2.
“Level Control”
a.
The FBD553D frozen beverage dispenser utilizes a proprietary liquid level control
system (patented) to hold a constant liquid level. A constant liquid level assures a
quality frozen product.
b.
If a more “wet” product is desired, the numerical setting (0-6) should be increased. If a
“drier” and colder product is desired, the numerical setting should be decreased.
c.
The default value set at the factory is 3. This setting should produce an excellent
quality product. (See Section 10 for instructions on changing settings.)
3.
Regulated CO
2
Injection Pressure
a.
The CO
2
injection pressure is set by adjusting the secondary regulators, located behind
the access panel below the control panel in the front of the machine. The left regulator
feeds the left and center barrels and the right regulator feeds the right barrel. The CO
2
regulators should be set at 28-32 PSIG (193.0 to 220.8 KPa). The unit then
automatically sets the chamber pressure between 25 and 30 PSIG (172.5 and
206.8 KPa).
NOTE
Some "citrus based syrups" have been shown to produce a better quality drink with a
lower chamber pressure. However, lowering the "Regulated CO
2
regulator" will affect
both left and center chambers. For adjusting individual chamber pressures, refer to
Section 10.
4.
Thaw and Freeze Settings
a.
The Thaw and Freeze settings signal the refrigeration system when to start freezing and
when to stop freezing. The liquid in the chamber freezes until it reaches the desired
frozen consistency; then the refrigeration system shuts off and the chamber begins to
thaw. The liquid continues to thaw until it reaches a consistency specified by the Thaw
value. The Thaw value is the point at which the refrigeration system turns back on and
refreezes the product. This assures the product is maintained in a good acceptable
quality frozen drink range.
b.
Prior to changing any Thaw or Freeze settings, make sure the brix and water flow rate
are correct and the liquid level control settings are properly set. Also assure the
chambers stay filled to the proper levels with the proper amount of CO
2
.
The optimum
frozen drink temperature is 24 to 28°F (-4.4 to -2.2°C) and should be checked prior
to making any adjustments.
(See Section 10 for instructions on changing settings.)
CAUTION
IF THE THAW - FREEZE IS SET AT A LOWER SETTING, COMPRESSOR “SHORT
CYCLE” CAN OCCUR THAT WILL CAUSE THE COMPRESSOR TO OVERHEAT. IF A
LOWER SETTING IS USED, THE
DISPENSER OPERATION MUST BE MONITORED
TO
INSURE THE COMPRESSOR DOES NOT “SHORT CYCLE”.
c.
The Thaw and Freeze settings may be raised or lowered to change the temperature of
the product. A default setting of 3 is set at the factory. To decrease the temperature,
decrease the numerical setting to 2 or 1; to increase the temperature, increase the
numerical setting to 4 or 5.
10. CHANGING FACTORY SET “LEVEL CONTROL”
NOTE
Always check brix, Regulated CO
2
setting, and water flow rates before adjusting “Level Control”.
The factory setting of the liquid “Level Control” may be changed to alter the consistency of the product.
Adjusting the liquid “Level Control” will change a drink that is too liquid or one that is frozen too hard.
A product that is frozen too hard will not allow the chamber to stay full and the drink will dispense with
sudden releases of CO
2
(“spitting”). A “too full” chamber may cause a “too wet” drink.
10.1 BEFORE CHANGING “LEVEL CONTROL” SETTINGS
A.
Each machine ships with preset level control values. These values should be correct for
normal operation of the machine and should not have to be modified.
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