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Viper Service Manual
Publication Number: 621360041TBSER - 30 - © 2010, IMI Cornelius Inc.
Manual Diagnostic
Menu
The Manual Diagnostic menu, shown in Figure 22, is used for troubleshooting
and testing the system on a component basis. It allows the service technician to
turn individual components of the system on and off for troubleshooting pur-
poses. Pressing the BACK button returns the display to the Main menu and
turns off all the active loads.
This screen should only be used by qualified technicians to troubleshoot
the system.
Figure 22. Manual Diagnostic Screen
The items shown in Table 25 are for the first barrel in the unit only. The list
includes additional components with their related barrel number, i.e. Hot Gas Sol
#2, etc.
CAUTION: The compressor can suffer damage if it is allowed
to run without either a hot gas defrost or liquid line solenoid
open. The software is designed to turn on the hot gas sole-
noid for a barrel to prevent damage from occurring.
Table 24
Step Action Procedure
1
Empty a barrel If the barrel has liquid in it, use the Purge procedure in
Table 21 to empty the barrel.
2
Rinse a barrel Go to the Barrel Status menu (Figure 6).
3
Select the barrel Use the Up and Down arrows to highlight the desired
barrel
4
Turn off the barrel Press the OFF button at the bottom of the display to turn
off the barrel.
5
Override Water Solenoid Press the manual bypass on the water solenoid and fill
the barrel with plain water. Use the relief valve on the
faceplate of the barrel to relieve pressure and com-
pletely fill the barrel.
6
Run the barrel motor Use the procedure in Table 23 to rinse the barrel.
7
Complete the procedure Repeat the Purge procedure in Table 21 to empty the
barrel.
Table 25
Display Description
POS LIGHTING This selection turns the Point-Of-Sale lighting on and off
COMPRESSOR #1 This selection turns the compressor on and off
HOT GAS SOL #1 This selection opens and closes the hot gas solenoid for barrel 1
MANUAL
DIAG
12:51P
MAR 04
POS LIGHTING OFF
COMPRESSOR #1 OFF
BACK ON OFF
HOT GAS SOL #1 ON
PRODUCT SOL #1 OFF
CO2 VALVE #1 OFF
LLS VALVE #1 OFF