Viper Service Manual
Publication Number: 621260373SER
- 46 -
© 2008-2012, IMI Cornelius Inc.
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 Figure 16 and press
the UNIT button. The System screen, shown in Figure 35, is displayed.
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.
Figure 35. System Screen
When the pressure sensors selection is highlighted, pressing the NONE button
removes the pressure readings from the Unit Data screen, shown in Figure 36. If
LOW is selected, only the low pressure reading is displayed. If HIGH is selected,
only the high pressure reading is displayed.
NOTE: If a pressure sensor is open, the pressure reading is 386 PSIG.
Figure 36. Unit Data Screen
SYSTEM
12:51P
MAR
04
#
OF
BARRELS
2
#
OF
COMPRESSOR
1
BACK
NONE
LOW
HIGH
BOTH
SECURITY
OFF
CMP
#1
SENSORS
BOTH
UNIT
12:51P
MAR
04
LINE
VOLTAGE:
229
LINE
FREQUENCY:
60
LOW
PSIG
#1:
60
HIGH
PSIG
#1:
174
DATA
BACK
BRL
UNIT
VER
Содержание VIPER 2 FLAVOR
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