Viper Operator’s Manual
Publication Number: 620073146OPR
- 10 -
© 2022, Marmon Foodservice Technologies Inc.
!
WARNING:
CO
2
Displaces Oxygen. Strict Attention must be observed in the prevention of CO
2
gas leaks in the entire CO
2
and FCB system.
If a CO
2
gas leak is suspected, particularly in a small area, immediately ventilate the contaminated area before attempting to
repair the leak. Personnel exposed to high concentration of CO
2
gas experience tremors which are followed rapidly by loss of
consciousness and possible death.
Replenishing CO
2
Supply
The Viper unit is designed to operate on a CO
2
input pressure of 70 to 75 psig. If the installation location has either an
independent tank and regulator or a bulk CO
2
supply that feeds more than one machine, a shutoff valve and secondary
regulator must be placed in the line from the bulk supply to the Viper unit to reduce the CO
2
pressure at the unit to 70-75
psig. Perform the procedure in Table 12 to pressurize the CO
2
system.
The CO
2
supply MUST be changed in accordance with local safety procedures. Maximum CO
2
pressure to the Viper unit
MUST NEVER EXCEED 75 psi. If pressure exceeds 75 psi, damage to the unit may result. Minimum CO
2
pressure to the Viper
unit is 70 psig.
W
ATER
Viper requires a minimum water flow rate of 100 gal. per hr. for a 2 barrel unit. Minimum water pressure is 25 psig.
Maximum water pressure to the unit is 100 psig.
Water Filters
Water filters are recommended to insure proper operation of the unit. Refer to local procedures for replacement intervals
and service.
Maintaining Product Quality
It has been determined that there are three main factors that affect the rate at which product quality diminishes, as
indicated by a change in product appearance. These factors are:
1.
Dispensed Product Throughput
2.
Programmed Defrost Scheduling
3.
Viscosity Setting
It is recommended that the following instructions be read and followed relative to operating and establishing settings on
the Viper equipment. Anyone who has not been trained to service this equipment should not attempt to modify equipment
settings. Contact an authorized service provider.
The following instructions are generic in nature. Your actual water system may vary according to your situation. Please
follow any specific instructions for your location.
Intelligent Defrost
TM
System
The control system in the Viper unit includes a function to automatically defrost product in the cylinder when product
throughput is not sufficient to maintain quality. It also allows the service provider to set defrost lockouts during busy times
during the day.
Sleep Mode Recommendations
Sleep Mode is recommended when the unit will not have any usage for a period of time over 3 hours. This increases the life
of the machine and reduces energy consumption.
A wake time must be programmed to return the unit to normal operation. It is recommended that the unit be programmed
to wake up approximately 20 minutes before product is needed. For ambient temperature higher than 75
o
F, the times may
increase as the ambient temperatures increases.
Viscosity Setting
The lowest possible viscosity settings are recommended to achieve desired drink quality. In most typical installations, using
sugar-based syrup allows the viscosity to be set slightly higher. Diet syrups freeze much more readily than sugar based
syrups, so the viscosity should be set lower for diet products.
This increased viscosity is achieved by freezing the product in the cylinder to a lower temperature, thereby increasing ice
crystal size and growth. As the ice crystal size increases, there is a potential for product quality to diminish.
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