Security; Pressure Sensors - Cornelius VIPER E 2 FLAVOR Manual

Display

SECURITY

CMP #X SENSORS
Option
# of Barrels
# of Compressors
Security
Compressor Sensors
Security
System security is located on the System menu. It allows a supervisor or service technician to keep unauthorized personnel
from accessing the Maintenance menu. This feature is activated on the System menu. When security is turned on, users can
only access the Main and Setup menus. The word LOCKED appears in the upper left corner of the display to inform users that
security is enabled.
Pressing the extreme Left and Right buttons (Buttons 1 and 5) on the bottom of the display simultaneously and holding them
for approximately five (5) seconds unlocks the Security menu. If security is left ON on the System menu, when the system
times out or when the user goes back to the Main menu, security is re-activated and the Maintenance menu is not accessible.
To disable security, access the System menu, highlight Security and press the OFF button.

Pressure Sensors

Pressure sensors allow the technician to view the high and low-side pressures in the refrigeration system without having to
connect external gauges to the system. To view this information, go to the Unit Data screen shown in
UNIT button. The System screen, shown in
The number and type of sensors in the unit are typically set at the factory and should not be changed. Data is only available on
the sensors installed. If a sensor that is not installed in the unit is activated, incorrect data is displayed. It is possible to install
sensors in the field, but it is not recommended because system refrigerant charge may be lost.
The low side pressure sensor is used to monitor compressor reversal. If it is not installed on the unit, the unit may not operate
properly.
When the pressure sensors selection is highlighted, pressing the NONE button removes the pressure readings from the Unit
Data screen, shown in
Figure 41
pressure reading is displayed.
© 2022, Marmon Foodservice Technologies Inc.
This selection allows the user to turn security on or off.
This selection allows the user to choose which pressure sensors are read for the compressor.
Button 2
NONE
, is displayed.
Figure 61
Figure 61. System Screen
. If LOW is selected, only the low pressure reading is displayed. If HIGH is selected, only the high
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Viper Installation, Service & Decommissioning Manual
Table 56.
Description
Button 3 Button 4
-
-
OFF
LOW HIGH
Button 5
+
+
ON
BOTH
and press the
Figure 41
Publication Number: 620073146SER