Service manual

The level of the carbonated water within the stainless steel mixing tank is used to operate
the motor driven pump. The liquid level control, in conjunction with a probe housed in the
carbonator tank, controls the pump motor. The motor will come on when the carbonated
water within the mixing tank recedes to a predetermined low level and stops the pump
motor when the carbonated water reaches a predetermined high level.
During the cycle of operation, fresh water enters the carbonator tank through the soda jet
after passing through the water pump. The water pump has impellers, which drives the
water through the water coil then a dual check valve and then through the soda jet and
into the carbonator tank.
The position and angle of the soda jet is fixed to direct an extremely high velocity solid jet
of fresh water so as to impinge upon the surface of the stored body of carbonator water
within the stainless steel mixing tank. The force created by this jet of fresh water entering
the mixing tank causes all the water within to cascade and foamesce through the carbon
dioxide gas area in a continuous recirculating-manner.
This action causes a breakdown of the surface tension of the water, forming numerous
minute gases filled water bubbles. The micro thin walls of these water bubbles
surrounded by gas both inside and out, offer maximum water surface for the absorption
of the gas. The size opening through this jet permits large volumes of water to be
carbonated.
As the incoming water is being carbonated, the level within the tank rises to contact the
upper probe tip, which will de-energize a relay on the liquid level control and stop the
motor from turning the pump. This motor will be inactive until water within the tank
recedes below the long probe tip, at which time, the relay on the liquid level control will
close, engaging the motor once again.
REMOTE CIRCULATING COOLING SYSTEM (in the CR-UC2 only)
The remote station circulating cooling system is used as its name implies to cool the
water, and soda water lines between the dispenser and the remote stations.
The cooling is accomplished by circulating the water from the cold water bath of the
dispenser through tubing to the remote station and then returning this partially warmed
water to the water bath.
When installing stations remote from the dispenser cabinet, the following operations are
very important:
Location of the Cabinet: - Locating the dispenser cabinet properly depends upon two
factors: convenience to the user and convenience of installation and service.
If cabinet is not used as a serving station it is permissible to place it in a basement, back
room, or any other out of the way place. However, it is important to locate the cabinet as
close as possible to the remote station in order to keep the heat loss through the
insulated extended lines at a minimum. When used as a serving station, it is necessary
to place the cabinet where it will be most accessible to the operator.
Water shut off valves and power switches should be located as near the cabinet as
possible in order to facilitate service. Where an air-cooled condenser is used, there
should be enough space surrounding the cabinet to insure adequate air circulating
through the refrigeration condenser. Space should also be provided if possible, for doing
service work on the cabinet. Note: when units are located in isolated rooms outside
ventilation is necessary and air conditioning is recommended.
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