is displayed, press the ENTER
key on the Hand-Held device or the SELECT button on
the Safe-NET display module to store the new value to
non-volatile (NV) memory. The display will revert to
cycling between DSET and the new value.
Note:
The HIGH and LOW alarm settings are limited to +/– – 16
deg F from discharge air set point. Setting the discharge air
set point will not modify the current alarm settings.They
must be set independently to ensure proper alarming.
The discharge air set point has a range of – –55 to +170 deg
F. Proper performance is not guaranteed outside – –40 to
+50 deg F.
The Safe-NET system must be RESET for the new value to
take effect .
DSET may be selected as the default display item for the
Safe-NET display module.
PSEN
The PSEN option enables / disables password protection
for the DSET parameter and allows the TOD clock to be
set. This may be desirable when employees or service
personnel must have the option of changing the
operating set point of the refrigerated fixture. While
PSEN allows easy modification of the operating set
point and TOD clock, no other operational settings can
be modified without entering a password.
Setting this parameter is done in the SETUP menu. After
navigating to the PSEN sub menu item, the display will
cycle between PSEN and the current setting. While the
setting is being displayed, press ENTER on the Hand-
Held device or press the SELECT button on the
Safe-NET display module to allow editing of the value.
When the Safe-NET display module begins flashing the
value, use the UP or DOWN arrow keys on the Hand-
Held device or the UP /DOWN buttons on the Safe-NET
display module to step through the selections.
Once the desired setting is displayed, press the ENTER
key on the Hand-Held device or the SELECT button on
the Safe-NET display module to store the new value to
NV memory. The display will revert to cycling between
PSEN and the new value.
Note:
Factory default is NO to disable password protection for
CLOCK and DSET.
4-10
P/N 0461391A
MENUS
Menu Structure — PSEN