Cornelius 3 User Manual

Page of 74
Viper Service Manual                              
Publication Number: 621360041TBSER
- 12 -
© 2010, IMI Cornelius Inc.
Water System
Incoming water flows to a water pressure regulator that is preset to 30 psig. It 
flows through the water booster pump, to the regulator and through a sold-out 
switch.
Once through the boost pump, the water supply is split to each barrel and is fed 
to the water flow controls. From the flow rate control, the water passes through a 
single ball check valve and mixes with the syrup in a wye fitting for injection into 
the freeze barrel.
Syrup System
Syrup enters the unit through a sold-out switch. It enters a similar flow control to 
the water system, passes through a single-ball check valve and into the wye fit-
ting where it meets the water for injection into the freeze barrel.
C
ONTROL
 P
ANEL
Introduction
The Viper unit uses a microprocessor based control system that monitors and 
controls all of the major systems and components of the machine. Temperatures 
and pressures are monitored, along with pumps, valves and the refrigeration 
system. They are managed by the control system to provide a consistently high 
quality product with optimal efficiency.
The control system is set up by the service provider to perform the tasks neces-
sary to keep the Viper unit operating correctly. In addition to controlling the unit, 
the control system keeps track of the diagnostic information used when adjust-
ing and/or repairing the machine.
The control system needs to be accessed in the following situations:
•  Installing the Viper
•  Modifying Operating Characteristics
•  Checking Performance
•  Servicing/Repairing the Machine
•  Checking for Error Messages
The control system is accessed using the control panel located behind the 
lighted merchandiser. The control panel contains an LCD display and buttons 
shown in Figure 6.
There are 2 levels of access to the control panel: The first level can be accessed 
by the operator for normal operation and the second level is used by qualified 
service technicians for installation and service functions. The service functions 
can be secured (locked out) so that an operator does not have access to them.