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The Model 6321L is a freezer that dispenses frozen carbonated alcoholic beverages (see photo on front cover).
The freezer has two major components, the freezer sections (dispense head) and the product feed system (lower
cabinet area). The freezer consists of a freezing cylinder with a rotating internal auger (dasher) that is belt driven by
an electric motor. The auger scrapes frozen product off of the inside of the refrigerated cylinder. A torque sensing
mechanism controls compressor operation to maintain desired product consistency. The freezer has an air-cooled
refrigeration system and is mounted on a product feed base cabinet. The cabinet contains a carbonator, pumps,
interrelated tubing, and components to store, mix, and transfer carbonated liquid mix to the dispensing head.
Both the freezer and base cabinet are enclosed in independent steel cabinets. The freezer cabinet panels are easily
removed to simplify installation, service and maintenance. The base cabinet has service doors located at the front
and back for service and maintenance. Mix out indicator lights notify the operator when one or all of the product
mixes are out.
The 6311 Frozen Dispenser is the upper portion of the 6321L only.
Unit Part Numbers: 6321L 6311
Overall Dimensions
Height 61 1/8 in
26 ¼ in.
Width 19 ¾ in 13 in
Depth 33 5/8 in
28 ¾ in
Operating weight: (approx.) 300 lbs.
150 lbs.
Shipping Weight: (approx.) 325 lbs.
175 lbs.
Compressor Horse Power: ¾ ¾
Refrigeration System:
Refrigeration Type 404a 404a
Refrigeration Charge (See data plate) .
…..Expansion valve setting 35 PSI 35 PSI
Ambient Operating Temp:
Minimum Temperature 40° F 40° F
Maximum Temperature 100° F 100° F
Electrical Requirements:
Operating Voltage 115 V 115 V
Current Draw 15 A 15 A
A CO2 cylinder supplies carbon dioxide gas to an adjustable carbonator regulator and an adjustable CO2 pump regu-
lator. The pump CO2 regulator delivers CO2 to both the gas driven alcohol pump and syrup pump. The process
starts when plain (tap) water enters a booster pump. The water is then pumped into the carbonator and carbonated.
Carbonated water flows through a manual shut-off valve to an electric solenoid that has a flow control. At the same
time, alcohol from the alcohol rack, located in the front cabinet compartment, flows to the gas driven alcohol pump.
The alcohol is then pumped through a manual shut-off valve to the alcohol electric solenoid with flow control. A gas
driven syrup pump draws concentrated syrup from the Bag-In-Box containers located at the bottom, front of the
lower cabinet. The syrup concentrate is then pumped through a manual shut-off valve to the syrup's electric solenoid
with flow control. If the freezing cylinder pressure drops below 25 PSI, the solenoids open and feed product through
a check valve into an accumulator. The carbonated water, alcohol and syrup concentrate are mixed together in the
feed line. The mixed product flows from the accumulator to the freezing cylinder.
A clear, self-closing, dispensing valve is attached to the front of the freeze cylinder barrel. A pressure release valve
is incorporated into the dispensing valve that allows excess CO2 to be vented when filling the freeze cylinder with
product. This pressure release valve will also allow excess pressure to escape the freezing cylinder.
Theory of Operation
General Description
SPECIFICATIONS
Page 2 Crathco Beverage Freezers